Pith Number

pith:D6WNZRKS

pith:2018:D6WNZRKS3MSINJX7XOC5Q7L5LG

not attested not anchored not stored refs pending

Universal gates with wires in a row

Ville Salo

arxiv:1809.08050 v2 · 2018-09-21 · math.GR · cs.FL · 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{D6WNZRKS3MSINJX7XOC5Q7L5LG}

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	2026-05-18T00:05:04.328009Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

1facdcc552db2486a6ffbb85d87d7d5984dee0e3c92ab1369b08ace67810d365

Aliases

arxiv: 1809.08050 · arxiv_version: 1809.08050v2 · doi: 10.48550/arxiv.1809.08050 · pith_short_12: D6WNZRKS3MSI · pith_short_16: D6WNZRKS3MSINJX7 · pith_short_8: D6WNZRKS

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/D6WNZRKS3MSINJX7XOC5Q7L5LG \
  | 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: 1facdcc552db2486a6ffbb85d87d7d5984dee0e3c92ab1369b08ace67810d365

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "1a87130c916ace3488f2ab69db89a53fedf5d18d234266e5c7a1f279a3efff48",
    "cross_cats_sorted": [
      "cs.FL",
      "math.CO"
    ],
    "license": "http://arxiv.org/licenses/nonexclusive-distrib/1.0/",
    "primary_cat": "math.GR",
    "submitted_at": "2018-09-21T11:55:31Z",
    "title_canon_sha256": "1b115a1398b4a2bf61a63349d06accf5963d47657b2e3ee268a6cd566d6816c6"
  },
  "schema_version": "1.0",
  "source": {
    "id": "1809.08050",
    "kind": "arxiv",
    "version": 2
  }
}