Pith Number

pith:ADRGVAD6

pith:2015:ADRGVAD6MCSZK2RHBO6667KAZK

not attested not anchored not stored refs pending

Open System Categorical Quantum Semantics in Natural Language Processing

Bob Coecke, Dimitri Kartsaklis, Mehrnoosh Sadrzadeh, Robin Piedeleu

arxiv:1502.00831 v2 · 2015-02-03 · cs.CL · cs.LO · math.CT · math.QA

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

Add to your LaTeX paper

\usepackage{pith}
\pithnumber{ADRGVAD6MCSZK2RHBO6667KAZK}

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	2026-05-18T02:27:58.201311Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

00e26a807e60a5956a270bbdef7d40ca989f14cb8cc9112061b6cd2df9f2cf12

Aliases

arxiv: 1502.00831 · arxiv_version: 1502.00831v2 · doi: 10.48550/arxiv.1502.00831 · pith_short_12: ADRGVAD6MCSZ · pith_short_16: ADRGVAD6MCSZK2RH · pith_short_8: ADRGVAD6

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/ADRGVAD6MCSZK2RHBO6667KAZK \
  | 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: 00e26a807e60a5956a270bbdef7d40ca989f14cb8cc9112061b6cd2df9f2cf12

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "559dfe798423322b2144cb61e028bdcfe31ab6f24660e8b5a9d8d81378306a60",
    "cross_cats_sorted": [
      "cs.LO",
      "math.CT",
      "math.QA"
    ],
    "license": "http://arxiv.org/licenses/nonexclusive-distrib/1.0/",
    "primary_cat": "cs.CL",
    "submitted_at": "2015-02-03T12:16:19Z",
    "title_canon_sha256": "c2897b31317674ff42de4413a29a510d7d6e9382aee5a12f550d47345b9f6e5c"
  },
  "schema_version": "1.0",
  "source": {
    "id": "1502.00831",
    "kind": "arxiv",
    "version": 2
  }
}