Pith Number

pith:AQ5KQRLI

pith:2026:AQ5KQRLILXRHHGABL2GPN3NHE3

not attested not anchored not stored refs pending

Obliviate: Efficient Unlearning in Recommender Systems

Brijraj Singh, Narayan Chaturvedi, Niranjan Pedanekar, Tushar Prakash

arxiv:2607.22665 v1 · 2026-06-30 · 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{AQ5KQRLILXRHHGABL2GPN3NHE3}

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	2026-07-28T00:21:48.066826Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

043aa845685de27398015e8cf6eda726da04eea992bb732b721b8c88a07626ed

Aliases

arxiv: 2607.22665 · arxiv_version: 2607.22665v1 · doi: 10.48550/arxiv.2607.22665 · pith_short_12: AQ5KQRLILXRH · pith_short_16: AQ5KQRLILXRHHGAB · pith_short_8: AQ5KQRLI

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/AQ5KQRLILXRHHGABL2GPN3NHE3 \
  | 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: 043aa845685de27398015e8cf6eda726da04eea992bb732b721b8c88a07626ed

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "577fdb3f5813edeaffe8b03cfd2898f1f30307f5078cd98721db7de898868df2",
    "cross_cats_sorted": [],
    "license": "http://creativecommons.org/licenses/by/4.0/",
    "primary_cat": "cs.AI",
    "submitted_at": "2026-06-30T05:52:32Z",
    "title_canon_sha256": "2af289e9160f434a324d9a85bc223fa78f396c506db7f12beab13ecd5d1d4e34"
  },
  "schema_version": "1.0",
  "source": {
    "id": "2607.22665",
    "kind": "arxiv",
    "version": 1
  }
}