Pith Number

pith:QYB5ZDZ6

pith:2012:QYB5ZDZ6ROODO5WVKL35T7KSAH

not attested not anchored not stored refs pending

When Index Term Probability Violates the Classical Probability Axioms Quantum Probability can be a Necessary Theory for Information Retrieval

Massimo Melucci

arxiv:1203.2569 v1 · 2012-03-12 · cs.IR

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

Add to your LaTeX paper

\usepackage{pith}
\pithnumber{QYB5ZDZ6ROODO5WVKL35T7KSAH}

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	2026-05-18T04:00:16.463837Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

8603dc8f3e8b9c3776d552f7d9fd5201eff3ed5bc13aee897c9c44274efd0fc8

Aliases

arxiv: 1203.2569 · arxiv_version: 1203.2569v1 · doi: 10.48550/arxiv.1203.2569 · pith_short_12: QYB5ZDZ6ROOD · pith_short_16: QYB5ZDZ6ROODO5WV · pith_short_8: QYB5ZDZ6

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/QYB5ZDZ6ROODO5WVKL35T7KSAH \
  | 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: 8603dc8f3e8b9c3776d552f7d9fd5201eff3ed5bc13aee897c9c44274efd0fc8

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "f7b4c1a4f5186ab3245d47598b7fc01688bf1112f3314d28e6a6d92a7ee3abf6",
    "cross_cats_sorted": [],
    "license": "http://arxiv.org/licenses/nonexclusive-distrib/1.0/",
    "primary_cat": "cs.IR",
    "submitted_at": "2012-03-12T17:57:40Z",
    "title_canon_sha256": "e29196ce73a4c435efe8c37100909c37905a3e0988f71fced79b52ac48b73e66"
  },
  "schema_version": "1.0",
  "source": {
    "id": "1203.2569",
    "kind": "arxiv",
    "version": 1
  }
}