Pith Number

pith:SNJO4NVR

pith:2018:SNJO4NVRJF7H2GPLLI5CJJ5NQT

not attested not anchored not stored refs pending

A blind robust watermarking method based on Arnold Cat map and amplified pseudo-noise strings with weak correlation

Amir Hossein Mohajerzadeh, Amir Hossein Taherinia, Seyyed Hossein Soleymani

arxiv:1804.11240 v1 · 2018-03-30 · cs.MM

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

Add to your LaTeX paper

\usepackage{pith}
\pithnumber{SNJO4NVRJF7H2GPLLI5CJJ5NQT}

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	2026-05-18T00:17:14.192921Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

9352ee36b1497e7d19eb5a3a24a7ad84f3e95e4e4774741f596f629ffd26e945

Aliases

arxiv: 1804.11240 · arxiv_version: 1804.11240v1 · doi: 10.48550/arxiv.1804.11240 · pith_short_12: SNJO4NVRJF7H · pith_short_16: SNJO4NVRJF7H2GPL · pith_short_8: SNJO4NVR

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/SNJO4NVRJF7H2GPLLI5CJJ5NQT \
  | 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: 9352ee36b1497e7d19eb5a3a24a7ad84f3e95e4e4774741f596f629ffd26e945

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "e5eea2920f5853ba63d37bc01bd90fa8fe646b32351194967ab3abeae0e5ac03",
    "cross_cats_sorted": [],
    "license": "http://arxiv.org/licenses/nonexclusive-distrib/1.0/",
    "primary_cat": "cs.MM",
    "submitted_at": "2018-03-30T13:13:04Z",
    "title_canon_sha256": "28eb1cb95c0bb524beab7a14a96c4b4f7d309be64118adcf6ab469aa67833f6e"
  },
  "schema_version": "1.0",
  "source": {
    "id": "1804.11240",
    "kind": "arxiv",
    "version": 1
  }
}