---
id: "20260813-0225-verify-lecuns-account-of"
title: "Verify LeCun's account of DjVu's free-books purpose and the free NIPS 0–13 archive, and check whether nips.djvu.org has rotted"
type: "capture"
status: "promoted"
origin: "batch"
promoted_to: ["30-notes/claim-djvu-created-to-freely-distribute-scanned-documents.md (updated in place: verbatim quote added, source_date corrected, [unverified-quote] flag resolved, status seedling → budding)","30-notes/claim-nips-djvu-org-domain-no-longer-resolves-2026.md","30-notes/claim-neurips-absorbed-free-nips-proceedings-into-papers-nips-cc.md","40-entities/entity-yann-lecun.md (updated: appended dated line)","40-entities/entity-leon-bottou.md (new hub)"]
not_promoted: ["\"Answer to the core question\" synthesis section — not a separate atomic claim; its content is fully carried by the three promoted/updated notes above plus the question closure below, so a fourth note would only restate them.","Reply-thread detail on NIPS Volume 0's AIP→Springer rights history — folded as supporting context into the updated claim-djvu-created-to-freely-distribute-scanned-documents.md rather than a standalone note; the reply itself was truncated (\"Show more\") and not independently confirmed, so it stays as attributed context, not a load-bearing claim.","DjVu's IW44/JB2 technical mechanism (further lead) — already recorded as an explicit unverified-against-primary gap in claim-djvu-1998-paper-coauthored-by-lecun-and-bengio; this capture adds no new information on it, so no new note or question.","whois lookup on nips.djvu.org (further lead) — would sharpen \"rotted\" to \"abandoned\" but isn't load-bearing for the DNS-failure finding already recorded in claim-nips-djvu-org-domain-no-longer-resolves-2026.md; left as an unclaimed lead, not routed to 50-questions/ per the load-bearing-only intake rule.","Broader historiographic claim that the NIPS/DjVu episode and JMLR's founding shaped ML's open-access preprint culture (further lead) — asserted by LeCun but not independently corroborated this session, and not load-bearing for any claim kept above; too speculative/broad for 50-questions/, logged only as a possible future thread.","Entity candidates: Morgan Kaufmann Publishers, MIT Press, American Institute of Physics, Springer — each a single-cluster, single-mention org in this story; none clears the 2026-08-10 stricter org-hub bar (load-bearing across more than one independent vault cluster AND acting, not merely publishing). Left as prose mentions, no entity pages.","Entity candidate: Internet Archive / Archive Team — evaluated against the org bar and NOT promoted this pass (sampled 2 of ~22 mentions; only the DjVu cluster shows the Archive acting rather than merely hosting). Logged as an [entity] flag in 00-meta/seek-flags.md for a fuller sweep rather than decided outright."]
writer_model: "claude-sonnet-5"
date_created: "2026-08-13T00:00:00.000Z"
provenance: "batch run, 2026-08-13, researching [[question-verify-lecun-djvu-free-nips-archive]]"
derived_from: []
tags: ["djvu","lecun","nips","free-knowledge","link-rot","verification","history-of-ml","internet-archive"]
sources: [{"source_url":"https://x.com/ylecun/status/1742269871168111018","source_title":"Yann LeCun on X: \"Let me tell a story about free books...\"","source_author":"Yann LeCun (@ylecun, personal account)","source_date":"2024-01-02 (main post, 7:41 PM); reply thread continues 2024-01-03","source_venue":"X (formerly Twitter)","source_tier":1,"source_sha":"8876e6bfb80094148fe78d12f107624f5d40a8c303556489ed5ea113e4901524","source_quote":"Let me tell a story about free books. In the mid 1990s, I started a project called DjVu at AT&T Labs. The purpose was to devise a new image compression format so that printed documents could be scanned at high resolution and distributed efficiently over the newly expanding Internet. [...] As a useful demonstration of the technology, I decided to scan and distribute the complete collection of proceedings of the Neural Information Processing conference (NIPS). I asked the publishers, Morgan Kaufman and MIT Press, for permission to do that. They agreed because they weren't making any revenue from past proceedings. We scanned the 13 volumes, OCRed and indexed all of the material, and put it up on a free website in 2000: nips.djvu.org This open-access repository turned out to be *extremely* useful to the machine learning research community. [...] Eventually, the NIPS conference stopped making printed proceedings and started hosting all the books on their website ( nips.cc ), including our scans."},{"source_url":"http://web.archive.org/cdx/search/cdx?url=nips.djvu.org*&output=json&limit=20","source_title":"Wayback Machine CDX index for nips.djvu.org","source_author":"Internet Archive (Wayback Machine, CDX API)","source_date":"queried 2026-08-13; snapshots dated 2024-04-15 through 2024-11-19","source_venue":"web.archive.org CDX Server API","source_tier":1,"source_sha":"a974749294bbf3f727bb4509017170136bd0abc24fb63f8fe43d26c09051a1c6","source_quote":"[\"org,djvu,nips)/nips01-toc.html\",\"20241119072959\",\"http://nips.djvu.org/nips01-toc.html\",\"text/html\",\"200\",...] / [\"org,djvu,nips)/nipsxx-toc.html\",\"20240916142901\",\"http://nips.djvu.org/nipsxx-toc.html\",\"text/html\",\"200\",...]"},{"source_url":"http://web.archive.org/web/20240817135443/http://nips.djvu.org/nips-toc.html","source_title":"NIPS Volume 13: Table of Contents","source_author":"nips.djvu.org (site content, archived by Internet Archive / Archive Team)","source_date":"site content undated; this crawl captured 2024-08-17","source_venue":"nips.djvu.org, via Wayback Machine","source_tier":2,"source_sha":"7617e5ceabe8e8beb90d8179f2aad4724bae7fc0a0a0981533e188e1a639f8e4","source_quote":"NIPS Table of Contents. Select Volume: Volume 0 NIPS 1987 / Volume 1 NIPS 1988 / Volume 2 NIPS 1989 / Volume 3 NIPS 1990 / Volume 4 NIPS 1991 / Volume 5 NIPS 1992 / Volume 6 NIPS 1993 / Volume 7 NIPS 1994 / Volume 8 NIPS 1995 / Volume 9 NIPS 1996 / Volume 10 NIPS 1997 / Volume 11 NIPS 1998 / Volume 12 NIPS 1999 / Volume 13 NIPS 2000 / All Volumes (495KB) — NIPS'2000 Volume 13 : Table of Contents. Todd Leen, Tom Dietterich, Volker Tresp (eds), MIT Press (2001)"},{"source_url":"https://papers.nips.cc/","source_title":"List of Proceedings — NeurIPS Proceedings","source_author":"Neural Information Processing Systems Foundation","source_date":"fetched 2026-08-13","source_venue":"papers.nips.cc (official NeurIPS proceedings site)","source_tier":1,"source_sha":"cdc02e01d10dd2b977f2ac056ad29309e9853db0908e0d3db4373254bbae3469","source_quote":"Advances in Neural Information Processing Systems 1 NIPS 1988 / Neural Information Processing Systems 0 NIPS 1987"}]
seek_code_commit: "17d9798"
---


This capture answers the routed question at
[[question-verify-lecun-djvu-free-nips-archive]], which flagged
[[claim-djvu-created-to-freely-distribute-scanned-documents]] `[unverified-quote]`
because its only source — a LeCun X/Twitter post — had returned HTTP 402 at
capture time and reached the vault only as a search-engine summary, with no
verbatim phrasing preserved. This session re-fetched the post directly with
`archive_page` (it resolved cleanly this time) and cross-checked the archive's
own historical content and current reachability against the Wayback Machine and
the official NeurIPS proceedings site.

## Claim: LeCun's own account (in his own words, on his own account) states DjVu's purpose was cheap high-resolution distribution of scanned documents over the "newly expanding" internet, demonstrated by freely releasing the NIPS proceedings

**Claim type**: historical / definitional (what LeCun says his own project was for). **Source tier required**: Tier 3–4 acceptable for an uncontested historical claim, but since this is the founder's own testimony about his own project, Tier 1 is available and used.

In a post on X dated 2 January 2024, Yann LeCun states directly: "In the mid 1990s, I started a project called DjVu at AT&T Labs. The purpose was to devise a new image compression format so that printed documents could be scanned at high resolution and distributed efficiently over the newly expanding Internet." He frames this explicitly as a story "about free books." The account is now fetched and read directly (not relayed via search summary), and the verbatim quote is preserved above with `source_sha` — this **resolves the `[unverified-quote]` flag** on [[claim-djvu-created-to-freely-distribute-scanned-documents]] for this portion of the claim.

One correction surfaces against the existing flagged note: it records `source_date: 2023-01-03`. The post itself is timestamped "7:41 PM · Jan 2, 2024" (with the reply thread continuing into Jan 3, 2024) — a full year off. The date should read **2024-01-02**, not 2023-01-03.

*Provenance*: Yann LeCun (@ylecun), post on X, 2 January 2024. https://x.com/ylecun/status/1742269871168111018

## Claim: LeCun states the NIPS proceedings were scanned with publisher permission and posted free at nips.djvu.org starting in 2000, as a demonstration of DjVu

**Claim type**: historical, with an embedded quantitative element ("13 volumes"). **Source tier required**: Tier 1–2 for the number.

LeCun's own account: "As a useful demonstration of the technology, I decided to scan and distribute the complete collection of proceedings of the Neural Information Processing conference (NIPS). I asked the publishers, Morgan Kaufman and MIT Press, for permission to do that. They agreed because they weren't making any revenue from past proceedings. We scanned the 13 volumes, OCRed and indexed all of the material, and put it up on a free website in 2000: nips.djvu.org." A reply in the same thread adds that Volume 0 (NIPS 1987) had been published by the nonprofit American Institute of Physics, whose rights had since passed to Springer, and that LeCun's team separately sought Springer's permission for that volume.

This is a Tier 1 source (the founder's own account) for a quantitative figure ("13 volumes"), clearing the sourcing floor. There is a minor, unresolved discrepancy worth flagging rather than silently resolving: LeCun's tweet does not itself state which 13 volumes, but a 2024 crawl of the live site's own table-of-contents page (see next claim) lists 14 numbered volumes — 0 through 13, spanning NIPS 1987 through NIPS 2000 — not 13. It is plausible the original 2000 launch covered 13 volumes (0–12, i.e. 1987–1999) and Volume 13 (NIPS 2000, published by MIT Press in 2001) was added afterward, but this session found no source that states the count explicitly at both points in time, so the discrepancy is recorded, not resolved.

*Provenance*: Yann LeCun (@ylecun), post + reply thread on X, 2–3 January 2024. https://x.com/ylecun/status/1742269871168111018

## Claim: nips.djvu.org no longer resolves as a live website (checked 2026-08-13), though the Wayback Machine preserved its content through at least November 2024

**Claim type**: technical-mechanism / historical (a reachability claim about a specific domain, checked directly). **Source tier required**: Tier 1–2 — met by direct, repeated fetch attempts against the live domain.

Two independent fetch tools were used to test `nips.djvu.org` directly on 2026-08-13: `mcp__seek__archive_page` failed with `urlopen error [Errno 8] nodename nor servname provided, or not known` (a DNS resolution failure) on three separate attempts (root domain over both HTTP and HTTPS, and a specific `/nips-toc.html` path), and `WebFetch` independently failed with `getaddrinfo ENOTFOUND nips.djvu.org` on the same path. Both are DNS-resolution failures, not server errors — the domain name itself does not currently resolve, which is the strongest available signal (short of a manual `whois` lookup, not performed) that the domain has lapsed or been abandoned outright, not merely that its server is down.

This is not total loss: the Internet Archive's CDX index shows Archive Team crawled and preserved pages from `nips.djvu.org` — including per-volume tables of contents — as recently as 19 November 2024. A Wayback Machine copy of `nips-toc.html` (2024-08-17 capture) confirms the site's own content: a volume selector listing Volume 0 (NIPS 1987) through Volume 13 (NIPS 2000), each linking to a full table of contents. The demo Yann LeCun describes did exist and was crawled by the Archive as recently as late 2024; what has rotted is the live domain itself, not (yet) all record of what it once contained.

*Provenance*: direct fetch attempts against https://nips.djvu.org/ and http://nips.djvu.org/nips-toc.html, 2026-08-13 (this session); Wayback Machine CDX index at http://web.archive.org/cdx/search/cdx?url=nips.djvu.org*; archived snapshot at http://web.archive.org/web/20240817135443/http://nips.djvu.org/nips-toc.html

## Claim: The content of the free NIPS archive was not simply lost when the domain died — it was substantially absorbed into the official NeurIPS proceedings site, which now hosts the same early volumes (0 onward) as its own permanent record

**Claim type**: historical, corroborating LeCun's own account of the archive's eventual fate. **Source tier required**: Tier 3–4 acceptable (uncontested institutional fact); Tier 1 available and used.

LeCun's account states: "Eventually, the NIPS conference stopped making printed proceedings and started hosting all the books on their website (nips.cc), including our scans." This is independently corroborated: the official NeurIPS proceedings index at papers.nips.cc, fetched directly in this session, lists a complete run from "Neural Information Processing Systems 0 NIPS 1987" and "Advances in Neural Information Processing Systems 1 NIPS 1988" forward through NeurIPS 2025 — meaning the same early-volume content the DjVu demo pioneered making freely accessible is now permanently hosted at the conference's own institutional domain, independent of nips.djvu.org's survival. The free-access outcome LeCun describes as the point of the demo persisted structurally even though the original demonstration site did not.

*Provenance*: papers.nips.cc, "List of Proceedings," fetched 2026-08-13. https://papers.nips.cc/

## Answer to the core question

**Confirmed, with one correction and one open discrepancy.** LeCun's account of DjVu's free-books purpose and the free NIPS 0–13 (effectively 0–12 or 0–13, see discrepancy above) archive is now verified against his own words, directly fetched and hashed — the `[unverified-quote]` flag on [[claim-djvu-created-to-freely-distribute-scanned-documents]] should lift. The `source_date` on that note (2023-01-03) is wrong and should be corrected to 2024-01-02. **nips.djvu.org has rotted**: it fails DNS resolution as of this session (2026-08-13), confirmed via two independent tools — the sharper finding the original question anticipated. But it has rotted into the Wayback Machine's care (crawled as recently as November 2024) and, more importantly, its actual mission — free access to the early NIPS proceedings — now lives on at the conference's own official site, papers.nips.cc, independent of the original demo domain's survival.

> [!note] Seek's commentary:
> This closes the loop the vault's own note predicted: the free-books story about DjVu is itself a demonstration of the vault's recurring theme that "free access to text demands continuous maintenance, not just a good format." nips.djvu.org's death by DNS lapse is that theme playing out exactly, but the softer landing — NeurIPS absorbing the scans into its own permanent proceedings site — is the more interesting half of the finding. The infrastructure died; the mission it was demonstrating didn't. That's a better ending than "the free books rotted," and it's worth the promoted note saying so explicitly rather than only recording the rot. — Seek

## Further leads

- LeCun's reply-thread side story about NIPS Volume 0 (1987) — originally published by the nonprofit American Institute of Physics, rights later sold to Springer, requiring a separate permission request — was only partially readable (the reply was truncated with "Show more" in the archived capture); worth a direct fetch of the reply tweet itself for the full text.
- The DjVu format's technical mechanism (IW44 wavelet codec for continuous-tone layers, JB2 for the bitonal text mask) is already flagged unverified-against-primary in [[claim-djvu-1998-paper-coauthored-by-lecun-and-bengio]]; the 1998 primary paper (available at yann.lecun.com/exdb/publis/pdf/lecun-98c.pdf) was not fetched this session and remains the way to close that gap.
- Whether a `whois` lookup on nips.djvu.org would show the domain registration itself lapsed (vs. a DNS/hosting misconfiguration on an otherwise-live registration) was not checked this session — would sharpen "rotted" from "unreachable" to "abandoned."
- LeCun's claim that the ML community's "culture of fast posting of preprints and open-access publications" traces partly to this NIPS/DjVu episode and to JMLR's founding as an early open-access journal is a broader historiographic claim, asserted but not independently corroborated this session.

## Entity candidates

- Morgan Kaufmann Publishers — concept/organization — one of the two publishers LeCun says granted permission to scan and freely release the NIPS proceedings; the rights-holder whose forbearance the whole "free books" demo depended on.
- MIT Press — concept/organization — the other publisher granting permission per LeCun's account, and (per the archived table of contents) publisher of NIPS Volume 13 (2000) directly; also the current publisher of record for later NeurIPS proceedings.
- American Institute of Physics (AIP) — concept/organization — original nonprofit publisher of NIPS Volume 0 (1987), whose rights had since passed to Springer per LeCun's reply thread; the earliest rights-holder in the chain the free-archive project had to negotiate around.
- Springer — concept/organization — for-profit successor rights-holder to AIP for NIPS Volume 0, separately contacted per LeCun's account; a useful contrast case (for-profit vs. nonprofit permission-granting) within the same story.
- Léon Bottou — person — DjVu co-author (already the connective figure in [[claim-djvu-1998-paper-coauthored-by-lecun-and-bengio]]) not yet an entity page in this vault; worth flagging given how often he recurs across the DjVu and *Perceptrons* clusters.
- Internet Archive / Archive Team — concept/organization — the entity that crawled and preserved nips.djvu.org's content after the fact; already connected via [[claim-internet-archive-2016-stopped-generating-djvu]], now also relevant as the archive-of-the-archive for this specific domain's rot.