Pith Number

pith:UQ525LCX

pith:2026:UQ525LCX7QGGCIZDQ64QISOLW4

not attested not anchored not stored refs pending

Linear Probes Detect Task Format, Not Reasoning Mode in Language Model Hidden States

Aman Chadha, Divya Chaudhary, Subramanyam Sahoo, Vinija Jain

arxiv:2606.02907 v1 · 2026-06-01 · cs.CL · cs.AI

Open paper page JSON Open Graph Bundle Merged state Verified badge What is a Pith Number?

Add to your LaTeX paper

\usepackage{pith}
\pithnumber{UQ525LCX7QGGCIZDQ64QISOLW4}

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	2026-06-03T01:05:26.236541Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

a43baeac57fc0c61232387b90449cbb70e6612338536bdedd98106295699f2f9

Aliases

arxiv: 2606.02907 · arxiv_version: 2606.02907v1 · doi: 10.48550/arxiv.2606.02907 · pith_short_12: UQ525LCX7QGG · pith_short_16: UQ525LCX7QGGCIZD · pith_short_8: UQ525LCX

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/UQ525LCX7QGGCIZDQ64QISOLW4 \
  | 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: a43baeac57fc0c61232387b90449cbb70e6612338536bdedd98106295699f2f9

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "ce6059e379b691510a28cd871857641b6606d69f7cd3da387c4a10b034e50731",
    "cross_cats_sorted": [
      "cs.AI"
    ],
    "license": "http://creativecommons.org/licenses/by/4.0/",
    "primary_cat": "cs.CL",
    "submitted_at": "2026-06-01T21:22:15Z",
    "title_canon_sha256": "07b56a3ac8e1ffa1ce425410651d836e6e8bf6d56dbca99ab263d490fa1231c3"
  },
  "schema_version": "1.0",
  "source": {
    "id": "2606.02907",
    "kind": "arxiv",
    "version": 1
  }
}