Pith Number

pith:LUIIZFAF

pith:2021:LUIIZFAF7GFCYDOSYGYMQ3YHOI

not attested not anchored not stored refs pending

Nonlinear Projection Based Gradient Estimation for Query Efficient Blackbox Attacks

Bo Li, Huichen Li, Linyi Li, Shuang Yang, Xiaojun Xu, Xiaolu Zhang

arxiv:2102.13184 v3 · 2021-02-25 · cs.LG · cs.CV

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

Add to your LaTeX paper

\usepackage{pith}
\pithnumber{LUIIZFAF7GFCYDOSYGYMQ3YHOI}

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	2026-07-05T02:36:10.148656Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

5d108c9405f98a2c0dd2c1b0c86f07722837bf990286ec2ce0df362fc772e82c

Aliases

arxiv: 2102.13184 · arxiv_version: 2102.13184v3 · doi: 10.48550/arxiv.2102.13184 · pith_short_12: LUIIZFAF7GFC · pith_short_16: LUIIZFAF7GFCYDOS · pith_short_8: LUIIZFAF

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/LUIIZFAF7GFCYDOSYGYMQ3YHOI \
  | 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: 5d108c9405f98a2c0dd2c1b0c86f07722837bf990286ec2ce0df362fc772e82c

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "ceaccf64278400eb6d2f9b88dfece844f99e7b3b48604088405e803b4bc0118c",
    "cross_cats_sorted": [
      "cs.CV"
    ],
    "license": "http://creativecommons.org/licenses/by-nc-nd/4.0/",
    "primary_cat": "cs.LG",
    "submitted_at": "2021-02-25T21:32:19Z",
    "title_canon_sha256": "a0d14fb2e03565fec9a0fe1344c21d0162c441a57ea31882d646783a1a0f8fc8"
  },
  "schema_version": "1.0",
  "source": {
    "id": "2102.13184",
    "kind": "arxiv",
    "version": 3
  }
}