Pith Number

pith:RSFPCKW4

pith:2019:RSFPCKW4CL6MG6ZANMFGKIQTRQ

not attested not anchored not stored refs pending

Skew braces of size $pq$

E. Acri, M. Bonatto

arxiv:1908.03228 v3 · 2019-08-08 · math.GR · math.QA · math.RA

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

Add to your LaTeX paper

\usepackage{pith}
\pithnumber{RSFPCKW4CL6MG6ZANMFGKIQTRQ}

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	2026-07-05T01:09:56.115281Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

8c8af12adc12fcc37b206b0a6522138c02413b5cddbb00f148b2643eee2c167c

Aliases

arxiv: 1908.03228 · arxiv_version: 1908.03228v3 · doi: 10.48550/arxiv.1908.03228 · pith_short_12: RSFPCKW4CL6M · pith_short_16: RSFPCKW4CL6MG6ZA · pith_short_8: RSFPCKW4

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/RSFPCKW4CL6MG6ZANMFGKIQTRQ \
  | 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: 8c8af12adc12fcc37b206b0a6522138c02413b5cddbb00f148b2643eee2c167c

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "bfec833ec42ace8be1a344261934bd6d95ac1b9cc73fbd9ff96cc02507bdd42c",
    "cross_cats_sorted": [
      "math.QA",
      "math.RA"
    ],
    "license": "http://arxiv.org/licenses/nonexclusive-distrib/1.0/",
    "primary_cat": "math.GR",
    "submitted_at": "2019-08-08T18:09:58Z",
    "title_canon_sha256": "f7849baf28bd92a5f5b977e26161109a8579bb2f8a40e31f5c1282e36e16f9a6"
  },
  "schema_version": "1.0",
  "source": {
    "id": "1908.03228",
    "kind": "arxiv",
    "version": 3
  }
}