Pith Number

pith:OB4FOWFQ

pith:2017:OB4FOWFQLABXU2EEEH4KIXEJXH

not attested not anchored not stored refs pending

Amazing examples of nonrational smooth spectral surfaces

Alexander Zheglov, Viktor S. Kulikov

arxiv:1710.05991 v2 · 2017-10-16 · math.AG · math-ph · math.MP

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

Add to your LaTeX paper

\usepackage{pith}
\pithnumber{OB4FOWFQLABXU2EEEH4KIXEJXH}

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	2026-05-18T00:24:54.318073Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

70785758b058037a688421f8a45c89b9e9337a7737808e67bd73bcda012d743a

Aliases

arxiv: 1710.05991 · arxiv_version: 1710.05991v2 · doi: 10.48550/arxiv.1710.05991 · pith_short_12: OB4FOWFQLABX · pith_short_16: OB4FOWFQLABXU2EE · pith_short_8: OB4FOWFQ

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/OB4FOWFQLABXU2EEEH4KIXEJXH \
  | 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: 70785758b058037a688421f8a45c89b9e9337a7737808e67bd73bcda012d743a

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "f835c862cab1fdeacaa38751c7678aaf653b1005538ddc54b557c43bfe0fca73",
    "cross_cats_sorted": [
      "math-ph",
      "math.MP"
    ],
    "license": "http://arxiv.org/licenses/nonexclusive-distrib/1.0/",
    "primary_cat": "math.AG",
    "submitted_at": "2017-10-16T20:24:31Z",
    "title_canon_sha256": "63616f036fc81b3e178d991197b65350c33b27e96fd41eb9e63e076c9a82ff38"
  },
  "schema_version": "1.0",
  "source": {
    "id": "1710.05991",
    "kind": "arxiv",
    "version": 2
  }
}