Pith Number

pith:N53SQR4H

pith:2025:N53SQR4HPMW2P4DIPIDVUFN2JH

not attested not anchored not stored refs pending

Rigidity of pseudofunction algebras of ample groupoids

Eusebio Gardella, Hannes Thiel, Mathias Palmstr{\o}m

arxiv:2506.09563 v1 · 2025-06-11 · math.OA · math.DS · 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{N53SQR4HPMW2P4DIPIDVUFN2JH}

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	2026-07-05T11:19:39.067385Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

6f772847877b2da7f0687a075a15ba49ef1a3e0093495636bf5e91bb58cd0ff7

Aliases

arxiv: 2506.09563 · arxiv_version: 2506.09563v1 · doi: 10.48550/arxiv.2506.09563 · pith_short_12: N53SQR4HPMW2 · pith_short_16: N53SQR4HPMW2P4DI · pith_short_8: N53SQR4H

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/N53SQR4HPMW2P4DIPIDVUFN2JH \
  | 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: 6f772847877b2da7f0687a075a15ba49ef1a3e0093495636bf5e91bb58cd0ff7

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "e456dbd346d19f5e982fd0f267aae460cc663c8ae325ec4d88416434f26c865d",
    "cross_cats_sorted": [
      "math.DS",
      "math.GR"
    ],
    "license": "http://arxiv.org/licenses/nonexclusive-distrib/1.0/",
    "primary_cat": "math.OA",
    "submitted_at": "2025-06-11T09:51:26Z",
    "title_canon_sha256": "65920f34bbbc6ede7a5302598df4058103c91578ed3259111169be3a1d7f669a"
  },
  "schema_version": "1.0",
  "source": {
    "id": "2506.09563",
    "kind": "arxiv",
    "version": 1
  }
}