Pith Number

pith:FYGCLZ4W

pith:2016:FYGCLZ4W3KBFXZOF6AQZJSX3ZJ

not attested not anchored not stored refs pending

Smooth quotients of bi-elliptic surfaces

Hisao Yoshihara

arxiv:1607.01087 v1 · 2016-07-05 · math.AG

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

Add to your LaTeX paper

\usepackage{pith}
\pithnumber{FYGCLZ4W3KBFXZOF6AQZJSX3ZJ}

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	2026-05-18T01:11:30.179790Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

2e0c25e796da825be5c5f02194cafbca424ea9f8b73be3643e7b44ee964e0f10

Aliases

arxiv: 1607.01087 · arxiv_version: 1607.01087v1 · doi: 10.48550/arxiv.1607.01087 · pith_short_12: FYGCLZ4W3KBF · pith_short_16: FYGCLZ4W3KBFXZOF · pith_short_8: FYGCLZ4W

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/FYGCLZ4W3KBFXZOF6AQZJSX3ZJ \
  | 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: 2e0c25e796da825be5c5f02194cafbca424ea9f8b73be3643e7b44ee964e0f10

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "c39b8e0fcb883d5e8debdd7f09baab4ce684cdd1eb45858e20ba04023330ae4a",
    "cross_cats_sorted": [],
    "license": "http://arxiv.org/licenses/nonexclusive-distrib/1.0/",
    "primary_cat": "math.AG",
    "submitted_at": "2016-07-05T01:14:04Z",
    "title_canon_sha256": "57e2e89f463721117bd11fc8f26a798ca9c8b982fe06c9006a917d2d23ad43dc"
  },
  "schema_version": "1.0",
  "source": {
    "id": "1607.01087",
    "kind": "arxiv",
    "version": 1
  }
}