Pith Number

pith:4NH5PC57

pith:2026:4NH5PC57A6C5H7ELRLL7KQYW6U

not attested not anchored not stored refs pending

Routing Subspaces: Auditing Evaluation-to-Deployment Mismatch in Fine-Tuned Language Models

Phongsakon Mark Konrad, Serkan Ayvaz, Toygar Tanyel

arxiv:2607.20436 v1 · 2026-05-11 · cs.CL · cs.AI · cs.SE

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

Add to your LaTeX paper

\usepackage{pith}
\pithnumber{4NH5PC57A6C5H7ELRLL7KQYW6U}

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	2026-07-24T00:23:15.358594Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

e34fd78bbf0785d3fc8b8ad7f54316f52953c3c382ae8b8af5e60a54201fc898

Aliases

arxiv: 2607.20436 · arxiv_version: 2607.20436v1 · doi: 10.48550/arxiv.2607.20436 · pith_short_12: 4NH5PC57A6C5 · pith_short_16: 4NH5PC57A6C5H7EL · pith_short_8: 4NH5PC57

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/4NH5PC57A6C5H7ELRLL7KQYW6U \
  | 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: e34fd78bbf0785d3fc8b8ad7f54316f52953c3c382ae8b8af5e60a54201fc898

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "5f9ea0e3e85b1750e2eb76bc1ccd5a1fa5c1a5b35b365b2c32a494e57baaaed9",
    "cross_cats_sorted": [
      "cs.AI",
      "cs.SE"
    ],
    "license": "http://creativecommons.org/licenses/by-nc-nd/4.0/",
    "primary_cat": "cs.CL",
    "submitted_at": "2026-05-11T13:44:35Z",
    "title_canon_sha256": "d485e9ef12beefc93e36f6535d643aff840bdf32668554ddb4173c9182e7df30"
  },
  "schema_version": "1.0",
  "source": {
    "id": "2607.20436",
    "kind": "arxiv",
    "version": 1
  }
}