Pith Number

pith:OM7MQLR2

pith:2017:OM7MQLR2EHRM7SFS5M6AIDYKN2

not attested not anchored not stored refs pending

Simple groups separated by finiteness properties

Matthew C. B. Zaremsky, Rachel Skipper, Stefan Witzel

arxiv:1712.05361 v3 · 2017-12-14 · math.GR

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

Add to your LaTeX paper

\usepackage{pith}
\pithnumber{OM7MQLR2EHRM7SFS5M6AIDYKN2}

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	2026-05-18T00:02:45.375775Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

733ec82e3a21e2cfc8b2eb3c040f0a6e814a00c1cf326ffb8d5c502cc7865996

Aliases

arxiv: 1712.05361 · arxiv_version: 1712.05361v3 · doi: 10.48550/arxiv.1712.05361 · pith_short_12: OM7MQLR2EHRM · pith_short_16: OM7MQLR2EHRM7SFS · pith_short_8: OM7MQLR2

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/OM7MQLR2EHRM7SFS5M6AIDYKN2 \
  | 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: 733ec82e3a21e2cfc8b2eb3c040f0a6e814a00c1cf326ffb8d5c502cc7865996

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "2d050e88f5791d3541730e15933b5bccb4b5c003b7c2134fc1e08ea1a90e7ac0",
    "cross_cats_sorted": [],
    "license": "http://arxiv.org/licenses/nonexclusive-distrib/1.0/",
    "primary_cat": "math.GR",
    "submitted_at": "2017-12-14T17:41:39Z",
    "title_canon_sha256": "5e7ff49e662dbbe0de1399d73f8eb431db380b5a436607daeb12728bbb52d6d0"
  },
  "schema_version": "1.0",
  "source": {
    "id": "1712.05361",
    "kind": "arxiv",
    "version": 3
  }
}