Pith Number

pith:U2VOQAFT

pith:2005:U2VOQAFTEKEAEMLW2B566E7RQB

not attested not anchored not stored refs pending

Embedding Defeasible Logic into Logic Programming

David Billington, Grigoris Antoniou, Guido Governatori, Michael J. Maher

arxiv:cs/0511055 v1 · 2005-11-15 · cs.LO

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

Add to your LaTeX paper

\usepackage{pith}
\pithnumber{U2VOQAFTEKEAEMLW2B566E7RQB}

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	2026-05-18T03:52:39.169815Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

a6aae800b32288023176d07bef13f1805ea25a673589072a228acb823f221732

Aliases

arxiv: cs/0511055 · arxiv_version: cs/0511055v1 · doi: 10.48550/arxiv.cs/0511055 · pith_short_12: U2VOQAFTEKEA · pith_short_16: U2VOQAFTEKEAEMLW · pith_short_8: U2VOQAFT

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/U2VOQAFTEKEAEMLW2B566E7RQB \
  | 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: a6aae800b32288023176d07bef13f1805ea25a673589072a228acb823f221732

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "c275a0dabd9996ab6155ec712be42da67a6ce531f016506a323745f86868841b",
    "cross_cats_sorted": [],
    "license": "",
    "primary_cat": "cs.LO",
    "submitted_at": "2005-11-15T10:39:38Z",
    "title_canon_sha256": "ea73598062f0f1b6ca21298e4fcce64fa15ba5c1a23c1668d704cca881682456"
  },
  "schema_version": "1.0",
  "source": {
    "id": "cs/0511055",
    "kind": "arxiv",
    "version": 1
  }
}