Pith Number

pith:DHJZY7EZ

pith:2019:DHJZY7EZYYNJW65PCFO5TU4QAL

not attested not anchored not stored refs pending

Cosmology of Plane Geometry

Alexander Skutin

arxiv:1908.05084 v2 · 2019-08-14 · math.MG

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

Add to your LaTeX paper

\usepackage{pith}
\pithnumber{DHJZY7EZYYNJW65PCFO5TU4QAL}

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	2026-07-05T02:47:37.933651Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

19d39c7c99c61a9b7baf115dd9d39002eb3f473caa5f6d5f358a2eab823d3dd7

Aliases

arxiv: 1908.05084 · arxiv_version: 1908.05084v2 · doi: 10.48550/arxiv.1908.05084 · pith_short_12: DHJZY7EZYYNJ · pith_short_16: DHJZY7EZYYNJW65P · pith_short_8: DHJZY7EZ

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/DHJZY7EZYYNJW65PCFO5TU4QAL \
  | 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: 19d39c7c99c61a9b7baf115dd9d39002eb3f473caa5f6d5f358a2eab823d3dd7

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "de0210f2c0f16d6beece224c4ff2bed5de143ee24a676bc9622ce5df4cfb3180",
    "cross_cats_sorted": [],
    "license": "http://creativecommons.org/licenses/by/4.0/",
    "primary_cat": "math.MG",
    "submitted_at": "2019-08-14T11:55:39Z",
    "title_canon_sha256": "19c4df48ca5cd43da31cf65e5816c9b605c4f1b7ff301b529893730678679178"
  },
  "schema_version": "1.0",
  "source": {
    "id": "1908.05084",
    "kind": "arxiv",
    "version": 2
  }
}