Pith Number

pith:SB2IHDOK

pith:2006:SB2IHDOKATR2SML22VVONG3ZIJ

not attested not anchored not stored refs pending

Searching for memories, Sudoku, implicit check-bits, and the iterative use of not-always-correct rapid neural computation

J. J. Hopfield

arxiv:q-bio/0609006 v2 · 2006-09-05 · q-bio.NC

Open paper page JSON Open Graph Bundle Merged state Verified badge What is a Pith Number?

Add to your LaTeX paper

\usepackage{pith}
\pithnumber{SB2IHDOKATR2SML22VVONG3ZIJ}

Prints a linked badge after your title and injects PDF metadata. Compiles on arXiv. Learn more · Embed verified badge

Record completeness

1 Bitcoin timestamp

2 Internet Archive

3 Author claim open · sign in to claim

4 Citations open

5 Replications open

✓ Portable graph bundle live · download bundle · merged state

The bundle contains the canonical record plus signed events. A mirror can host it anywhere and recompute the same current state with the deterministic merge algorithm.

Cited by

1 paper in Pith

Solving Sudoku using oscillatory neural networks

Receipt and verification

First computed	2026-07-04T14:56:44.437004Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

9074838dca04e3a9317ad56ae69b7942438d73bf1d5c43b9d83e7ece686eee2b

Aliases

arxiv: q-bio/0609006 · arxiv_version: q-bio/0609006v2 · doi: 10.48550/arxiv.q-bio/0609006 · pith_short_12: SB2IHDOKATR2 · pith_short_16: SB2IHDOKATR2SML2 · pith_short_8: SB2IHDOK

Agent API

Resolver JSON Graph JSON Events JSON Schema Signing key

Verify this Pith Number yourself

curl -sH 'Accept: application/ld+json' https://pith.science/pith/SB2IHDOKATR2SML22VVONG3ZIJ \
  | jq -c '.canonical_record' \
  | python3 -c "import sys,json,hashlib; b=json.dumps(json.loads(sys.stdin.read()), sort_keys=True, separators=(',',':'), ensure_ascii=False).encode(); print(hashlib.sha256(b).hexdigest())"
# expect: 9074838dca04e3a9317ad56ae69b7942438d73bf1d5c43b9d83e7ece686eee2b

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "8fa5b5dca16fb013a09d64feb76d556998e67af1a1fedd3fa15147a74d342720",
    "cross_cats_sorted": [],
    "license": "",
    "primary_cat": "q-bio.NC",
    "submitted_at": "2006-09-05T17:53:26Z",
    "title_canon_sha256": "a739a69f6e56d4d4e3c136bc9c9f947d7060ccb63e3334db5bded8f742a4f766"
  },
  "schema_version": "1.0",
  "source": {
    "id": "q-bio/0609006",
    "kind": "arxiv",
    "version": 2
  }
}