Pith Number

pith:W7O4RW2Z

pith:2026:W7O4RW2ZGHNIFOXSDFMTJA26OY

not attested not anchored not stored refs pending

Positional Failures in Long-Context LLMs: A Blind Spot in Reasoning Benchmarks

Chuyifei Zhang, Hongyu Cui, Jitao Sang, Xiaowen Huang

arxiv:2605.23170 v1 · 2026-05-22 · cs.CL · cs.AI · 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{W7O4RW2ZGHNIFOXSDFMTJA26OY}

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	2026-05-25T02:01:41.373904Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

b7ddc8db5931da82baf2195934835e761a2b5991326aa6f0a8fd95919965450e

Aliases

arxiv: 2605.23170 · arxiv_version: 2605.23170v1 · doi: 10.48550/arxiv.2605.23170 · pith_short_12: W7O4RW2ZGHNI · pith_short_16: W7O4RW2ZGHNIFOXS · pith_short_8: W7O4RW2Z

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/W7O4RW2ZGHNIFOXSDFMTJA26OY \
  | 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: b7ddc8db5931da82baf2195934835e761a2b5991326aa6f0a8fd95919965450e

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "8eff69306e543ac7678b4c70b83726744cfefcaeefb99c4cee8e8368635da963",
    "cross_cats_sorted": [
      "cs.AI",
      "cs.LG"
    ],
    "license": "http://creativecommons.org/licenses/by/4.0/",
    "primary_cat": "cs.CL",
    "submitted_at": "2026-05-22T02:42:41Z",
    "title_canon_sha256": "323fce018310459f2dd15bbbdf9aba3caa3e8b24747500be6b69d483c637018c"
  },
  "schema_version": "1.0",
  "source": {
    "id": "2605.23170",
    "kind": "arxiv",
    "version": 1
  }
}