Pith Number

pith:EVPTBUJM

pith:2010:EVPTBUJMVNN3OOX3ISZUVINJFW

not attested not anchored not stored refs pending

Wellfoundedness proofs by means of non-monotonic inductive definitions II: first order operators

Toshiyasu Arai

arxiv:1005.2007 v1 · 2010-05-12 · 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{EVPTBUJMVNN3OOX3ISZUVINJFW}

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	2026-05-18T03:28:30.862392Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

255f30d12cab5bb73afb44b34aa1a92dad8eabd65e31208f930b16a2ac2d3157

Aliases

arxiv: 1005.2007 · arxiv_version: 1005.2007v1 · doi: 10.48550/arxiv.1005.2007 · pith_short_12: EVPTBUJMVNN3 · pith_short_16: EVPTBUJMVNN3OOX3 · pith_short_8: EVPTBUJM

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/EVPTBUJMVNN3OOX3ISZUVINJFW \
  | 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: 255f30d12cab5bb73afb44b34aa1a92dad8eabd65e31208f930b16a2ac2d3157

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "f9788e64ff67d24a62d9bbc77f42ef885a404ed31394af8094a6832fce81df3e",
    "cross_cats_sorted": [],
    "license": "http://arxiv.org/licenses/nonexclusive-distrib/1.0/",
    "primary_cat": "math.LO",
    "submitted_at": "2010-05-12T07:07:17Z",
    "title_canon_sha256": "3ea253b2ec85a2bc0b7a5d4a424d56bedcb94a6775ee88917f93097904606a0b"
  },
  "schema_version": "1.0",
  "source": {
    "id": "1005.2007",
    "kind": "arxiv",
    "version": 1
  }
}