Pith Number

pith:5QNXLXZW

pith:2012:5QNXLXZWRWFXUNO2MRDPDVVMXV

not attested not anchored not stored refs pending

Ample Hierarchy

Amador Martin-Pizarro, Andreas Baudisch, Martin Ziegler

arxiv:1210.2552 v4 · 2012-10-09 · 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{5QNXLXZWRWFXUNO2MRDPDVVMXV}

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	2026-05-18T03:15:18.661652Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

ec1b75df368d8b7a35da6446f1d6acbd6ea58b1d24c30f356066d9b603125ef9

Aliases

arxiv: 1210.2552 · arxiv_version: 1210.2552v4 · doi: 10.48550/arxiv.1210.2552 · pith_short_12: 5QNXLXZWRWFX · pith_short_16: 5QNXLXZWRWFXUNO2 · pith_short_8: 5QNXLXZW

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/5QNXLXZWRWFXUNO2MRDPDVVMXV \
  | 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: ec1b75df368d8b7a35da6446f1d6acbd6ea58b1d24c30f356066d9b603125ef9

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "a496780eb9ec358cbf816c5e723a1d2529c4533d7580b2286874ed72a79141c9",
    "cross_cats_sorted": [],
    "license": "http://arxiv.org/licenses/nonexclusive-distrib/1.0/",
    "primary_cat": "math.LO",
    "submitted_at": "2012-10-09T10:33:39Z",
    "title_canon_sha256": "8b60d51ff716ca071a303c6f1e7b69bf3ec81db4e84abd86d16ae4cbcef27dfc"
  },
  "schema_version": "1.0",
  "source": {
    "id": "1210.2552",
    "kind": "arxiv",
    "version": 4
  }
}