Pith Number

pith:WFLEBQPE

pith:2015:WFLEBQPEZAMIOUTFK3HXIWF4PW

not attested not anchored not stored refs pending

Proving the Herman-Protocol Conjecture

James Worrell, Jo\"el Ouaknine, Maria Bruna, Radu Grigore, Stefan Kiefer

arxiv:1504.01130 v3 · 2015-04-05 · cs.DS · cs.CC · cs.DC

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

Add to your LaTeX paper

\usepackage{pith}
\pithnumber{WFLEBQPEZAMIOUTFK3HXIWF4PW}

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	2026-05-18T00:33:07.392607Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

b15640c1e4c81887526556cf7458bc7db5d5d08e466df4517693d5e80dae54fa

Aliases

arxiv: 1504.01130 · arxiv_version: 1504.01130v3 · doi: 10.48550/arxiv.1504.01130 · pith_short_12: WFLEBQPEZAMI · pith_short_16: WFLEBQPEZAMIOUTF · pith_short_8: WFLEBQPE

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/WFLEBQPEZAMIOUTFK3HXIWF4PW \
  | 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: b15640c1e4c81887526556cf7458bc7db5d5d08e466df4517693d5e80dae54fa

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "f76f1cc8ce6a98075caa56d5ab10b83aadf51592d27cdfa308e0569cb8e3ac24",
    "cross_cats_sorted": [
      "cs.CC",
      "cs.DC"
    ],
    "license": "http://creativecommons.org/licenses/by/4.0/",
    "primary_cat": "cs.DS",
    "submitted_at": "2015-04-05T15:55:55Z",
    "title_canon_sha256": "42a95d2318f8129fbe7d9a5882ffe0d0096be61134da24e5c991e88ec65bb341"
  },
  "schema_version": "1.0",
  "source": {
    "id": "1504.01130",
    "kind": "arxiv",
    "version": 3
  }
}