Pith Number

pith:4MIWJO7N

pith:2026:4MIWJO7NY4GY55Y4UC4XLEVSW6

not attested not anchored not stored refs pending

Lethe: How Hard Is It to Forget? A Benchmark for Federated Unlearning in Medical Imaging

Shengchao Chen, Ting Shu

arxiv:2608.01094 v1 · 2026-08-02 · cs.CV

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

Add to your LaTeX paper

\usepackage{pith}
\pithnumber{4MIWJO7NY4GY55Y4UC4XLEVSW6}

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	2026-08-04T01:56:34.324411Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

e31164bbedc70d8ef71ca0b97592b2b7ba6d3b085bb7e499bb4df38222c3e0ac

Aliases

arxiv: 2608.01094 · arxiv_version: 2608.01094v1 · doi: 10.48550/arxiv.2608.01094 · pith_short_12: 4MIWJO7NY4GY · pith_short_16: 4MIWJO7NY4GY55Y4 · pith_short_8: 4MIWJO7N

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/4MIWJO7NY4GY55Y4UC4XLEVSW6 \
  | 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: e31164bbedc70d8ef71ca0b97592b2b7ba6d3b085bb7e499bb4df38222c3e0ac

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "56cf4b1a70e79cb6a10270f62b08947087fd0d427d0e04dbb2cf9136332c45ad",
    "cross_cats_sorted": [],
    "license": "http://arxiv.org/licenses/nonexclusive-distrib/1.0/",
    "primary_cat": "cs.CV",
    "submitted_at": "2026-08-02T08:50:20Z",
    "title_canon_sha256": "247decb924a809cc954fb2f4276d94900302ef75f107a2ed4dc0e1b0cc2a1c04"
  },
  "schema_version": "1.0",
  "source": {
    "id": "2608.01094",
    "kind": "arxiv",
    "version": 1
  }
}