Pith Number

pith:Q4OC5C2W

pith:2016:Q4OC5C2WUOIIC7ISNEOMEFYYRM

not attested not anchored not stored refs pending

The Descriptive Complexity of Subgraph Isomorphism without Numerics

Maksim Zhukovskii, Oleg Verbitsky

arxiv:1607.08067 v4 · 2016-07-27 · cs.CC · cs.LO

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

Add to your LaTeX paper

\usepackage{pith}
\pithnumber{Q4OC5C2WUOIIC7ISNEOMEFYYRM}

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	2026-05-18T00:35:44.151439Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

871c2e8b56a390817d12691cc217188b1cc1a6622ba4a448e7180cbdff0810fe

Aliases

arxiv: 1607.08067 · arxiv_version: 1607.08067v4 · doi: 10.48550/arxiv.1607.08067 · pith_short_12: Q4OC5C2WUOII · pith_short_16: Q4OC5C2WUOIIC7IS · pith_short_8: Q4OC5C2W

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/Q4OC5C2WUOIIC7ISNEOMEFYYRM \
  | 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: 871c2e8b56a390817d12691cc217188b1cc1a6622ba4a448e7180cbdff0810fe

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "fc2576b88f46a01c5bf0436da2af67483278ee01714d14811056bfcb12082a44",
    "cross_cats_sorted": [
      "cs.LO"
    ],
    "license": "http://arxiv.org/licenses/nonexclusive-distrib/1.0/",
    "primary_cat": "cs.CC",
    "submitted_at": "2016-07-27T12:53:57Z",
    "title_canon_sha256": "cf067181eb2188ee57009edd9cc037104c9d1787fa0d65729f8e147cea3fefcc"
  },
  "schema_version": "1.0",
  "source": {
    "id": "1607.08067",
    "kind": "arxiv",
    "version": 4
  }
}