Pith Number

pith:I6TKDVFR

pith:2026:I6TKDVFRCFIDKY7GEJQLONBCEW

not attested not anchored not stored refs pending

QLPO: Quadrant-weighted Sampling for Length-aware Policy Optimization

Bin Cui, Siqi Chen, Siwei Chen, Xupeng Miao

arxiv:2607.21793 v1 · 2026-07-23 · 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{I6TKDVFRCFIDKY7GEJQLONBCEW}

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	2026-07-27T00:20:21.303841Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

47a6a1d4b111503563e62260b7342225880eca1e0877c526517a9e16cd32f94a

Aliases

arxiv: 2607.21793 · arxiv_version: 2607.21793v1 · doi: 10.48550/arxiv.2607.21793 · pith_short_12: I6TKDVFRCFID · pith_short_16: I6TKDVFRCFIDKY7G · pith_short_8: I6TKDVFR

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/I6TKDVFRCFIDKY7GEJQLONBCEW \
  | 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: 47a6a1d4b111503563e62260b7342225880eca1e0877c526517a9e16cd32f94a

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "3c5ad1ddbb5d3001abd9c5a9418dc72319a239ce7461ccd1f563fb7d21e1c0c2",
    "cross_cats_sorted": [],
    "license": "http://creativecommons.org/licenses/by/4.0/",
    "primary_cat": "cs.AI",
    "submitted_at": "2026-07-23T20:20:56Z",
    "title_canon_sha256": "6885a6c1c6d18056bd1ed04a1d2dce84ea7ce076c9b18da769bcf0b39fc5c0ec"
  },
  "schema_version": "1.0",
  "source": {
    "id": "2607.21793",
    "kind": "arxiv",
    "version": 1
  }
}