Pith Number

pith:VTKYZH5D

pith:2018:VTKYZH5DZ7H3272BP6RDYQX5MH

not attested not anchored not stored refs pending

TRLG: Fragile blind quad watermarking for image tamper detection and recovery by providing compact digests with quality optimized using LWT and GA

Amir Hossein Mohajerzadeh, Amir Hossein Taherinia, Behrouz Bolourian Haghighi

arxiv:1803.02623 v1 · 2018-03-07 · cs.CR · cs.CV · 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{VTKYZH5DZ7H3272BP6RDYQX5MH}

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	2026-05-18T00:21:45.433055Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

acd58c9fa3cfcfbd7f417fa23c42fd61d24d4018952928f46d499c440d0df489

Aliases

arxiv: 1803.02623 · arxiv_version: 1803.02623v1 · doi: 10.48550/arxiv.1803.02623 · pith_short_12: VTKYZH5DZ7H3 · pith_short_16: VTKYZH5DZ7H3272B · pith_short_8: VTKYZH5D

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/VTKYZH5DZ7H3272BP6RDYQX5MH \
  | 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: acd58c9fa3cfcfbd7f417fa23c42fd61d24d4018952928f46d499c440d0df489

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "d84003d8440fa5895394fdd5c1310ceddecc6e23856567e42807422e7b8f5745",
    "cross_cats_sorted": [
      "cs.CV",
      "cs.MM"
    ],
    "license": "http://arxiv.org/licenses/nonexclusive-distrib/1.0/",
    "primary_cat": "cs.CR",
    "submitted_at": "2018-03-07T12:47:18Z",
    "title_canon_sha256": "08f3f6e758107abb06289b728645d03ac395f635399e74effa6dcf4368d167c4"
  },
  "schema_version": "1.0",
  "source": {
    "id": "1803.02623",
    "kind": "arxiv",
    "version": 1
  }
}