Pith Number

pith:ZMMPYMGN

pith:2014:ZMMPYMGNB43YKQF6EROP5RMLXI

not attested not anchored not stored refs pending

A point-free approach to L-Surjunctivity and Stable Finiteness

Simone Virili

arxiv:1410.1643 v4 · 2014-10-07 · math.RA

Open paper page JSON Open Graph Bundle Merged state Verified badge What is a Pith Number?

Add to your LaTeX paper

\usepackage{pith}
\pithnumber{ZMMPYMGNB43YKQF6EROP5RMLXI}

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	2026-05-18T00:26:02.552504Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

cb18fc30cd0f378540be245cfec58bba2fe56acdfd7aec3e34253833c5b3b93a

Aliases

arxiv: 1410.1643 · arxiv_version: 1410.1643v4 · doi: 10.48550/arxiv.1410.1643 · pith_short_12: ZMMPYMGNB43Y · pith_short_16: ZMMPYMGNB43YKQF6 · pith_short_8: ZMMPYMGN

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/ZMMPYMGNB43YKQF6EROP5RMLXI \
  | 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: cb18fc30cd0f378540be245cfec58bba2fe56acdfd7aec3e34253833c5b3b93a

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "3429dbf231f37f0e8b622c1c5cc75bcc271eda286631f7b476bc0200c3f0eb49",
    "cross_cats_sorted": [],
    "license": "http://arxiv.org/licenses/nonexclusive-distrib/1.0/",
    "primary_cat": "math.RA",
    "submitted_at": "2014-10-07T08:50:56Z",
    "title_canon_sha256": "20902ff29c137bb202d520910c58431de2a139a2adc7d476eecd99a09b1b5bd8"
  },
  "schema_version": "1.0",
  "source": {
    "id": "1410.1643",
    "kind": "arxiv",
    "version": 4
  }
}