Pith Number

pith:HJUA6WAE

pith:2014:HJUA6WAES6PMJMOFENYUZ2JCT3

not attested not anchored not stored refs pending

Birationally rigid Fano fibre spaces. II

Aleksandr V. Pukhlikov

arxiv:1407.0687 v1 · 2014-07-02 · 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{HJUA6WAES6PMJMOFENYUZ2JCT3}

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	2026-05-18T01:31:46.571325Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

3a680f5804979ec4b1c523714ce9229ee9618e50ce1ec106c7487e62a9dde703

Aliases

arxiv: 1407.0687 · arxiv_version: 1407.0687v1 · doi: 10.48550/arxiv.1407.0687 · pith_short_12: HJUA6WAES6PM · pith_short_16: HJUA6WAES6PMJMOF · pith_short_8: HJUA6WAE

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/HJUA6WAES6PMJMOFENYUZ2JCT3 \
  | 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: 3a680f5804979ec4b1c523714ce9229ee9618e50ce1ec106c7487e62a9dde703

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "0dbf2d4470ed12198e39fb9080ec6e6537f5c815e6c5fe2f07bcd5fc2cf8f32d",
    "cross_cats_sorted": [],
    "license": "http://arxiv.org/licenses/nonexclusive-distrib/1.0/",
    "primary_cat": "math.AG",
    "submitted_at": "2014-07-02T19:31:19Z",
    "title_canon_sha256": "a0a41f2cf863468283769f1cd313a526368fd1342e0bcf539f4bf0d90a8cc8e1"
  },
  "schema_version": "1.0",
  "source": {
    "id": "1407.0687",
    "kind": "arxiv",
    "version": 1
  }
}