Pith Number

pith:A765JI5C

pith:2019:A765JI5COROHSH75L5H4JQLYIW

not attested not anchored not stored refs pending

The $a$-number of Certain Hyperelliptic Curves

Farhad Rahmati, Saeed Tafazolian, Vahid Nourozi

arxiv:1902.03672 v2 · 2019-02-10 · math.AC · 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{A765JI5COROHSH75L5H4JQLYIW}

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	2026-05-17T23:50:55.723767Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

07fdd4a3a2745c791ffd5f4fc4c17845a2dab3bba68829fd3fbd42c3a76cb58a

Aliases

arxiv: 1902.03672 · arxiv_version: 1902.03672v2 · doi: 10.48550/arxiv.1902.03672 · pith_short_12: A765JI5COROH · pith_short_16: A765JI5COROHSH75 · pith_short_8: A765JI5C

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/A765JI5COROHSH75L5H4JQLYIW \
  | 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: 07fdd4a3a2745c791ffd5f4fc4c17845a2dab3bba68829fd3fbd42c3a76cb58a

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "3220f43203eafa583cf860dc1dacf2b55652a1a4385fbcd6ea6eb6c83bab093f",
    "cross_cats_sorted": [
      "math.AG"
    ],
    "license": "http://arxiv.org/licenses/nonexclusive-distrib/1.0/",
    "primary_cat": "math.AC",
    "submitted_at": "2019-02-10T21:13:44Z",
    "title_canon_sha256": "cf09a66f9578574272b6c6350fccb6818dfb59dd557b9bc8550b6ca6262066e2"
  },
  "schema_version": "1.0",
  "source": {
    "id": "1902.03672",
    "kind": "arxiv",
    "version": 2
  }
}