Pith Number

pith:SDWDX7W7

pith:2025:SDWDX7W7KWZS5MLRCCU2JNUBBC

not attested not anchored not stored refs pending

Memory-Efficient Distributed Unlearning

Alon Helvitz, Natalie Lang, Nir Shlezinger

arxiv:2505.03388 v1 · 2025-05-06 · eess.SP

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

Add to your LaTeX paper

\usepackage{pith}
\pithnumber{SDWDX7W7KWZS5MLRCCU2JNUBBC}

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	2026-07-05T10:59:15.208817Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

90ec3bfedf55b32eb17110a9a4b6810892d389a99fb6b6d946051c9e58f3465c

Aliases

arxiv: 2505.03388 · arxiv_version: 2505.03388v1 · doi: 10.48550/arxiv.2505.03388 · pith_short_12: SDWDX7W7KWZS · pith_short_16: SDWDX7W7KWZS5MLR · pith_short_8: SDWDX7W7

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/SDWDX7W7KWZS5MLRCCU2JNUBBC \
  | 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: 90ec3bfedf55b32eb17110a9a4b6810892d389a99fb6b6d946051c9e58f3465c

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "168e503956b7e31b85ca77995931b1c8b11f371f63ef15098b79cb621136556a",
    "cross_cats_sorted": [],
    "license": "http://arxiv.org/licenses/nonexclusive-distrib/1.0/",
    "primary_cat": "eess.SP",
    "submitted_at": "2025-05-06T10:10:18Z",
    "title_canon_sha256": "5d325b2fc215e1b586115bfe6cdff263f1bd32030b61e80a103b2770aaeea149"
  },
  "schema_version": "1.0",
  "source": {
    "id": "2505.03388",
    "kind": "arxiv",
    "version": 1
  }
}