Pith Number

pith:Q5ZCY4J3

pith:2025:Q5ZCY4J3BDWAIXCGV5BX4MYLB5

not attested not anchored not stored refs pending

A Quantum-Inspired Algorithm for Graph Isomorphism

Innes L. Maxwell, Jelmer J. Renema, Stefan N. van den Hoven

arxiv:2512.24423 v2 · 2025-12-30 · quant-ph

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

Add to your LaTeX paper

\usepackage{pith}
\pithnumber{Q5ZCY4J3BDWAIXCGV5BX4MYLB5}

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	2026-06-02T03:04:36.730823Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

87722c713b08ec045c46af437e330b0f416364286baa0d614ef20ba2615209c4

Aliases

arxiv: 2512.24423 · arxiv_version: 2512.24423v2 · doi: 10.48550/arxiv.2512.24423 · pith_short_12: Q5ZCY4J3BDWA · pith_short_16: Q5ZCY4J3BDWAIXCG · pith_short_8: Q5ZCY4J3

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/Q5ZCY4J3BDWAIXCGV5BX4MYLB5 \
  | 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: 87722c713b08ec045c46af437e330b0f416364286baa0d614ef20ba2615209c4

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "cafbe92a5cff9d1d4d4b69436440d9ae6c5384eaf1032362a30970b6d16ca040",
    "cross_cats_sorted": [],
    "license": "http://creativecommons.org/licenses/by/4.0/",
    "primary_cat": "quant-ph",
    "submitted_at": "2025-12-30T19:02:48Z",
    "title_canon_sha256": "f8b961fce702f8d35c9597c3a11e59ee5409dc2caefc98da121f419addf70354"
  },
  "schema_version": "1.0",
  "source": {
    "id": "2512.24423",
    "kind": "arxiv",
    "version": 2
  }
}