Pith Number

pith:4PXTF7FU

pith:2015:4PXTF7FUQYLFLIIWHTXL2LRE5I

not attested not anchored not stored refs pending

Optical encryption for large-sized images using random phase-free method

Daisuke Hiyama, Marie Sano, Ryuji Hirayama, Satoki Hasegawa, Takashige Sugie, Takashi Kakue, Tomoyoshi Ito, Tomoyoshi Shimobaba, Yuki Nagahama, Yutaka Endo

arxiv:1503.00360 v1 · 2015-03-01 · physics.optics · 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{4PXTF7FUQYLFLIIWHTXL2LRE5I}

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	2026-05-18T02:25:54.631400Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

e3ef32fcb4861655a1163ceebd2e24ea3f4d192d996270246d3211988ba12b65

Aliases

arxiv: 1503.00360 · arxiv_version: 1503.00360v1 · doi: 10.48550/arxiv.1503.00360 · pith_short_12: 4PXTF7FUQYLF · pith_short_16: 4PXTF7FUQYLFLIIW · pith_short_8: 4PXTF7FU

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/4PXTF7FUQYLFLIIWHTXL2LRE5I \
  | 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: e3ef32fcb4861655a1163ceebd2e24ea3f4d192d996270246d3211988ba12b65

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "04f5dd26db047f725325c34b25f7a9c077f174f75781c5b88f6957ab15e83c25",
    "cross_cats_sorted": [
      "cs.CR"
    ],
    "license": "http://arxiv.org/licenses/nonexclusive-distrib/1.0/",
    "primary_cat": "physics.optics",
    "submitted_at": "2015-03-01T21:49:02Z",
    "title_canon_sha256": "0c86251cb24f31d0bfa8ffbeda6f73ba4fb4e5338b0d12fa9bb98d96431f8435"
  },
  "schema_version": "1.0",
  "source": {
    "id": "1503.00360",
    "kind": "arxiv",
    "version": 1
  }
}