Pith Number

pith:T7YFYCYO

pith:2026:T7YFYCYO2YYQ6UFB3T7ABIEHEM

not attested not anchored not stored refs pending

DelTA: Discriminative Token Credit Assignment for Reinforcement Learning from Verifiable Rewards

Kaiyi Zhang, Wei Wu, Yankai Lin

arxiv:2605.21467 v1 · 2026-05-20 · cs.LG · 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{T7YFYCYO2YYQ6UFB3T7ABIEHEM}

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	2026-05-21T02:05:38.631368Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

9ff05c0b0ed6310f50a1dcfe00a0872314d3b5a13ed24910086f4512fc037caf

Aliases

arxiv: 2605.21467 · arxiv_version: 2605.21467v1 · doi: 10.48550/arxiv.2605.21467 · pith_short_12: T7YFYCYO2YYQ · pith_short_16: T7YFYCYO2YYQ6UFB · pith_short_8: T7YFYCYO

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/T7YFYCYO2YYQ6UFB3T7ABIEHEM \
  | 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: 9ff05c0b0ed6310f50a1dcfe00a0872314d3b5a13ed24910086f4512fc037caf

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "d8088f44a0ea1d6db034e3b3623cc744fedbd6bd33900429c5aabf7048f5fc57",
    "cross_cats_sorted": [
      "cs.CL"
    ],
    "license": "http://creativecommons.org/licenses/by-nc-nd/4.0/",
    "primary_cat": "cs.LG",
    "submitted_at": "2026-05-20T17:53:09Z",
    "title_canon_sha256": "4e494ea4f62f7e37e86d66c88d643077198d73723e3a0be0ae694c86280725e7"
  },
  "schema_version": "1.0",
  "source": {
    "id": "2605.21467",
    "kind": "arxiv",
    "version": 1
  }
}