Pith Number

pith:CO6427FG

pith:2025:CO6427FGYSSK3QWLFEABTVPL7R

not attested not anchored not stored refs pending

Classifying the complexity of models of arithmetic

David Gonzalez, Dino Rossegger, Mateusz {\L}e{\l}yk, Patryk Szlufik

arxiv:2507.12025 v1 · 2025-07-16 · 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{CO6427FGYSSK3QWLFEABTVPL7R}

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	2026-07-05T11:38:13.233998Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

13bdcd7ca6c4a4adc2cb290019d5ebfc633a87c01a9d5b36ee638debfa4788a7

Aliases

arxiv: 2507.12025 · arxiv_version: 2507.12025v1 · doi: 10.48550/arxiv.2507.12025 · pith_short_12: CO6427FGYSSK · pith_short_16: CO6427FGYSSK3QWL · pith_short_8: CO6427FG

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/CO6427FGYSSK3QWLFEABTVPL7R \
  | 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: 13bdcd7ca6c4a4adc2cb290019d5ebfc633a87c01a9d5b36ee638debfa4788a7

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "aac7c02e1d760845700b5c51a3d26363e6eb55610c1a4b676c70845eda10c04d",
    "cross_cats_sorted": [],
    "license": "http://creativecommons.org/licenses/by/4.0/",
    "primary_cat": "math.LO",
    "submitted_at": "2025-07-16T08:38:18Z",
    "title_canon_sha256": "cb96bb2ec4a367086aa35ad853c31cc395e5e2f8f597524d6271bc226ca07308"
  },
  "schema_version": "1.0",
  "source": {
    "id": "2507.12025",
    "kind": "arxiv",
    "version": 1
  }
}