Pith Number

pith:NXG4RRMX

pith:2021:NXG4RRMXPZWHM7CLEJJMFVLZ4B

not attested not anchored not stored refs pending

Copy, Right? A Testing Framework for Copyright Protection of Deep Learning Models

Bo Li, Dawn Song, Jialuo Chen, Jingyi Wang, Peng Cheng, Shouling Ji, Tinglan Peng, Xingjun Ma, Youcheng Sun

arxiv:2112.05588 v1 · 2021-12-10 · 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{NXG4RRMXPZWHM7CLEJJMFVLZ4B}

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	2026-07-05T03:39:50.026272Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

6dcdc8c5977e6c767c4b2252c2d579e06d1dac065a8ce19d7d3871d1cdeb7966

Aliases

arxiv: 2112.05588 · arxiv_version: 2112.05588v1 · doi: 10.48550/arxiv.2112.05588 · pith_short_12: NXG4RRMXPZWH · pith_short_16: NXG4RRMXPZWHM7CL · pith_short_8: NXG4RRMX

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/NXG4RRMXPZWHM7CLEJJMFVLZ4B \
  | 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: 6dcdc8c5977e6c767c4b2252c2d579e06d1dac065a8ce19d7d3871d1cdeb7966

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "b39a857b22fa772ce3fb8821614d311c47b8f06ae324a143d98dce3a5772e203",
    "cross_cats_sorted": [],
    "license": "http://arxiv.org/licenses/nonexclusive-distrib/1.0/",
    "primary_cat": "cs.CR",
    "submitted_at": "2021-12-10T15:04:10Z",
    "title_canon_sha256": "5b5107bea41c644158752bd03ac9bf1ba03a2010e920b807b7509ae44ceceafd"
  },
  "schema_version": "1.0",
  "source": {
    "id": "2112.05588",
    "kind": "arxiv",
    "version": 1
  }
}