Pith Number

pith:B3VLUOUW

pith:2013:B3VLUOUWPTWYUT3JMML7VBGO34

not attested not anchored not stored refs pending

The Katowice problem and autohomeomorphisms of $\omega^*$

Alan Dow, David Chodounsky, Harm de Vries, Klaas Pieter Hart

arxiv:1307.3930 v2 · 2013-07-15 · 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{B3VLUOUWPTWYUT3JMML7VBGO34}

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	2026-05-18T00:56:12.751834Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

0eeaba3a967ced8a4f696317fa84cedf00e71bb9c78c3f778fa91db0e6d0b026

Aliases

arxiv: 1307.3930 · arxiv_version: 1307.3930v2 · doi: 10.48550/arxiv.1307.3930 · pith_short_12: B3VLUOUWPTWY · pith_short_16: B3VLUOUWPTWYUT3J · pith_short_8: B3VLUOUW

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/B3VLUOUWPTWYUT3JMML7VBGO34 \
  | 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: 0eeaba3a967ced8a4f696317fa84cedf00e71bb9c78c3f778fa91db0e6d0b026

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "3c3273f3b2a64c19b7d6713c9c67af085f726a8188aae584aa6e4dedec620010",
    "cross_cats_sorted": [
      "math.LO"
    ],
    "license": "http://arxiv.org/licenses/nonexclusive-distrib/1.0/",
    "primary_cat": "math.GN",
    "submitted_at": "2013-07-15T13:28:36Z",
    "title_canon_sha256": "81895d11efa325fe9e4d5518be4ce1ea770ef9cb66867c716b82013b2b2f714f"
  },
  "schema_version": "1.0",
  "source": {
    "id": "1307.3930",
    "kind": "arxiv",
    "version": 2
  }
}