Pith Number

pith:KEIGG2HV

pith:2026:KEIGG2HVE7P7WFJP36PH7MPNN2

not attested not anchored not stored refs pending

Inverse Suitability: Identifying Condition Difficulty and Rider Skill from Behavioural Outcomes via Continuous-Item Response Theory

Fabio Carucci

arxiv:2607.01961 v1 · 2026-07-02 · stat.AP · physics.ao-ph · 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{KEIGG2HVE7P7WFJP36PH7MPNN2}

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	2026-07-03T01:17:35.319700Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

51106368f527dffb152fdf9e7fb1ed6e8ef483b820c642996f7ab188f77efa51

Aliases

arxiv: 2607.01961 · arxiv_version: 2607.01961v1 · doi: 10.48550/arxiv.2607.01961 · pith_short_12: KEIGG2HVE7P7 · pith_short_16: KEIGG2HVE7P7WFJP · pith_short_8: KEIGG2HV

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/KEIGG2HVE7P7WFJP36PH7MPNN2 \
  | 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: 51106368f527dffb152fdf9e7fb1ed6e8ef483b820c642996f7ab188f77efa51

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "c130f41bb4debcc9014b3fc735615db7cd0e9b65e66fcadb67fae78886f50d31",
    "cross_cats_sorted": [
      "physics.ao-ph",
      "stat.ME"
    ],
    "license": "http://creativecommons.org/licenses/by/4.0/",
    "primary_cat": "stat.AP",
    "submitted_at": "2026-07-02T09:54:54Z",
    "title_canon_sha256": "208025315af82ca0b4ef6044f7c19cb299f48d94ce79c42c29a70b99fb4d818a"
  },
  "schema_version": "1.0",
  "source": {
    "id": "2607.01961",
    "kind": "arxiv",
    "version": 1
  }
}