Pith Number

pith:YQBGVX2A

pith:2000:YQBGVX2AU7JERJCU7VIL43NNMV

not attested not anchored not stored refs pending

Towards a query language for annotation graphs

Peter Buneman, Steven Bird, Wang-Chiew Tan

arxiv:cs/0007023 v1 · 2000-07-13 · cs.CL · cs.DB

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

Add to your LaTeX paper

\usepackage{pith}
\pithnumber{YQBGVX2AU7JERJCU7VIL43NNMV}

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	2026-07-04T14:24:03.568457Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

c4026adf40a7d248a454fd50be6dad657bf674b1b53b279496f16fa49f3a451c

Aliases

arxiv: cs/0007023 · arxiv_version: cs/0007023v1 · doi: 10.48550/arxiv.cs/0007023 · pith_short_12: YQBGVX2AU7JE · pith_short_16: YQBGVX2AU7JERJCU · pith_short_8: YQBGVX2A

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/YQBGVX2AU7JERJCU7VIL43NNMV \
  | 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: c4026adf40a7d248a454fd50be6dad657bf674b1b53b279496f16fa49f3a451c

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "54f19eff1714c442ced8d1760e8a9f1fdd12b4210db946b15723ab9dc4278409",
    "cross_cats_sorted": [
      "cs.DB"
    ],
    "license": "",
    "primary_cat": "cs.CL",
    "submitted_at": "2000-07-13T18:40:15Z",
    "title_canon_sha256": "027138a9864ef343c712cc069416140475348051d7271c014854da310dd65780"
  },
  "schema_version": "1.0",
  "source": {
    "id": "cs/0007023",
    "kind": "arxiv",
    "version": 1
  }
}