Pith Number

pith:NPVRFD2O

pith:2018:NPVRFD2OFAIGDEZPZQ44BRQHQT

not attested not anchored not stored refs pending

A Novel Color Image Enhancement Method by the Transformation of Color Images to 2-D Grayscale Images

Aparna John, Artyom M Grigoryan, Sos S Agaian

arxiv:1807.07962 v1 · 2018-07-20 · eess.IV · cs.CV

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

Add to your LaTeX paper

\usepackage{pith}
\pithnumber{NPVRFD2OFAIGDEZPZQ44BRQHQT}

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	2026-05-18T00:10:14.589890Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

6beb128f4e281061932fcc39c0c60784ed8e13cc76bf07e3c95b6fbf6dcf0627

Aliases

arxiv: 1807.07962 · arxiv_version: 1807.07962v1 · doi: 10.48550/arxiv.1807.07962 · pith_short_12: NPVRFD2OFAIG · pith_short_16: NPVRFD2OFAIGDEZP · pith_short_8: NPVRFD2O

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/NPVRFD2OFAIGDEZPZQ44BRQHQT \
  | 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: 6beb128f4e281061932fcc39c0c60784ed8e13cc76bf07e3c95b6fbf6dcf0627

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "5a51a2ac4b0bba956d140a82f119d77316f02a79c32f4a26b570bb88aa4cfe1e",
    "cross_cats_sorted": [
      "cs.CV"
    ],
    "license": "http://arxiv.org/licenses/nonexclusive-distrib/1.0/",
    "primary_cat": "eess.IV",
    "submitted_at": "2018-07-20T04:18:21Z",
    "title_canon_sha256": "aa5e4e2a002e7e4e774fc7e4ee1842e5d4808035bd9b29ee2f40a66bcab84eb8"
  },
  "schema_version": "1.0",
  "source": {
    "id": "1807.07962",
    "kind": "arxiv",
    "version": 1
  }
}