Pith Number

pith:NL45JT3P

pith:2012:NL45JT3PPIURBMX5MIU7MTHMTY

not attested not anchored not stored refs pending

On the canonical base property

Anand Pillay, Daniel Palacin, Ehud Hrushovski

arxiv:1205.5981 v1 · 2012-05-27 · 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{NL45JT3PPIURBMX5MIU7MTHMTY}

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	2026-05-18T03:54:48.616656Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

6af9d4cf6f7a2910b2fd6229f64cec9e01451dfc8f5c672b1f1e499a7d258ec7

Aliases

arxiv: 1205.5981 · arxiv_version: 1205.5981v1 · doi: 10.48550/arxiv.1205.5981 · pith_short_12: NL45JT3PPIUR · pith_short_16: NL45JT3PPIURBMX5 · pith_short_8: NL45JT3P

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/NL45JT3PPIURBMX5MIU7MTHMTY \
  | 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: 6af9d4cf6f7a2910b2fd6229f64cec9e01451dfc8f5c672b1f1e499a7d258ec7

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "c74a05ea492b0be9bed53ea0ddc87be9e792373953ae4a2f7df17f4f2f8f1afb",
    "cross_cats_sorted": [],
    "license": "http://arxiv.org/licenses/nonexclusive-distrib/1.0/",
    "primary_cat": "math.LO",
    "submitted_at": "2012-05-27T15:55:16Z",
    "title_canon_sha256": "a62a975d591356aa437a1d23356ed48d08c7294f56a3da5a6d298b6decb91c64"
  },
  "schema_version": "1.0",
  "source": {
    "id": "1205.5981",
    "kind": "arxiv",
    "version": 1
  }
}