Pith Number

pith:3KU7YZPW

pith:2011:3KU7YZPWLQ5KONDG4LZTJPFH7B

not attested not anchored not stored refs pending

Categorical representability and intermediate Jacobians of Fano threefolds

Marcello Bernardara, Michele Bolognesi (IRMAR)

arxiv:1103.3591 v1 · 2011-03-18 · 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{3KU7YZPWLQ5KONDG4LZTJPFH7B}

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	2026-05-18T04:26:32.303834Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

daa9fc65f65c3aa73466e2f334bca7f8709eb6dfe455b993c9fb917a6d263f98

Aliases

arxiv: 1103.3591 · arxiv_version: 1103.3591v1 · doi: 10.48550/arxiv.1103.3591 · pith_short_12: 3KU7YZPWLQ5K · pith_short_16: 3KU7YZPWLQ5KONDG · pith_short_8: 3KU7YZPW

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/3KU7YZPWLQ5KONDG4LZTJPFH7B \
  | 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: daa9fc65f65c3aa73466e2f334bca7f8709eb6dfe455b993c9fb917a6d263f98

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "7cf17852eea1ee8e7b3439cd701463daea4fd5bbe4f14dd70dae0321525901cb",
    "cross_cats_sorted": [],
    "license": "http://arxiv.org/licenses/nonexclusive-distrib/1.0/",
    "primary_cat": "math.AG",
    "submitted_at": "2011-03-18T10:26:30Z",
    "title_canon_sha256": "8afb48464e176796a47b368828389f56f6eaae418248e571914f1a8baabd71b4"
  },
  "schema_version": "1.0",
  "source": {
    "id": "1103.3591",
    "kind": "arxiv",
    "version": 1
  }
}