Pith Number

pith:4SHCHQBQ

pith:2015:4SHCHQBQOEQKAZM2PGMT7ZZ7DT

not attested not anchored not stored refs pending

How can heat maps of indexing vocabularies be utilized for information seeking purposes?

Karima Haddou ou Moussa, Peter Mutschke

arxiv:1502.01965 v1 · 2015-02-06 · 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{4SHCHQBQOEQKAZM2PGMT7ZZ7DT}

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	2026-05-18T02:27:50.345163Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

e48e23c0307120a0659a79993fe73f1cc56889007d35a2481088bfd0ea2254b4

Aliases

arxiv: 1502.01965 · arxiv_version: 1502.01965v1 · doi: 10.48550/arxiv.1502.01965 · pith_short_12: 4SHCHQBQOEQK · pith_short_16: 4SHCHQBQOEQKAZM2 · pith_short_8: 4SHCHQBQ

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/4SHCHQBQOEQKAZM2PGMT7ZZ7DT \
  | 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: e48e23c0307120a0659a79993fe73f1cc56889007d35a2481088bfd0ea2254b4

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "eb6d808d9fb95e256cd44f9a596ae612104960279d9bc3c73945dfaeeccf210a",
    "cross_cats_sorted": [],
    "license": "http://arxiv.org/licenses/nonexclusive-distrib/1.0/",
    "primary_cat": "cs.IR",
    "submitted_at": "2015-02-06T17:38:48Z",
    "title_canon_sha256": "24c1fe6a6f954144782508745108f6505c763addee4f76d688f73c51e7258305"
  },
  "schema_version": "1.0",
  "source": {
    "id": "1502.01965",
    "kind": "arxiv",
    "version": 1
  }
}