Pith Number

pith:62SATHD7

pith:2026:62SATHD7EKYOW2PL3N3HZO2H3Q

not attested not anchored not stored refs pending

Understanding Sparse Attention Selectivity in Long-Context Foundation Models via Counterfactual Evaluation

Chugang Yi, Haizhao Yang, Xingyu Ren, Youran Sun

arxiv:2608.01676 v1 · 2026-08-03 · 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{62SATHD7EKYOW2PL3N3HZO2H3Q}

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	2026-08-04T02:06:23.652507Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

f6a4099c7f22b0eb69ebdb767cbb47dc0486a00020e2f05334cd6d10265305a1

Aliases

arxiv: 2608.01676 · arxiv_version: 2608.01676v1 · doi: 10.48550/arxiv.2608.01676 · pith_short_12: 62SATHD7EKYO · pith_short_16: 62SATHD7EKYOW2PL · pith_short_8: 62SATHD7

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/62SATHD7EKYOW2PL3N3HZO2H3Q \
  | 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: f6a4099c7f22b0eb69ebdb767cbb47dc0486a00020e2f05334cd6d10265305a1

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "5cd3f008d80bbed85bc438d3a928202eb7613de403371df584559d4f1d8a83f7",
    "cross_cats_sorted": [
      "cs.LG"
    ],
    "license": "http://creativecommons.org/licenses/by/4.0/",
    "primary_cat": "cs.CL",
    "submitted_at": "2026-08-03T04:12:02Z",
    "title_canon_sha256": "57cead9c032f651401977fd639d8ed50900946fae41ff9d1546e41f5fc074eac"
  },
  "schema_version": "1.0",
  "source": {
    "id": "2608.01676",
    "kind": "arxiv",
    "version": 1
  }
}