Pith Number

pith:QSG245KS

pith:2011:QSG245KSRUY2C36CJBNH3Y4UD7

not attested not anchored not stored refs pending

Embeddings of SL(2,Z) into the Cremona group

J\'er\'emy Blanc, Julie D\'eserti

arxiv:1103.0114 v2 · 2011-03-01 · math.AG · math.GR

Open paper page JSON Open Graph Bundle Merged state Verified badge What is a Pith Number?

Add to your LaTeX paper

\usepackage{pith}
\pithnumber{QSG245KSRUY2C36CJBNH3Y4UD7}

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	2026-05-18T03:30:15.150865Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

848dae75528d31a16fc2485a7de3941fc72c43f3635480627f831afe2b780557

Aliases

arxiv: 1103.0114 · arxiv_version: 1103.0114v2 · doi: 10.48550/arxiv.1103.0114 · pith_short_12: QSG245KSRUY2 · pith_short_16: QSG245KSRUY2C36C · pith_short_8: QSG245KS

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/QSG245KSRUY2C36CJBNH3Y4UD7 \
  | 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: 848dae75528d31a16fc2485a7de3941fc72c43f3635480627f831afe2b780557

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "7fce9abbcbe9bd5d7f1ea3462373d0ac094ee4630249b7c34c8c62133438ed28",
    "cross_cats_sorted": [
      "math.GR"
    ],
    "license": "http://arxiv.org/licenses/nonexclusive-distrib/1.0/",
    "primary_cat": "math.AG",
    "submitted_at": "2011-03-01T09:36:22Z",
    "title_canon_sha256": "69fd21c5c9746e565776b10d3e13aa71148eefe816efeed8a9b2a6206dbba1b1"
  },
  "schema_version": "1.0",
  "source": {
    "id": "1103.0114",
    "kind": "arxiv",
    "version": 2
  }
}