Pith Number

pith:EXPE6YS2

pith:2012:EXPE6YS27GIYGAWKCIDI7HJFK4

not attested not anchored not stored refs pending

A computational approach to L\"uroth quartics

Giorgio Ottaviani

arxiv:1208.1372 v1 · 2012-08-07 · 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{EXPE6YS27GIYGAWKCIDI7HJFK4}

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	2026-05-18T03:49:19.314559Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

25de4f625af9918302ca12068f9d255706f383ef70cbc426aa68d828d36924a0

Aliases

arxiv: 1208.1372 · arxiv_version: 1208.1372v1 · doi: 10.48550/arxiv.1208.1372 · pith_short_12: EXPE6YS27GIY · pith_short_16: EXPE6YS27GIYGAWK · pith_short_8: EXPE6YS2

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/EXPE6YS27GIYGAWKCIDI7HJFK4 \
  | 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: 25de4f625af9918302ca12068f9d255706f383ef70cbc426aa68d828d36924a0

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "5d9537e436b5f57cfa32f74927e413821257963137bff2ae5a36269e9b87c8d2",
    "cross_cats_sorted": [],
    "license": "http://arxiv.org/licenses/nonexclusive-distrib/1.0/",
    "primary_cat": "math.AG",
    "submitted_at": "2012-08-07T09:01:14Z",
    "title_canon_sha256": "f04171b2682ed065b47088e3e130e4bba54a3df5455c64bee66933f60233e6fd"
  },
  "schema_version": "1.0",
  "source": {
    "id": "1208.1372",
    "kind": "arxiv",
    "version": 1
  }
}