Pith Number

pith:S5NUK4MH

pith:2015:S5NUK4MHWKLGWOZMIBK6KWHKKL

not attested not anchored not stored refs pending

On Properties of Policy-Based Specifications

Andrea Margheri (Universit\`a degli Studi di Firenze, Francesco Tiezzi (Universit\`a di Camerino), Rosario Pugliese (Universit\`a degli Studi di Firenze), Universit\`a di Pisa)

arxiv:1508.03903 v1 · 2015-08-17 · cs.SE · 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{S5NUK4MHWKLGWOZMIBK6KWHKKL}

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	2026-05-18T01:35:14.938055Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

975b457187b2966b3b2c4055e558ea52f10c6585516dbd4ef063f1ccaa522cda

Aliases

arxiv: 1508.03903 · arxiv_version: 1508.03903v1 · doi: 10.48550/arxiv.1508.03903 · pith_short_12: S5NUK4MHWKLG · pith_short_16: S5NUK4MHWKLGWOZM · pith_short_8: S5NUK4MH

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/S5NUK4MHWKLGWOZMIBK6KWHKKL \
  | 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: 975b457187b2966b3b2c4055e558ea52f10c6585516dbd4ef063f1ccaa522cda

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "b4fc0a5159bc26910baac1774308b14e713f16885a8afc42bc88acea86c6fb7b",
    "cross_cats_sorted": [
      "cs.CR"
    ],
    "license": "http://arxiv.org/licenses/nonexclusive-distrib/1.0/",
    "primary_cat": "cs.SE",
    "submitted_at": "2015-08-17T01:51:12Z",
    "title_canon_sha256": "bb983e96eb85a9366d3cccb206a96523cf2a1567b3b29c03afa12d1e9b07ecdf"
  },
  "schema_version": "1.0",
  "source": {
    "id": "1508.03903",
    "kind": "arxiv",
    "version": 1
  }
}