Pith Number

pith:QOS27HJH

pith:2011:QOS27HJHBOKLMTOIKOAGK3NJMG

not attested not anchored not stored refs pending

Locally continuously perfect groups of homeomorphisms

Tomasz Rybicki

arxiv:1104.2223 v1 · 2011-04-12 · math.DG

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

Add to your LaTeX paper

\usepackage{pith}
\pithnumber{QOS27HJHBOKLMTOIKOAGK3NJMG}

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	2026-05-18T04:24:35.710515Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

83a5af9d270b94b64dc85380656da961ba5ba548b1a8520e64d052aa079b21b5

Aliases

arxiv: 1104.2223 · arxiv_version: 1104.2223v1 · doi: 10.48550/arxiv.1104.2223 · pith_short_12: QOS27HJHBOKL · pith_short_16: QOS27HJHBOKLMTOI · pith_short_8: QOS27HJH

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/QOS27HJHBOKLMTOIKOAGK3NJMG \
  | 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: 83a5af9d270b94b64dc85380656da961ba5ba548b1a8520e64d052aa079b21b5

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "7dbcf2d72483a5dcc62996a730a68e0224ad92e100a227f444609d1a21ceb4e9",
    "cross_cats_sorted": [],
    "license": "http://arxiv.org/licenses/nonexclusive-distrib/1.0/",
    "primary_cat": "math.DG",
    "submitted_at": "2011-04-12T14:21:19Z",
    "title_canon_sha256": "5f18e4b55418f780cbebd9981506ba7ebc75833843dfe65f215e19516da6984b"
  },
  "schema_version": "1.0",
  "source": {
    "id": "1104.2223",
    "kind": "arxiv",
    "version": 1
  }
}