Pith Number

pith:MZ5EQGYX

pith:2025:MZ5EQGYXAHND6DSZ45P74YE3N3

not attested not anchored not stored refs pending

FreePRM: Training Process Reward Models Without Ground Truth Process Labels

Chuang Liu, Lin Sun, Ning Wu, Tao Yang, Weijia Lu, Xiaofeng Ma

arxiv:2506.03570 v1 · 2025-06-04 · cs.CL

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

Add to your LaTeX paper

\usepackage{pith}
\pithnumber{MZ5EQGYXAHND6DSZ45P74YE3N3}

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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.

Cited by

3 papers in Pith

Trust Region On-Policy Distillation

Process Rewards with Learned Reliability

Unsupervised Process Reward Models

Receipt and verification

First computed	2026-07-05T11:15:30.445435Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

667a481b1701da3f0e59e75ffe609b6ed3a8d27e5286d620f3480cbff1159c35

Aliases

arxiv: 2506.03570 · arxiv_version: 2506.03570v1 · doi: 10.48550/arxiv.2506.03570 · pith_short_12: MZ5EQGYXAHND · pith_short_16: MZ5EQGYXAHND6DSZ · pith_short_8: MZ5EQGYX

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/MZ5EQGYXAHND6DSZ45P74YE3N3 \
  | 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: 667a481b1701da3f0e59e75ffe609b6ed3a8d27e5286d620f3480cbff1159c35

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "888a65e94df13a78e49594b137bf0ea738f0673e2c4cd8198b23dd6625aa0554",
    "cross_cats_sorted": [],
    "license": "http://arxiv.org/licenses/nonexclusive-distrib/1.0/",
    "primary_cat": "cs.CL",
    "submitted_at": "2025-06-04T04:33:53Z",
    "title_canon_sha256": "3660c5cf844427ea3f4cc908dbe1109ef930342390f38113217a5c99f186c1a4"
  },
  "schema_version": "1.0",
  "source": {
    "id": "2506.03570",
    "kind": "arxiv",
    "version": 1
  }
}