Pith Number

pith:QYSY3NBR

pith:2014:QYSY3NBR7EMNTFY43WONHO6PU4

not attested not anchored not stored refs pending

Characteristic foliation on non-uniruled smooth divisors on hyperkaehler manifolds

Ekaterina Amerik, Fr\'ed\'eric Campana

arxiv:1405.0539 v4 · 2014-05-02 · 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{QYSY3NBR7EMNTFY43WONHO6PU4}

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	2026-05-18T01:17:05.709524Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

86258db431f918d9971cdd9cd3bbcfa7223d86e395f5c391c61c7412c8b8b792

Aliases

arxiv: 1405.0539 · arxiv_version: 1405.0539v4 · doi: 10.48550/arxiv.1405.0539 · pith_short_12: QYSY3NBR7EMN · pith_short_16: QYSY3NBR7EMNTFY4 · pith_short_8: QYSY3NBR

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/QYSY3NBR7EMNTFY43WONHO6PU4 \
  | 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: 86258db431f918d9971cdd9cd3bbcfa7223d86e395f5c391c61c7412c8b8b792

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "6b4ed68695d3b9f88b5f025755d5d5a1e69873d2dffb5101b5e49308bf039c70",
    "cross_cats_sorted": [],
    "license": "http://arxiv.org/licenses/nonexclusive-distrib/1.0/",
    "primary_cat": "math.AG",
    "submitted_at": "2014-05-02T23:33:19Z",
    "title_canon_sha256": "adbec2d13fedcf77a59b2bac46caf69b29536b4966f4d29c53d96029c7777980"
  },
  "schema_version": "1.0",
  "source": {
    "id": "1405.0539",
    "kind": "arxiv",
    "version": 4
  }
}