Pith Number

pith:HIYLGXK2

pith:2025:HIYLGXK2R2ZG62FZN77UQP2QS3

not attested not anchored not stored refs pending

LongAttn: Selecting Long-context Training Data via Token-level Attention

Dawei Zhu, Guangxiang Zhao, Junfeng Ran, Lin Sun, Longyun Wu, Sujian Li, Xiangyu Wong, Zhuocheng Yu

arxiv:2502.16860 v2 · 2025-02-24 · 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{HIYLGXK2R2ZG62FZN77UQP2QS3}

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.

Cited by

1 paper in Pith

Modular Techniques for Synthetic Long-Context Data Generation in Language Model Training and Evaluation

Receipt and verification

First computed	2026-07-05T10:21:07.641189Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

3a30b35d5a8eb26f68b96fff483f5096e1bb746d2dd611f5e067d684dafc5a0b

Aliases

arxiv: 2502.16860 · arxiv_version: 2502.16860v2 · doi: 10.48550/arxiv.2502.16860 · pith_short_12: HIYLGXK2R2ZG · pith_short_16: HIYLGXK2R2ZG62FZ · pith_short_8: HIYLGXK2

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/HIYLGXK2R2ZG62FZN77UQP2QS3 \
  | 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: 3a30b35d5a8eb26f68b96fff483f5096e1bb746d2dd611f5e067d684dafc5a0b

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "16341c8f94343825aa597b6cffe50f8f7e139b019ed0a44a189916b481ad0fd1",
    "cross_cats_sorted": [],
    "license": "http://arxiv.org/licenses/nonexclusive-distrib/1.0/",
    "primary_cat": "cs.CL",
    "submitted_at": "2025-02-24T05:51:53Z",
    "title_canon_sha256": "c780f510d689dd90f51b1602a19baf6dacca04be7c08cec46dc9e03a38d99f69"
  },
  "schema_version": "1.0",
  "source": {
    "id": "2502.16860",
    "kind": "arxiv",
    "version": 2
  }
}