Pith Number

pith:GQVICX34

pith:2025:GQVICX343CE3WQDJTOVPC7VO7C

not attested not anchored not stored refs pending

$\delta$-invariants of log Fano planes

Elena Denisova

arxiv:2505.22528 v1 · 2025-05-28 · 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{GQVICX343CE3WQDJTOVPC7VO7C}

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	2026-07-05T11:11:26.078241Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

342a815f7cd889bb40699baaf17eaef88d9ffdee582c92702807fef47b6c366b

Aliases

arxiv: 2505.22528 · arxiv_version: 2505.22528v1 · doi: 10.48550/arxiv.2505.22528 · pith_short_12: GQVICX343CE3 · pith_short_16: GQVICX343CE3WQDJ · pith_short_8: GQVICX34

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/GQVICX343CE3WQDJTOVPC7VO7C \
  | 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: 342a815f7cd889bb40699baaf17eaef88d9ffdee582c92702807fef47b6c366b

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "fcb6d3ddcf84891510990dde84a119774f45d87e81622846485072db72208cc0",
    "cross_cats_sorted": [],
    "license": "http://arxiv.org/licenses/nonexclusive-distrib/1.0/",
    "primary_cat": "math.AG",
    "submitted_at": "2025-05-28T16:14:36Z",
    "title_canon_sha256": "025b33899312adf95af4aac370dd21cd5420d47bd10c1639b50527c2b1aaf71e"
  },
  "schema_version": "1.0",
  "source": {
    "id": "2505.22528",
    "kind": "arxiv",
    "version": 1
  }
}