Pith Number

pith:FDDQZDDA

pith:2012:FDDQZDDAC5PVEG2TJO3W5NYO2U

not attested not anchored not stored refs pending

Rational curves with one place at infinity

Abdallah Assi (LAREMA)

arxiv:1206.6189 v2 · 2012-06-27 · 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{FDDQZDDAC5PVEG2TJO3W5NYO2U}

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	2026-05-18T03:10:00.093705Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

28c70c8c60175f521b534bb76eb70ed52f7676ac2c1b044c246ce3dffc6243f2

Aliases

arxiv: 1206.6189 · arxiv_version: 1206.6189v2 · doi: 10.48550/arxiv.1206.6189 · pith_short_12: FDDQZDDAC5PV · pith_short_16: FDDQZDDAC5PVEG2T · pith_short_8: FDDQZDDA

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/FDDQZDDAC5PVEG2TJO3W5NYO2U \
  | 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: 28c70c8c60175f521b534bb76eb70ed52f7676ac2c1b044c246ce3dffc6243f2

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "096780b106e3d3a2fb8ff9027d4251e7bf1f1bcd8ead82519ea26a3974e9bc74",
    "cross_cats_sorted": [],
    "license": "http://arxiv.org/licenses/nonexclusive-distrib/1.0/",
    "primary_cat": "math.AG",
    "submitted_at": "2012-06-27T07:16:44Z",
    "title_canon_sha256": "5529718c943a17efe664c708789a96e67d7cfcf478bd3c2f3c74c3e493666a94"
  },
  "schema_version": "1.0",
  "source": {
    "id": "1206.6189",
    "kind": "arxiv",
    "version": 2
  }
}