Pith Number

pith:UPAU3WPU

pith:2017:UPAU3WPULA3OAXP2PS64FHX2TS

not attested not anchored not stored refs pending

Equicontinuity, orbit closures and invariant compact open sets for group actions on zero-dimensional spaces

Colin D. Reid

arxiv:1710.00627 v2 · 2017-10-02 · math.GR · math.DS

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

Add to your LaTeX paper

\usepackage{pith}
\pithnumber{UPAU3WPULA3OAXP2PS64FHX2TS}

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	2026-05-18T00:10:03.956128Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

a3c14dd9f45836e05dfa7cbdc29efa9cb0cae43081ad5d1a2f65b01bd8932923

Aliases

arxiv: 1710.00627 · arxiv_version: 1710.00627v2 · doi: 10.48550/arxiv.1710.00627 · pith_short_12: UPAU3WPULA3O · pith_short_16: UPAU3WPULA3OAXP2 · pith_short_8: UPAU3WPU

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/UPAU3WPULA3OAXP2PS64FHX2TS \
  | 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: a3c14dd9f45836e05dfa7cbdc29efa9cb0cae43081ad5d1a2f65b01bd8932923

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "2944016fcd4bbc3609c667e860986eb360944e19a4c7e15fdd467c2b7f6981a6",
    "cross_cats_sorted": [
      "math.DS"
    ],
    "license": "http://arxiv.org/licenses/nonexclusive-distrib/1.0/",
    "primary_cat": "math.GR",
    "submitted_at": "2017-10-02T13:19:26Z",
    "title_canon_sha256": "1468f2519a187f721493a9fae08cc554bc6b0e36757f6a2eca17535b23adc206"
  },
  "schema_version": "1.0",
  "source": {
    "id": "1710.00627",
    "kind": "arxiv",
    "version": 2
  }
}