Pith Number

pith:F5NQL5RC

pith:2025:F5NQL5RCOQNSZDISEYFM6OILEF

not attested not anchored not stored refs pending

Verifiable Unlearning on Edge

Alex Davidson, Hamed Haddadi, Mohammad M Maheri

arxiv:2506.20037 v1 · 2025-06-24 · cs.LG · cs.CR

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

Add to your LaTeX paper

\usepackage{pith}
\pithnumber{F5NQL5RCOQNSZDISEYFM6OILEF}

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	2026-07-05T11:26:59.428437Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

2f5b05f622741b2c8d12260acf390b2154479b272eaa7817defcf0e219accd7d

Aliases

arxiv: 2506.20037 · arxiv_version: 2506.20037v1 · doi: 10.48550/arxiv.2506.20037 · pith_short_12: F5NQL5RCOQNS · pith_short_16: F5NQL5RCOQNSZDIS · pith_short_8: F5NQL5RC

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/F5NQL5RCOQNSZDISEYFM6OILEF \
  | 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: 2f5b05f622741b2c8d12260acf390b2154479b272eaa7817defcf0e219accd7d

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "daa57b7e249b0807e33759949fc096decf6a248025231212fee7ea4fa641561b",
    "cross_cats_sorted": [
      "cs.CR"
    ],
    "license": "http://arxiv.org/licenses/nonexclusive-distrib/1.0/",
    "primary_cat": "cs.LG",
    "submitted_at": "2025-06-24T22:24:47Z",
    "title_canon_sha256": "a56d7fea62232accfc87f28f1bbfe1b09ac98d5e858d151a5df786a6d4cecdb4"
  },
  "schema_version": "1.0",
  "source": {
    "id": "2506.20037",
    "kind": "arxiv",
    "version": 1
  }
}