Pith Number

pith:OVAZGDPQ

pith:2017:OVAZGDPQO4P33NPXTV3HHETULB

not attested not anchored not stored refs pending

Johan Colouring of Graph Operations

Johan Kok, Sudev Naduvath

arxiv:1704.02869 v1 · 2017-04-03 · math.GM

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

Add to your LaTeX paper

\usepackage{pith}
\pithnumber{OVAZGDPQO4P33NPXTV3HHETULB}

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	2026-05-18T00:46:43.826943Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

7541930df0771fbdb5f79d76739274587efc5bd397360c086edf6fb5b9f23125

Aliases

arxiv: 1704.02869 · arxiv_version: 1704.02869v1 · doi: 10.48550/arxiv.1704.02869 · pith_short_12: OVAZGDPQO4P3 · pith_short_16: OVAZGDPQO4P33NPX · pith_short_8: OVAZGDPQ

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/OVAZGDPQO4P33NPXTV3HHETULB \
  | 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: 7541930df0771fbdb5f79d76739274587efc5bd397360c086edf6fb5b9f23125

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "ec8ef91dd8160e09dda6c2abc2e3fdbb164496d99e34d38e1d43525e3833a5b2",
    "cross_cats_sorted": [],
    "license": "http://arxiv.org/licenses/nonexclusive-distrib/1.0/",
    "primary_cat": "math.GM",
    "submitted_at": "2017-04-03T01:52:49Z",
    "title_canon_sha256": "b64ad9db3bb01fe25d3598f75f23f29304e59c41cd7b43efa4e753381c7a3359"
  },
  "schema_version": "1.0",
  "source": {
    "id": "1704.02869",
    "kind": "arxiv",
    "version": 1
  }
}