Pith Number

pith:NM3L3VKH

pith:2014:NM3L3VKH7D6ILX5M3HM2V4RF3T

not attested not anchored not stored refs pending

Graph Isomorphism and the Lasserre Hierarchy

Aaron Snook, Grant Schoenebeck, Paolo Codenotti

arxiv:1401.0758 v1 · 2014-01-04 · cs.CC · 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{NM3L3VKH7D6ILX5M3HM2V4RF3T}

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	2026-05-18T01:01:06.720940Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

6b36bdd547f8fc85dfacd9d9aaf225dcf5918976f545f888da09787206c5c281

Aliases

arxiv: 1401.0758 · arxiv_version: 1401.0758v1 · doi: 10.48550/arxiv.1401.0758 · pith_short_12: NM3L3VKH7D6I · pith_short_16: NM3L3VKH7D6ILX5M · pith_short_8: NM3L3VKH

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/NM3L3VKH7D6ILX5M3HM2V4RF3T \
  | 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: 6b36bdd547f8fc85dfacd9d9aaf225dcf5918976f545f888da09787206c5c281

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "61a85998cc66cb93f928d2a0e3f75fd7f6800e93e55a66f91eea94f4706bf484",
    "cross_cats_sorted": [
      "math.CO"
    ],
    "license": "http://arxiv.org/licenses/nonexclusive-distrib/1.0/",
    "primary_cat": "cs.CC",
    "submitted_at": "2014-01-04T00:16:48Z",
    "title_canon_sha256": "260bb05f0b7672dab48a0a9b855095bbd51e00cafaa2ad36a8bf80c110288334"
  },
  "schema_version": "1.0",
  "source": {
    "id": "1401.0758",
    "kind": "arxiv",
    "version": 1
  }
}