Pith Number

pith:7FQQP73Z

pith:2013:7FQQP73ZWPE3BIVDJF5MQFF7ET

not attested not anchored not stored refs pending

Towards a Logic-Based Unifying Framework for Computing

Fariba Sadri, Robert Kowalski

arxiv:1301.6905 v2 · 2013-01-29 · cs.LO · cs.AI · cs.DB · cs.PL

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

Add to your LaTeX paper

\usepackage{pith}
\pithnumber{7FQQP73ZWPE3BIVDJF5MQFF7ET}

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	2026-05-18T02:53:27.177448Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

f96107ff79b3c9b0a2a3497ac814bf24e8478c349212cc41d628a57147c20d04

Aliases

arxiv: 1301.6905 · arxiv_version: 1301.6905v2 · doi: 10.48550/arxiv.1301.6905 · pith_short_12: 7FQQP73ZWPE3 · pith_short_16: 7FQQP73ZWPE3BIVD · pith_short_8: 7FQQP73Z

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/7FQQP73ZWPE3BIVDJF5MQFF7ET \
  | 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: f96107ff79b3c9b0a2a3497ac814bf24e8478c349212cc41d628a57147c20d04

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "30931ca3eb4e1191b3b491a652a585176a3628ca35ad00dd48ab6d777f9e1b6d",
    "cross_cats_sorted": [
      "cs.AI",
      "cs.DB",
      "cs.PL"
    ],
    "license": "http://arxiv.org/licenses/nonexclusive-distrib/1.0/",
    "primary_cat": "cs.LO",
    "submitted_at": "2013-01-29T12:23:26Z",
    "title_canon_sha256": "aa6ce780c0b61bfd30dbe529812d8e9b052f601f9816cf3cc40196984a44e89b"
  },
  "schema_version": "1.0",
  "source": {
    "id": "1301.6905",
    "kind": "arxiv",
    "version": 2
  }
}