Pith Number

pith:HLRFT43J

pith:2018:HLRFT43JMHAZQTO5UIDCHDCWLY

not attested not anchored not stored refs pending

Extending automorphisms of the genus-2 surface over the 3-sphere

Kenta Funayoshi, Yuya Koda

arxiv:1803.05116 v3 · 2018-03-14 · math.GT

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

Add to your LaTeX paper

\usepackage{pith}
\pithnumber{HLRFT43JMHAZQTO5UIDCHDCWLY}

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	2026-05-17T23:47:44.354765Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

3ae259f36961c1984ddda206238c565e34457b954bfa9b882940aa258ef74de1

Aliases

arxiv: 1803.05116 · arxiv_version: 1803.05116v3 · doi: 10.48550/arxiv.1803.05116 · pith_short_12: HLRFT43JMHAZ · pith_short_16: HLRFT43JMHAZQTO5 · pith_short_8: HLRFT43J

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/HLRFT43JMHAZQTO5UIDCHDCWLY \
  | 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: 3ae259f36961c1984ddda206238c565e34457b954bfa9b882940aa258ef74de1

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "18b0ed1d9f97cab7730f1667007216983d3eec9b18284701fd5a25bc1f502ec7",
    "cross_cats_sorted": [],
    "license": "http://arxiv.org/licenses/nonexclusive-distrib/1.0/",
    "primary_cat": "math.GT",
    "submitted_at": "2018-03-14T02:56:23Z",
    "title_canon_sha256": "53f56a3550e714654555f18154471c37bc2cd2cbd21bf544d413f68cbca44a34"
  },
  "schema_version": "1.0",
  "source": {
    "id": "1803.05116",
    "kind": "arxiv",
    "version": 3
  }
}