Pith Number

pith:VPSSSORE

pith:2018:VPSSSORE63YKFNU3ZY2AQOWYIT

not attested not anchored not stored refs pending

A Novel Contourlet Domain Watermark Detector for Copyright Protection

Maryam Amirmazlaghani

arxiv:1801.07023 v1 · 2018-01-22 · eess.IV · eess.SP

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

Add to your LaTeX paper

\usepackage{pith}
\pithnumber{VPSSSORE63YKFNU3ZY2AQOWYIT}

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	2026-05-18T00:25:22.465078Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

abe5293a24f6f0a2b69bce34083ad844c77f5dc551f5c915d26a3693a234a1bf

Aliases

arxiv: 1801.07023 · arxiv_version: 1801.07023v1 · doi: 10.48550/arxiv.1801.07023 · pith_short_12: VPSSSORE63YK · pith_short_16: VPSSSORE63YKFNU3 · pith_short_8: VPSSSORE

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/VPSSSORE63YKFNU3ZY2AQOWYIT \
  | 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: abe5293a24f6f0a2b69bce34083ad844c77f5dc551f5c915d26a3693a234a1bf

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "fe55c57f613e6eb042222ef32ce6873707b34f46dbf8c5a8e845de04cee7028d",
    "cross_cats_sorted": [
      "eess.SP"
    ],
    "license": "http://arxiv.org/licenses/nonexclusive-distrib/1.0/",
    "primary_cat": "eess.IV",
    "submitted_at": "2018-01-22T10:16:55Z",
    "title_canon_sha256": "19b43f2affe954b7572abeb3ea08117265dd8fa387441ebb1a2cdf4b0e153257"
  },
  "schema_version": "1.0",
  "source": {
    "id": "1801.07023",
    "kind": "arxiv",
    "version": 1
  }
}