Pith Number

pith:HCO47R7U

pith:2024:HCO47R7UPEKA7E4VPZYM3SVWZW

not attested not anchored not stored refs pending

Moving boundaries: An appreciation of John Hopfield

William Bialek

arxiv:2412.18030 v1 · 2024-12-23 · physics.hist-ph · cond-mat.dis-nn · cs.LG · q-bio.NC · q-bio.OT

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

Add to your LaTeX paper

\usepackage{pith}
\pithnumber{HCO47R7UPEKA7E4VPZYM3SVWZW}

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.

Receipt and verification

First computed	2026-07-05T09:53:58.198179Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

389dcfc7f479140f93957e70cdcab6cd80a066978c593e8165c221ba9ab3553f

Aliases

arxiv: 2412.18030 · arxiv_version: 2412.18030v1 · doi: 10.48550/arxiv.2412.18030 · pith_short_12: HCO47R7UPEKA · pith_short_16: HCO47R7UPEKA7E4V · pith_short_8: HCO47R7U

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/HCO47R7UPEKA7E4VPZYM3SVWZW \
  | 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: 389dcfc7f479140f93957e70cdcab6cd80a066978c593e8165c221ba9ab3553f

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "8b32967d60f3fbb1a10250b7e0f9984542d06000ba98b5df619f26d565e0e4f7",
    "cross_cats_sorted": [
      "cond-mat.dis-nn",
      "cs.LG",
      "q-bio.NC",
      "q-bio.OT"
    ],
    "license": "http://creativecommons.org/licenses/by/4.0/",
    "primary_cat": "physics.hist-ph",
    "submitted_at": "2024-12-23T22:50:57Z",
    "title_canon_sha256": "96708dd7ac572e0446a86de3ce9602382d60f3f48c7f90e8d97a932bf20f538a"
  },
  "schema_version": "1.0",
  "source": {
    "id": "2412.18030",
    "kind": "arxiv",
    "version": 1
  }
}