Pith Number

pith:W4XIUECH

pith:2018:W4XIUECHVP6GKDQXNWJ7CHY4L6

not attested not anchored not stored refs pending

Spectrally Robust Graph Isomorphism

Alexandra Kolla, Ali Kemal Sinop, Ioannis Koutis, Vivek Madan

arxiv:1805.00181 v1 · 2018-05-01 · cs.DS

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

Add to your LaTeX paper

\usepackage{pith}
\pithnumber{W4XIUECHVP6GKDQXNWJ7CHY4L6}

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	2026-05-18T00:17:10.365460Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

b72e8a1047abfc650e176d93f11f1c5f83498c0259ed238ab979861644bcbe43

Aliases

arxiv: 1805.00181 · arxiv_version: 1805.00181v1 · doi: 10.48550/arxiv.1805.00181 · pith_short_12: W4XIUECHVP6G · pith_short_16: W4XIUECHVP6GKDQX · pith_short_8: W4XIUECH

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/W4XIUECHVP6GKDQXNWJ7CHY4L6 \
  | 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: b72e8a1047abfc650e176d93f11f1c5f83498c0259ed238ab979861644bcbe43

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "54ca05fa6d70980b7fbdbd297ec76ee0182045400fe76d8b7f3948cf815b1718",
    "cross_cats_sorted": [],
    "license": "http://arxiv.org/licenses/nonexclusive-distrib/1.0/",
    "primary_cat": "cs.DS",
    "submitted_at": "2018-05-01T04:18:15Z",
    "title_canon_sha256": "b1f88a9a19970b0bc48bdd75baa1ddd3ccb52ab84aab1a087b54fe933fd4f2f4"
  },
  "schema_version": "1.0",
  "source": {
    "id": "1805.00181",
    "kind": "arxiv",
    "version": 1
  }
}