Pith Number

pith:D4DRVIID

pith:2013:D4DRVIID37NDBASFVJG2NFUXY3

not attested not anchored not stored refs pending

Document watermarking based on digital holographic principle

Chol-Su Kim, Kwang-Hyok Jong, Song-Jin Im

arxiv:1306.5066 v1 · 2013-06-21 · physics.optics · 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{D4DRVIID37NDBASFVJG2NFUXY3}

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	2026-05-18T03:20:19.840051Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

1f071aa103dfda308245aa4da69697c6c435e4faa7901d14c99948ed632560bd

Aliases

arxiv: 1306.5066 · arxiv_version: 1306.5066v1 · doi: 10.48550/arxiv.1306.5066 · pith_short_12: D4DRVIID37ND · pith_short_16: D4DRVIID37NDBASF · pith_short_8: D4DRVIID

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/D4DRVIID37NDBASFVJG2NFUXY3 \
  | 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: 1f071aa103dfda308245aa4da69697c6c435e4faa7901d14c99948ed632560bd

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "698f44f6aace33882a24ed51af7c10135790a62997af26c7a87d0390d7e6e011",
    "cross_cats_sorted": [
      "cs.MM"
    ],
    "license": "http://arxiv.org/licenses/nonexclusive-distrib/1.0/",
    "primary_cat": "physics.optics",
    "submitted_at": "2013-06-21T07:43:30Z",
    "title_canon_sha256": "06b69de5a294762e08dbed8586550dd59ca7d33c03ee958535431656c0f03b5b"
  },
  "schema_version": "1.0",
  "source": {
    "id": "1306.5066",
    "kind": "arxiv",
    "version": 1
  }
}