Pith Number

pith:A4YRRGIH

pith:2014:A4YRRGIHIVISTUTJOI556WXDGP

not attested not anchored not stored refs pending

Categories of Quantum and Classical Channels (extended abstract)

Aleks Kissinger (University of Oxford, Bob Coecke (University of Oxford, Chris Heunen (University of Oxford, Department of Computer Science)

arxiv:1408.0049 v1 · 2014-08-01 · cs.LO · math.CT

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

Add to your LaTeX paper

\usepackage{pith}
\pithnumber{A4YRRGIHIVISTUTJOI556WXDGP}

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	2026-05-18T02:45:39.800135Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

0731189907455129d269723bdf5ae333ffef5d52c467027748279875551a9cdd

Aliases

arxiv: 1408.0049 · arxiv_version: 1408.0049v1 · doi: 10.48550/arxiv.1408.0049 · pith_short_12: A4YRRGIHIVIS · pith_short_16: A4YRRGIHIVISTUTJ · pith_short_8: A4YRRGIH

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/A4YRRGIHIVISTUTJOI556WXDGP \
  | 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: 0731189907455129d269723bdf5ae333ffef5d52c467027748279875551a9cdd

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "9f84222e528024232f99b9ef83ab44d72caeb6a618d8479767fc20434937a477",
    "cross_cats_sorted": [
      "math.CT"
    ],
    "license": "http://arxiv.org/licenses/nonexclusive-distrib/1.0/",
    "primary_cat": "cs.LO",
    "submitted_at": "2014-08-01T00:24:41Z",
    "title_canon_sha256": "d4a0fbb10d788b45c64e10d5de3dcf40b90c2047645a2145cef04cfdf51f33cf"
  },
  "schema_version": "1.0",
  "source": {
    "id": "1408.0049",
    "kind": "arxiv",
    "version": 1
  }
}