Pith Number

pith:N53JD6CG

pith:2025:N53JD6CGTBHBLWLZEAQO2OJDU3

not attested not anchored not stored refs pending

Indicated list colouring game on graphs

Huan Zhou, Jialu Zhu, Xuding Zhu, Yangyan Gu, Yiting Jiang

arxiv:2502.16073 v1 · 2025-02-22 · math.CO

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

Add to your LaTeX paper

\usepackage{pith}
\pithnumber{N53JD6CGTBHBLWLZEAQO2OJDU3}

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	2026-07-05T10:18:20.640726Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

6f7691f846984e15d9792020ed3923a6c390d6118a9858559a4d6952bcb6c1c9

Aliases

arxiv: 2502.16073 · arxiv_version: 2502.16073v1 · doi: 10.48550/arxiv.2502.16073 · pith_short_12: N53JD6CGTBHB · pith_short_16: N53JD6CGTBHBLWLZ · pith_short_8: N53JD6CG

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/N53JD6CGTBHBLWLZEAQO2OJDU3 \
  | 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: 6f7691f846984e15d9792020ed3923a6c390d6118a9858559a4d6952bcb6c1c9

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "8a5179ae11adeddcc97103d18d32b92c7ba41205799a88039326b193e4a26fd1",
    "cross_cats_sorted": [],
    "license": "http://creativecommons.org/licenses/by/4.0/",
    "primary_cat": "math.CO",
    "submitted_at": "2025-02-22T04:30:58Z",
    "title_canon_sha256": "b9cd9fe0fc810965e25dedecc8e4c6a266d19b4ac15553a1678a7f01fdf0dde0"
  },
  "schema_version": "1.0",
  "source": {
    "id": "2502.16073",
    "kind": "arxiv",
    "version": 1
  }
}