Pith Number

pith:4AINNUPE

pith:2018:4AINNUPE52OOJ226QSGQMY4OSS

not attested not anchored not stored refs pending

On the geodesic diameter of surfaces with involutive isometry

YU.G. Nikonorov

arxiv:1811.01173 v1 · 2018-11-03 · math.DG · math.HO · 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{4AINNUPE52OOJ226QSGQMY4OSS}

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	2026-05-18T00:01:35.149331Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

e010d6d1e4ee9ce4eb5e848d06638e94abf750234e49240bcb910053c147bbda

Aliases

arxiv: 1811.01173 · arxiv_version: 1811.01173v1 · doi: 10.48550/arxiv.1811.01173 · pith_short_12: 4AINNUPE52OO · pith_short_16: 4AINNUPE52OOJ226 · pith_short_8: 4AINNUPE

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/4AINNUPE52OOJ226QSGQMY4OSS \
  | 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: e010d6d1e4ee9ce4eb5e848d06638e94abf750234e49240bcb910053c147bbda

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "0a2856cd5c786c112482b23605e5d1d433fed6b4595276bdd985e578e4456204",
    "cross_cats_sorted": [
      "math.HO",
      "math.MG"
    ],
    "license": "http://arxiv.org/licenses/nonexclusive-distrib/1.0/",
    "primary_cat": "math.DG",
    "submitted_at": "2018-11-03T08:09:34Z",
    "title_canon_sha256": "5e684be21ef3ce188418e3ae0088ee15a2b0eb237bf92b4a408387fbf40f7e6f"
  },
  "schema_version": "1.0",
  "source": {
    "id": "1811.01173",
    "kind": "arxiv",
    "version": 1
  }
}