Pith Number

pith:6SXI43RJ

pith:2026:6SXI43RJ4NETES5B2SQLHMKAUE

not attested not anchored not stored refs pending

List-Coloring and Chromatic-Choosability -- A Dynamic Survey

K Somasundaram, Nandana K Vasudevan, N Narayanan

arxiv:2606.31702 v1 · 2026-06-30 · 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{6SXI43RJ4NETES5B2SQLHMKAUE}

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	2026-07-01T01:18:12.213908Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

f4ae8e6e29e349324ba1d4a0b3b140a114e222a362d7840eecd44224a7d59c4b

Aliases

arxiv: 2606.31702 · arxiv_version: 2606.31702v1 · doi: 10.48550/arxiv.2606.31702 · pith_short_12: 6SXI43RJ4NET · pith_short_16: 6SXI43RJ4NETES5B · pith_short_8: 6SXI43RJ

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/6SXI43RJ4NETES5B2SQLHMKAUE \
  | 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: f4ae8e6e29e349324ba1d4a0b3b140a114e222a362d7840eecd44224a7d59c4b

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "314e88bf0d5776a8763990dc6ba89cddead82b1dcba52afccc6ae57baf2bfa8a",
    "cross_cats_sorted": [],
    "license": "http://creativecommons.org/licenses/by/4.0/",
    "primary_cat": "math.CO",
    "submitted_at": "2026-06-30T14:10:19Z",
    "title_canon_sha256": "f8e439f53672e41f0631c63ef2847917450b3b416ee4d49e3f873914c7074ad4"
  },
  "schema_version": "1.0",
  "source": {
    "id": "2606.31702",
    "kind": "arxiv",
    "version": 1
  }
}