Pith Number

pith:WEICU6JZ

pith:2026:WEICU6JZ5CEIDVZWDQPVG2UMNJ

not attested not anchored not stored refs pending

ECPO: Evidence-Coupled Policy Optimization for Evidence-Certified Candidate Ranking

Bokun Wang, Daren Zha, Jun Xiao, Miaobo Hu, Shuhao Hu, Xiaobo Guo, Xin Wang, Yina Sa

arxiv:2605.21993 v1 · 2026-05-21 · cs.AI · 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{WEICU6JZ5CEIDVZWDQPVG2UMNJ}

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	2026-05-22T01:04:19.379946Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

b1102a7939e88881d7361c1f536a8c6a4cea3d79d828b7c10b0acb7e1d16f601

Aliases

arxiv: 2605.21993 · arxiv_version: 2605.21993v1 · doi: 10.48550/arxiv.2605.21993 · pith_short_12: WEICU6JZ5CEI · pith_short_16: WEICU6JZ5CEIDVZW · pith_short_8: WEICU6JZ

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/WEICU6JZ5CEIDVZWDQPVG2UMNJ \
  | 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: b1102a7939e88881d7361c1f536a8c6a4cea3d79d828b7c10b0acb7e1d16f601

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "01f238d96a992c32792531007294fe6b807672e81abf43dedc05433c95a38f9f",
    "cross_cats_sorted": [
      "cs.LG"
    ],
    "license": "http://creativecommons.org/licenses/by/4.0/",
    "primary_cat": "cs.AI",
    "submitted_at": "2026-05-21T04:42:34Z",
    "title_canon_sha256": "15ea753a532bd089382994ed32262b35152f37aefb41c62c93942f39912149ca"
  },
  "schema_version": "1.0",
  "source": {
    "id": "2605.21993",
    "kind": "arxiv",
    "version": 1
  }
}