Pith Number

pith:7BRHUFFS

pith:2018:7BRHUFFSGUY3Z4KYDULXDBJPR6

not attested not anchored not stored refs pending

On a conjecture for $\aleph_0$-bounded groups

Marion Scheepers

arxiv:1808.07613 v1 · 2018-08-23 · math.LO · 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{7BRHUFFSGUY3Z4KYDULXDBJPR6}

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	2026-05-18T00:07:26.750838Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

f8627a14b23531bcf1581d1771852f8fae72228fecd6e2fe8dca4284db339ea6

Aliases

arxiv: 1808.07613 · arxiv_version: 1808.07613v1 · doi: 10.48550/arxiv.1808.07613 · pith_short_12: 7BRHUFFSGUY3 · pith_short_16: 7BRHUFFSGUY3Z4KY · pith_short_8: 7BRHUFFS

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/7BRHUFFSGUY3Z4KYDULXDBJPR6 \
  | 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: f8627a14b23531bcf1581d1771852f8fae72228fecd6e2fe8dca4284db339ea6

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "6c8ebae877265d0b08621bb99bbbf6b1193d55bbce59aeeda18b13440bf22ca0",
    "cross_cats_sorted": [
      "math.GN"
    ],
    "license": "http://arxiv.org/licenses/nonexclusive-distrib/1.0/",
    "primary_cat": "math.LO",
    "submitted_at": "2018-08-23T03:02:03Z",
    "title_canon_sha256": "36e8200b1f8209e727d33192f8a59656b4d0f2250e1fe4f54a090f2b397e4d39"
  },
  "schema_version": "1.0",
  "source": {
    "id": "1808.07613",
    "kind": "arxiv",
    "version": 1
  }
}