Pith Number

pith:3TCYCP4P

pith:2019:3TCYCP4PNHV3EDRHKZ3JBTHVUI

not attested not anchored not stored refs pending

Hyperspaces of countable compacta

Krzysztof Omiljanowski, Pawe{\l} Krupski, Taras Banakh

arxiv:1908.02845 v2 · 2019-08-07 · 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{3TCYCP4PNHV3EDRHKZ3JBTHVUI}

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	2026-07-05T02:41:46.094849Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

dcc5813f8f69ebb20e27567690ccf5a22ebe1bc1ca643ded4ccdc877d7cfb013

Aliases

arxiv: 1908.02845 · arxiv_version: 1908.02845v2 · doi: 10.48550/arxiv.1908.02845 · pith_short_12: 3TCYCP4PNHV3 · pith_short_16: 3TCYCP4PNHV3EDRH · pith_short_8: 3TCYCP4P

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/3TCYCP4PNHV3EDRHKZ3JBTHVUI \
  | 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: dcc5813f8f69ebb20e27567690ccf5a22ebe1bc1ca643ded4ccdc877d7cfb013

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "64a76db6f3fecad5f17231e910fb918dbad87a408e68a485354a5c64ae1b67c3",
    "cross_cats_sorted": [],
    "license": "http://arxiv.org/licenses/nonexclusive-distrib/1.0/",
    "primary_cat": "math.GN",
    "submitted_at": "2019-08-07T21:23:58Z",
    "title_canon_sha256": "b3b1b938b17c48fc211216690dfa8c2e00916a229cd82f2c7fd52c99e44fec5e"
  },
  "schema_version": "1.0",
  "source": {
    "id": "1908.02845",
    "kind": "arxiv",
    "version": 2
  }
}