Pith Number

pith:GKQVUTQL

pith:2009:GKQVUTQLQ2ULGBQZY6OM3M5QWJ

not attested not anchored not stored refs pending

Strange images of profinite groups

Nikolay Nikolov

arxiv:0901.0244 v3 · 2009-01-02 · 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{GKQVUTQLQ2ULGBQZY6OM3M5QWJ}

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	2026-05-18T04:18:35.022185Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

32a15a4e0b86a8b30619c79ccdb3b0b27dbeb0be61f604a8cb06e62b70daf72f

Aliases

arxiv: 0901.0244 · arxiv_version: 0901.0244v3 · doi: 10.48550/arxiv.0901.0244 · pith_short_12: GKQVUTQLQ2UL · pith_short_16: GKQVUTQLQ2ULGBQZ · pith_short_8: GKQVUTQL

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/GKQVUTQLQ2ULGBQZY6OM3M5QWJ \
  | 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: 32a15a4e0b86a8b30619c79ccdb3b0b27dbeb0be61f604a8cb06e62b70daf72f

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "235df611c6114e55396adb3818f555a0b81224a3e99c6aff5b26133ab778da80",
    "cross_cats_sorted": [],
    "license": "http://arxiv.org/licenses/nonexclusive-distrib/1.0/",
    "primary_cat": "math.GR",
    "submitted_at": "2009-01-02T15:11:50Z",
    "title_canon_sha256": "d824cce9ecf0b948d06e5c11b1585c042364c8d770fe0de6579b3a0f790f1ee8"
  },
  "schema_version": "1.0",
  "source": {
    "id": "0901.0244",
    "kind": "arxiv",
    "version": 3
  }
}