Pith Number

pith:ZKKTKJQF

pith:2019:ZKKTKJQFOFNUHROZPSHWDRQTZI

not attested not anchored not stored refs pending

What is an Ordinal Latent Trait Model?

Gerhard Tutz

arxiv:1902.06303 v1 · 2019-02-17 · stat.ME

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

Add to your LaTeX paper

\usepackage{pith}
\pithnumber{ZKKTKJQFOFNUHROZPSHWDRQTZI}

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	2026-05-17T23:53:45.924758Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

ca95352605715b43c5d97c8f61c613ca1b4aeacfaa083b55f815210685845b23

Aliases

arxiv: 1902.06303 · arxiv_version: 1902.06303v1 · doi: 10.48550/arxiv.1902.06303 · pith_short_12: ZKKTKJQFOFNU · pith_short_16: ZKKTKJQFOFNUHROZ · pith_short_8: ZKKTKJQF

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/ZKKTKJQFOFNUHROZPSHWDRQTZI \
  | 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: ca95352605715b43c5d97c8f61c613ca1b4aeacfaa083b55f815210685845b23

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "1c4749a62e006cb98aeb6b4e5b62904084d7f3bb86cf76a491baaf45fb3b5fca",
    "cross_cats_sorted": [],
    "license": "http://arxiv.org/licenses/nonexclusive-distrib/1.0/",
    "primary_cat": "stat.ME",
    "submitted_at": "2019-02-17T18:16:33Z",
    "title_canon_sha256": "85e3a6a55ea207c94e0a963ac280c33e06ec973a508dc61367a108bcdc077472"
  },
  "schema_version": "1.0",
  "source": {
    "id": "1902.06303",
    "kind": "arxiv",
    "version": 1
  }
}