Pith Number

pith:CM66SBLN

pith:2010:CM66SBLNN55AL4Q7KZPPSDGTS3

not attested not anchored not stored refs pending

Constraint Propagation for First-Order Logic and Inductive Definitions

Johan Wittocx, Marc Denecker, Maurice Bruynooghe

arxiv:1008.2121 v2 · 2010-08-12 · 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{CM66SBLNN55AL4Q7KZPPSDGTS3}

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	2026-05-18T04:18:43.780074Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

133de9056d6f7a05f21f565ef90cd396f319194c7416929d592bb240a0323e77

Aliases

arxiv: 1008.2121 · arxiv_version: 1008.2121v2 · doi: 10.48550/arxiv.1008.2121 · pith_short_12: CM66SBLNN55A · pith_short_16: CM66SBLNN55AL4Q7 · pith_short_8: CM66SBLN

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/CM66SBLNN55AL4Q7KZPPSDGTS3 \
  | 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: 133de9056d6f7a05f21f565ef90cd396f319194c7416929d592bb240a0323e77

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "ec2d6ab68c5127250203b5e79ca74e81faf789bed1b1e9f1b209635a2f63da53",
    "cross_cats_sorted": [
      "cs.AI"
    ],
    "license": "http://arxiv.org/licenses/nonexclusive-distrib/1.0/",
    "primary_cat": "cs.LO",
    "submitted_at": "2010-08-12T14:40:04Z",
    "title_canon_sha256": "37018166e7cf2cd0dbfaef87f25964b160843300cfc961b09fc2a54134b935cf"
  },
  "schema_version": "1.0",
  "source": {
    "id": "1008.2121",
    "kind": "arxiv",
    "version": 2
  }
}