Pith Number

pith:WCV7WJHP

pith:2013:WCV7WJHPFXFOKU72SNIJKRQ42D

not attested not anchored not stored refs pending

Happy Edges: Threshold-Coloring of Regular Lattices

Jakson Toeniskoetter, Md. Jawaherul Alam, Sergey Pupyrev, Stephen G. Kobourov

arxiv:1306.2053 v2 · 2013-06-09 · cs.DS

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

Add to your LaTeX paper

\usepackage{pith}
\pithnumber{WCV7WJHPFXFOKU72SNIJKRQ42D}

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	2026-05-18T02:56:59.908473Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

b0abfb24ef2dcae553fa935095461cd0d061be3fc2771d6d13dd0d08444c9f22

Aliases

arxiv: 1306.2053 · arxiv_version: 1306.2053v2 · doi: 10.48550/arxiv.1306.2053 · pith_short_12: WCV7WJHPFXFO · pith_short_16: WCV7WJHPFXFOKU72 · pith_short_8: WCV7WJHP

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/WCV7WJHPFXFOKU72SNIJKRQ42D \
  | 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: b0abfb24ef2dcae553fa935095461cd0d061be3fc2771d6d13dd0d08444c9f22

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "fc8bafe99804a1f7e68f3f16bd1740f04006ca331ff3654c137ff1117a942a17",
    "cross_cats_sorted": [],
    "license": "http://arxiv.org/licenses/nonexclusive-distrib/1.0/",
    "primary_cat": "cs.DS",
    "submitted_at": "2013-06-09T19:23:58Z",
    "title_canon_sha256": "7ecab12123373f8dd721703dbeeb24614929d0e8481bce9e72e7876c909cd402"
  },
  "schema_version": "1.0",
  "source": {
    "id": "1306.2053",
    "kind": "arxiv",
    "version": 2
  }
}