Pith Number

pith:T2TJNQUK

pith:2012:T2TJNQUKILMX4BTFBRS6KYYKCP

not attested not anchored not stored refs pending

An Adaptive Watermarking Technique for the copyright of digital images and Digital Image Protection

Asif Perwej, Firoj Parwej, Yusuf Perwej

arxiv:1205.2800 v1 · 2012-05-12 · 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{T2TJNQUKILMX4BTFBRS6KYYKCP}

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	2026-05-18T03:55:45.967764Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

9ea696c28a42d97e06650c65e5630a13f3eaa469faf6a0996f155266e74f896a

Aliases

arxiv: 1205.2800 · arxiv_version: 1205.2800v1 · doi: 10.48550/arxiv.1205.2800 · pith_short_12: T2TJNQUKILMX · pith_short_16: T2TJNQUKILMX4BTF · pith_short_8: T2TJNQUK

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/T2TJNQUKILMX4BTFBRS6KYYKCP \
  | 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: 9ea696c28a42d97e06650c65e5630a13f3eaa469faf6a0996f155266e74f896a

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "80319bfbbccf67a6b9a5ec1fe3de9599ce1a3009ca651949962a75402828fd61",
    "cross_cats_sorted": [],
    "license": "http://arxiv.org/licenses/nonexclusive-distrib/1.0/",
    "primary_cat": "cs.MM",
    "submitted_at": "2012-05-12T17:53:36Z",
    "title_canon_sha256": "5efb5517a486cda0a81bac6fd523822973c5d8cf3c4714ea19245d6ad7f243f9"
  },
  "schema_version": "1.0",
  "source": {
    "id": "1205.2800",
    "kind": "arxiv",
    "version": 1
  }
}