Pith Number

pith:3M3TXHS4

pith:2012:3M3TXHS4VIM7PCWSYFHYHNHBFW

not attested not anchored not stored refs pending

Robust Image Watermarking Under Pixel Wise Masking Framework

S. K. Sarkar, S. Saha, T. S. Das, V. H. Mankar

arxiv:1207.2699 v1 · 2012-07-11 · 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{3M3TXHS4VIM7PCWSYFHYHNHBFW}

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	2026-05-18T03:51:14.778028Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

db373b9e5caa19f78ad2c14f83b4e12db2441843043b4fba36642174639def2d

Aliases

arxiv: 1207.2699 · arxiv_version: 1207.2699v1 · doi: 10.48550/arxiv.1207.2699 · pith_short_12: 3M3TXHS4VIM7 · pith_short_16: 3M3TXHS4VIM7PCWS · pith_short_8: 3M3TXHS4

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/3M3TXHS4VIM7PCWSYFHYHNHBFW \
  | 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: db373b9e5caa19f78ad2c14f83b4e12db2441843043b4fba36642174639def2d

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "45e6246ef643fbe0a2fba7a564e40b2143606417cab77efdb58fb5438189e89e",
    "cross_cats_sorted": [],
    "license": "http://arxiv.org/licenses/nonexclusive-distrib/1.0/",
    "primary_cat": "cs.CR",
    "submitted_at": "2012-07-11T16:23:40Z",
    "title_canon_sha256": "9f7e5f892a35c4c08da34482dc2a9f49add9b24576022f363f512c197b4b1213"
  },
  "schema_version": "1.0",
  "source": {
    "id": "1207.2699",
    "kind": "arxiv",
    "version": 1
  }
}