Pith Number

pith:BGRGJ76E

pith:2025:BGRGJ76ESE25TXHTFUUPAYL5KK

not attested not anchored not stored refs pending

$C^0$-rigidity of the Hamiltonian diffeomorphism group of symplectic rational surfaces

Cheuk Yu Mak, Marcelo Atallah, WeiWei Wu

arxiv:2508.20285 v1 · 2025-08-27 · math.SG · math.GT

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Add to your LaTeX paper

\usepackage{pith}
\pithnumber{BGRGJ76ESE25TXHTFUUPAYL5KK}

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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.

Cited by

2 papers in Pith

The nearby Lagrangian conjecture for pinwheels

Receipt and verification

First computed	2026-07-05T12:00:33.577685Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

09a264ffc49135d9dcf32d28f0617d52acf4f463bdbcc93f0b5755c2b1069713

Aliases

arxiv: 2508.20285 · arxiv_version: 2508.20285v1 · doi: 10.48550/arxiv.2508.20285 · pith_short_12: BGRGJ76ESE25 · pith_short_16: BGRGJ76ESE25TXHT · pith_short_8: BGRGJ76E

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/BGRGJ76ESE25TXHTFUUPAYL5KK \
  | 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: 09a264ffc49135d9dcf32d28f0617d52acf4f463bdbcc93f0b5755c2b1069713

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "1022153accb8e2c5169b967034ce8aa9046f39313acb3486afc7416d46a9ad82",
    "cross_cats_sorted": [
      "math.GT"
    ],
    "license": "http://arxiv.org/licenses/nonexclusive-distrib/1.0/",
    "primary_cat": "math.SG",
    "submitted_at": "2025-08-27T21:30:26Z",
    "title_canon_sha256": "5c7fc6ad83f9fa8be8d2120cac25e09b454d7e2a9ac8c9003b1d8fb5a1528d0b"
  },
  "schema_version": "1.0",
  "source": {
    "id": "2508.20285",
    "kind": "arxiv",
    "version": 1
  }
}