pith. sign in
Pith Number

pith:LG4ZC5QR

pith:2017:LG4ZC5QRB4DTPB32HXH2GAWCDY
not attested not anchored not stored refs pending

RatingScaleReduction package: stepwise rating scale item reduction without predictability loss

Alicja Wolny-Dominiak, Waldemar W. Koczkodaj

arxiv:1703.06826 v1 · 2017-03-16 · stat.CO

Add to your LaTeX paper
\usepackage{pith}
\pithnumber{LG4ZC5QRB4DTPB32HXH2GAWCDY}

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 2026-05-18T00:48:21.612539Z
Builder pith-number-builder-2026-05-17-v1
Signature Pith Ed25519 (pith-v1-2026-05) · public key
Schema pith-number/v1.0

Canonical hash

59b99176110f0737877a3dcfa302c21e1b01492755600567ae68295981abda32

Aliases

arxiv: 1703.06826 · arxiv_version: 1703.06826v1 · doi: 10.48550/arxiv.1703.06826 · pith_short_12: LG4ZC5QRB4DT · pith_short_16: LG4ZC5QRB4DTPB32 · pith_short_8: LG4ZC5QR
Agent API
Verify this Pith Number yourself
curl -sH 'Accept: application/ld+json' https://pith.science/pith/LG4ZC5QRB4DTPB32HXH2GAWCDY \
  | 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: 59b99176110f0737877a3dcfa302c21e1b01492755600567ae68295981abda32
Canonical record JSON
{
  "metadata": {
    "abstract_canon_sha256": "329b1997eb7fe34413bdeb51e88f6c0cb0737b3433c0b52701bf46a6e674e003",
    "cross_cats_sorted": [],
    "license": "http://creativecommons.org/licenses/by/4.0/",
    "primary_cat": "stat.CO",
    "submitted_at": "2017-03-16T14:09:50Z",
    "title_canon_sha256": "e998955b6b16dea5a7bd38e5dbe7c0229199431a8ddf75378d6415b48c829175"
  },
  "schema_version": "1.0",
  "source": {
    "id": "1703.06826",
    "kind": "arxiv",
    "version": 1
  }
}