Pith Number

pith:X22P444J

pith:2015:X22P444JUL3YZE5ABGJC6QNUGJ

not attested not anchored not stored refs pending

NRCL - A Model Building Approach to the Bernays-Sch\"onfinkel Fragment (Full Paper)

Christoph Weidenbach, G\'abor Alagi

arxiv:1502.05501 v3 · 2015-02-19 · cs.LO

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

Add to your LaTeX paper

\usepackage{pith}
\pithnumber{X22P444JUL3YZE5ABGJC6QNUGJ}

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	2026-05-18T01:36:38.407739Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

beb4fe7389a2f78c93a009922f41b432555727e985fd17076da30f2b831aa70e

Aliases

arxiv: 1502.05501 · arxiv_version: 1502.05501v3 · doi: 10.48550/arxiv.1502.05501 · pith_short_12: X22P444JUL3Y · pith_short_16: X22P444JUL3YZE5A · pith_short_8: X22P444J

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/X22P444JUL3YZE5ABGJC6QNUGJ \
  | 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: beb4fe7389a2f78c93a009922f41b432555727e985fd17076da30f2b831aa70e

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "5e6a04f8a2c560bd853a30236c93edba3800b513dc04a1f7a3b0eb15a6ed0e0a",
    "cross_cats_sorted": [],
    "license": "http://arxiv.org/licenses/nonexclusive-distrib/1.0/",
    "primary_cat": "cs.LO",
    "submitted_at": "2015-02-19T09:05:23Z",
    "title_canon_sha256": "3d958b88ff46acdefc723b57f279aa5dff0616772d5d0a71f60ecdce9f336f0b"
  },
  "schema_version": "1.0",
  "source": {
    "id": "1502.05501",
    "kind": "arxiv",
    "version": 3
  }
}