Pith Number

pith:VCEL7DRS

pith:2014:VCEL7DRSCPU7QMYWVDA4D2ZQYU

not attested not anchored not stored refs pending

Constraint Handling Rules with Multiset Comprehension Patterns

Edmund S. L. Lam, Iliano Cervesato

arxiv:1406.2121 v1 · 2014-06-09 · cs.PL

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

Add to your LaTeX paper

\usepackage{pith}
\pithnumber{VCEL7DRSCPU7QMYWVDA4D2ZQYU}

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	2026-05-18T02:50:11.546835Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

a888bf8e3213e9f83316a8c1c1eb30c52b8f5207113ae0e2414cbf7ea5d7d394

Aliases

arxiv: 1406.2121 · arxiv_version: 1406.2121v1 · doi: 10.48550/arxiv.1406.2121 · pith_short_12: VCEL7DRSCPU7 · pith_short_16: VCEL7DRSCPU7QMYW · pith_short_8: VCEL7DRS

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/VCEL7DRSCPU7QMYWVDA4D2ZQYU \
  | 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: a888bf8e3213e9f83316a8c1c1eb30c52b8f5207113ae0e2414cbf7ea5d7d394

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "1e3968606eb1e597cc402d31e158173e0e2f02abfa9b22d46b97cc2c56106609",
    "cross_cats_sorted": [],
    "license": "http://arxiv.org/licenses/nonexclusive-distrib/1.0/",
    "primary_cat": "cs.PL",
    "submitted_at": "2014-06-09T10:03:26Z",
    "title_canon_sha256": "ec73ab6a2ff65027df434a7b1fb7d114c67d44ecd07ae08cd46acd8098128052"
  },
  "schema_version": "1.0",
  "source": {
    "id": "1406.2121",
    "kind": "arxiv",
    "version": 1
  }
}