Pith Number

pith:PKB26DQH

pith:2026:PKB26DQHOJ4B6E44CV2UKURQFG

not attested not anchored not stored refs pending

AICID: Unique Identifiers for AI Scientists

Cl\'ement Vidal, Martin Monperrus

arxiv:2606.28756 v1 · 2026-06-27 · cs.DL · cs.CY

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

Add to your LaTeX paper

\usepackage{pith}
\pithnumber{PKB26DQHOJ4B6E44CV2UKURQFG}

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	2026-06-30T01:16:50.550750Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

7a83af0e0772781f139c157545523029a365430adfa00dd45e8aef7eea1cc780

Aliases

arxiv: 2606.28756 · arxiv_version: 2606.28756v1 · doi: 10.48550/arxiv.2606.28756 · pith_short_12: PKB26DQHOJ4B · pith_short_16: PKB26DQHOJ4B6E44 · pith_short_8: PKB26DQH

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/PKB26DQHOJ4B6E44CV2UKURQFG \
  | 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: 7a83af0e0772781f139c157545523029a365430adfa00dd45e8aef7eea1cc780

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "c83d442be0d652a4a85c687b5cb3e3e3fed4846c3a9b06f7c9410407b404c270",
    "cross_cats_sorted": [
      "cs.CY"
    ],
    "license": "http://arxiv.org/licenses/nonexclusive-distrib/1.0/",
    "primary_cat": "cs.DL",
    "submitted_at": "2026-06-27T06:07:25Z",
    "title_canon_sha256": "afde764936d2236ba7055a3d65310ead92bf7f3c144f978087a52a984e42960b"
  },
  "schema_version": "1.0",
  "source": {
    "id": "2606.28756",
    "kind": "arxiv",
    "version": 1
  }
}