Pith Number

pith:CIDFNOYZ

pith:2001:CIDFNOYZIOKBUWX2MUVMQCPLFB

not attested not anchored not stored refs pending

Short Calculus

Oscar Bolina

arxiv:math/0110263 v2 · 2001-10-24 · math.HO

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

Add to your LaTeX paper

\usepackage{pith}
\pithnumber{CIDFNOYZIOKBUWX2MUVMQCPLFB}

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	2026-05-18T04:04:17.508784Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

120656bb1943941a5afa652ac809eb28432c80b383d5c8ae2862012e9fdb299c

Aliases

arxiv: math/0110263 · arxiv_version: math/0110263v2 · doi: 10.48550/arxiv.math/0110263 · pith_short_12: CIDFNOYZIOKB · pith_short_16: CIDFNOYZIOKBUWX2 · pith_short_8: CIDFNOYZ

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/CIDFNOYZIOKBUWX2MUVMQCPLFB \
  | 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: 120656bb1943941a5afa652ac809eb28432c80b383d5c8ae2862012e9fdb299c

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "2754feaba39bfd59eb6313230cbc961101c346b1c6f1878bd0c9517a0faa719a",
    "cross_cats_sorted": [],
    "license": "",
    "primary_cat": "math.HO",
    "submitted_at": "2001-10-24T10:38:41Z",
    "title_canon_sha256": "d9e79e6a4c1b54bf11a6d502a46b127ff4ba89f33c95936215c3b8387cce5751"
  },
  "schema_version": "1.0",
  "source": {
    "id": "math/0110263",
    "kind": "arxiv",
    "version": 2
  }
}