Pith Number

pith:FVSXR7CB

pith:2026:FVSXR7CBMQ2GRY3X7X3UWB7PGV

not attested not anchored not stored refs pending

Lethe: Adapter-Augmented Dual-Stream Update for Persistent Knowledge Erasure in Federated Unlearning

Hanwei Tan, Ligang He, Wentai Wu, Yijun Quan

arxiv:2601.22601 v2 · 2026-01-30 · cs.LG

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

Add to your LaTeX paper

\usepackage{pith}
\pithnumber{FVSXR7CBMQ2GRY3X7X3UWB7PGV}

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	2026-06-03T01:05:48.205158Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

2d6578fc41643468e377fdf74b07ef355e268d9b8514acd493a7899c5c093afb

Aliases

arxiv: 2601.22601 · arxiv_version: 2601.22601v2 · doi: 10.48550/arxiv.2601.22601 · pith_short_12: FVSXR7CBMQ2G · pith_short_16: FVSXR7CBMQ2GRY3X · pith_short_8: FVSXR7CB

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/FVSXR7CBMQ2GRY3X7X3UWB7PGV \
  | 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: 2d6578fc41643468e377fdf74b07ef355e268d9b8514acd493a7899c5c093afb

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "f29c053df069f29934a31c9053b5ec83fd8de0585b6ed54820a1aa89990ac41a",
    "cross_cats_sorted": [],
    "license": "http://creativecommons.org/licenses/by-nc-sa/4.0/",
    "primary_cat": "cs.LG",
    "submitted_at": "2026-01-30T05:50:35Z",
    "title_canon_sha256": "b08049b6e111e29d475baf3e4bb7bb72ce2881bcf0cc6bfb8f7eebd0db4f45e7"
  },
  "schema_version": "1.0",
  "source": {
    "id": "2601.22601",
    "kind": "arxiv",
    "version": 2
  }
}