Pith Number

pith:K6FLPZOW

pith:2026:K6FLPZOWBV6U5YPPQRBSW453P2

not attested not anchored not stored refs pending

Amplifying, Not Learning: Fine-Tuned AI Text Detectors Amplify a Pretrained Direction

Alexander Smirnov

arxiv:2605.21653 v1 · 2026-05-20 · 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{K6FLPZOWBV6U5YPPQRBSW453P2}

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	2026-05-22T01:03:26.954070Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

578ab7e5d60d7d4ee1ef84432b73bb7e90d8c0b69dadd058f6c35ca545813dc0

Aliases

arxiv: 2605.21653 · arxiv_version: 2605.21653v1 · doi: 10.48550/arxiv.2605.21653 · pith_short_12: K6FLPZOWBV6U · pith_short_16: K6FLPZOWBV6U5YPP · pith_short_8: K6FLPZOW

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/K6FLPZOWBV6U5YPPQRBSW453P2 \
  | 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: 578ab7e5d60d7d4ee1ef84432b73bb7e90d8c0b69dadd058f6c35ca545813dc0

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "01b9e837e5915e5546561fe6acc7d9a44be7bc0425713d51e4bec9c655c2e315",
    "cross_cats_sorted": [
      "cs.AI",
      "cs.CL"
    ],
    "license": "http://creativecommons.org/licenses/by/4.0/",
    "primary_cat": "cs.LG",
    "submitted_at": "2026-05-20T19:08:38Z",
    "title_canon_sha256": "00cfa665d58ddd9decdf04c23bfe8e5714d7822675171b5b3301b89a8cb5aee9"
  },
  "schema_version": "1.0",
  "source": {
    "id": "2605.21653",
    "kind": "arxiv",
    "version": 1
  }
}