Pith Number

pith:RUZSCUH5

pith:2008:RUZSCUH5EOVOUIVMFTNBDXJ6HO

not attested not anchored not stored refs pending

Rough Sets Determined by Quasiorders

Jouni J\"arvinen, Laura Veres, S\'andor Radeleczki

arxiv:0810.0633 v2 · 2008-10-03 · 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{RUZSCUH5EOVOUIVMFTNBDXJ6HO}

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	2026-05-18T02:55:39.761337Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

8d332150fd23aaea22ac2cda11dd3e3bb765d75af5f0492c964694eef1b74349

Aliases

arxiv: 0810.0633 · arxiv_version: 0810.0633v2 · doi: 10.48550/arxiv.0810.0633 · pith_short_12: RUZSCUH5EOVO · pith_short_16: RUZSCUH5EOVOUIVM · pith_short_8: RUZSCUH5

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/RUZSCUH5EOVOUIVMFTNBDXJ6HO \
  | 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: 8d332150fd23aaea22ac2cda11dd3e3bb765d75af5f0492c964694eef1b74349

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "a9c08df642c21af212263fad22f12d8749d48a465a694ddee14350e474bd63e5",
    "cross_cats_sorted": [],
    "license": "http://arxiv.org/licenses/nonexclusive-distrib/1.0/",
    "primary_cat": "math.RA",
    "submitted_at": "2008-10-03T16:38:44Z",
    "title_canon_sha256": "638e5b783a5c9e1440d3b049742c5c78b2cf38c7a93ae16c9a950adff756904e"
  },
  "schema_version": "1.0",
  "source": {
    "id": "0810.0633",
    "kind": "arxiv",
    "version": 2
  }
}