Pith Number

pith:ZNXBUIQC

pith:2025:ZNXBUIQCQCAQVJHC62KOROYXE5

not attested not anchored not stored refs pending

What should an AI assessor optimise for?

Daniel Romero-Alvarado, Fernando Mart\'inez-Plumed, Jos\'e Hern\'andez-Orallo

arxiv:2502.00365 v1 · 2025-02-01 · cs.LG · 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{ZNXBUIQCQCAQVJHC62KOROYXE5}

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	2026-07-05T10:08:32.738909Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

cb6e1a220280810aa4e2f694e8bb17277c57c53ea3def532469be6ed66633000

Aliases

arxiv: 2502.00365 · arxiv_version: 2502.00365v1 · doi: 10.48550/arxiv.2502.00365 · pith_short_12: ZNXBUIQCQCAQ · pith_short_16: ZNXBUIQCQCAQVJHC · pith_short_8: ZNXBUIQC

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/ZNXBUIQCQCAQVJHC62KOROYXE5 \
  | 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: cb6e1a220280810aa4e2f694e8bb17277c57c53ea3def532469be6ed66633000

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "eede433b77385e32f6b80b273fcaaf73468828af65100b3ca213f10136db0b69",
    "cross_cats_sorted": [
      "cs.AI"
    ],
    "license": "http://creativecommons.org/licenses/by/4.0/",
    "primary_cat": "cs.LG",
    "submitted_at": "2025-02-01T08:41:57Z",
    "title_canon_sha256": "48b0357b8e0f6cc941a98e83a4fab8ea34008a8e2e0ca390aada5de24ee2c0aa"
  },
  "schema_version": "1.0",
  "source": {
    "id": "2502.00365",
    "kind": "arxiv",
    "version": 1
  }
}