Pith Number

pith:44RYHUC5

pith:2026:44RYHUC5ZBZ7IWXCTV62KWH3B2

not attested not anchored not stored refs pending

Equivariant irrationality of very general symmetric Verra fourfolds

Aideen Fay

arxiv:2605.30439 v1 · 2026-05-28 · 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{44RYHUC5ZBZ7IWXCTV62KWH3B2}

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	2026-06-01T01:02:51.738607Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

e72383d05dc873f45ae29d7da558fb0e9f66b233523055227265fd834dbf4196

Aliases

arxiv: 2605.30439 · arxiv_version: 2605.30439v1 · doi: 10.48550/arxiv.2605.30439 · pith_short_12: 44RYHUC5ZBZ7 · pith_short_16: 44RYHUC5ZBZ7IWXC · pith_short_8: 44RYHUC5

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/44RYHUC5ZBZ7IWXCTV62KWH3B2 \
  | 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: e72383d05dc873f45ae29d7da558fb0e9f66b233523055227265fd834dbf4196

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "c96c65e585e1c6c59069669b4245c44ff715a8de5e687d89a286f8d94fd840e0",
    "cross_cats_sorted": [],
    "license": "http://creativecommons.org/licenses/by/4.0/",
    "primary_cat": "math.AG",
    "submitted_at": "2026-05-28T18:11:48Z",
    "title_canon_sha256": "bcfe0200742d91332d5aee809ec3cb974678f0d09cca116c079eb30f1d36b289"
  },
  "schema_version": "1.0",
  "source": {
    "id": "2605.30439",
    "kind": "arxiv",
    "version": 1
  }
}