Pith Number

pith:DOGLXZOB

pith:2013:DOGLXZOBW2ZWP4FCVDEE5CAX43

not attested not anchored not stored refs pending

Unsatisfiable Cores for Constraint Programming

Nicholas Downing, Peter J. Stuckey, Thibaut Feydy

arxiv:1305.1690 v1 · 2013-05-08 · cs.LO · cs.AI

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

Add to your LaTeX paper

\usepackage{pith}
\pithnumber{DOGLXZOBW2ZWP4FCVDEE5CAX43}

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	2026-05-18T03:26:11.536414Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

1b8cbbe5c1b6b367f0a2a8c84e8817e6ff4e7463be2c1b67712313a9cec2e76a

Aliases

arxiv: 1305.1690 · arxiv_version: 1305.1690v1 · doi: 10.48550/arxiv.1305.1690 · pith_short_12: DOGLXZOBW2ZW · pith_short_16: DOGLXZOBW2ZWP4FC · pith_short_8: DOGLXZOB

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/DOGLXZOBW2ZWP4FCVDEE5CAX43 \
  | 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: 1b8cbbe5c1b6b367f0a2a8c84e8817e6ff4e7463be2c1b67712313a9cec2e76a

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "beb71d3cd597e84ee9ad1a48059f728284f41a1601f61a14221a9269e3eaede1",
    "cross_cats_sorted": [
      "cs.AI"
    ],
    "license": "http://arxiv.org/licenses/nonexclusive-distrib/1.0/",
    "primary_cat": "cs.LO",
    "submitted_at": "2013-05-08T01:50:05Z",
    "title_canon_sha256": "b215eb6f9b2be627f6a6b75eb0fb71c0593e1d225b3e59c44da1240736cc91ab"
  },
  "schema_version": "1.0",
  "source": {
    "id": "1305.1690",
    "kind": "arxiv",
    "version": 1
  }
}