Pith Number

pith:EIRSEQSK

pith:2012:EIRSEQSK7D2STB5LMFK2CJX6WC

not attested not anchored not stored refs pending

An n-in-a-row Game

Joshua Erde

arxiv:1209.5123 v1 · 2012-09-23 · math.CO · cs.DM

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

Add to your LaTeX paper

\usepackage{pith}
\pithnumber{EIRSEQSK7D2STB5LMFK2CJX6WC}

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	2026-05-18T03:44:59.150951Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

222322424af8f52987ab6155a126feb0841f5dc264c04df4a21ca624e1b2d99f

Aliases

arxiv: 1209.5123 · arxiv_version: 1209.5123v1 · doi: 10.48550/arxiv.1209.5123 · pith_short_12: EIRSEQSK7D2S · pith_short_16: EIRSEQSK7D2STB5L · pith_short_8: EIRSEQSK

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/EIRSEQSK7D2STB5LMFK2CJX6WC \
  | 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: 222322424af8f52987ab6155a126feb0841f5dc264c04df4a21ca624e1b2d99f

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "cae35b224174b4163b4995ecb5cc7e453afafb8d146ae99a73b733d6dcb685ef",
    "cross_cats_sorted": [
      "cs.DM"
    ],
    "license": "http://arxiv.org/licenses/nonexclusive-distrib/1.0/",
    "primary_cat": "math.CO",
    "submitted_at": "2012-09-23T23:03:45Z",
    "title_canon_sha256": "c87cb36b7ed9ac5c243ee218db84a8072fd96546c16a318e3569cefd5bf2b2dc"
  },
  "schema_version": "1.0",
  "source": {
    "id": "1209.5123",
    "kind": "arxiv",
    "version": 1
  }
}