Pith Number

pith:I7NEKZUN

pith:2013:I7NEKZUNHAK4SWTOEPONMKXVWA

not attested not anchored not stored refs pending

LP=>: Extending LP with a strong conditional operator

Nick Thomas

arxiv:1304.6467 v1 · 2013-04-24 · 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{I7NEKZUNHAK4SWTOEPONMKXVWA}

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	2026-05-18T03:27:13.026267Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

47da45668d3815c95a6e23dcd62af5b026bfb2cd67f7fe51cf487a63768cd6c3

Aliases

arxiv: 1304.6467 · arxiv_version: 1304.6467v1 · doi: 10.48550/arxiv.1304.6467 · pith_short_12: I7NEKZUNHAK4 · pith_short_16: I7NEKZUNHAK4SWTO · pith_short_8: I7NEKZUN

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/I7NEKZUNHAK4SWTOEPONMKXVWA \
  | 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: 47da45668d3815c95a6e23dcd62af5b026bfb2cd67f7fe51cf487a63768cd6c3

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "7ad291068f6460aba9c6fc6e71414a1cd6573741b5f1512f7542e54fafaebdc3",
    "cross_cats_sorted": [],
    "license": "http://arxiv.org/licenses/nonexclusive-distrib/1.0/",
    "primary_cat": "math.LO",
    "submitted_at": "2013-04-24T02:35:55Z",
    "title_canon_sha256": "6636a39222003d7b4212c2466cebb8ddb090fa4e9c340b98dafbfc382bbbfd2f"
  },
  "schema_version": "1.0",
  "source": {
    "id": "1304.6467",
    "kind": "arxiv",
    "version": 1
  }
}