Pith Number

pith:F7LOUTKT

pith:2025:F7LOUTKTG5QO3LSAS7SZ7N5BPL

not attested not anchored not stored refs pending

FlexPrefill: A Context-Aware Sparse Attention Mechanism for Efficient Long-Sequence Inference

Jianqiao Lu, Xunhao Lai, Xun Zhou, Yao Luo, Yiyuan Ma

arxiv:2502.20766 v1 · 2025-02-28 · cs.LG · cs.CL

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\usepackage{pith}
\pithnumber{F7LOUTKTG5QO3LSAS7SZ7N5BPL}

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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

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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

17 papers in Pith

Prefilling-dLLM: Predictive Prefilling for Long-Context Inference in Diffusion Language Models

SIFT: Selective-Index For Fast Compute of RAG Prefill by Exploiting Attention Invariance

LEDGER: Scaling Agentic Document Editing with Dependency-aware Graph Retrieval

DFSAttn: Dynamic Fine-grained Sparse Attention for Efficient Video Generation

RAT+: Train Dense, Infer Sparse -- Recurrence Augmented Attention for Dilated Inference

Receipt and verification

First computed	2026-07-05T10:21:39.321944Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

2fd6ea4d533760edae4097e59fb7a17accd6771823e593938c74e778c3cd2cdf

Aliases

arxiv: 2502.20766 · arxiv_version: 2502.20766v1 · doi: 10.48550/arxiv.2502.20766 · pith_short_12: F7LOUTKTG5QO · pith_short_16: F7LOUTKTG5QO3LSA · pith_short_8: F7LOUTKT

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/F7LOUTKTG5QO3LSAS7SZ7N5BPL \
  | 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: 2fd6ea4d533760edae4097e59fb7a17accd6771823e593938c74e778c3cd2cdf

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "60ebc3296902be26fc15473006ce2f28ed52156f45f7759241bb5611f518be91",
    "cross_cats_sorted": [
      "cs.CL"
    ],
    "license": "http://creativecommons.org/licenses/by/4.0/",
    "primary_cat": "cs.LG",
    "submitted_at": "2025-02-28T06:34:53Z",
    "title_canon_sha256": "39135ab6ef300c205e27be6bc8ab1f78b7dbad2d2ea266b96c7b7b028603ab3d"
  },
  "schema_version": "1.0",
  "source": {
    "id": "2502.20766",
    "kind": "arxiv",
    "version": 1
  }
}