Pith Number

pith:3EQ7MLOC

pith:2026:3EQ7MLOC4RV3MQCFBAP42EF7CX

not attested not anchored not stored refs pending

Can We Trust Item Response Theory for AI Evaluation?

Han Jiang, Jinwen Luo, Sunbeom Kwon, Susu Zhang, Ziang Xiao

arxiv:2607.15190 v1 · 2026-07-16 · cs.AI

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

Add to your LaTeX paper

\usepackage{pith}
\pithnumber{3EQ7MLOC4RV3MQCFBAP42EF7CX}

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	2026-07-17T01:22:13.604946Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

d921f62dc2e46bb64045081fcd10bf15ff3ca6a819c0474c285369775ca6efa7

Aliases

arxiv: 2607.15190 · arxiv_version: 2607.15190v1 · doi: 10.48550/arxiv.2607.15190 · pith_short_12: 3EQ7MLOC4RV3 · pith_short_16: 3EQ7MLOC4RV3MQCF · pith_short_8: 3EQ7MLOC

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/3EQ7MLOC4RV3MQCFBAP42EF7CX \
  | 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: d921f62dc2e46bb64045081fcd10bf15ff3ca6a819c0474c285369775ca6efa7

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "3c54274aded803830a79cab6e31844fb7ca989903c8b98530535dba3aff104c6",
    "cross_cats_sorted": [],
    "license": "http://creativecommons.org/licenses/by-nc-sa/4.0/",
    "primary_cat": "cs.AI",
    "submitted_at": "2026-07-16T16:44:40Z",
    "title_canon_sha256": "655e65df71376c05cc6f46cf05972907e55f59e8b12dcfdbc89d18d67f0d1131"
  },
  "schema_version": "1.0",
  "source": {
    "id": "2607.15190",
    "kind": "arxiv",
    "version": 1
  }
}