Pith Number

pith:UMTOE6L6

pith:2014:UMTOE6L6JG6RYNIQVS2JLL2KO6

not attested not anchored not stored refs pending

Finite Permutable Putcha Semigroups

Attila De\'ak, Attila Nagy

arxiv:1402.4939 v1 · 2014-02-20 · 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{UMTOE6L6JG6RYNIQVS2JLL2KO6}

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	2026-05-18T02:58:31.601720Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

a326e2797e49bd1c3510acb495af4a77bef86a3b6fe330ce9add4819ced9f8f4

Aliases

arxiv: 1402.4939 · arxiv_version: 1402.4939v1 · doi: 10.48550/arxiv.1402.4939 · pith_short_12: UMTOE6L6JG6R · pith_short_16: UMTOE6L6JG6RYNIQ · pith_short_8: UMTOE6L6

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/UMTOE6L6JG6RYNIQVS2JLL2KO6 \
  | 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: a326e2797e49bd1c3510acb495af4a77bef86a3b6fe330ce9add4819ced9f8f4

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "cdc5eb0343ab4aa51f9ee7a23dfbe172a856d12651846e3f7c8ddf97dd9e0ed6",
    "cross_cats_sorted": [],
    "license": "http://arxiv.org/licenses/nonexclusive-distrib/1.0/",
    "primary_cat": "math.GR",
    "submitted_at": "2014-02-20T09:32:00Z",
    "title_canon_sha256": "98c5595103c3d50461193ff4d4adc3be6613ea6190c7e24fc244d2d3bbaec229"
  },
  "schema_version": "1.0",
  "source": {
    "id": "1402.4939",
    "kind": "arxiv",
    "version": 1
  }
}