Pith Number

pith:ZKLRSKM2

pith:2018:ZKLRSKM2BJMXKG565JS7JUX5MQ

not attested not anchored not stored refs pending

$C^*$-rigidity of dynamical systems and \'etale groupoids

Toke Meier Carlsen

arxiv:1803.05326 v1 · 2018-03-13 · math.OA · math.DS · math.FA

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

Add to your LaTeX paper

\usepackage{pith}
\pithnumber{ZKLRSKM2BJMXKG565JS7JUX5MQ}

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	2026-05-18T00:21:01.579675Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

ca9719299a0a59751bbeea65f4d2fd640d0e0dddff6f6360406504206c7a9c0c

Aliases

arxiv: 1803.05326 · arxiv_version: 1803.05326v1 · doi: 10.48550/arxiv.1803.05326 · pith_short_12: ZKLRSKM2BJMX · pith_short_16: ZKLRSKM2BJMXKG56 · pith_short_8: ZKLRSKM2

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/ZKLRSKM2BJMXKG565JS7JUX5MQ \
  | 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: ca9719299a0a59751bbeea65f4d2fd640d0e0dddff6f6360406504206c7a9c0c

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "d82833528ccd6679c8d32dcfff1495601ef97938caf5026512941b2aebdcec97",
    "cross_cats_sorted": [
      "math.DS",
      "math.FA"
    ],
    "license": "http://arxiv.org/licenses/nonexclusive-distrib/1.0/",
    "primary_cat": "math.OA",
    "submitted_at": "2018-03-13T09:35:22Z",
    "title_canon_sha256": "a5838829e716df96e0633aa5adb5cb90ac565daddb45570f5a81c9c3721657b2"
  },
  "schema_version": "1.0",
  "source": {
    "id": "1803.05326",
    "kind": "arxiv",
    "version": 1
  }
}