Pith Number

pith:QRTY2SWW

pith:2008:QRTY2SWWYTU5N25EGIR6N7L3X7

not attested not anchored not stored refs pending

The Generalized Bloch Conjecture for the quotient of certain Calabi-Yau varieties

Wenchuan Hu

arxiv:0809.5070 v1 · 2008-09-29 · 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{QRTY2SWWYTU5N25EGIR6N7L3X7}

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	2026-07-04T15:14:43.563381Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

84678d4ad6c4e9d6eba43223e6fd7bbfccea4c0d6de61e16f3aa4660caadb0ed

Aliases

arxiv: 0809.5070 · arxiv_version: 0809.5070v1 · doi: 10.48550/arxiv.0809.5070 · pith_short_12: QRTY2SWWYTU5 · pith_short_16: QRTY2SWWYTU5N25E · pith_short_8: QRTY2SWW

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/QRTY2SWWYTU5N25EGIR6N7L3X7 \
  | 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: 84678d4ad6c4e9d6eba43223e6fd7bbfccea4c0d6de61e16f3aa4660caadb0ed

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "6ff46d5a42770250dbf264fa46e92cca29107533dcd9a68f5538e05d28571136",
    "cross_cats_sorted": [],
    "license": "http://arxiv.org/licenses/nonexclusive-distrib/1.0/",
    "primary_cat": "math.AG",
    "submitted_at": "2008-09-29T20:50:55Z",
    "title_canon_sha256": "76f4e91cd59b7e8b53b0a256c13b4c3276d9bfd30f453c1fa8165962900df13a"
  },
  "schema_version": "1.0",
  "source": {
    "id": "0809.5070",
    "kind": "arxiv",
    "version": 1
  }
}