Pith Number

pith:MPEYCOIT

pith:2016:MPEYCOITBGDOCDRXUUE4WO4XTE

not attested not anchored not stored refs pending

New Bounds for Facial Nonrepetitive Colouring

Lucas Rioux-Maldague, Pat Morin, Prosenjit Bose, Vida Dujmovi\'c

arxiv:1604.01282 v1 · 2016-04-05 · 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{MPEYCOITBGDOCDRXUUE4WO4XTE}

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	2026-05-18T01:17:38.636529Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

63c98139130986e10e37a509cb3b97990128e8376737585453fb1f498032c5d0

Aliases

arxiv: 1604.01282 · arxiv_version: 1604.01282v1 · doi: 10.48550/arxiv.1604.01282 · pith_short_12: MPEYCOITBGDO · pith_short_16: MPEYCOITBGDOCDRX · pith_short_8: MPEYCOIT

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/MPEYCOITBGDOCDRXUUE4WO4XTE \
  | 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: 63c98139130986e10e37a509cb3b97990128e8376737585453fb1f498032c5d0

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "1bd2c88285883f4be2422e9dcc1f392f06cfaa7f47cf62e3598d820fec4cf123",
    "cross_cats_sorted": [],
    "license": "http://arxiv.org/licenses/nonexclusive-distrib/1.0/",
    "primary_cat": "math.CO",
    "submitted_at": "2016-04-05T14:55:17Z",
    "title_canon_sha256": "b3dbe285decb265f6012439b83416c409ffbe1d2f2cb5715891ac68a4b32976f"
  },
  "schema_version": "1.0",
  "source": {
    "id": "1604.01282",
    "kind": "arxiv",
    "version": 1
  }
}