Pith Number

pith:2TL7DYOD

pith:2025:2TL7DYODOXZJTGD7LTTW4KZYOP

not attested not anchored not stored refs pending

Algebro-geometric subgroups of mapping class groups

Louis Funar, Philippe Eyssidieux

arxiv:2503.22470 v2 · 2025-03-28 · math.AG · math.GT

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

Add to your LaTeX paper

\usepackage{pith}
\pithnumber{2TL7DYODOXZJTGD7LTTW4KZYOP}

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	2026-05-29T01:04:52.669040Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

d4d7f1e1c375f299987f5ce76e2b3873d0bc1b40aa4f65f6a553b57f5d5219b8

Aliases

arxiv: 2503.22470 · arxiv_version: 2503.22470v2 · doi: 10.48550/arxiv.2503.22470 · pith_short_12: 2TL7DYODOXZJ · pith_short_16: 2TL7DYODOXZJTGD7 · pith_short_8: 2TL7DYOD

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/2TL7DYODOXZJTGD7LTTW4KZYOP \
  | 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: d4d7f1e1c375f299987f5ce76e2b3873d0bc1b40aa4f65f6a553b57f5d5219b8

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "a530afb3d6bb45a4bb69b95984a06873a698c7d16d8c4084ef50c0ece8bb39b9",
    "cross_cats_sorted": [
      "math.GT"
    ],
    "license": "http://arxiv.org/licenses/nonexclusive-distrib/1.0/",
    "primary_cat": "math.AG",
    "submitted_at": "2025-03-28T14:30:41Z",
    "title_canon_sha256": "cc1b4b54fe04051e6ec2134baadd9917bb026aca65d7144754edf3c5c5516bbf"
  },
  "schema_version": "1.0",
  "source": {
    "id": "2503.22470",
    "kind": "arxiv",
    "version": 2
  }
}