Pith Number

pith:DE3O62I4

pith:2017:DE3O62I4OFO4HU6RI5LJIW4GUV

not attested not anchored not stored refs pending

The Separable Quotient Problem for Topological Groups

Arkady G. Leiderman, Mikhail G. Tkachenko, Sidney A. Morris

arxiv:1707.09546 v1 · 2017-07-29 · 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{DE3O62I4OFO4HU6RI5LJIW4GUV}

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	2026-05-18T00:39:10.952464Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

1936ef691c715dc3d3d14756945b86a558ac2dbe2481cc919d9ae9a0485c199a

Aliases

arxiv: 1707.09546 · arxiv_version: 1707.09546v1 · doi: 10.48550/arxiv.1707.09546 · pith_short_12: DE3O62I4OFO4 · pith_short_16: DE3O62I4OFO4HU6R · pith_short_8: DE3O62I4

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/DE3O62I4OFO4HU6RI5LJIW4GUV \
  | 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: 1936ef691c715dc3d3d14756945b86a558ac2dbe2481cc919d9ae9a0485c199a

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "e5372ae93fbb219412ec01eaa60d98e1e429236d51623976dea56aaa52c850cd",
    "cross_cats_sorted": [],
    "license": "http://arxiv.org/licenses/nonexclusive-distrib/1.0/",
    "primary_cat": "math.GN",
    "submitted_at": "2017-07-29T18:05:33Z",
    "title_canon_sha256": "d2766d8d85b18c1bfc915f6717273138655525315a1624ae621d1053c1e7e1de"
  },
  "schema_version": "1.0",
  "source": {
    "id": "1707.09546",
    "kind": "arxiv",
    "version": 1
  }
}