Pith Number

pith:FRVVFC35

pith:2009:FRVVFC356H7RXFYBLHSP5ZQW7K

not attested not anchored not stored refs pending

Locally minimal topological groups

Dikran Dikranjan, Lydia Au{\ss}enhofer, Mar\'ia Jes\'us Chasco, Xabier Dom\'inguez

arxiv:0912.2946 v2 · 2009-12-15 · math.GN

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

Add to your LaTeX paper

\usepackage{pith}
\pithnumber{FRVVFC356H7RXFYBLHSP5ZQW7K}

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	2026-05-18T01:09:24.167511Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

2c6b528b7df1ff1b970159e4fee616faab028ba9e84a8b9a05566a2d81d48f03

Aliases

arxiv: 0912.2946 · arxiv_version: 0912.2946v2 · doi: 10.48550/arxiv.0912.2946 · pith_short_12: FRVVFC356H7R · pith_short_16: FRVVFC356H7RXFYB · pith_short_8: FRVVFC35

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/FRVVFC356H7RXFYBLHSP5ZQW7K \
  | 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: 2c6b528b7df1ff1b970159e4fee616faab028ba9e84a8b9a05566a2d81d48f03

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "bc5783d0b38f37b2fb17296f8e538d6c99d9c993c293e7f273f2e95b9d2ad53c",
    "cross_cats_sorted": [],
    "license": "http://arxiv.org/licenses/nonexclusive-distrib/1.0/",
    "primary_cat": "math.GN",
    "submitted_at": "2009-12-15T16:45:03Z",
    "title_canon_sha256": "362f2bb65865e0ba8901a4a84ae4ebd0a9868e1196a5918152a0efbf0b22fddb"
  },
  "schema_version": "1.0",
  "source": {
    "id": "0912.2946",
    "kind": "arxiv",
    "version": 2
  }
}