Pith Number

pith:FOKGCJLD

pith:2023:FOKGCJLDCDOLNKNXJUDIXBP4WL

not attested not anchored not stored refs pending

Computing isogeny classes of typical principally polarized abelian surfaces over the rationals

Edgar Costa, Jean Kieffer, Raymond van Bommel, Shiva Chidambaram

arxiv:2301.10118 v2 · 2023-01-24 · math.NT · 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{FOKGCJLDCDOLNKNXJUDIXBP4WL}

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	2026-07-05T06:34:46.983083Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

2b9461256310dcb6a9b74d068b85fcb2eee6fbc4f0f3d0e09e23881882a4e50b

Aliases

arxiv: 2301.10118 · arxiv_version: 2301.10118v2 · doi: 10.48550/arxiv.2301.10118 · pith_short_12: FOKGCJLDCDOL · pith_short_16: FOKGCJLDCDOLNKNX · pith_short_8: FOKGCJLD

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/FOKGCJLDCDOLNKNXJUDIXBP4WL \
  | 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: 2b9461256310dcb6a9b74d068b85fcb2eee6fbc4f0f3d0e09e23881882a4e50b

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "4dad3868b92e18354c6f71b79e66656c3457d9d58f7e1b8015fdc6dfdd4b718c",
    "cross_cats_sorted": [
      "math.AG"
    ],
    "license": "http://arxiv.org/licenses/nonexclusive-distrib/1.0/",
    "primary_cat": "math.NT",
    "submitted_at": "2023-01-24T16:37:12Z",
    "title_canon_sha256": "771ffd341b1d91a979cf8d537010d6a9717f5a8142857ffc8528c40ce6bc7c50"
  },
  "schema_version": "1.0",
  "source": {
    "id": "2301.10118",
    "kind": "arxiv",
    "version": 2
  }
}