Pith Number

pith:BY5EW7PV

pith:2009:BY5EW7PVAEUOCIHRNKIDKDG4WK

not attested not anchored not stored refs pending

On Quasismooth Weighted Complete Intersections

Jheng-Jie Chen, Jungkai Alfred Chen, Meng Chen

arxiv:0908.1439 v1 · 2009-08-11 · 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{BY5EW7PVAEUOCIHRNKIDKDG4WK}

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	2026-05-18T04:05:28.081935Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

0e3a4b7df50128e120f16a90350cdcb28853392c7657c3cb8e25de6ffd9158e1

Aliases

arxiv: 0908.1439 · arxiv_version: 0908.1439v1 · doi: 10.48550/arxiv.0908.1439 · pith_short_12: BY5EW7PVAEUO · pith_short_16: BY5EW7PVAEUOCIHR · pith_short_8: BY5EW7PV

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/BY5EW7PVAEUOCIHRNKIDKDG4WK \
  | 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: 0e3a4b7df50128e120f16a90350cdcb28853392c7657c3cb8e25de6ffd9158e1

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "9831a1fa7b10936d45b2473c50b8cb3edc12a8624fdb40fec6c40afdbfbeace4",
    "cross_cats_sorted": [],
    "license": "http://arxiv.org/licenses/nonexclusive-distrib/1.0/",
    "primary_cat": "math.AG",
    "submitted_at": "2009-08-11T02:32:57Z",
    "title_canon_sha256": "bc88e6603b5e10a8e0f8988a88d85cdc014c71b1a4265df42c6ca276d6a35878"
  },
  "schema_version": "1.0",
  "source": {
    "id": "0908.1439",
    "kind": "arxiv",
    "version": 1
  }
}