Pith Number

pith:2IAV7EGA

pith:2013:2IAV7EGAUIPLNWO547D4UXI6QO

not attested not anchored not stored refs pending

Torsion in kernels of induced maps on divisor class groups

Sandra Spiroff, Sean Sather-Wagstaff

arxiv:1302.6552 v1 · 2013-02-26 · math.AC

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

Add to your LaTeX paper

\usepackage{pith}
\pithnumber{2IAV7EGAUIPLNWO547D4UXI6QO}

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	2026-05-18T03:32:28.939006Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

d2015f90c0a21eb6d9dde7c7ca5d1e83a901535c597323a7fc958b099de85345

Aliases

arxiv: 1302.6552 · arxiv_version: 1302.6552v1 · doi: 10.48550/arxiv.1302.6552 · pith_short_12: 2IAV7EGAUIPL · pith_short_16: 2IAV7EGAUIPLNWO5 · pith_short_8: 2IAV7EGA

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/2IAV7EGAUIPLNWO547D4UXI6QO \
  | 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: d2015f90c0a21eb6d9dde7c7ca5d1e83a901535c597323a7fc958b099de85345

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "8ae0a57e9de30bc29c4d60ae262b9e3e796418bd235da0a194f3a682374d84d1",
    "cross_cats_sorted": [],
    "license": "http://arxiv.org/licenses/nonexclusive-distrib/1.0/",
    "primary_cat": "math.AC",
    "submitted_at": "2013-02-26T19:37:02Z",
    "title_canon_sha256": "34a2857887b9f3ef16f2e5d1ee717122ce30a98603cab0acf6d095cba5772e61"
  },
  "schema_version": "1.0",
  "source": {
    "id": "1302.6552",
    "kind": "arxiv",
    "version": 1
  }
}