Pith Number

pith:T4UQVKEW

pith:2011:T4UQVKEWMIUVAOWINSOEIREXB2

not attested not anchored not stored refs pending

Fast Isomorphism Testing of Graphs with Regularly-Connected Components

Antonio Fernandez Anta, Jose Luis Lopez-Presa

arxiv:1106.4489 v1 · 2011-06-22 · cs.DS · 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{T4UQVKEWMIUVAOWINSOEIREXB2}

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	2026-05-18T04:19:32.881752Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

9f290aa8966229503ac86c9c4444970e9eaf5f26e1d4c951dc5157f562991f55

Aliases

arxiv: 1106.4489 · arxiv_version: 1106.4489v1 · doi: 10.48550/arxiv.1106.4489 · pith_short_12: T4UQVKEWMIUV · pith_short_16: T4UQVKEWMIUVAOWI · pith_short_8: T4UQVKEW

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/T4UQVKEWMIUVAOWINSOEIREXB2 \
  | 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: 9f290aa8966229503ac86c9c4444970e9eaf5f26e1d4c951dc5157f562991f55

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "865341149b10c2c2e58bf716737df88c86b7ae2f08bc953d1f62cb9f1b40db08",
    "cross_cats_sorted": [
      "cs.DM"
    ],
    "license": "http://arxiv.org/licenses/nonexclusive-distrib/1.0/",
    "primary_cat": "cs.DS",
    "submitted_at": "2011-06-22T15:59:40Z",
    "title_canon_sha256": "39d1c5825b07f2dd2e03687e974555d2cc43b4df322dfa4b0874ac7259d0db61"
  },
  "schema_version": "1.0",
  "source": {
    "id": "1106.4489",
    "kind": "arxiv",
    "version": 1
  }
}