Pith Number

pith:D6O46WIA

pith:2012:D6O46WIAMS3BKPFJZ3KWEBTSSR

not attested not anchored not stored refs pending

LPC(ID): A Sequent Calculus Proof System for Propositional Logic Extended with Inductive Definitions

Johan Wittocx, Marc Denecker, Ping Hou

arxiv:1207.2534 v1 · 2012-07-11 · 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{D6O46WIAMS3BKPFJZ3KWEBTSSR}

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	2026-05-18T03:51:15.196889Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

1f9dcf590064b6153ca9ced5620672947d8f38734b789f66907c5043077bf4fa

Aliases

arxiv: 1207.2534 · arxiv_version: 1207.2534v1 · doi: 10.48550/arxiv.1207.2534 · pith_short_12: D6O46WIAMS3B · pith_short_16: D6O46WIAMS3BKPFJ · pith_short_8: D6O46WIA

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/D6O46WIAMS3BKPFJZ3KWEBTSSR \
  | 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: 1f9dcf590064b6153ca9ced5620672947d8f38734b789f66907c5043077bf4fa

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "28f93759eb01f90dd2b2ada21c3b61f6edc4fcec9499763e8262b12507282227",
    "cross_cats_sorted": [
      "cs.AI"
    ],
    "license": "http://arxiv.org/licenses/nonexclusive-distrib/1.0/",
    "primary_cat": "cs.LO",
    "submitted_at": "2012-07-11T03:01:33Z",
    "title_canon_sha256": "d730675645b946ddd1f5af0e0e15b14aa789825316665d3c47db60b65517924a"
  },
  "schema_version": "1.0",
  "source": {
    "id": "1207.2534",
    "kind": "arxiv",
    "version": 1
  }
}