Pith Number

pith:NQJSFNQB

pith:2010:NQJSFNQBIBKCEL7RSIISW6AOJ4

not attested not anchored not stored refs pending

Quick cut-elimination for strictly positive cuts

Toshiyasu Arai

arxiv:1010.4111 v2 · 2010-10-20 · 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{NQJSFNQBIBKCEL7RSIISW6AOJ4}

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	2026-05-18T03:28:30.851922Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

6c1322b6014054222ff192112b780e4f3b94c9685470212fac046b6887a1427f

Aliases

arxiv: 1010.4111 · arxiv_version: 1010.4111v2 · doi: 10.48550/arxiv.1010.4111 · pith_short_12: NQJSFNQBIBKC · pith_short_16: NQJSFNQBIBKCEL7R · pith_short_8: NQJSFNQB

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/NQJSFNQBIBKCEL7RSIISW6AOJ4 \
  | 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: 6c1322b6014054222ff192112b780e4f3b94c9685470212fac046b6887a1427f

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "329d25ed4ea302c5d9883d027588715c72d79b97efadc71624ed65ec10d91de9",
    "cross_cats_sorted": [],
    "license": "http://arxiv.org/licenses/nonexclusive-distrib/1.0/",
    "primary_cat": "math.LO",
    "submitted_at": "2010-10-20T06:54:14Z",
    "title_canon_sha256": "25967fd284e936b7fa5ac9c1c90deecd288118ea927bbd1519666239dac44923"
  },
  "schema_version": "1.0",
  "source": {
    "id": "1010.4111",
    "kind": "arxiv",
    "version": 2
  }
}