Pith Number

pith:4AXJZURH

pith:2015:4AXJZURHMGNPFC252B2MWHTMJW

not attested not anchored not stored refs pending

Fano 5-folds with nef tangent bundles

Akihiro Kanemitsu

arxiv:1503.04579 v1 · 2015-03-16 · 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{4AXJZURHMGNPFC252B2MWHTMJW}

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	2026-05-18T02:23:24.626929Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

e02e9cd227619af28b5dd074cb1e6c4d8d895345bf541950d041da158d5027ba

Aliases

arxiv: 1503.04579 · arxiv_version: 1503.04579v1 · doi: 10.48550/arxiv.1503.04579 · pith_short_12: 4AXJZURHMGNP · pith_short_16: 4AXJZURHMGNPFC25 · pith_short_8: 4AXJZURH

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/4AXJZURHMGNPFC252B2MWHTMJW \
  | 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: e02e9cd227619af28b5dd074cb1e6c4d8d895345bf541950d041da158d5027ba

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "2183d5d022b51866c9efbef851c99c5046e0eaf7d62da64f3409b13e25bb0453",
    "cross_cats_sorted": [],
    "license": "http://arxiv.org/licenses/nonexclusive-distrib/1.0/",
    "primary_cat": "math.AG",
    "submitted_at": "2015-03-16T09:39:02Z",
    "title_canon_sha256": "0ba24479e00b82d6f9d5eb25f25bbb9ba692c0c6e08437fbf543ebbbf730262f"
  },
  "schema_version": "1.0",
  "source": {
    "id": "1503.04579",
    "kind": "arxiv",
    "version": 1
  }
}