Pith Number

pith:OBI7RRNH

pith:2006:OBI7RRNHRW5GK2KKCDR7P2OQW4

not attested not anchored not stored refs pending

A note on Lawson homology for smooth varieties with small Chow groups

Wenchuan Hu

arxiv:math/0602516 v2 · 2006-02-23 · 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{OBI7RRNHRW5GK2KKCDR7P2OQW4}

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	2026-07-04T14:53:25.948523Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

7051f8c5a78dba65694a10e3f7e9d0b71712e6ead5288013ceacf63dc06b58b1

Aliases

arxiv: math/0602516 · arxiv_version: math/0602516v2 · doi: 10.48550/arxiv.math/0602516 · pith_short_12: OBI7RRNHRW5G · pith_short_16: OBI7RRNHRW5GK2KK · pith_short_8: OBI7RRNH

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/OBI7RRNHRW5GK2KKCDR7P2OQW4 \
  | 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: 7051f8c5a78dba65694a10e3f7e9d0b71712e6ead5288013ceacf63dc06b58b1

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "060dc83de4d9c35fd3ebc6502aa96c0d4d1c00cd6e96edf475f6250bbcb63e4f",
    "cross_cats_sorted": [],
    "license": "",
    "primary_cat": "math.AG",
    "submitted_at": "2006-02-23T02:10:14Z",
    "title_canon_sha256": "0da77fa3bfb0a26c6b4f0677d19358b03b148c9fe898c5d79fa989337caf7814"
  },
  "schema_version": "1.0",
  "source": {
    "id": "math/0602516",
    "kind": "arxiv",
    "version": 2
  }
}