Pith Number

pith:AMZ47OW5

pith:2015:AMZ47OW5EHYKKKIMRCARIVPFBZ

not attested not anchored not stored refs pending

Congruence Boolean Lifting Property

Claudia Mure\c{s}an, George Georgescu

arxiv:1502.06907 v2 · 2015-02-24 · math.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{AMZ47OW5EHYKKKIMRCARIVPFBZ}

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	2026-05-18T01:29:38.373524Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

0333cfbadd21f0a5290c88811455e50e6dcbcb578c181c0a171882074ea97a55

Aliases

arxiv: 1502.06907 · arxiv_version: 1502.06907v2 · doi: 10.48550/arxiv.1502.06907 · pith_short_12: AMZ47OW5EHYK · pith_short_16: AMZ47OW5EHYKKKIM · pith_short_8: AMZ47OW5

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/AMZ47OW5EHYKKKIMRCARIVPFBZ \
  | 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: 0333cfbadd21f0a5290c88811455e50e6dcbcb578c181c0a171882074ea97a55

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "1a290c30225db31d42a4cd97bcb3e9871d54c5f6eedbad91fc804424cdcbfc8d",
    "cross_cats_sorted": [],
    "license": "http://arxiv.org/licenses/nonexclusive-distrib/1.0/",
    "primary_cat": "math.LO",
    "submitted_at": "2015-02-24T18:50:15Z",
    "title_canon_sha256": "9f1ccbf9691510ec241598372c01a5e4d2c817a34d970d1c32e465deb4494067"
  },
  "schema_version": "1.0",
  "source": {
    "id": "1502.06907",
    "kind": "arxiv",
    "version": 2
  }
}