Pith Number

pith:A6C5REWA

pith:2014:A6C5REWADGL4HRMZG6F4JWHW45

not attested not anchored not stored refs pending

Digital Watermarking Techniques in Spatial and Frequency Domain

Sugata Sanyal, Tanmoy Sarkar

arxiv:1406.2146 v2 · 2014-06-09 · cs.CR

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

Add to your LaTeX paper

\usepackage{pith}
\pithnumber{A6C5REWADGL4HRMZG6F4JWHW45}

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	2026-05-18T02:40:18.085395Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

0785d892c01997c3c599378bc4d8f6e74dd9db8805a1864bde6d4ea86478fb69

Aliases

arxiv: 1406.2146 · arxiv_version: 1406.2146v2 · doi: 10.48550/arxiv.1406.2146 · pith_short_12: A6C5REWADGL4 · pith_short_16: A6C5REWADGL4HRMZ · pith_short_8: A6C5REWA

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/A6C5REWADGL4HRMZG6F4JWHW45 \
  | 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: 0785d892c01997c3c599378bc4d8f6e74dd9db8805a1864bde6d4ea86478fb69

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "0ea3747e4708569570eabfc3635c5cdbf175777a2bd15fa18c4b1d7f020699bd",
    "cross_cats_sorted": [],
    "license": "http://arxiv.org/licenses/nonexclusive-distrib/1.0/",
    "primary_cat": "cs.CR",
    "submitted_at": "2014-06-09T12:02:39Z",
    "title_canon_sha256": "eea7b90d738b7a1209e84c69b0fb62be9b3dd19961870276e134304569994708"
  },
  "schema_version": "1.0",
  "source": {
    "id": "1406.2146",
    "kind": "arxiv",
    "version": 2
  }
}