Pith Number

pith:RIUQNWGQ

pith:2019:RIUQNWGQGVX4XPTU5PRKB6EDGX

not attested not anchored not stored refs pending

Ontology Focusing: Knowledge-enriched Databases on Demand

Filip Murlak, Magdalena Ortiz, Mantas \v{S}imkus, Tomasz Gogacz, V\'ictor Guti\'errez-Basulto, Yazm\'in A. Ib\'a\~nez-Garc\'ia

arxiv:1904.00195 v1 · 2019-03-30 · cs.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{RIUQNWGQGVX4XPTU5PRKB6EDGX}

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	2026-05-17T23:49:49.148283Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

8a2906d8d0356fcbbe74ebe2a0f88335f4bc0abb3e1c78158924741df9363e4c

Aliases

arxiv: 1904.00195 · arxiv_version: 1904.00195v1 · doi: 10.48550/arxiv.1904.00195 · pith_short_12: RIUQNWGQGVX4 · pith_short_16: RIUQNWGQGVX4XPTU · pith_short_8: RIUQNWGQ

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/RIUQNWGQGVX4XPTU5PRKB6EDGX \
  | 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: 8a2906d8d0356fcbbe74ebe2a0f88335f4bc0abb3e1c78158924741df9363e4c

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "6a6ffc846dc76e45efefb4208c7feba0f0c7df2a03ef95a3217b14e82b6bbe75",
    "cross_cats_sorted": [],
    "license": "http://arxiv.org/licenses/nonexclusive-distrib/1.0/",
    "primary_cat": "cs.LO",
    "submitted_at": "2019-03-30T10:39:57Z",
    "title_canon_sha256": "4bffd76d69e142ee054cce80173a10d7ab13cb854d32ba6cbd6f0fc6cee0f904"
  },
  "schema_version": "1.0",
  "source": {
    "id": "1904.00195",
    "kind": "arxiv",
    "version": 1
  }
}