Pith Number

pith:25BVWSYI

pith:2009:25BVWSYIBTCQBCSAQVHY6DUUTJ

not attested not anchored not stored refs pending

Quantum Picturalism

Bob Coecke

arxiv:0908.1787 v1 · 2009-08-13 · quant-ph · math-ph · math.CT · math.MP · math.QA

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

Add to your LaTeX paper

\usepackage{pith}
\pithnumber{25BVWSYIBTCQBCSAQVHY6DUUTJ}

Prints a linked badge after your title and injects PDF metadata. Compiles on arXiv. Learn more

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

String Diagrams for Quantum Foundations, Computing and Natural Language Processing

Receipt and verification

First computed	2026-05-18T02:12:34.798574Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

d7435b4b080cc5008a40854f8f0e949a5651498e38d5fbb7db1a1100ad4fb9a2

Aliases

arxiv: 0908.1787 · arxiv_version: 0908.1787v1 · doi: 10.48550/arxiv.0908.1787 · pith_short_12: 25BVWSYIBTCQ · pith_short_16: 25BVWSYIBTCQBCSA · pith_short_8: 25BVWSYI

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/25BVWSYIBTCQBCSAQVHY6DUUTJ \
  | 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: d7435b4b080cc5008a40854f8f0e949a5651498e38d5fbb7db1a1100ad4fb9a2

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "3ad143f05191bdec24a8ae57736971661f16f1beb8938af0034e2b57b5c163cc",
    "cross_cats_sorted": [
      "math-ph",
      "math.CT",
      "math.MP",
      "math.QA"
    ],
    "license": "http://arxiv.org/licenses/nonexclusive-distrib/1.0/",
    "primary_cat": "quant-ph",
    "submitted_at": "2009-08-13T18:17:18Z",
    "title_canon_sha256": "f1ec356447933aacee85e0f7ad5911bfc3f2130e1cc5596bf2eb02e0a9f84120"
  },
  "schema_version": "1.0",
  "source": {
    "id": "0908.1787",
    "kind": "arxiv",
    "version": 1
  }
}