Pith Number

pith:4IC2H4PT

pith:2011:4IC2H4PTBCKURD7UTOBGI3ZDFI

not attested not anchored not stored refs pending

Prym varieties of double coverings of elliptic curves

Juan Carlos Naranjo, Valeria Ornella Marcucci

arxiv:1111.3340 v1 · 2011-11-14 · 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{4IC2H4PTBCKURD7UTOBGI3ZDFI}

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	2026-05-18T04:08:22.523244Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

e205a3f1f30895488ff49b82646f232a014eb31d06472e5d3dfbdfdda185d2d8

Aliases

arxiv: 1111.3340 · arxiv_version: 1111.3340v1 · doi: 10.48550/arxiv.1111.3340 · pith_short_12: 4IC2H4PTBCKU · pith_short_16: 4IC2H4PTBCKURD7U · pith_short_8: 4IC2H4PT

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/4IC2H4PTBCKURD7UTOBGI3ZDFI \
  | 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: e205a3f1f30895488ff49b82646f232a014eb31d06472e5d3dfbdfdda185d2d8

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "9ded35777fffd6fb2bea163a4878198fcae88b0f598df521a6e7837d5d2dfdc8",
    "cross_cats_sorted": [],
    "license": "http://arxiv.org/licenses/nonexclusive-distrib/1.0/",
    "primary_cat": "math.AG",
    "submitted_at": "2011-11-14T20:01:45Z",
    "title_canon_sha256": "238ecf52e63f00f79b0cc25d309439800406f0950421ee02bc24e5dfde87b6b9"
  },
  "schema_version": "1.0",
  "source": {
    "id": "1111.3340",
    "kind": "arxiv",
    "version": 1
  }
}