Pith Number

pith:5UPULLWQ

pith:2017:5UPULLWQEC4IO4JWOHYPULHCNO

not attested not anchored not stored refs pending

Products of Hurewicz spaces in the Laver model

Du\v{s}an Repov\v{s}, Lyubomyr Zdomskyy

arxiv:1712.03899 v1 · 2017-12-11 · math.GN · math.LO

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

Add to your LaTeX paper

\usepackage{pith}
\pithnumber{5UPULLWQEC4IO4JWOHYPULHCNO}

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	2026-05-18T00:28:19.619034Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

ed1f45aed020b887713671f0fa2ce26b8e6c39c2bfd63b08b4374b84aadbe296

Aliases

arxiv: 1712.03899 · arxiv_version: 1712.03899v1 · doi: 10.48550/arxiv.1712.03899 · pith_short_12: 5UPULLWQEC4I · pith_short_16: 5UPULLWQEC4IO4JW · pith_short_8: 5UPULLWQ

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/5UPULLWQEC4IO4JWOHYPULHCNO \
  | 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: ed1f45aed020b887713671f0fa2ce26b8e6c39c2bfd63b08b4374b84aadbe296

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "b1edac7fa866f70d262a52b01dfeae92415fc8cac3f070afb3d2a5e86a73396a",
    "cross_cats_sorted": [
      "math.LO"
    ],
    "license": "http://arxiv.org/licenses/nonexclusive-distrib/1.0/",
    "primary_cat": "math.GN",
    "submitted_at": "2017-12-11T17:20:49Z",
    "title_canon_sha256": "158c628218d644a30b77235de9e0ad3eee594f2e48e4254637d8682f50514617"
  },
  "schema_version": "1.0",
  "source": {
    "id": "1712.03899",
    "kind": "arxiv",
    "version": 1
  }
}