Pith Number

pith:MH4W5I2X

pith:2026:MH4W5I2XZRZLUQAAE6XJ2YMCNR

not attested not anchored not stored refs pending

Whittaker groups and hyperelliptic curves

Jaap Top, Marius van der Put

arxiv:2605.22406 v1 · 2026-05-21 · 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{MH4W5I2XZRZLUQAAE6XJ2YMCNR}

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	2026-05-22T01:04:41.962170Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

61f96ea357cc72ba400027ae9d61826c51f274ef630ed2c4f7d1ea4ffba7d0c2

Aliases

arxiv: 2605.22406 · arxiv_version: 2605.22406v1 · doi: 10.48550/arxiv.2605.22406 · pith_short_12: MH4W5I2XZRZL · pith_short_16: MH4W5I2XZRZLUQAA · pith_short_8: MH4W5I2X

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/MH4W5I2XZRZLUQAAE6XJ2YMCNR \
  | 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: 61f96ea357cc72ba400027ae9d61826c51f274ef630ed2c4f7d1ea4ffba7d0c2

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "86fa8c0ac1b61676ac252cc1537de0de7ab33d85675b68a52b3e7cdcfe65ebcf",
    "cross_cats_sorted": [],
    "license": "http://creativecommons.org/licenses/by/4.0/",
    "primary_cat": "math.AG",
    "submitted_at": "2026-05-21T12:33:40Z",
    "title_canon_sha256": "700c5bcba9e62bc516ffd1c9eec29167308d732c20714f088aa68054942bb95a"
  },
  "schema_version": "1.0",
  "source": {
    "id": "2605.22406",
    "kind": "arxiv",
    "version": 1
  }
}