Pith Number

pith:O3NQXY47

pith:2014:O3NQXY47WCGNH7IERA6OU4VFAH

not attested not anchored not stored refs pending

Godsil-McKay switching and isomorphism

Aida Abiad, Andries E. Brouwer, Willem H. Haemers

arxiv:1406.4170 v1 · 2014-06-16 · math.CO

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

Add to your LaTeX paper

\usepackage{pith}
\pithnumber{O3NQXY47WCGNH7IERA6OU4VFAH}

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	2026-05-18T02:49:38.254254Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

76db0be39fb08cd3fd04883cea72a501c93613e2070efc36358bd79009eb5c2d

Aliases

arxiv: 1406.4170 · arxiv_version: 1406.4170v1 · doi: 10.48550/arxiv.1406.4170 · pith_short_12: O3NQXY47WCGN · pith_short_16: O3NQXY47WCGNH7IE · pith_short_8: O3NQXY47

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/O3NQXY47WCGNH7IERA6OU4VFAH \
  | 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: 76db0be39fb08cd3fd04883cea72a501c93613e2070efc36358bd79009eb5c2d

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "157fce500d9c8340114d1d71141c20177b5799d5f10f3aa8cf98a41d75725bae",
    "cross_cats_sorted": [],
    "license": "http://arxiv.org/licenses/nonexclusive-distrib/1.0/",
    "primary_cat": "math.CO",
    "submitted_at": "2014-06-16T21:01:26Z",
    "title_canon_sha256": "54e447ce685d1a986c50c7fd2bef30da592791194628bcd4139cfe4e8b4b9515"
  },
  "schema_version": "1.0",
  "source": {
    "id": "1406.4170",
    "kind": "arxiv",
    "version": 1
  }
}