Pith Number

pith:QOZVIRA7

pith:2021:QOZVIRA7KTGWAIM3ZSSEJMJZQP

not attested not anchored not stored refs pending

Finite sets, mappings, cardinals, and arithmetic in intuitionistic New Foundations

Michael Beeson

arxiv:2104.00506 v7 · 2021-03-31 · 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{QOZVIRA7KTGWAIM3ZSSEJMJZQP}

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	2026-06-08T01:03:39.503920Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

83b354441f54cd60219bcca444b13983e7292ebb5331c0298e2a30c9457c5b88

Aliases

arxiv: 2104.00506 · arxiv_version: 2104.00506v7 · doi: 10.48550/arxiv.2104.00506 · pith_short_12: QOZVIRA7KTGW · pith_short_16: QOZVIRA7KTGWAIM3 · pith_short_8: QOZVIRA7

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/QOZVIRA7KTGWAIM3ZSSEJMJZQP \
  | 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: 83b354441f54cd60219bcca444b13983e7292ebb5331c0298e2a30c9457c5b88

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "132558628b4769b4f21da9deae4fafc21e5365ec7a68d7c00f9041f0da046d62",
    "cross_cats_sorted": [],
    "license": "http://creativecommons.org/licenses/by-nc-nd/4.0/",
    "primary_cat": "math.LO",
    "submitted_at": "2021-03-31T16:55:17Z",
    "title_canon_sha256": "ae325a4f158846039c2e3293c001e7f794d0688847435b91579b489edaec83e8"
  },
  "schema_version": "1.0",
  "source": {
    "id": "2104.00506",
    "kind": "arxiv",
    "version": 7
  }
}