Pith Number

pith:ZXPMSMOI

pith:2026:ZXPMSMOIGCP5NLFGWQQB53FJTU

not attested not anchored not stored refs pending

Reasoning-Trace Collapse: Evaluating the Loss of Explicit Reasoning During Fine-Tuning

Helen Yannakoudakis, Jie M. Zhang, Lukas Twist

arxiv:2605.21127 v1 · 2026-05-20 · 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{ZXPMSMOIGCP5NLFGWQQB53FJTU}

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	2026-05-21T01:05:38.850790Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

cddec931c8309fd6aca6b4201eeca99d28fecdc4b7e3d30cc7b1bad8453202eb

Aliases

arxiv: 2605.21127 · arxiv_version: 2605.21127v1 · doi: 10.48550/arxiv.2605.21127 · pith_short_12: ZXPMSMOIGCP5 · pith_short_16: ZXPMSMOIGCP5NLFG · pith_short_8: ZXPMSMOI

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/ZXPMSMOIGCP5NLFGWQQB53FJTU \
  | 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: cddec931c8309fd6aca6b4201eeca99d28fecdc4b7e3d30cc7b1bad8453202eb

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "a773d3922875b7c538c17516eef4df447341c21ffe3bb57f099bb552e6450abd",
    "cross_cats_sorted": [],
    "license": "http://creativecommons.org/licenses/by/4.0/",
    "primary_cat": "cs.LG",
    "submitted_at": "2026-05-20T12:58:01Z",
    "title_canon_sha256": "6b8b507880695659dc70b987bbb10e272b97b2957da5355f609031a4cc07db30"
  },
  "schema_version": "1.0",
  "source": {
    "id": "2605.21127",
    "kind": "arxiv",
    "version": 1
  }
}