Pith Number

pith:WOVL6RAX

pith:2018:WOVL6RAXJSFPC2VU5HDZN2X2TW

not attested not anchored not stored refs pending

Graph Similarity and Approximate Isomorphism

Gaurav Rattan, Gerhard J. Woeginger, Martin Grohe

arxiv:1802.08509 v1 · 2018-02-23 · cs.DS · cs.CC · cs.DM

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

Add to your LaTeX paper

\usepackage{pith}
\pithnumber{WOVL6RAXJSFPC2VU5HDZN2X2TW}

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	2026-05-18T00:22:41.378517Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

b3aabf44174c8af16ab4e9c796eafa9d9081ebeda4e901fc6c0d6019df734179

Aliases

arxiv: 1802.08509 · arxiv_version: 1802.08509v1 · doi: 10.48550/arxiv.1802.08509 · pith_short_12: WOVL6RAXJSFP · pith_short_16: WOVL6RAXJSFPC2VU · pith_short_8: WOVL6RAX

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/WOVL6RAXJSFPC2VU5HDZN2X2TW \
  | 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: b3aabf44174c8af16ab4e9c796eafa9d9081ebeda4e901fc6c0d6019df734179

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "ec4f67bb2122c071c06861a23f9b7754661f06c60402faadee0c091365177698",
    "cross_cats_sorted": [
      "cs.CC",
      "cs.DM"
    ],
    "license": "http://arxiv.org/licenses/nonexclusive-distrib/1.0/",
    "primary_cat": "cs.DS",
    "submitted_at": "2018-02-23T12:54:40Z",
    "title_canon_sha256": "a2525b9ea887ed63bb00410365f8079b15401f9be6be5ecb45c51dc26fa60095"
  },
  "schema_version": "1.0",
  "source": {
    "id": "1802.08509",
    "kind": "arxiv",
    "version": 1
  }
}