Pith Number

pith:BQMCJOSO

pith:2018:BQMCJOSOQCRH5CR4DGH7XFUVC5

not attested not anchored not stored refs pending

On generalized Berwald surfaces with locally symmetric fourth root metrics

Cs. Vincze, M. Ol\'ah, T. Khoshdani

arxiv:1808.10855 v1 · 2018-08-30 · math.GM

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

Add to your LaTeX paper

\usepackage{pith}
\pithnumber{BQMCJOSOQCRH5CR4DGH7XFUVC5}

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	2026-05-18T00:06:44.452010Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

0c1824ba4e80a27e8a3c198ffb9695174ba5c995b80f1606a6e79cb02e38a9c4

Aliases

arxiv: 1808.10855 · arxiv_version: 1808.10855v1 · doi: 10.48550/arxiv.1808.10855 · pith_short_12: BQMCJOSOQCRH · pith_short_16: BQMCJOSOQCRH5CR4 · pith_short_8: BQMCJOSO

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/BQMCJOSOQCRH5CR4DGH7XFUVC5 \
  | 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: 0c1824ba4e80a27e8a3c198ffb9695174ba5c995b80f1606a6e79cb02e38a9c4

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "f842601832880c2eb29251336cb49dd1e51a2ebe1cd80e8dbe8263611959aff9",
    "cross_cats_sorted": [],
    "license": "http://arxiv.org/licenses/nonexclusive-distrib/1.0/",
    "primary_cat": "math.GM",
    "submitted_at": "2018-08-30T08:00:53Z",
    "title_canon_sha256": "2ea13601435489719ff2426f4450dd663692580af5c4d359ea764e12434054d0"
  },
  "schema_version": "1.0",
  "source": {
    "id": "1808.10855",
    "kind": "arxiv",
    "version": 1
  }
}