Pith Number

pith:JSM4RVKJ

pith:2019:JSM4RVKJPPKSWSESORTKNPDYP2

not attested not anchored not stored refs pending

Field generators in two variables and birational endomorphisms of $\mathbb{A}^2$

Daniel Daigle, Pierrette Cassou-Nogu\`es

arxiv:1906.08614 v1 · 2019-06-20 · 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{JSM4RVKJPPKSWSESORTKNPDYP2}

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	2026-05-17T23:42:51.933041Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

4c99c8d5497bd52b48927466a6bc787eba7d56373a27f8155465ddcc44948271

Aliases

arxiv: 1906.08614 · arxiv_version: 1906.08614v1 · doi: 10.48550/arxiv.1906.08614 · pith_short_12: JSM4RVKJPPKS · pith_short_16: JSM4RVKJPPKSWSES · pith_short_8: JSM4RVKJ

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/JSM4RVKJPPKSWSESORTKNPDYP2 \
  | 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: 4c99c8d5497bd52b48927466a6bc787eba7d56373a27f8155465ddcc44948271

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "ba20575cb016b98e826932e267210211be13fe65b15d9db93229d2441eb37028",
    "cross_cats_sorted": [],
    "license": "http://arxiv.org/licenses/nonexclusive-distrib/1.0/",
    "primary_cat": "math.AG",
    "submitted_at": "2019-06-20T13:44:53Z",
    "title_canon_sha256": "6d7a80528049fad5e8b8ccc4d54ece91513073e2577f20c26c8afb53776980cf"
  },
  "schema_version": "1.0",
  "source": {
    "id": "1906.08614",
    "kind": "arxiv",
    "version": 1
  }
}