Pith Number

pith:TQLCBNYL

pith:2026:TQLCBNYLDVDBILXDGTAD5AVTHT

not attested not anchored not stored refs pending

Sparsity Curse: Understanding RLVR Model Parameter Space from Model Merging

Chenrui Wu, Haishuai Wang, Jiajun Bu, Jiangchuan Liu, Zexi Li

arxiv:2606.18521 v1 · 2026-06-16 · cs.LG · 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{TQLCBNYLDVDBILXDGTAD5AVTHT}

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	2026-06-19T16:11:39.919611Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

9c1620b70b1d46142ee334c03e82b33cf1f66a1a69a9a3c7e08a19cb63d891f7

Aliases

arxiv: 2606.18521 · arxiv_version: 2606.18521v1 · doi: 10.48550/arxiv.2606.18521 · pith_short_12: TQLCBNYLDVDB · pith_short_16: TQLCBNYLDVDBILXD · pith_short_8: TQLCBNYL

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/TQLCBNYLDVDBILXDGTAD5AVTHT \
  | 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: 9c1620b70b1d46142ee334c03e82b33cf1f66a1a69a9a3c7e08a19cb63d891f7

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "25a51ee8f8b3c7cbcca2f6e0faba7dacdf4532c27d3f0d3b76d502ca33cedbc7",
    "cross_cats_sorted": [
      "cs.AI"
    ],
    "license": "http://arxiv.org/licenses/nonexclusive-distrib/1.0/",
    "primary_cat": "cs.LG",
    "submitted_at": "2026-06-16T22:22:40Z",
    "title_canon_sha256": "031e6f7009980e9a4e0a87ff03aeae43d0678992e58c436d4155c787e552e2c4"
  },
  "schema_version": "1.0",
  "source": {
    "id": "2606.18521",
    "kind": "arxiv",
    "version": 1
  }
}