Pith Number

pith:X7ACLPZF

pith:2011:X7ACLPZF3UO3STL4G2W5RM6FLD

not attested not anchored not stored refs pending

The Deterministic Part of IPC-4: An Overview

J. Hoffmann, S. Edelkamp

arxiv:1109.5663 v1 · 2011-09-26 · 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{X7ACLPZF3UO3STL4G2W5RM6FLD}

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	2026-05-18T04:12:19.048858Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

bfc025bf25dd1db94d7c36add8b3c558d3f3068d6ee920e56d5e91d35da374eb

Aliases

arxiv: 1109.5663 · arxiv_version: 1109.5663v1 · doi: 10.48550/arxiv.1109.5663 · pith_short_12: X7ACLPZF3UO3 · pith_short_16: X7ACLPZF3UO3STL4 · pith_short_8: X7ACLPZF

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/X7ACLPZF3UO3STL4G2W5RM6FLD \
  | 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: bfc025bf25dd1db94d7c36add8b3c558d3f3068d6ee920e56d5e91d35da374eb

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "19ab1a77640ab8b87438b4304f5c3c218a00e34844744f3e82d059f63d8079d3",
    "cross_cats_sorted": [],
    "license": "http://arxiv.org/licenses/nonexclusive-distrib/1.0/",
    "primary_cat": "cs.AI",
    "submitted_at": "2011-09-26T18:27:26Z",
    "title_canon_sha256": "32409c1fdb890f0b848b5c72eeb3c77290da0c4c731a49d76d86533fb2a6db55"
  },
  "schema_version": "1.0",
  "source": {
    "id": "1109.5663",
    "kind": "arxiv",
    "version": 1
  }
}