Pith Number

pith:5XRUBWTW

pith:2022:5XRUBWTWVCQLFTTSSQPDCVB3EF

not attested not anchored not stored refs pending

IDEAL: Query-Efficient Data-Free Learning from Black-box Models

Chen Chen, Jie Zhang, Lingjuan Lyu

arxiv:2205.11158 v2 · 2022-05-23 · 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{5XRUBWTWVCQLFTTSSQPDCVB3EF}

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	2026-07-05T06:42:01.987824Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

ede340da76a8a0b2ce72941e31543b2179f42c13a54e62e117866c929e8188de

Aliases

arxiv: 2205.11158 · arxiv_version: 2205.11158v2 · doi: 10.48550/arxiv.2205.11158 · pith_short_12: 5XRUBWTWVCQL · pith_short_16: 5XRUBWTWVCQLFTTS · pith_short_8: 5XRUBWTW

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/5XRUBWTWVCQLFTTSSQPDCVB3EF \
  | 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: ede340da76a8a0b2ce72941e31543b2179f42c13a54e62e117866c929e8188de

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "69cdbcb89095816ce65fbbcf75ca36b47f13d099b08fecc19d88f80c38936da8",
    "cross_cats_sorted": [],
    "license": "http://arxiv.org/licenses/nonexclusive-distrib/1.0/",
    "primary_cat": "cs.AI",
    "submitted_at": "2022-05-23T09:48:26Z",
    "title_canon_sha256": "5f77d14422f27c92d873e913332101d9ba25c379dd854de2b587ab62cb945288"
  },
  "schema_version": "1.0",
  "source": {
    "id": "2205.11158",
    "kind": "arxiv",
    "version": 2
  }
}