Pith Number

pith:SFA2JCKB

pith:2012:SFA2JCKBXF6QFCXIV43GWFMFSN

not attested not anchored not stored refs pending

A Simple Algorithm for Computing BOCP

Jack Wang

arxiv:1211.0729 v8 · 2012-11-04 · cs.DS · cs.CG · cs.GR

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

Add to your LaTeX paper

\usepackage{pith}
\pithnumber{SFA2JCKBXF6QFCXIV43GWFMFSN}

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	2026-05-18T00:11:51.271996Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

9141a48941b97d028ae8af366b158593426b7e9434a8358dfa1a50c34caaac62

Aliases

arxiv: 1211.0729 · arxiv_version: 1211.0729v8 · doi: 10.48550/arxiv.1211.0729 · pith_short_12: SFA2JCKBXF6Q · pith_short_16: SFA2JCKBXF6QFCXI · pith_short_8: SFA2JCKB

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/SFA2JCKBXF6QFCXIV43GWFMFSN \
  | 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: 9141a48941b97d028ae8af366b158593426b7e9434a8358dfa1a50c34caaac62

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "0d24a46726fcd044a513b9c9933dd844070fd7d68393feefd866d6c8f154b77d",
    "cross_cats_sorted": [
      "cs.CG",
      "cs.GR"
    ],
    "license": "http://arxiv.org/licenses/nonexclusive-distrib/1.0/",
    "primary_cat": "cs.DS",
    "submitted_at": "2012-11-04T22:38:11Z",
    "title_canon_sha256": "38d7f5aa607d45a9bb861a8a4716c65256c8790ab587a198fe6bfdebaf493fa9"
  },
  "schema_version": "1.0",
  "source": {
    "id": "1211.0729",
    "kind": "arxiv",
    "version": 8
  }
}