Pith Number

pith:KCZJUVGH

pith:2006:KCZJUVGH3L6YBF2N54LM23ECLA

not attested not anchored not stored refs pending

On Fano-Enriques threefolds

Yuri Prokhorov

arxiv:math/0604468 v2 · 2006-04-21 · 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{KCZJUVGH3L6YBF2N54LM23ECLA}

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	2026-05-18T01:38:24.195592Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

50b29a54c7dafd80974def16cd6c8258018dde99810f5afec7c8ce8260459560

Aliases

arxiv: math/0604468 · arxiv_version: math/0604468v2 · doi: 10.48550/arxiv.math/0604468 · pith_short_12: KCZJUVGH3L6Y · pith_short_16: KCZJUVGH3L6YBF2N · pith_short_8: KCZJUVGH

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/KCZJUVGH3L6YBF2N54LM23ECLA \
  | 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: 50b29a54c7dafd80974def16cd6c8258018dde99810f5afec7c8ce8260459560

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "3ec01d90dd0e4e22b8e86c52f25bed3abc30a96ea2605f9d6d2920bb0589fad1",
    "cross_cats_sorted": [],
    "license": "",
    "primary_cat": "math.AG",
    "submitted_at": "2006-04-21T17:25:27Z",
    "title_canon_sha256": "57bb3f138261f30408405325faaf50372f9cc4347e476c88111c0042a2c82936"
  },
  "schema_version": "1.0",
  "source": {
    "id": "math/0604468",
    "kind": "arxiv",
    "version": 2
  }
}