Pith Number

pith:N4FFNUT7

pith:2014:N4FFNUT7YASKKXWQII3E66I57B

not attested not anchored not stored refs pending

Polygraphs of finite derivation type

Philippe Malbos, Yves Guiraud

arxiv:1402.2587 v2 · 2014-02-11 · math.CT

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

Add to your LaTeX paper

\usepackage{pith}
\pithnumber{N4FFNUT7YASKKXWQII3E66I57B}

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	2026-05-18T00:23:59.372787Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

6f0a56d27fc024a55ed042364f791df847c28b51d49213d37629e616535b4b92

Aliases

arxiv: 1402.2587 · arxiv_version: 1402.2587v2 · doi: 10.48550/arxiv.1402.2587 · pith_short_12: N4FFNUT7YASK · pith_short_16: N4FFNUT7YASKKXWQ · pith_short_8: N4FFNUT7

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/N4FFNUT7YASKKXWQII3E66I57B \
  | 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: 6f0a56d27fc024a55ed042364f791df847c28b51d49213d37629e616535b4b92

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "c1ddfd700a24e9b7d4ea82221078a64f8ea9e56565d8b068581fe6eb279de139",
    "cross_cats_sorted": [],
    "license": "http://arxiv.org/licenses/nonexclusive-distrib/1.0/",
    "primary_cat": "math.CT",
    "submitted_at": "2014-02-11T18:12:46Z",
    "title_canon_sha256": "d854f298b89c75e99e4926da087be8b4feb054586b55db699c83d99e3a9dc557"
  },
  "schema_version": "1.0",
  "source": {
    "id": "1402.2587",
    "kind": "arxiv",
    "version": 2
  }
}