Pith Number

pith:MYAQUZ7C

pith:2015:MYAQUZ7C3QBJHGXFR4TL3IXLUU

not attested not anchored not stored refs pending

List Colouring Big Graphs On-Line

Alejandro L\'opez-Ortiz, Daniela Maftuleac, Martin Derka

arxiv:1502.02557 v1 · 2015-02-09 · cs.DS · cs.GT · cs.SI

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

Add to your LaTeX paper

\usepackage{pith}
\pithnumber{MYAQUZ7C3QBJHGXFR4TL3IXLUU}

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	2026-05-18T02:27:41.904151Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

66010a67e2dc02939ae58f26bda2eba53599fae60e09e2485b4048d27262eee0

Aliases

arxiv: 1502.02557 · arxiv_version: 1502.02557v1 · doi: 10.48550/arxiv.1502.02557 · pith_short_12: MYAQUZ7C3QBJ · pith_short_16: MYAQUZ7C3QBJHGXF · pith_short_8: MYAQUZ7C

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/MYAQUZ7C3QBJHGXFR4TL3IXLUU \
  | 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: 66010a67e2dc02939ae58f26bda2eba53599fae60e09e2485b4048d27262eee0

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "66bdc89c2510183ec46113040912e38a9b02996d004833188ef85f5300f53123",
    "cross_cats_sorted": [
      "cs.GT",
      "cs.SI"
    ],
    "license": "http://arxiv.org/licenses/nonexclusive-distrib/1.0/",
    "primary_cat": "cs.DS",
    "submitted_at": "2015-02-09T16:49:15Z",
    "title_canon_sha256": "c16661c8da9d90755bf3eeb573ecfec03502b868e85fcb4fe8872533fe6f6d47"
  },
  "schema_version": "1.0",
  "source": {
    "id": "1502.02557",
    "kind": "arxiv",
    "version": 1
  }
}