Pith Number

pith:2NQUYRAA

pith:2026:2NQUYRAARMOMM23C2NRTWDCSIA

not attested not anchored not stored refs pending

A proof system for the positive fragment of GL

Yoshihito Tanaka

arxiv:2605.19349 v1 · 2026-05-19 · 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{2NQUYRAARMOMM23C2NRTWDCSIA}

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	2026-05-20T01:05:40.858497Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

d3614c44008b1cc66b62d3633b0c524022b03b2861fd6a5e96a470cb52b223a2

Aliases

arxiv: 2605.19349 · arxiv_version: 2605.19349v1 · doi: 10.48550/arxiv.2605.19349 · pith_short_12: 2NQUYRAARMOM · pith_short_16: 2NQUYRAARMOMM23C · pith_short_8: 2NQUYRAA

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/2NQUYRAARMOMM23C2NRTWDCSIA \
  | 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: d3614c44008b1cc66b62d3633b0c524022b03b2861fd6a5e96a470cb52b223a2

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "9107c3b4ac1885455be558c522b00f88e38ac0e18b43eece8566f3cca3482a17",
    "cross_cats_sorted": [],
    "license": "http://arxiv.org/licenses/nonexclusive-distrib/1.0/",
    "primary_cat": "math.LO",
    "submitted_at": "2026-05-19T04:37:26Z",
    "title_canon_sha256": "d9f78060c0b776553bcc888a81f92d131b1b6799334808dcc9fe590cb2f41c18"
  },
  "schema_version": "1.0",
  "source": {
    "id": "2605.19349",
    "kind": "arxiv",
    "version": 1
  }
}