Pith Number

pith:J3PVQYLV

pith:2012:J3PVQYLVSOPTUNC3NWUVBUBQNY

not attested not anchored not stored refs pending

First Steps Towards Radical Parametrization of Algebraic Surfaces

David Sevilla, J. Rafael Sendra

arxiv:1206.1456 v2 · 2012-06-07 · cs.SC · 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{J3PVQYLVSOPTUNC3NWUVBUBQNY}

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	2026-05-18T03:33:11.757701Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

4edf586175939f3a345b6da950d0306e23f52862707212b97726d304d380761b

Aliases

arxiv: 1206.1456 · arxiv_version: 1206.1456v2 · doi: 10.48550/arxiv.1206.1456 · pith_short_12: J3PVQYLVSOPT · pith_short_16: J3PVQYLVSOPTUNC3 · pith_short_8: J3PVQYLV

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/J3PVQYLVSOPTUNC3NWUVBUBQNY \
  | 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: 4edf586175939f3a345b6da950d0306e23f52862707212b97726d304d380761b

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "d5eb580cf8be54a9da415153dc606606b12ff0e5f1fa2c2bdac2910299bb4801",
    "cross_cats_sorted": [
      "math.AG"
    ],
    "license": "http://arxiv.org/licenses/nonexclusive-distrib/1.0/",
    "primary_cat": "cs.SC",
    "submitted_at": "2012-06-07T11:42:07Z",
    "title_canon_sha256": "8e9b56576c1b74315bb1d158e484e5d3b4604c9b2896d99a75e1caf8e70cfa87"
  },
  "schema_version": "1.0",
  "source": {
    "id": "1206.1456",
    "kind": "arxiv",
    "version": 2
  }
}