Pith Number

pith:VXD3V7BR

pith:2012:VXD3V7BRF56RUICJOOJ2SCQQBK

not attested not anchored not stored refs pending

Lyapunov exponent evaluation of a digital watermarking scheme proven to be secure

Christophe Guyeux, Jacques M. Bahi, Nicolas Friot

arxiv:1203.0692 v1 · 2012-03-03 · cs.CR · cs.MM · math.DS · math.GN

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

Add to your LaTeX paper

\usepackage{pith}
\pithnumber{VXD3V7BRF56RUICJOOJ2SCQQBK}

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	2026-05-18T04:00:50.863466Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

adc7bafc312f7d1a20497393a90a100a826cc14a6cc50d00114e4329b157ce49

Aliases

arxiv: 1203.0692 · arxiv_version: 1203.0692v1 · doi: 10.48550/arxiv.1203.0692 · pith_short_12: VXD3V7BRF56R · pith_short_16: VXD3V7BRF56RUICJ · pith_short_8: VXD3V7BR

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/VXD3V7BRF56RUICJOOJ2SCQQBK \
  | 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: adc7bafc312f7d1a20497393a90a100a826cc14a6cc50d00114e4329b157ce49

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "5743994ec6ab4a783e2ffbc3683b41a2c57440b04a645422bd3f940b51339d21",
    "cross_cats_sorted": [
      "cs.MM",
      "math.DS",
      "math.GN"
    ],
    "license": "http://arxiv.org/licenses/nonexclusive-distrib/1.0/",
    "primary_cat": "cs.CR",
    "submitted_at": "2012-03-03T22:48:22Z",
    "title_canon_sha256": "f2ac78d78232ced92ffbae097d9695ecf0e4cc84fde7465f3ce343a504529bd3"
  },
  "schema_version": "1.0",
  "source": {
    "id": "1203.0692",
    "kind": "arxiv",
    "version": 1
  }
}