Pith Number

pith:XB7DRJDQ

pith:2016:XB7DRJDQTLQ6GKKEF2P2DUOHBN

not attested not anchored not stored refs pending

A topological transformation group without non-trivial equivariant compactifications

Vladimir G. Pestov

arxiv:1601.03084 v3 · 2016-01-12 · 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{XB7DRJDQTLQ6GKKEF2P2DUOHBN}

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	2026-05-18T00:46:55.868932Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

b87e38a4709ae1e329442e9fa1d1c70b66a8dc6166646785ee0ad9237705cccd

Aliases

arxiv: 1601.03084 · arxiv_version: 1601.03084v3 · doi: 10.48550/arxiv.1601.03084 · pith_short_12: XB7DRJDQTLQ6 · pith_short_16: XB7DRJDQTLQ6GKKE · pith_short_8: XB7DRJDQ

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/XB7DRJDQTLQ6GKKEF2P2DUOHBN \
  | 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: b87e38a4709ae1e329442e9fa1d1c70b66a8dc6166646785ee0ad9237705cccd

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "c4cac532aa9fa940234dde04ba002594ae22d5fbade093c3f883b0f4a8c0a270",
    "cross_cats_sorted": [],
    "license": "http://arxiv.org/licenses/nonexclusive-distrib/1.0/",
    "primary_cat": "math.DS",
    "submitted_at": "2016-01-12T22:06:58Z",
    "title_canon_sha256": "b465985dc167b5f9abeb62c3f1d47c2061bff66124cc1e2ff4d95b230612f5ac"
  },
  "schema_version": "1.0",
  "source": {
    "id": "1601.03084",
    "kind": "arxiv",
    "version": 3
  }
}