Pith Number

pith:3ORBVA65

pith:2025:3ORBVA65XWAFYMA7PMTX5ASJNS

not attested not anchored not stored refs pending

LongPO: Long Context Self-Evolution of Large Language Models through Short-to-Long Preference Optimization

Guanzheng Chen, Lidong Bing, Michael Qizhe Shieh, Xin Li

arxiv:2502.13922 v3 · 2025-02-19 · cs.CL · 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{3ORBVA65XWAFYMA7PMTX5ASJNS}

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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

2 papers in Pith

Internalized Reasoning for Long-Context Visual Document Understanding

OPSDL: On-Policy Self-Distillation for Long-Context Language Models

Receipt and verification

First computed	2026-07-05T10:22:13.890130Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

dba21a83ddbd805c301f7b277e82496c86f1262783fece5872e904d588fc09fa

Aliases

arxiv: 2502.13922 · arxiv_version: 2502.13922v3 · doi: 10.48550/arxiv.2502.13922 · pith_short_12: 3ORBVA65XWAF · pith_short_16: 3ORBVA65XWAFYMA7 · pith_short_8: 3ORBVA65

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/3ORBVA65XWAFYMA7PMTX5ASJNS \
  | 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: dba21a83ddbd805c301f7b277e82496c86f1262783fece5872e904d588fc09fa

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "0d6324dc1e3ecb406242777f4bc6085df3735ad722eab9a939698cabbc4287f0",
    "cross_cats_sorted": [
      "cs.LG"
    ],
    "license": "http://creativecommons.org/licenses/by/4.0/",
    "primary_cat": "cs.CL",
    "submitted_at": "2025-02-19T17:59:03Z",
    "title_canon_sha256": "38bc3f62012bef4e4b634f51a56d74e4ac7aabe601e80e019d9387130218958b"
  },
  "schema_version": "1.0",
  "source": {
    "id": "2502.13922",
    "kind": "arxiv",
    "version": 3
  }
}