Pith Number

pith:OD5YBLB3

pith:2026:OD5YBLB3TYDF5ZLKO7FXJINIKP

not attested not anchored not stored refs pending

Infinitesimal invariants of genus 4 curves and the Griffiths-Pirola cycle

Matteo Verni

arxiv:2607.12793 v1 · 2026-07-14 · 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{OD5YBLB3TYDF5ZLKO7FXJINIKP}

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	2026-07-15T01:22:18.224902Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

70fb80ac3b9e065ee56a77cb74a1a853d3ee3720e378d7c5677651e435fed361

Aliases

arxiv: 2607.12793 · arxiv_version: 2607.12793v1 · doi: 10.48550/arxiv.2607.12793 · pith_short_12: OD5YBLB3TYDF · pith_short_16: OD5YBLB3TYDF5ZLK · pith_short_8: OD5YBLB3

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/OD5YBLB3TYDF5ZLKO7FXJINIKP \
  | 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: 70fb80ac3b9e065ee56a77cb74a1a853d3ee3720e378d7c5677651e435fed361

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "b4ca62c68c36af2f38776e8980c01049430dc1b0288a53df536a83c9db5c97af",
    "cross_cats_sorted": [],
    "license": "http://arxiv.org/licenses/nonexclusive-distrib/1.0/",
    "primary_cat": "math.AG",
    "submitted_at": "2026-07-14T14:10:28Z",
    "title_canon_sha256": "704376b2a41c8d196dd573faf1a0005a53d05f06493441d6d4c5d88232b135e5"
  },
  "schema_version": "1.0",
  "source": {
    "id": "2607.12793",
    "kind": "arxiv",
    "version": 1
  }
}