Pith Number

pith:D4X7TBIZ

pith:2013:D4X7TBIZ37LA2KJ3SUFI7RSCRG

not attested not anchored not stored refs pending

Explicit Galois obstruction and descent for hyperelliptic curves with tamely cyclic reduced automorphism group

Christophe Ritzenthaler, Jeroen Sijsling, Reynald Lercier

arxiv:1301.0695 v2 · 2013-01-04 · math.AG · math.NT

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

Add to your LaTeX paper

\usepackage{pith}
\pithnumber{D4X7TBIZ37LA2KJ3SUFI7RSCRG}

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	2026-05-18T00:53:21.400303Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

1f2ff98519dfd60d293b950a8fc64289a3dd3d561e4f121843639afcfa9ff129

Aliases

arxiv: 1301.0695 · arxiv_version: 1301.0695v2 · doi: 10.48550/arxiv.1301.0695 · pith_short_12: D4X7TBIZ37LA · pith_short_16: D4X7TBIZ37LA2KJ3 · pith_short_8: D4X7TBIZ

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/D4X7TBIZ37LA2KJ3SUFI7RSCRG \
  | 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: 1f2ff98519dfd60d293b950a8fc64289a3dd3d561e4f121843639afcfa9ff129

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "60910fb710ced2a08e0ffd2512a49148f47e73c43d5491a99f60d5455b48f5bc",
    "cross_cats_sorted": [
      "math.NT"
    ],
    "license": "http://arxiv.org/licenses/nonexclusive-distrib/1.0/",
    "primary_cat": "math.AG",
    "submitted_at": "2013-01-04T10:24:07Z",
    "title_canon_sha256": "8ce57cde5d9820d869afa36ec97b7880927676d03b1e9d013eed65a43a2992dd"
  },
  "schema_version": "1.0",
  "source": {
    "id": "1301.0695",
    "kind": "arxiv",
    "version": 2
  }
}