Pith Number

pith:27MFYS44

pith:2010:27MFYS44XWTV43HALSKU54PBNO

not attested not anchored not stored refs pending

Primitives for Contract-based Synchronization

Massimo Bartoletti (Dipartimento di Matematica e Informatica, Roberto Zunino (Dipartimento di Ingegneria e Scienza dell'Informazione, Universit\`a degli Studi di Cagliari), Universit\`a degli studi di Trento)

arxiv:1010.5570 v1 · 2010-10-27 · cs.PL · cs.LO · cs.SE

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

Add to your LaTeX paper

\usepackage{pith}
\pithnumber{27MFYS44XWTV43HALSKU54PBNO}

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	2026-05-18T04:38:16.401252Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

d7d85c4b9cbda75e6ce05c954ef1e16bb7a9bca34d1bdd98033cea24ffc68098

Aliases

arxiv: 1010.5570 · arxiv_version: 1010.5570v1 · doi: 10.48550/arxiv.1010.5570 · pith_short_12: 27MFYS44XWTV · pith_short_16: 27MFYS44XWTV43HA · pith_short_8: 27MFYS44

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/27MFYS44XWTV43HALSKU54PBNO \
  | 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: d7d85c4b9cbda75e6ce05c954ef1e16bb7a9bca34d1bdd98033cea24ffc68098

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "77eeca7ba114ae65a53ef52cece42b24aecc7793c9a90717e734a3d50d481076",
    "cross_cats_sorted": [
      "cs.LO",
      "cs.SE"
    ],
    "license": "http://arxiv.org/licenses/nonexclusive-distrib/1.0/",
    "primary_cat": "cs.PL",
    "submitted_at": "2010-10-27T05:04:32Z",
    "title_canon_sha256": "1143f820ec48c12e70ae3e605844260c6e8495aedc7ac0ab515bb706e09220e8"
  },
  "schema_version": "1.0",
  "source": {
    "id": "1010.5570",
    "kind": "arxiv",
    "version": 1
  }
}