Pith Number

pith:C6RBPSOP

pith:2026:C6RBPSOPRL7MOKH5W2RT7IF6ZS

not attested not anchored not stored refs pending

Reasoning Fine-Tuning Induces Persistent Latent Policy States

Abir Harrasse, Chaithanya Bandi, Fateme Hashemi Chaleshtori, Hunar Batra, Michael Lan

arxiv:2607.18532 v1 · 2026-07-20 · 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{C6RBPSOPRL7MOKH5W2RT7IF6ZS}

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	2026-07-22T00:22:53.065655Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

17a217c9cf8afec728fdb6a33fa0becc844bdec93338f8328bf5548ab93d29c7

Aliases

arxiv: 2607.18532 · arxiv_version: 2607.18532v1 · doi: 10.48550/arxiv.2607.18532 · pith_short_12: C6RBPSOPRL7M · pith_short_16: C6RBPSOPRL7MOKH5 · pith_short_8: C6RBPSOP

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/C6RBPSOPRL7MOKH5W2RT7IF6ZS \
  | 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: 17a217c9cf8afec728fdb6a33fa0becc844bdec93338f8328bf5548ab93d29c7

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "4008e45b96e852cfad475628cc60dbbdea91606f3ffeb7c371fd2c97584d0fa7",
    "cross_cats_sorted": [],
    "license": "http://creativecommons.org/licenses/by/4.0/",
    "primary_cat": "cs.CL",
    "submitted_at": "2026-07-20T21:56:22Z",
    "title_canon_sha256": "b4467e66542cd8fe72c645bd32ec334487592f7a3023751a774423028f1e9be1"
  },
  "schema_version": "1.0",
  "source": {
    "id": "2607.18532",
    "kind": "arxiv",
    "version": 1
  }
}