Provenance & Chain of Custody

Every document in this archive has a recorded origin, legal basis, and SHA-256 hash computed at the time of download. This page is the verification record — it exists so that anyone can independently confirm what we have and where it came from.

Legal Status Key

Code	Meaning
PD	Public domain — U.S. government work, no copyright restrictions
OA	Open access — author or publisher made freely available
RC	Research copy — acquired for scholarship, original remains under publisher copyright

Tier 1 — Hamilton’s Own Writing

These are documents authored by Margaret Hamilton herself. They represent her direct voice and analysis.

bitsavers-1971/ — Computer Got Loaded (Datamation letter)

Hamilton’s famous “Computer Got Loaded” letter to the editor, published in the March 1, 1971 issue of Datamation magazine (p. 13). Her first-person account of the Apollo 11 1202/1201 alarms during the lunar descent.

Field	Value
Title	Datamation, March 1, 1971 (contains Hamilton’s “Computer Got Loaded” letter)
Author	Margaret H. Hamilton (letter, p. 13); various (magazine)
Year	1971
Source	bitsavers.org
Legal	Archived magazine scan. Original copyright Cahners Publishing.
File	`19710301.pdf`
Size	13,406,989 bytes
Extraction	Pending

Source URL:

bitsavers.org/pdf/datamation/Datamation_1971-03-01.pdf

SHA-256:

839a3049d9aad819a0ec524b41d9da98a480c8432673fc92642bf04c49056d59

hamilton-zeldin-1974/ — Higher Order Software: Space Shuttle Prototype

The earliest Hamilton & Zeldin paper in the archive. Introduces Higher Order Software (HOS) methodology applied to a Space Shuttle prototype, laying the theoretical groundwork for the formal methods that would become USL.

Field	Value
Title	Higher Order Software Techniques Applied to a Space Shuttle Prototype Program
Authors	Margaret H. Hamilton, Saydean Zeldin
Year	1974
Published in	Symposium on Programming 1974, LNCS 19: 17—32
DOI	`10.1007/3-540-06859-7_121`
Source	Springer (via Sci-Hub)
Legal	Paywalled (Springer). Research copy.
File	`hamilton-zeldin-1974.pdf`
Size	1,144,248 bytes
Extraction	Pending

DOI URL:

doi.org/10.1007/3-540-06859-7_121

SHA-256:

1255d49058752d433bdd6178c1a7aeac775d9aa8f22140045b9fbe12ff7c7df8

hamilton-zeldin-1976/ — Higher Order Software Methodology

The foundational IEEE TSE paper defining Higher Order Software as a formal methodology. This is the most-cited Hamilton & Zeldin paper and establishes the axiomatic basis for software correctness that runs through all of Hamilton’s subsequent work.

Field	Value
Title	Higher Order Software — A Methodology for Defining Software
Authors	Margaret H. Hamilton, Saydean Zeldin
Year	1976
Published in	IEEE Trans. Software Eng., 2(1): 9—32
DOI	`10.1109/TSE.1976.233798`
Source	IEEE (via Sci-Hub)
Legal	Paywalled (IEEE TSE). Research copy.
File	`hamilton-zeldin-1976.pdf`
Size	7,588,000 bytes
Extraction	Pending

DOI URL:

doi.org/10.1109/TSE.1976.233798

SHA-256:

206265fad607d59001a1d474f8477c6afccb1c99fae472b5c74eefe1aa89ccd2

hamilton-zeldin-1978/ — Reliability in Terms of Predictability

Presented at COMPSAC 1978. Develops the argument that software reliability should be defined in terms of predictability — a system is reliable if its behavior can be fully predicted before execution.

Field	Value
Title	Reliability in Terms of Predictability
Authors	Margaret H. Hamilton, Saydean Zeldin
Year	1978
Published in	COMPSAC 1978: 657—662
DOI	`10.1109/CMPSAC.1978.810516`
Source	IEEE (via Sci-Hub)
Legal	Paywalled (IEEE). Research copy.
File	`hamilton-zeldin-1978.pdf`
Size	660,445 bytes
Extraction	Pending

DOI URL:

doi.org/10.1109/CMPSAC.1978.810516

SHA-256:

d664308835a2e66c36b8cb52a3befad49314286a1d6a6ddab37c9366e2e89915

hamilton-zeldin-1979/ — Design and Verification

Published in the Journal of Systems and Software. Examines the relationship between how software is designed and how it can be verified — arguing that proper design makes verification inherent rather than an afterthought.

Field	Value
Title	The Relationship Between Design and Verification
Authors	Margaret H. Hamilton, Saydean Zeldin
Year	1979
Published in	J. Systems & Software, 1: 29—56
DOI	`10.1016/0164-1212(79)90004-9`
Source	Elsevier (via Sci-Hub)
Legal	Paywalled (Elsevier). Research copy.
File	`hamilton-zeldin-1979.pdf`
Size	3,268,858 bytes
Extraction	Pending

DOI URL:

doi.org/10.1016/0164-1212(79)90004-9

SHA-256:

42c292982301eccc127d52d170a8ea06d83480a16b0482e4c1c5846f96f9c3cc

hamilton-zeldin-1983/ — Functional Life Cycle Model: USE.IT

The last Hamilton & Zeldin paper in the archive. Introduces the USE.IT automation tool and the functional life cycle model — the direct precursor to Hamilton’s Development Before the Fact methodology.

Field	Value
Title	The Functional Life Cycle Model and Its Automation: USE.IT
Authors	Margaret H. Hamilton, Saydean Zeldin
Year	1983
Published in	J. Systems & Software, 3(1): 25—62
DOI	`10.1016/0164-1212(83)90004-3`
Source	Elsevier (via Sci-Hub)
Legal	Paywalled (Elsevier). Research copy.
File	`hamilton-zeldin-1983.pdf`
Size	3,693,069 bytes
Extraction	Pending

DOI URL:

doi.org/10.1016/0164-1212(83)90004-3

SHA-256:

da7b92eec5d9cfaaabfb5781cd583b37fc616ef0e37996daa57cf2d6f0e0640a

hamilton-hackler-1990/ — 001: Rapid Development Approach

Presented at the IEEE Rapid System Prototyping workshop. Describes the 001 Tool Suite as a system that supports its own life cycle — an early articulation of what would become the Development Before the Fact paradigm.

Field	Value
Title	001: A Rapid Development Approach for Rapid Prototyping Based on a System That Supports Its Own Life Cycle
Authors	Margaret H. Hamilton, William R. Hackler
Year	1990
Published in	RSP 1990: 46—62
DOI	`10.1109/IWRSP.1990.144033`
Source	IEEE (via Sci-Hub)
Legal	Paywalled (IEEE). Research copy.
File	`hamilton-hackler-1990.pdf`
Size	1,289,123 bytes
Extraction	Pending

DOI URL:

doi.org/10.1109/IWRSP.1990.144033

SHA-256:

dbf5f3f96d8b8519e2e60f45c61d08c169ec98c531bd87a82969e2540317f643

hamilton-hackler-1991/ — Prototyping Distributed Environments with 001

A short RSP 1991 paper on applying the 001 Tool Suite to distributed systems prototyping.

Field	Value
Title	Prototyping Distributed Environments with 001
Authors	Margaret H. Hamilton, Ron Hackler
Year	1991
Published in	RSP 1991: 110—111
DOI	`10.1109/IWRSP.1991.218618`
Source	IEEE (via Sci-Hub)
Legal	Paywalled (IEEE). Research copy.
File	`hamilton-hackler-1991.pdf`
Size	190,076 bytes
Extraction	Pending

DOI URL:

doi.org/10.1109/IWRSP.1991.218618

SHA-256:

3594ca52fe39877f07a3c26bba8528932e2007720e5b5a71f05efc5d6e59ad46

hamilton-1994/ — Preventative Software Systems

Presented at COMPSAC 1994. Articulates the concept of “preventative” software systems — systems designed to prevent errors from occurring in the first place, rather than detecting them after the fact.

Field	Value
Title	Preventative Software Systems
Author	Margaret H. Hamilton
Year	1994
Published in	COMPSAC 1994: 410—416
DOI	`10.1109/CMPSAC.1994.342770`
Source	IEEE (via Sci-Hub)
Legal	Paywalled (IEEE). Research copy.
File	`hamilton-1994.pdf`
Size	985,604 bytes
Extraction	Pending

DOI URL:

doi.org/10.1109/CMPSAC.1994.342770

SHA-256:

04245866903cc33a531fcdd762da680629cb87cf9a761c407ccf02b47ba7abf7

hamilton-2004-mapld/ — Heart and Soul of Apollo

Hamilton’s MAPLD conference presentation. This is a binary PowerPoint file, not a PDF.

Field	Value
Title	The Heart and Soul of Apollo: Doing It Right the First Time
Author	Margaret H. Hamilton
Year	2004
Venue	MAPLD International Conference
Source	klabs.org
Legal	OA
File	`heart-and-soul-of-apollo.ppt`
Format	PowerPoint (.ppt) — not PDF
Size	4,702,208 bytes
Extraction	Not performed (binary PPT; manual review required)

Source URLs:

Abstract: klabs.org/mapld04/abstracts/hamilton_a.html
File:     klabs.org/mapld04/presentations/session_s/8_s216_hamilton_s.ppt

SHA-256:

c950b91d5afdc3a249b6989e23533b00e1e00fd07e83eceae1347cda772fdaa9

hamilton-hackler-2007-cser/ — USL for Preventative Systems Engineering

Presented at the 5th Annual Conference on Systems Engineering Research at Stevens Institute. Applies the Universal Systems Language to the discipline of preventative systems engineering.

Field	Value
Title	Universal Systems Language for Preventative Systems Engineering
Authors	Margaret H. Hamilton, William R. Hackler
Year	2007
Published in	Proc. 5th Annual Conf. Systems Engineering Research (CSER), Stevens Institute, paper #36
DOI	None
Source	Hamilton Technologies, Inc. (htius.com)
Legal	OA (author’s copy)
File	`hamilton-hackler-2007-cser.pdf`
Size	434,176 bytes
Extraction	Pending

Source URL:

htius.com

SHA-256:

bc29e14a56423b84ba514a736f77f3b3353cef5c940a64dc76af73a373379fe8

hamilton-hackler-2007-incose/ — Formal USL Semantics for SysML

Published in the INCOSE International Symposium proceedings. Provides a formal universal systems semantics grounding for SysML using USL.

Field	Value
Title	A Formal Universal Systems Semantics for SysML
Authors	Margaret H. Hamilton, William R. Hackler
Year	2007
Published in	INCOSE Int’l Symposium, 17(1): 1333—1357
DOI	`10.1002/j.2334-5837.2007.tb02952.x`
Source	INCOSE/Wiley (via Sci-Hub)
Legal	Paywalled (INCOSE/Wiley). Research copy.
File	`hamilton-hackler-2007-incose.pdf`
Size	1,090,480 bytes
Extraction	Pending

DOI URL:

doi.org/10.1002/j.2334-5837.2007.tb02952.x

SHA-256:

e8f6a3ccba448fa41d927180bdfc21b03325fd586c6a13dc268e09c194d6a6a8

hamilton-hackler-2008/ — USL: Lessons Learned from Apollo

The bridge paper between Apollo experience and USL formal theory. Published as an IEEE Computer cover feature.

Field	Value
Title	Universal Systems Language: Lessons Learned from Apollo
Authors	Margaret H. Hamilton, William R. Hackler
Year	2008
Published in	IEEE Computer, 41(12): 34—43
DOI	`10.1109/MC.2008.541`
Source	Hamilton Technologies, Inc. (htius.com)
Legal	OA (author’s copy)
File	`r12ham.pdf`
Size	1,480,864 bytes
Extraction	Complete

Source URL:

htius.com/Articles/r12ham.pdf

Wayback Archive:

web.archive.org/web/20250313214642/http://www.htius.com/Articles/r12ham.pdf

SHA-256:

356da2bec3f4b63ce6de50e433ea6298bff3c88e3af7033917e5687416fca94e

hamilton-2012/ — USL and the 001 Tool Suite

Hamilton’s webinar presentation for the IEEE Computer Society / Lockheed Martin series. A comprehensive overview of USL and its implementation as the 001 Tool Suite.

Field	Value
Title	Universal Systems Language (USL) and its Automation, the 001 Tool Suite
Author	Margaret H. Hamilton
Year	2012
Venue	IEEE Computer Society / Lockheed Martin Webinar Series, September 27, 2012
DOI	None
Source	Hamilton Technologies, Inc. (htius.com)
Legal	OA (author’s presentation)
File	`hamilton-2012.pdf`
Size	11,460,608 bytes
Extraction	Pending

Source URL:

htius.com

SHA-256:

dc2a49ead5df6c7af435d7bba3ce2ca60c58f790affd4b24ae507f0dfb60c081

hamilton-2018/ — What the Errors Tell Us

Hamilton’s 2018 IEEE Software article reflecting on error categories and what they reveal about system design. Draws on decades of experience from Apollo through USL.

Field	Value
Title	What the Errors Tell Us
Author	Margaret H. Hamilton
Year	2018
Published in	IEEE Software, 35(5): 32—37
DOI	`10.1109/MS.2018.290110447`
Source	IEEE Xplore (via Sci-Hub)
Legal	Paywalled (IEEE Software). Research copy.
File	`What_the_Errors_Tell_Us.pdf`
Size	1,258,593 bytes
Extraction	Pending

DOI URL:

doi.org/10.1109/MS.2018.290110447

SHA-256:

28da75b77b96529befce7c9a2e4b827edace1a2b50477bab0e5947bc312e1d53

hamilton-2019/ — The Apollo On-Board Flight Software

Hamilton’s 2019 retrospective on the Apollo flight software effort, published through Draper Labs’ “Hack the Moon” project. Two exports of the same source document.

Field	Part 1	Part 2
Title	The Apollo On-Board Flight Software (Part 1)	The Apollo On-Board Flight Software (Part 2)
Author	Margaret H. Hamilton	Margaret H. Hamilton
Year	2019	2019
Source	Draper Labs “Hack the Moon”	Draper Labs “Hack the Moon”
Legal	OA	OA
File	`mhh-software-part1.pdf`	`mhh-software-part2.pdf`
Size	90,176 bytes	103,626 bytes
Extraction	Complete	Complete

Source URLs:

wehackthemoon.com/sites/default/files/2019-03/mhh.software.final-1.pdf
wehackthemoon.com/sites/default/files/2019-03/mhh.software.final-2_0.pdf

SHA-256 hashes:

Part 1: 4649af55c2d8e303d845c192a9320405d864f9dda96b43ae815ac4dcd644410a
Part 2: 5710f52c0d60d54ffbaa863f5e165d1cea41f7fa227407ef073d7c56caee3e45

hamilton-1972-colossus/ — GSOP Colossus 3: Erasable Memory

Primary source documents from Hamilton’s direct technical leadership of the Apollo software effort. These are the governing specifications for how the AGC’s 4KB of erasable memory was allocated across mission phases.

Field	CSM Version	LM Version
Title	GSOP for Manned CSM… using COLOSSUS 3, Sec. 7: Erasable Memory	Apollo GNC: GSOP for Manned LM… using COLOSSUS 3, Sec. 7: Erasable Memory
Author	M. H. Hamilton et al. (MIT IL)	M. H. Hamilton et al. (MIT IL)
Year	1972	1972
Report #	R-577-REV-01 / NASA-CR-128689	—
NTRS ID	19730007899	19720025984
Source	NASA Technical Reports Server	NASA Technical Reports Server
Legal	PD	PD
File	`colossus3-csm-erasable.pdf`	`colossus3-lm-erasable.pdf`
Size	2,906,712 bytes	1,667,245 bytes
Extraction	OCR complete	OCR complete

Source URLs:

ntrs.nasa.gov/api/citations/19730007899/downloads/19730007899.pdf
ntrs.nasa.gov/api/citations/19720025984/downloads/19720025984.pdf

SHA-256 hashes:

CSM: a321ff9a2d1713aebaf0170e1aa913129679d759b1d7d3519604c9907973c7b1
LM:  49da2619099fc13d7bc470d89e85017ba7d0939ce2137c27c9079ce46a9dc6bb

hamilton-1972-skylark/ — Skylark GSOP Sections

Post-Apollo specifications for Skylab (“Skylark” was MIT’s internal designation). Three sections of Report R-693 from different sources and years.

Field	Section 2	Section 4	Section 7
Title	Data Links	Operational Modes	Erasable Memory Programs
Author	M. H. Hamilton (MIT IL)	M. H. Hamilton (MIT IL)	MIT Instrumentation Lab
Year	1972	1972	1973
Report #	R-693	R-693	R-693
NTRS ID	19720017954	19720024991	—
Source	NTRS	NTRS	ibiblio.org (Virtual AGC)
Legal	PD	PD	PD
File	`skylark-section2-data-links.pdf`	`skylark-section4-operational-modes.pdf`	`skylark-section7-erasable-memory.pdf`
Size	5,071,147 bytes	14,100,246 bytes	4,766,059 bytes
Extraction	OCR complete	OCR (47% confidence)	OCR complete

Source URLs:

ntrs.nasa.gov/api/citations/19720017954/downloads/19720017954.pdf
ntrs.nasa.gov/api/citations/19720024991/downloads/19720024991.pdf
ibiblio.org/apollo/Documents/R-693-GSOP-Skylark1-Section7-ErasableMemoryPrograms.pdf

SHA-256 hashes:

Sec. 2: c296e9abdf4c4f566492258cd30c209f437a26c8710f929ae55c61ab6a794a7b
Sec. 4: 4452721d2d963d9f1bb1f5b1498ae4736e24cb302eb0439d09ef048f81dffa18
Sec. 7: b02736c4e765277d17fd2205f2ea3dccfec05b116ed3a3049ff85e1a61aa7af9

oral-history-of-margaret-hamilton-2017/ — Oral History of Margaret Hamilton

47-page interview transcript conducted by David C. Brock for the Computer History Museum. Covers Hamilton’s full career arc from weather prediction for Lorenz through Apollo to USL. Includes footnotes added by Hamilton in June—August 2021 citing her published work.

Field	Value
Title	Oral History of Margaret Hamilton
Interviewer	David C. Brock
Year	2017
CHM Reference	X8164.2017
Source	Computer History Museum
Legal	© 2017 Computer History Museum
File	`102738243-05-01-acc.pdf`
Size	466,926 bytes
Extraction	N/A (born-digital transcript)

Source URL:

computerhistory.org/collections/catalog/102738243

SHA-256:

4fe522d686f23511364f0bbf899085655b55780c6672941ac844a0955746cc33

Tier 2 — Apollo Software Context

Documents that frame Hamilton’s contributions within the broader Apollo program. All are public domain U.S. government works.

johnson-giller-1971/ — MIT’s Role in Apollo, Vol. 5: Software

The definitive institutional account of the Apollo software effort, written while the program was still active. At 337 pages, the most content-rich document in the archive.

Field	Value
Title	MIT’s Role in Project Apollo, Volume 5: The Software Effort
Authors	Madeline S. Johnson, Donald R. Giller
Year	1971
Report #	R-700
NTRS ID	19750067792 (citation only; PDF unavailable on current NTRS)
Source	MIT Digital Apollo archive
Legal	PD
File	`mit-role-apollo-vol5-software.pdf`
Size	13,686,273 bytes
Extraction	Complete

Source URLs:

Primary: web.mit.edu/digitalapollo/Documents/Chapter5/mitroleapollovi.pdf
Mirror:  ibiblio.org/apollo/hrst/archive/967.pdf

SHA-256:

87708dfee32e263a097f7cb1175e6acec27afbbffac3070d17c080eadba1f915

hall-1977/ — MIT’s Role in Apollo, Vol. 3: Computer Subsystem

Eldon Hall’s account of the AGC hardware. Volume 3 of the same R-700 series as Johnson & Giller.

Field	Value
Title	MIT’s Role in Project Apollo, Volume 3: Computer Subsystem
Author	Eldon C. Hall
Year	1977
Report #	R-700
NTRS ID	19720063753
Source	NASA Technical Reports Server
Legal	PD
File	`mit-role-apollo-vol3-computer.pdf`
Size	10,990,333 bytes
Extraction	Complete

Source URL:

ntrs.nasa.gov/api/citations/19720063753/downloads/19720063753.pdf

SHA-256:

b2eb5e3d17ade5566997bae14f5f96f654d2bd462a1379de830fed279957501f

nasa-1972-what-made-success/ — What Made Apollo a Success?

NASA’s own institutional assessment of Apollo success factors.

Field	Value
Title	What Made Apollo a Success?
Author	NASA Manned Spacecraft Center
Year	1972
Report #	NASA SP-287
NTRS ID	19720005243
Source	NASA Technical Reports Server
Legal	PD
File	`what-made-apollo-success-sp287.pdf`
Size	4,797,664 bytes
Extraction	Complete

Source URL:

ntrs.nasa.gov/api/citations/19720005243/downloads/19720005243.pdf

SHA-256:

03fc440b16cd62fa2f8b339e0d85a01ddf77109a23452a1e9c4603bab76a79b6

nasa-2009-gnc-hardware/ — Apollo GNC Hardware Overview

Field	Value
Title	Apollo Guidance, Navigation, and Control (GNC) Hardware Overview
Author	Michael Interbartolo
Year	2009
NTRS ID	20090016290
Source	NASA Technical Reports Server
Legal	PD
File	`apollo-gnc-hardware-overview.pdf`
Size	1,748,910 bytes
Extraction	Complete

Source URL:

ntrs.nasa.gov/api/citations/20090016290/downloads/20090016290.pdf

SHA-256:

9b759e8451aedfb0b60e5196d609197a92ef59812413a57235a2ababf2f7b0d7

nasa-2009-learning/ — Apollo: Learning From the Past

Field	Value
Title	Apollo: Learning From the Past, For the Future
Author	Michael R. Grabois
Year	2009
NTRS ID	20090029988
Source	NASA Technical Reports Server
Legal	PD
File	`apollo-learning-from-past.pdf`
Size	6,337,194 bytes
Extraction	Complete

Source URL:

ntrs.nasa.gov/api/citations/20090029988/downloads/20090029988.pdf

SHA-256:

e1eb75a7150938528899b58d5b1db5282d2cb95fa303641082008b7ad09f8921

nasa-1989-managing/ — Managing the Moon Program

Oral history workshop transcript from 1989, published 1999. Features Howard Tindall, George Mueller, Christopher Kraft, Robert Gilruth, Max Faget, and Owen Morris.

Field	Value
Title	Managing the Moon Program: Lessons Learned from Project Apollo
Author	NASA Headquarters
Year	1999 (based on 1989 oral histories)
Report #	NASA/NP-1999-6-250-HQ
NTRS ID	19990053708
Source	NASA Technical Reports Server
Legal	PD
File	`managing-moon-program.pdf`
Size	3,241,458 bytes
Extraction	Pending

Source URL:

ntrs.nasa.gov/api/citations/19990053708/downloads/19990053708.pdf

SHA-256:

7570bbb67255a3667d33f99ef9e939d8cad781aa0edd7ea8904228119d8a6f42

mccracken-1971-datamation/ — McCracken’s “The Ambivalence Lingers” (Datamation)

The January 1, 1971 issue of Datamation containing Daniel McCracken’s article on the state of the software profession. Context for the industry discourse Hamilton was contributing to.

Field	Value
Title	Datamation, January 1, 1971 (contains McCracken’s “The Ambivalence Lingers”)
Author	Daniel D. McCracken (article); various (magazine)
Year	1971
Source	bitsavers.org
Legal	Archived magazine scan. Original copyright Cahners Publishing.
File	`datamation-19710101.pdf`
Size	9,727,680 bytes
Extraction	Pending

Source URL:

bitsavers.org/pdf/datamation/Datamation_1971-01-01.pdf

SHA-256:

22a6104d3bd6a93f424acf2de85e3349fd644f71a8c3264a6a94c166ec24dc54

Tier 3 — Technical Analysis

averill-2022/ — Brief Analysis of the AGC

A modern analysis of the Apollo Guidance Computer’s hardware architecture, providing accessible context for understanding the constraints Hamilton’s software operated within.

Field	Value
Title	A Brief Analysis of the Apollo Guidance Computer
Author	Charles Averill (UT Dallas)
Year	2022
arXiv ID	2201.08230
Source	arXiv
Legal	OA
File	`agc-analysis.pdf`
Size	379,005 bytes
Extraction	Complete

Source URL:

arxiv.org/pdf/2201.08230

SHA-256:

16457f5ce39795c29e7747b81ed1d6230af2e0547c05c59346e9059a63b22882

mindell-2008/ — Digital Apollo

David Mindell’s definitive history of the human-machine relationship in Apollo spaceflight. Provides essential context for understanding the engineering culture and design philosophy that shaped Hamilton’s work.

Field	Value
Title	Digital Apollo: Human and Machine in Spaceflight
Author	David A. Mindell
Year	2008
Publisher	MIT Press
ISBN	978-0-262-13497-2
Source	MIT Press (research copy)
Legal	Copyrighted (MIT Press). Research copy.
File	`digital-apollo-mindell-2008.pdf`
Size	2,699,264 bytes
Extraction	Pending

SHA-256:

64959c2217339f88e9fc7024c387af01b75b348fd4b04e77fc6529392e6b210e

Verification

To verify any document in the archive, compute its SHA-256 hash and compare against the values on this page:

sha256sum source/hamilton-2019/mhh-software-part1.pdf
# Expected: 4649af55c2d8e303d845c192a9320405d864f9dda96b43ae815ac4dcd644410a

All hashes were computed at the time of download. If a hash does not match, the file has been modified since acquisition.

The canonical source for this provenance data is source/COLLECTION.md in the repository root. See the Compendium for the full bibliography and Archive Methodology for the acquisition and extraction process.