Pith Number

pith:7EH6LWAD

pith:2023:7EH6LWADBDHZ5J4NI7EBNCBLCN

not attested not anchored not stored refs pending

Cultural transmission of move choice in chess

Egor Lappo, Marcus W. Feldman, Noah A. Rosenberg

arxiv:2302.10375 v3 · 2023-02-21 · physics.soc-ph · q-bio.PE

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

Add to your LaTeX paper

\usepackage{pith}
\pithnumber{7EH6LWADBDHZ5J4NI7EBNCBLCN}

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	2026-05-22T01:03:13.320520Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

f90fe5d80308cf9ea78d47c816882b136ff32dabd7b766c82c10130c573ae72d

Aliases

arxiv: 2302.10375 · arxiv_version: 2302.10375v3 · doi: 10.48550/arxiv.2302.10375 · pith_short_12: 7EH6LWADBDHZ · pith_short_16: 7EH6LWADBDHZ5J4N · pith_short_8: 7EH6LWAD

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/7EH6LWADBDHZ5J4NI7EBNCBLCN \
  | 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: f90fe5d80308cf9ea78d47c816882b136ff32dabd7b766c82c10130c573ae72d

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "49cdc9d07dfc218cb8e5437e8a8347ef2d800a4b9732daaf189196aef44cb116",
    "cross_cats_sorted": [
      "q-bio.PE"
    ],
    "license": "http://creativecommons.org/licenses/by/4.0/",
    "primary_cat": "physics.soc-ph",
    "submitted_at": "2023-02-21T00:25:41Z",
    "title_canon_sha256": "594d399b6d2ace64e201998748fc47876c9f1abd55287dff5e051d0a6b5a6420"
  },
  "schema_version": "1.0",
  "source": {
    "id": "2302.10375",
    "kind": "arxiv",
    "version": 3
  }
}