Pith Number

pith:JZ2WCBLJ

pith:2013:JZ2WCBLJDUDEAQBIWLDO4GUKXW

not attested not anchored not stored refs pending

Graph 3-coloring with a hybrid self-adaptive evolutionary algorithm

Bogdan Filipi\v{c}, Iztok Fister, Marjan Mernik

arxiv:1301.0939 v1 · 2013-01-05 · cs.NE

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

Add to your LaTeX paper

\usepackage{pith}
\pithnumber{JZ2WCBLJDUDEAQBIWLDO4GUKXW}

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	2026-05-18T03:37:07.264612Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

4e756105691d06404028b2c6ee1a8abda4266d4247e5bd872c187a94e4914130

Aliases

arxiv: 1301.0939 · arxiv_version: 1301.0939v1 · doi: 10.48550/arxiv.1301.0939 · pith_short_12: JZ2WCBLJDUDE · pith_short_16: JZ2WCBLJDUDEAQBI · pith_short_8: JZ2WCBLJ

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/JZ2WCBLJDUDEAQBIWLDO4GUKXW \
  | 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: 4e756105691d06404028b2c6ee1a8abda4266d4247e5bd872c187a94e4914130

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "2a98639707cdbc522cddf5b6dbbc3ca22d4ff6f9f582d8e58a06a2507148dc13",
    "cross_cats_sorted": [],
    "license": "http://arxiv.org/licenses/nonexclusive-distrib/1.0/",
    "primary_cat": "cs.NE",
    "submitted_at": "2013-01-05T20:11:43Z",
    "title_canon_sha256": "6f65386bd33dd002f92386dabe7d2585ea543b6405671fc958eeb5c5995a1a2d"
  },
  "schema_version": "1.0",
  "source": {
    "id": "1301.0939",
    "kind": "arxiv",
    "version": 1
  }
}