Pith Number

pith:VVA2M7NJ

pith:2019:VVA2M7NJMF7QYRMH2TPSSK2SHB

not attested not anchored not stored refs pending

Structured Cospans

John C. Baez, Kenny Courser

arxiv:1911.04630 v3 · 2019-11-12 · 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{VVA2M7NJMF7QYRMH2TPSSK2SHB}

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

Rewriting Structured Cospans

Receipt and verification

First computed	2026-07-05T01:50:16.218204Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

ad41a67da9617f0c4587d4df292b523874672cb27425023239378aab9e12976a

Aliases

arxiv: 1911.04630 · arxiv_version: 1911.04630v3 · doi: 10.48550/arxiv.1911.04630 · pith_short_12: VVA2M7NJMF7Q · pith_short_16: VVA2M7NJMF7QYRMH · pith_short_8: VVA2M7NJ

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/VVA2M7NJMF7QYRMH2TPSSK2SHB \
  | 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: ad41a67da9617f0c4587d4df292b523874672cb27425023239378aab9e12976a

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "394ea90b751320372d54a76ee315c6a371fad6bf9076019f3f94e7cb0bbb0b94",
    "cross_cats_sorted": [],
    "license": "http://arxiv.org/licenses/nonexclusive-distrib/1.0/",
    "primary_cat": "math.CT",
    "submitted_at": "2019-11-12T01:29:09Z",
    "title_canon_sha256": "093996d4191d5ab9d06d72f1ff9054df26183b190c31336008adae887564933d"
  },
  "schema_version": "1.0",
  "source": {
    "id": "1911.04630",
    "kind": "arxiv",
    "version": 3
  }
}