Pith Number

pith:CPO26EAB

pith:2015:CPO26EABS463IRJK4JLINYOI4Q

not attested not anchored not stored refs pending

Formal Support for Standardizing Protocols with State

John D. Ramsdell, Joshua D. Guttman, Moses D. Liskov, Paul D. Rowe

arxiv:1509.07552 v1 · 2015-09-24 · cs.CR

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

Add to your LaTeX paper

\usepackage{pith}
\pithnumber{CPO26EABS463IRJK4JLINYOI4Q}

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	2026-05-18T00:18:32.208751Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

13ddaf1001973db4452ae25686e1c8e41e7a1754cc1e1641cd070f96f1da33c6

Aliases

arxiv: 1509.07552 · arxiv_version: 1509.07552v1 · doi: 10.48550/arxiv.1509.07552 · pith_short_12: CPO26EABS463 · pith_short_16: CPO26EABS463IRJK · pith_short_8: CPO26EAB

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/CPO26EABS463IRJK4JLINYOI4Q \
  | 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: 13ddaf1001973db4452ae25686e1c8e41e7a1754cc1e1641cd070f96f1da33c6

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "adaf3968e504273fb3dd161d6bd87a3a9ca1121afb7d8cb8c207326cb4341229",
    "cross_cats_sorted": [],
    "license": "http://arxiv.org/licenses/nonexclusive-distrib/1.0/",
    "primary_cat": "cs.CR",
    "submitted_at": "2015-09-24T22:18:46Z",
    "title_canon_sha256": "6fdcc92e0bb75d690c66107218e89f4d4d819ec0602fe9bdf218ccaf217e11b3"
  },
  "schema_version": "1.0",
  "source": {
    "id": "1509.07552",
    "kind": "arxiv",
    "version": 1
  }
}