Pith Number

pith:XUSZRULX

pith:2021:XUSZRULX6SXT42I3NKY4X5V2XH

not attested not anchored not stored refs pending

Acquisition of Chess Knowledge in AlphaZero

Adam Pearce, Andrei Kapishnikov, Been Kim, Demis Hassabis, Nenad Toma\v{s}ev, Thomas McGrath, Ulrich Paquet, Vladimir Kramnik

arxiv:2111.09259 v3 · 2021-11-17 · cs.AI · stat.ML

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

Add to your LaTeX paper

\usepackage{pith}
\pithnumber{XUSZRULX6SXT42I3NKY4X5V2XH}

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.

Cited by

2 papers in Pith

Pythia: A Suite for Analyzing Large Language Models Across Training and Scaling

Progress measures for grokking via mechanistic interpretability

Receipt and verification

First computed	2026-07-05T05:28:19.519906Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

bd2598d177f4af3e691b6ab1cbf6bab9c1b2cce5cff3f3d0f5aabea6510b8f38

Aliases

arxiv: 2111.09259 · arxiv_version: 2111.09259v3 · doi: 10.48550/arxiv.2111.09259 · pith_short_12: XUSZRULX6SXT · pith_short_16: XUSZRULX6SXT42I3 · pith_short_8: XUSZRULX

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/XUSZRULX6SXT42I3NKY4X5V2XH \
  | 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: bd2598d177f4af3e691b6ab1cbf6bab9c1b2cce5cff3f3d0f5aabea6510b8f38

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "e5f9e791af5992fbb1924ce3fc9156a481089f578f6a01fd55b8db8b89f83c35",
    "cross_cats_sorted": [
      "stat.ML"
    ],
    "license": "http://arxiv.org/licenses/nonexclusive-distrib/1.0/",
    "primary_cat": "cs.AI",
    "submitted_at": "2021-11-17T17:46:19Z",
    "title_canon_sha256": "19b6e1588c275d69d48e561304e88ae61fce11ea2b6e17e8d244f2d1dc445a65"
  },
  "schema_version": "1.0",
  "source": {
    "id": "2111.09259",
    "kind": "arxiv",
    "version": 3
  }
}