Pith Number

pith:7OKDM5SK

pith:2013:7OKDM5SKCQ2SKWZC2RF7OZ75SF

not attested not anchored not stored refs pending

Stable and Informative Spectral Signatures for Graph Matching

Leonidas Guibas, Nan Hu, Raif M. Rustamov

arxiv:1304.1572 v5 · 2013-04-04 · cs.CV

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

Add to your LaTeX paper

\usepackage{pith}
\pithnumber{7OKDM5SKCQ2SKWZC2RF7OZ75SF}

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	2026-05-18T00:18:47.290906Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

fb9436764a1435255b22d44bf767fd9152b46c5f96e16d59cc858ce147226588

Aliases

arxiv: 1304.1572 · arxiv_version: 1304.1572v5 · doi: 10.48550/arxiv.1304.1572 · pith_short_12: 7OKDM5SKCQ2S · pith_short_16: 7OKDM5SKCQ2SKWZC · pith_short_8: 7OKDM5SK

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/7OKDM5SKCQ2SKWZC2RF7OZ75SF \
  | 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: fb9436764a1435255b22d44bf767fd9152b46c5f96e16d59cc858ce147226588

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "fe5f949ebf8e9147744e2f2306b202b5ad6052bf744dffaff7351a95d07de6f6",
    "cross_cats_sorted": [],
    "license": "http://arxiv.org/licenses/nonexclusive-distrib/1.0/",
    "primary_cat": "cs.CV",
    "submitted_at": "2013-04-04T22:19:49Z",
    "title_canon_sha256": "bc125657904950106558011bc6bc46d1abe42d171922c6b6ee2577ad52c4f78f"
  },
  "schema_version": "1.0",
  "source": {
    "id": "1304.1572",
    "kind": "arxiv",
    "version": 5
  }
}