Pith Number

pith:QN2JU3KY

pith:2003:QN2JU3KYZG2MP3MCMSCX6JB3RL

not attested not anchored not stored refs pending

The Chess conjecture

Rustam Sadykov

arxiv:math/0301371 v2 · 2003-01-31 · math.GT

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

Add to your LaTeX paper

\usepackage{pith}
\pithnumber{QN2JU3KYZG2MP3MCMSCX6JB3RL}

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	2026-05-18T02:41:32.759446Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

83749a6d58c9b4c7ed8264857f243b8afa7ce96c67a22a80224dbd4803866a2c

Aliases

arxiv: math/0301371 · arxiv_version: math/0301371v2 · doi: 10.48550/arxiv.math/0301371 · pith_short_12: QN2JU3KYZG2M · pith_short_16: QN2JU3KYZG2MP3MC · pith_short_8: QN2JU3KY

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/QN2JU3KYZG2MP3MCMSCX6JB3RL \
  | 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: 83749a6d58c9b4c7ed8264857f243b8afa7ce96c67a22a80224dbd4803866a2c

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "6574f22846fe92fca184d5fb0f377bbb9df0573f1db64ec2fb62aa7e66f245af",
    "cross_cats_sorted": [],
    "license": "",
    "primary_cat": "math.GT",
    "submitted_at": "2003-01-31T15:30:48Z",
    "title_canon_sha256": "f5d49a48b299787e7634c71c0e9bd4e672a79a1e53ae6bde3d18ca7974b292a6"
  },
  "schema_version": "1.0",
  "source": {
    "id": "math/0301371",
    "kind": "arxiv",
    "version": 2
  }
}