Pith Number

pith:OLTSH3A6

pith:2009:OLTSH3A6DLM67X4HI24XJYXHV2

not attested not anchored not stored refs pending

Connected economically metrizable spaces

M. R. W\'ojcik, M. Vovk, T. Banakh

arxiv:0901.0236 v4 · 2009-01-02 · math.GN · math.MG

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

Add to your LaTeX paper

\usepackage{pith}
\pithnumber{OLTSH3A6DLM67X4HI24XJYXHV2}

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	2026-05-18T04:11:29.202051Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

72e723ec1e1ad9efdf8746b974e2e7ae9c74a1caf4ef70cf3fbad61d5dda873b

Aliases

arxiv: 0901.0236 · arxiv_version: 0901.0236v4 · doi: 10.48550/arxiv.0901.0236 · pith_short_12: OLTSH3A6DLM6 · pith_short_16: OLTSH3A6DLM67X4H · pith_short_8: OLTSH3A6

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/OLTSH3A6DLM67X4HI24XJYXHV2 \
  | 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: 72e723ec1e1ad9efdf8746b974e2e7ae9c74a1caf4ef70cf3fbad61d5dda873b

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "936167f3550c113653b34490165a1c44a42303acc90a87b23e2caf6fe571deed",
    "cross_cats_sorted": [
      "math.MG"
    ],
    "license": "http://arxiv.org/licenses/nonexclusive-distrib/1.0/",
    "primary_cat": "math.GN",
    "submitted_at": "2009-01-02T12:09:43Z",
    "title_canon_sha256": "0c77457edd000c041f82f30fd7b9bdc606c76f27c7a07bf82fa77c4afcbc77ff"
  },
  "schema_version": "1.0",
  "source": {
    "id": "0901.0236",
    "kind": "arxiv",
    "version": 4
  }
}