Pith Number

pith:BUV5DFQR

pith:2011:BUV5DFQRZOYWA4YKKZWTFQP5JD

not attested not anchored not stored refs pending

Contracts in distributed systems

COSBI, Emilio Tuosto (Department of Computer Science, Italy), Massimo Bartoletti (Dipartimento di Matematica e Informatica, Roberto Zunino (DISI-Universita' degli Studi di Trento, UK), Universita' degli Studi di Cagliari, University of Leicester

arxiv:1108.0471 v1 · 2011-08-02 · cs.PL · cs.DC · 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{BUV5DFQRZOYWA4YKKZWTFQP5JD}

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	2026-05-18T04:16:30.312681Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

0d2bd19611cbb160730a566d32c1fd48e72a1fffb0ee83083d1f39f52cc24ee2

Aliases

arxiv: 1108.0471 · arxiv_version: 1108.0471v1 · doi: 10.48550/arxiv.1108.0471 · pith_short_12: BUV5DFQRZOYW · pith_short_16: BUV5DFQRZOYWA4YK · pith_short_8: BUV5DFQR

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/BUV5DFQRZOYWA4YKKZWTFQP5JD \
  | 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: 0d2bd19611cbb160730a566d32c1fd48e72a1fffb0ee83083d1f39f52cc24ee2

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "b5fe44f038a79cbfde9311794ddc2f480b46171cfa7beee1a62fb6ae2c9fbfa7",
    "cross_cats_sorted": [
      "cs.DC",
      "cs.LO",
      "cs.SE"
    ],
    "license": "http://arxiv.org/licenses/nonexclusive-distrib/1.0/",
    "primary_cat": "cs.PL",
    "submitted_at": "2011-08-02T02:27:50Z",
    "title_canon_sha256": "4673a476e1fa50db7ca8284c739f005f6a5212933498fac1ee18cf381ce22472"
  },
  "schema_version": "1.0",
  "source": {
    "id": "1108.0471",
    "kind": "arxiv",
    "version": 1
  }
}