Pith Number

pith:X6RSJVKX

pith:2026:X6RSJVKXP6ZVX43KI4YKOWRHT2

not attested not anchored not stored refs pending

SFT Overtraining Predicts Rank Inversion via Entropy Collapse Under RLVR

Kelly Liu, Siddharth Aphale

arxiv:2606.18487 v1 · 2026-06-16 · cs.LG · cs.AI · cs.CL

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

Add to your LaTeX paper

\usepackage{pith}
\pithnumber{X6RSJVKXP6ZVX43KI4YKOWRHT2}

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	2026-06-19T16:11:02.294224Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

bfa324d5577fb35bf36a4730a75a279ea1b6e1ad508569d509cafa35c3ecac7a

Aliases

arxiv: 2606.18487 · arxiv_version: 2606.18487v1 · doi: 10.48550/arxiv.2606.18487 · pith_short_12: X6RSJVKXP6ZV · pith_short_16: X6RSJVKXP6ZVX43K · pith_short_8: X6RSJVKX

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/X6RSJVKXP6ZVX43KI4YKOWRHT2 \
  | 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: bfa324d5577fb35bf36a4730a75a279ea1b6e1ad508569d509cafa35c3ecac7a

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "6024f6751e2736691aa00c7a38435853513dfbe55bb2ba18323aeda818dead53",
    "cross_cats_sorted": [
      "cs.AI",
      "cs.CL"
    ],
    "license": "http://creativecommons.org/licenses/by/4.0/",
    "primary_cat": "cs.LG",
    "submitted_at": "2026-06-16T20:59:55Z",
    "title_canon_sha256": "b420e20faad16ced76e087c9cc1e5442acbada7ac42360b4c54ec53c021c19e1"
  },
  "schema_version": "1.0",
  "source": {
    "id": "2606.18487",
    "kind": "arxiv",
    "version": 1
  }
}