Pith Number

pith:BCPK5I2P

pith:2011:BCPK5I2POXE2XBPBNRTBN3EXSV

not attested not anchored not stored refs pending

Representation Sharing for Prolog

Bart Demoen, Phuong-Lan Nguyen

arxiv:1106.1311 v2 · 2011-06-07 · 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{BCPK5I2POXE2XBPBNRTBN3EXSV}

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	2026-05-18T04:19:04.096120Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

089eaea34f75c9ab85e16c6616ec979560b22e1cfe68b39704e943863933a6cb

Aliases

arxiv: 1106.1311 · arxiv_version: 1106.1311v2 · doi: 10.48550/arxiv.1106.1311 · pith_short_12: BCPK5I2POXE2 · pith_short_16: BCPK5I2POXE2XBPB · pith_short_8: BCPK5I2P

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/BCPK5I2POXE2XBPBNRTBN3EXSV \
  | 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: 089eaea34f75c9ab85e16c6616ec979560b22e1cfe68b39704e943863933a6cb

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "c2a0ee76aa5cc7049c28ef97191df6e64c50ce1e9564e41954756effb2a37347",
    "cross_cats_sorted": [],
    "license": "http://arxiv.org/licenses/nonexclusive-distrib/1.0/",
    "primary_cat": "cs.PL",
    "submitted_at": "2011-06-07T10:34:53Z",
    "title_canon_sha256": "38263a8ae41506cbd7bb6776512b1927ea2bbb33391a9c1d8b02afff3c4d2d73"
  },
  "schema_version": "1.0",
  "source": {
    "id": "1106.1311",
    "kind": "arxiv",
    "version": 2
  }
}