Pith Number

pith:RFRUCQYP

pith:2011:RFRUCQYPKVC66QJQOQOCJ233VT

not attested not anchored not stored refs pending

Factoriality properties of moduli spaces of sheaves on abelian and K3 surfaces

Antonio Rapagnetta, Arvid Perego

arxiv:1103.3957 v2 · 2011-03-21 · 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{RFRUCQYPKVC66QJQOQOCJ233VT}

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	2026-05-18T02:22:17.949522Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

896341430f5545ef4130741c24eb7bace60b26c91f715f9c119b8d8f99877094

Aliases

arxiv: 1103.3957 · arxiv_version: 1103.3957v2 · doi: 10.48550/arxiv.1103.3957 · pith_short_12: RFRUCQYPKVC6 · pith_short_16: RFRUCQYPKVC66QJQ · pith_short_8: RFRUCQYP

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/RFRUCQYPKVC66QJQOQOCJ233VT \
  | 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: 896341430f5545ef4130741c24eb7bace60b26c91f715f9c119b8d8f99877094

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "82779e74f55206e6c47c818b8a013dc5052774aa6145a1f20198cbfa738dee14",
    "cross_cats_sorted": [],
    "license": "http://arxiv.org/licenses/nonexclusive-distrib/1.0/",
    "primary_cat": "math.AG",
    "submitted_at": "2011-03-21T10:16:43Z",
    "title_canon_sha256": "9f52e1c0b34b9710ac7aad7e610711df50da5e905bb9dee78faaf31a6181ab8b"
  },
  "schema_version": "1.0",
  "source": {
    "id": "1103.3957",
    "kind": "arxiv",
    "version": 2
  }
}