Pith Number

pith:RQLOWMW2

pith:2012:RQLOWMW2SL67J3ESXSZ2V5FF6J

not attested not anchored not stored refs pending

On special quadratic birational transformations whose base locus has dimension at most three

Giovanni Staglian\`o

arxiv:1205.5523 v4 · 2012-05-24 · 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{RQLOWMW2SL67J3ESXSZ2V5FF6J}

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	2026-05-18T03:08:27.371379Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

8c16eb32da92fdf4ec92bcb3aaf4a5f243a22786765d9028c5bffe19f73505c8

Aliases

arxiv: 1205.5523 · arxiv_version: 1205.5523v4 · doi: 10.48550/arxiv.1205.5523 · pith_short_12: RQLOWMW2SL67 · pith_short_16: RQLOWMW2SL67J3ES · pith_short_8: RQLOWMW2

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/RQLOWMW2SL67J3ESXSZ2V5FF6J \
  | 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: 8c16eb32da92fdf4ec92bcb3aaf4a5f243a22786765d9028c5bffe19f73505c8

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "28e2d8297d7356493d911d1ac3b7c2b650da345604dec70f4fcd3d40dfab4f9e",
    "cross_cats_sorted": [],
    "license": "http://arxiv.org/licenses/nonexclusive-distrib/1.0/",
    "primary_cat": "math.AG",
    "submitted_at": "2012-05-24T18:27:32Z",
    "title_canon_sha256": "c795cf9704ce3198c0edff83ec77571e7e143ec4708c1a63ef381a81a838d19e"
  },
  "schema_version": "1.0",
  "source": {
    "id": "1205.5523",
    "kind": "arxiv",
    "version": 4
  }
}