Pith Number

pith:JJAW53QN

pith:2015:JJAW53QNNOVPUAQWPVB3XQ42V3

not attested not anchored not stored refs pending

Development of a VO Registry Subject Ontology using Automated Methods

Brian Thomas

arxiv:1502.05974 v1 · 2015-02-20 · astro-ph.IM · cs.AI

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

Add to your LaTeX paper

\usepackage{pith}
\pithnumber{JJAW53QNNOVPUAQWPVB3XQ42V3}

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	2026-05-18T02:26:44.433869Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

4a416eee0d6baafa02167d43bbc39aaecab9083ae3d354d535ab687dde8bcbf2

Aliases

arxiv: 1502.05974 · arxiv_version: 1502.05974v1 · doi: 10.48550/arxiv.1502.05974 · pith_short_12: JJAW53QNNOVP · pith_short_16: JJAW53QNNOVPUAQW · pith_short_8: JJAW53QN

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/JJAW53QNNOVPUAQWPVB3XQ42V3 \
  | 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: 4a416eee0d6baafa02167d43bbc39aaecab9083ae3d354d535ab687dde8bcbf2

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "791969a1fbba8be7552256c0e5e324e9bf7faaaf67167d0a86a97642b5258a53",
    "cross_cats_sorted": [
      "cs.AI"
    ],
    "license": "http://arxiv.org/licenses/nonexclusive-distrib/1.0/",
    "primary_cat": "astro-ph.IM",
    "submitted_at": "2015-02-20T18:56:26Z",
    "title_canon_sha256": "d1eb37c089942a7095d6652ef9510ba01530f23a1f6547f7ddf4ab6e760a0fec"
  },
  "schema_version": "1.0",
  "source": {
    "id": "1502.05974",
    "kind": "arxiv",
    "version": 1
  }
}