Pith Number

pith:QGS5ZCQO

pith:2012:QGS5ZCQOTAC6TRRZL3HZOS3GJ6

not attested not anchored not stored refs pending

Pattern graph rewrite systems

Aleks Kissinger (University of Oxford), Alex Merry (University of Oxford), Matvey Soloviev (University of Cambridge)

arxiv:1204.6695 v3 · 2012-04-30 · math.CT · cs.LO

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

Add to your LaTeX paper

\usepackage{pith}
\pithnumber{QGS5ZCQOTAC6TRRZL3HZOS3GJ6}

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	2026-05-18T02:55:11.587509Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

81a5dc8a0e9805e9c6395ecf974b664f8a3e299cfa0a90efa0d79211b1a0e430

Aliases

arxiv: 1204.6695 · arxiv_version: 1204.6695v3 · doi: 10.48550/arxiv.1204.6695 · pith_short_12: QGS5ZCQOTAC6 · pith_short_16: QGS5ZCQOTAC6TRRZ · pith_short_8: QGS5ZCQO

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/QGS5ZCQOTAC6TRRZL3HZOS3GJ6 \
  | 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: 81a5dc8a0e9805e9c6395ecf974b664f8a3e299cfa0a90efa0d79211b1a0e430

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "cf7bd3012ede32900711260ad1793cf431bf3367489bd38f87559c9f23052d2c",
    "cross_cats_sorted": [
      "cs.LO"
    ],
    "license": "http://arxiv.org/licenses/nonexclusive-distrib/1.0/",
    "primary_cat": "math.CT",
    "submitted_at": "2012-04-30T16:38:20Z",
    "title_canon_sha256": "befdfcbab6706fab4846c020031a0a7e327b4ad1612909b67b9fdaf2c0146f3c"
  },
  "schema_version": "1.0",
  "source": {
    "id": "1204.6695",
    "kind": "arxiv",
    "version": 3
  }
}