Pith Number

pith:MYBNOQG5

pith:2009:MYBNOQG56DOSVIEYEQ6E6FV7F3

not attested not anchored not stored refs pending

A topological characterization of LF-spaces

Dusan Repovs, Taras Banakh

arxiv:0911.0609 v3 · 2009-11-03 · math.GN · math.FA

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

Add to your LaTeX paper

\usepackage{pith}
\pithnumber{MYBNOQG56DOSVIEYEQ6E6FV7F3}

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	2026-05-18T04:02:54.578280Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

6602d740ddf0dd2aa098243c4f16bf2ee608751fa8f7312ee1b3ac198c02c9f4

Aliases

arxiv: 0911.0609 · arxiv_version: 0911.0609v3 · doi: 10.48550/arxiv.0911.0609 · pith_short_12: MYBNOQG56DOS · pith_short_16: MYBNOQG56DOSVIEY · pith_short_8: MYBNOQG5

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/MYBNOQG56DOSVIEYEQ6E6FV7F3 \
  | 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: 6602d740ddf0dd2aa098243c4f16bf2ee608751fa8f7312ee1b3ac198c02c9f4

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "37501dd1e18a8616c1d5e7a74ff59f79b12403ddec54159ed64f7d08dc9bd872",
    "cross_cats_sorted": [
      "math.FA"
    ],
    "license": "http://arxiv.org/licenses/nonexclusive-distrib/1.0/",
    "primary_cat": "math.GN",
    "submitted_at": "2009-11-03T16:33:12Z",
    "title_canon_sha256": "936db60c09daa16822bdd5b73cfce2cbb12b53998a8170320a37744765e0d487"
  },
  "schema_version": "1.0",
  "source": {
    "id": "0911.0609",
    "kind": "arxiv",
    "version": 3
  }
}