Pith Number

pith:QM7K25CM

pith:2018:QM7K25CM2ZH7XT25ZPHQIGKF32

not attested not anchored not stored refs pending

Review on Optical Image Hiding and Watermarking Techniques

Changyuan Zhou, Shuming Jiao, Wenbin Zou, Xia Li, Yishi Shi

arxiv:1804.05483 v1 · 2018-04-16 · 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{QM7K25CM2ZH7XT25ZPHQIGKF32}

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	2026-05-18T00:04:58.930003Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

833ead744cd64ffbcf5dcbcf041945deb68f6e4e84fed13ea42eed48de04f252

Aliases

arxiv: 1804.05483 · arxiv_version: 1804.05483v1 · doi: 10.48550/arxiv.1804.05483 · pith_short_12: QM7K25CM2ZH7 · pith_short_16: QM7K25CM2ZH7XT25 · pith_short_8: QM7K25CM

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/QM7K25CM2ZH7XT25ZPHQIGKF32 \
  | 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: 833ead744cd64ffbcf5dcbcf041945deb68f6e4e84fed13ea42eed48de04f252

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "71da9d8368a0ce26853bcb4ef1dbe79829d1bf525a5c8252cb6d83478e43a9f8",
    "cross_cats_sorted": [],
    "license": "http://arxiv.org/licenses/nonexclusive-distrib/1.0/",
    "primary_cat": "cs.CV",
    "submitted_at": "2018-04-16T02:43:38Z",
    "title_canon_sha256": "9fedae3e271685f10e46deae5fd752533b5ee69630f92bd4ee49ff3f96b6c591"
  },
  "schema_version": "1.0",
  "source": {
    "id": "1804.05483",
    "kind": "arxiv",
    "version": 1
  }
}