Pith Number

pith:RQPENWVM

pith:2001:RQPENWVMX45UEYYZ326IV3SGJD

not attested not anchored not stored refs pending

Curves of genus 2 and Desargues configurations

Dan Avritzer, Herbert Lange

arxiv:math/0109151 v1 · 2001-09-20 · 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{RQPENWVMX45UEYYZ326IV3SGJD}

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	2026-05-18T01:05:37.568978Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

8c1e46daacbf3b426319debc8aee4648de42fe6a425d4238291b01d78ee94309

Aliases

arxiv: math/0109151 · arxiv_version: math/0109151v1 · doi: 10.48550/arxiv.math/0109151 · pith_short_12: RQPENWVMX45U · pith_short_16: RQPENWVMX45UEYYZ · pith_short_8: RQPENWVM

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/RQPENWVMX45UEYYZ326IV3SGJD \
  | 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: 8c1e46daacbf3b426319debc8aee4648de42fe6a425d4238291b01d78ee94309

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "774d62bba654eb08d579c8656bffebbf3acbfa0a435c813a510597d8f12fa0ab",
    "cross_cats_sorted": [],
    "license": "",
    "primary_cat": "math.AG",
    "submitted_at": "2001-09-20T20:47:58Z",
    "title_canon_sha256": "f27c018f6e4d9b4fad737a8db89d82809b4008a431cb102a95ea6865809f7158"
  },
  "schema_version": "1.0",
  "source": {
    "id": "math/0109151",
    "kind": "arxiv",
    "version": 1
  }
}