Pith Number

pith:2MNMX7XJ

pith:2018:2MNMX7XJ4SLYWXEOFIR267FLJO

not attested not anchored not stored refs pending

Fooling OCR Systems with Adversarial Text Images

Congzheng Song, Vitaly Shmatikov

arxiv:1802.05385 v1 · 2018-02-15 · cs.LG · cs.AI · cs.CR · 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{2MNMX7XJ4SLYWXEOFIR267FLJO}

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	2026-05-18T00:23:15.815234Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

d31acbfee9e4978b5c8e2a23af7cab4bb3d924c735f5c7789928c62d0318bc80

Aliases

arxiv: 1802.05385 · arxiv_version: 1802.05385v1 · doi: 10.48550/arxiv.1802.05385 · pith_short_12: 2MNMX7XJ4SLY · pith_short_16: 2MNMX7XJ4SLYWXEO · pith_short_8: 2MNMX7XJ

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/2MNMX7XJ4SLYWXEOFIR267FLJO \
  | 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: d31acbfee9e4978b5c8e2a23af7cab4bb3d924c735f5c7789928c62d0318bc80

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "51b120367f4154dd4f9f815b032d851a9f387d1b2317217d284caccc5fc27372",
    "cross_cats_sorted": [
      "cs.AI",
      "cs.CR",
      "cs.CV"
    ],
    "license": "http://arxiv.org/licenses/nonexclusive-distrib/1.0/",
    "primary_cat": "cs.LG",
    "submitted_at": "2018-02-15T02:08:19Z",
    "title_canon_sha256": "81679b70313272817edd5ea5e15fa3a0de8d0fa76d46d9568b16186b125b35e8"
  },
  "schema_version": "1.0",
  "source": {
    "id": "1802.05385",
    "kind": "arxiv",
    "version": 1
  }
}