Pith Number

pith:E43LLXA4

pith:2013:E43LLXA4EMZVLFPWFT5JIHLPLU

not attested not anchored not stored refs pending

Image Steganography using Karhunen-Loeve Transform and Least Bit Substitution

Ankit Chadha, Dattatray Bade, Neha Satam, Rakshak Sood

arxiv:1311.1700 v1 · 2013-11-07 · 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{E43LLXA4EMZVLFPWFT5JIHLPLU}

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	2026-05-18T03:07:43.563373Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

2736b5dc1c23335595f62cfa941d6f5d22c5fe251ea1164720a2ab1162785d59

Aliases

arxiv: 1311.1700 · arxiv_version: 1311.1700v1 · doi: 10.48550/arxiv.1311.1700 · pith_short_12: E43LLXA4EMZV · pith_short_16: E43LLXA4EMZVLFPW · pith_short_8: E43LLXA4

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/E43LLXA4EMZVLFPWFT5JIHLPLU \
  | 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: 2736b5dc1c23335595f62cfa941d6f5d22c5fe251ea1164720a2ab1162785d59

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "6e4e1d8983157de94b777937d669f41f152dcfdced39d4b56b645176333ab4ec",
    "cross_cats_sorted": [],
    "license": "http://arxiv.org/licenses/nonexclusive-distrib/1.0/",
    "primary_cat": "cs.MM",
    "submitted_at": "2013-11-07T14:45:30Z",
    "title_canon_sha256": "310edda58b32ac2770b8d0bc62f1a82316d861e18dd7a7141ba2528de2944467"
  },
  "schema_version": "1.0",
  "source": {
    "id": "1311.1700",
    "kind": "arxiv",
    "version": 1
  }
}