Pith Number

pith:4UEHH2O7

pith:2019:4UEHH2O7YAHSXJ2WF3ZLMQE6IU

not attested not anchored not stored refs pending

An o-minimalist view of the group configuration

Ya'acov Peterzil

arxiv:1909.09994 v2 · 2019-09-22 · 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{4UEHH2O7YAHSXJ2WF3ZLMQE6IU}

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.

Cited by

1 paper in Pith

Topologically 1-based T-minimal Structures

Receipt and verification

First computed	2026-07-05T01:06:31.307219Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

e50873e9dfc00f2ba7562ef2b6409e45367b2896fa55fb14ced21b0cfcb4bada

Aliases

arxiv: 1909.09994 · arxiv_version: 1909.09994v2 · doi: 10.48550/arxiv.1909.09994 · pith_short_12: 4UEHH2O7YAHS · pith_short_16: 4UEHH2O7YAHSXJ2W · pith_short_8: 4UEHH2O7

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/4UEHH2O7YAHSXJ2WF3ZLMQE6IU \
  | 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: e50873e9dfc00f2ba7562ef2b6409e45367b2896fa55fb14ced21b0cfcb4bada

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "bfd269730b3493330b6053478f7219efb5fce3f568954987f20b9b37f2ecdcb0",
    "cross_cats_sorted": [],
    "license": "http://arxiv.org/licenses/nonexclusive-distrib/1.0/",
    "primary_cat": "math.LO",
    "submitted_at": "2019-09-22T12:43:26Z",
    "title_canon_sha256": "d64789b756b8eddd1420b483f2bdc39e1a626bab51c1ff217d693b01e4a56b5c"
  },
  "schema_version": "1.0",
  "source": {
    "id": "1909.09994",
    "kind": "arxiv",
    "version": 2
  }
}