Pith Number

pith:FO52FBCU

pith:2026:FO52FBCUDUET6OFTZ23JRUJA7G

not attested not anchored not stored refs pending

RULER: Representation-Level Verification of Machine Unlearning

Axel Finke, Georgina Cosma

arxiv:2605.27569 v1 · 2026-05-26 · cs.AI

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

Add to your LaTeX paper

\usepackage{pith}
\pithnumber{FO52FBCUDUET6OFTZ23JRUJA7G}

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	2026-05-28T01:04:16.193471Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

2bbba284541d093f38b3ceb698d120f9b789b2069eea28ed706f555a06446d59

Aliases

arxiv: 2605.27569 · arxiv_version: 2605.27569v1 · doi: 10.48550/arxiv.2605.27569 · pith_short_12: FO52FBCUDUET · pith_short_16: FO52FBCUDUET6OFT · pith_short_8: FO52FBCU

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/FO52FBCUDUET6OFTZ23JRUJA7G \
  | 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: 2bbba284541d093f38b3ceb698d120f9b789b2069eea28ed706f555a06446d59

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "6b587c2ed946a5e11617c38bc50fd2599077862976268a7ed79d2a3a88513840",
    "cross_cats_sorted": [],
    "license": "http://creativecommons.org/licenses/by/4.0/",
    "primary_cat": "cs.AI",
    "submitted_at": "2026-05-26T18:41:48Z",
    "title_canon_sha256": "0446f472d26dc9c48c711c607ecbd13bf932ffb01af394884d22a7efc6d8a5fe"
  },
  "schema_version": "1.0",
  "source": {
    "id": "2605.27569",
    "kind": "arxiv",
    "version": 1
  }
}