Pith Number

pith:OFT3HZQ7

pith:2026:OFT3HZQ7BVZKEDQE5LVMKDHIOY

not attested not anchored not stored refs pending

MDP-GRPO: Stabilized Group Relative Policy Optimization for Multi-Constraint Instruction Following

Heshaam Faili, Mohammad Javad Dousti, Mohammad Mahdi Salmani-Zarchi, Zahra Rahimi

arxiv:2606.06058 v1 · 2026-06-04 · cs.LG · cs.AI · 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{OFT3HZQ7BVZKEDQE5LVMKDHIOY}

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	2026-06-05T01:15:31.760806Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

7167b3e61f0d72a20e04eaeac50ce876153f4c348d46c5c4fa60197fca09efed

Aliases

arxiv: 2606.06058 · arxiv_version: 2606.06058v1 · doi: 10.48550/arxiv.2606.06058 · pith_short_12: OFT3HZQ7BVZK · pith_short_16: OFT3HZQ7BVZKEDQE · pith_short_8: OFT3HZQ7

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/OFT3HZQ7BVZKEDQE5LVMKDHIOY \
  | 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: 7167b3e61f0d72a20e04eaeac50ce876153f4c348d46c5c4fa60197fca09efed

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "30b141d9574ac9f637ed0bc5d879aa9a5fe7fe9930444e7b3326427693830873",
    "cross_cats_sorted": [
      "cs.AI",
      "cs.CL"
    ],
    "license": "http://creativecommons.org/licenses/by/4.0/",
    "primary_cat": "cs.LG",
    "submitted_at": "2026-06-04T11:58:59Z",
    "title_canon_sha256": "385b174d97b67f97953c411c616d24772f92d5ff5ae8d68b8bfdb6c065de6fd0"
  },
  "schema_version": "1.0",
  "source": {
    "id": "2606.06058",
    "kind": "arxiv",
    "version": 1
  }
}