Pith Number

pith:NL7FAFTW

pith:2019:NL7FAFTWUZX5YPTIFLQWPJDDSA

not attested not anchored not stored refs pending

Design of intentional backdoors in sequential models

Johan Reimann, Naresh Iyer, Nurali Virani, Zhaoyuan Yang

arxiv:1902.09972 v1 · 2019-02-26 · cs.CR · 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{NL7FAFTWUZX5YPTIFLQWPJDDSA}

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	2026-05-17T23:51:04.930614Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

6afe501676a66fdc3e682ae167a46390314691c1d2e3ebc410a36ae7700fb623

Aliases

arxiv: 1902.09972 · arxiv_version: 1902.09972v1 · doi: 10.48550/arxiv.1902.09972 · pith_short_12: NL7FAFTWUZX5 · pith_short_16: NL7FAFTWUZX5YPTI · pith_short_8: NL7FAFTW

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/NL7FAFTWUZX5YPTIFLQWPJDDSA \
  | 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: 6afe501676a66fdc3e682ae167a46390314691c1d2e3ebc410a36ae7700fb623

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "5d6bb53fabf6158f17e253d7e41b4558e5efac4551d87a35f4b8aba2c697fcd2",
    "cross_cats_sorted": [
      "cs.LG"
    ],
    "license": "http://arxiv.org/licenses/nonexclusive-distrib/1.0/",
    "primary_cat": "cs.CR",
    "submitted_at": "2019-02-26T14:43:14Z",
    "title_canon_sha256": "d2cff33c51a0cc510484995c7237f6cca169be5cac80c7ef8c99e92ba5bdeb6d"
  },
  "schema_version": "1.0",
  "source": {
    "id": "1902.09972",
    "kind": "arxiv",
    "version": 1
  }
}