Pith Number

pith:BR5NRUKW

pith:2018:BR5NRUKWGH3XQ2VB2MGPLN6OO2

not attested not anchored not stored refs pending

The theories of Baldwin-Shi hypergraphs and their atomic models

Danul K. Gunatilleka

arxiv:1803.01831 v3 · 2018-03-05 · 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{BR5NRUKWGH3XQ2VB2MGPLN6OO2}

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

Merges of Smooth Classes and Their Properties

Receipt and verification

First computed	2026-05-18T00:10:46.716955Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

0c7ad8d15631f7786aa1d30cf5b7ce76958d418e0c7f74487439951a0ddc8e61

Aliases

arxiv: 1803.01831 · arxiv_version: 1803.01831v3 · doi: 10.48550/arxiv.1803.01831 · pith_short_12: BR5NRUKWGH3X · pith_short_16: BR5NRUKWGH3XQ2VB · pith_short_8: BR5NRUKW

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/BR5NRUKWGH3XQ2VB2MGPLN6OO2 \
  | 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: 0c7ad8d15631f7786aa1d30cf5b7ce76958d418e0c7f74487439951a0ddc8e61

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "8355f60cc7c3d58feebba9ae466a4b825fa9fa8e87b0f3749b6daaa579b29d53",
    "cross_cats_sorted": [],
    "license": "http://arxiv.org/licenses/nonexclusive-distrib/1.0/",
    "primary_cat": "math.LO",
    "submitted_at": "2018-03-05T18:50:41Z",
    "title_canon_sha256": "7d3040fd6e616273eaf9e82f423dff2c9a7280e3b0030b44861348386f644dbf"
  },
  "schema_version": "1.0",
  "source": {
    "id": "1803.01831",
    "kind": "arxiv",
    "version": 3
  }
}