Pith Number

pith:QSKP7P6C

pith:2000:QSKP7P6CDEWCEWXY55XYUW3NBA

not attested not anchored not stored refs pending

A note on the precompactness of weakly almost periodic groups

Michael G. Megrelishvili, Vladimir G. Pestov, Vladimir V. Uspenskij

arxiv:math/0011152 v1 · 2000-11-21 · math.GN · 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{QSKP7P6CDEWCEWXY55XYUW3NBA}

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	2026-05-18T01:05:38.086681Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

8494ffbfc2192c225af8ef6f8a5b6d0809ef60a0aa32ccf3f2628e6021c11ecd

Aliases

arxiv: math/0011152 · arxiv_version: math/0011152v1 · doi: 10.48550/arxiv.math/0011152 · pith_short_12: QSKP7P6CDEWC · pith_short_16: QSKP7P6CDEWCEWXY · pith_short_8: QSKP7P6C

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/QSKP7P6CDEWCEWXY55XYUW3NBA \
  | 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: 8494ffbfc2192c225af8ef6f8a5b6d0809ef60a0aa32ccf3f2628e6021c11ecd

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "cb900f53e2ecd86b8e65b3842f56736bbf0673e12cc775b16a6c24c9f1ff7767",
    "cross_cats_sorted": [
      "math.DS"
    ],
    "license": "",
    "primary_cat": "math.GN",
    "submitted_at": "2000-11-21T08:43:46Z",
    "title_canon_sha256": "3eb9f377ec2442c86c6bc871b18b1c26b29f769ddff051950935d573d50f8573"
  },
  "schema_version": "1.0",
  "source": {
    "id": "math/0011152",
    "kind": "arxiv",
    "version": 1
  }
}