Pith Number

pith:OAHJB67K

pith:2017:OAHJB67K66PY6UKMTZV6KJ3A37

not attested not anchored not stored refs pending

Optimum Decoder for Multiplicative Spread Spectrum Image Watermarking with Laplacian Modeling

Mohammad Reza Aref, Nematollah Zarmehi

arxiv:1705.00726 v1 · 2017-05-01 · 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{OAHJB67K66PY6UKMTZV6KJ3A37}

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	2026-05-18T00:45:10.014506Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

700e90fbeaf79f8f514c9e6be52760dfd9736f703a9bda08e703788846150cdc

Aliases

arxiv: 1705.00726 · arxiv_version: 1705.00726v1 · doi: 10.48550/arxiv.1705.00726 · pith_short_12: OAHJB67K66PY · pith_short_16: OAHJB67K66PY6UKM · pith_short_8: OAHJB67K

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/OAHJB67K66PY6UKMTZV6KJ3A37 \
  | 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: 700e90fbeaf79f8f514c9e6be52760dfd9736f703a9bda08e703788846150cdc

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "cdc034c54fdd327aafb31e727a8114332ce30a722337f7fccd8e8244a82ea0b8",
    "cross_cats_sorted": [],
    "license": "http://arxiv.org/licenses/nonexclusive-distrib/1.0/",
    "primary_cat": "cs.MM",
    "submitted_at": "2017-05-01T22:08:10Z",
    "title_canon_sha256": "d4570cf3429bc38ec11d3bb483706b65718b61edc69c5a789c41b31935b66684"
  },
  "schema_version": "1.0",
  "source": {
    "id": "1705.00726",
    "kind": "arxiv",
    "version": 1
  }
}