Pith Number

pith:N7H6DRX7

pith:2026:N7H6DRX7YQT352CQZUIOFTLP3G

not attested not anchored not stored refs pending

CUPID in the Model Zoo: Online Matchmaking for Selecting Your Dream LLM

Ransalu Senanayake, Son Nguyen, Xinyuan Liu

arxiv:2606.00846 v1 · 2026-05-30 · cs.LG

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

Add to your LaTeX paper

\usepackage{pith}
\pithnumber{N7H6DRX7YQT352CQZUIOFTLP3G}

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	2026-06-02T01:04:07.465270Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

6fcfe1c6ffc427bee850cd10e2cd6fd995506dcd45990429d9224f263fde1f44

Aliases

arxiv: 2606.00846 · arxiv_version: 2606.00846v1 · doi: 10.48550/arxiv.2606.00846 · pith_short_12: N7H6DRX7YQT3 · pith_short_16: N7H6DRX7YQT352CQ · pith_short_8: N7H6DRX7

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/N7H6DRX7YQT352CQZUIOFTLP3G \
  | 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: 6fcfe1c6ffc427bee850cd10e2cd6fd995506dcd45990429d9224f263fde1f44

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "f1d188a89006fe5a5e180df6430fe13af8a3d37f73f2cddc3c665085e6adc3d6",
    "cross_cats_sorted": [],
    "license": "http://creativecommons.org/licenses/by/4.0/",
    "primary_cat": "cs.LG",
    "submitted_at": "2026-05-30T18:47:03Z",
    "title_canon_sha256": "7c13675db658c7ab21e7571fa95e6b80ccc00e7b697aafe86df03e0a848c2782"
  },
  "schema_version": "1.0",
  "source": {
    "id": "2606.00846",
    "kind": "arxiv",
    "version": 1
  }
}