Pith Number

pith:5JWKYL5P

pith:2012:5JWKYL5P7FCDZ2HYSEU2XSTO2T

not attested not anchored not stored refs pending

Move-by-move dynamics of the advantage in chess matches reveals population-level learning of the game

E. K. Lenzi, H. V. Ribeiro, L. A. N. Amaral, M. del Castillo-Mussot, R. S. Mendes

arxiv:1212.2787 v1 · 2012-12-12 · physics.data-an · physics.comp-ph · physics.soc-ph

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

Add to your LaTeX paper

\usepackage{pith}
\pithnumber{5JWKYL5P7FCDZ2HYSEU2XSTO2T}

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	2026-05-18T03:33:25.304122Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

ea6cac2faff9443ce8f89129abca6ed4e251d5606c8455698908914b116b7e06

Aliases

arxiv: 1212.2787 · arxiv_version: 1212.2787v1 · doi: 10.48550/arxiv.1212.2787 · pith_short_12: 5JWKYL5P7FCD · pith_short_16: 5JWKYL5P7FCDZ2HY · pith_short_8: 5JWKYL5P

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/5JWKYL5P7FCDZ2HYSEU2XSTO2T \
  | 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: ea6cac2faff9443ce8f89129abca6ed4e251d5606c8455698908914b116b7e06

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "d5a760250e7399fe463aa214f4fb4347bc05023a4d1f51801609f6392ceaf47e",
    "cross_cats_sorted": [
      "physics.comp-ph",
      "physics.soc-ph"
    ],
    "license": "http://arxiv.org/licenses/nonexclusive-distrib/1.0/",
    "primary_cat": "physics.data-an",
    "submitted_at": "2012-12-12T12:02:31Z",
    "title_canon_sha256": "39077512b6a039a3ba7482b0ce9021b5e0f126e8a757902d354918cc1ed450b4"
  },
  "schema_version": "1.0",
  "source": {
    "id": "1212.2787",
    "kind": "arxiv",
    "version": 1
  }
}