Pith Number

pith:5QPDAR3N

pith:2012:5QPDAR3NGPLJJO7W4DWADXOY5G

not attested not anchored not stored refs pending

The logic of quantum mechanics - Take II

Bob Coecke

arxiv:1204.3458 v1 · 2012-04-16 · quant-ph · cs.CL · cs.LO · math.CT · math.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{5QPDAR3NGPLJJO7W4DWADXOY5G}

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	2026-05-18T03:15:57.790689Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

ec1e30476d33d694bbf6e0ec01ddd8e9836f7b2a5ef2c716c7970be262f7155b

Aliases

arxiv: 1204.3458 · arxiv_version: 1204.3458v1 · doi: 10.48550/arxiv.1204.3458 · pith_short_12: 5QPDAR3NGPLJ · pith_short_16: 5QPDAR3NGPLJJO7W · pith_short_8: 5QPDAR3N

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/5QPDAR3NGPLJJO7W4DWADXOY5G \
  | 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: ec1e30476d33d694bbf6e0ec01ddd8e9836f7b2a5ef2c716c7970be262f7155b

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "14fccd46abe17a20f50adcd0a25be229d7fbbef188a3dfd130cd17c6a70decff",
    "cross_cats_sorted": [
      "cs.CL",
      "cs.LO",
      "math.CT",
      "math.LO"
    ],
    "license": "http://arxiv.org/licenses/nonexclusive-distrib/1.0/",
    "primary_cat": "quant-ph",
    "submitted_at": "2012-04-16T12:22:13Z",
    "title_canon_sha256": "2488e5e8fc35a0795ac2e42716130ba24e8fd4062e5df44f5495ee5f08758f2f"
  },
  "schema_version": "1.0",
  "source": {
    "id": "1204.3458",
    "kind": "arxiv",
    "version": 1
  }
}