Pith Number

pith:EPAC33PG

pith:2025:EPAC33PGR7EW2IXEHZRPQIWEZD

not attested not anchored not stored refs pending

Knowledge engineering for open science: Building and deploying knowledge bases for metadata standards

Josef Hardi, Marcos Martinez-Romero, Mark A. Musen, Martin J. O'Connor

arxiv:2507.22391 v1 · 2025-07-30 · cs.DL

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

Add to your LaTeX paper

\usepackage{pith}
\pithnumber{EPAC33PGR7EW2IXEHZRPQIWEZD}

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	2026-07-05T11:45:41.165568Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

23c02dede68fc96d22e43e62f822c4c8de857aa51fbb9d888747714bf1d49907

Aliases

arxiv: 2507.22391 · arxiv_version: 2507.22391v1 · doi: 10.48550/arxiv.2507.22391 · pith_short_12: EPAC33PGR7EW · pith_short_16: EPAC33PGR7EW2IXE · pith_short_8: EPAC33PG

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/EPAC33PGR7EW2IXEHZRPQIWEZD \
  | 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: 23c02dede68fc96d22e43e62f822c4c8de857aa51fbb9d888747714bf1d49907

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "162328fd60bd8e0780afd332a09553b9668afb86cfbc4b2ed96f5050abf9fb67",
    "cross_cats_sorted": [],
    "license": "http://creativecommons.org/licenses/by/4.0/",
    "primary_cat": "cs.DL",
    "submitted_at": "2025-07-30T05:26:49Z",
    "title_canon_sha256": "6dfcf45c6bd78e65529e49c6897804020a56be765bd1885b06ade6da0351d8a1"
  },
  "schema_version": "1.0",
  "source": {
    "id": "2507.22391",
    "kind": "arxiv",
    "version": 1
  }
}