Pith Number

pith:EPMIZADT

pith:2024:EPMIZADTIH6WJAHQDPZQQLNMGP

not attested not anchored not stored refs pending

Toward Efficient Data-Free Unlearning

Chenhao Zhang, Miao Xu, Shaofei Shen, Weitong Chen

arxiv:2412.13790 v1 · 2024-12-18 · 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{EPMIZADTIH6WJAHQDPZQQLNMGP}

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	2026-07-05T09:51:08.681045Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

23d88c807341fd6480f01bf3082dac33c569b574ee8bbd6edb9871cc705461c5

Aliases

arxiv: 2412.13790 · arxiv_version: 2412.13790v1 · doi: 10.48550/arxiv.2412.13790 · pith_short_12: EPMIZADTIH6W · pith_short_16: EPMIZADTIH6WJAHQ · pith_short_8: EPMIZADT

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/EPMIZADTIH6WJAHQDPZQQLNMGP \
  | 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: 23d88c807341fd6480f01bf3082dac33c569b574ee8bbd6edb9871cc705461c5

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "9d1546b99dca84739a1be5d8a6e806cc015efb69035c026bd94542f11c44de25",
    "cross_cats_sorted": [],
    "license": "http://arxiv.org/licenses/nonexclusive-distrib/1.0/",
    "primary_cat": "cs.LG",
    "submitted_at": "2024-12-18T12:32:43Z",
    "title_canon_sha256": "a10f1b008e7e3cfd75c1e29d0dfd44e73d638136c07ed0b9011dd0880f001fa3"
  },
  "schema_version": "1.0",
  "source": {
    "id": "2412.13790",
    "kind": "arxiv",
    "version": 1
  }
}