Pith Number

pith:I4OBKWZP

pith:2018:I4OBKWZPTPF2NARTXTBG7NTSK5

not attested not anchored not stored refs pending

Reversible Image Watermarking for Health Informatics Systems Using Distortion Compensation in Wavelet Domain

Hamidreza Zarrabi, Kayvan Najarian, Mohsen Hajabdollahi, Nader Karimi, Shadrokh Samavi, S.M.Reza Soroushmehr

arxiv:1802.07786 v1 · 2018-02-21 · 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{I4OBKWZPTPF2NARTXTBG7NTSK5}

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	2026-05-18T00:22:48.893720Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

471c155b2f9bcba68233bcc26fb6725761ec33c81b22ccc0180fd6ef92e8ff57

Aliases

arxiv: 1802.07786 · arxiv_version: 1802.07786v1 · doi: 10.48550/arxiv.1802.07786 · pith_short_12: I4OBKWZPTPF2 · pith_short_16: I4OBKWZPTPF2NART · pith_short_8: I4OBKWZP

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/I4OBKWZPTPF2NARTXTBG7NTSK5 \
  | 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: 471c155b2f9bcba68233bcc26fb6725761ec33c81b22ccc0180fd6ef92e8ff57

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "d30f18a106a4155731e484edbb7558be685dbf2bf3c436298f6f0b029729f037",
    "cross_cats_sorted": [],
    "license": "http://arxiv.org/licenses/nonexclusive-distrib/1.0/",
    "primary_cat": "cs.CV",
    "submitted_at": "2018-02-21T20:17:39Z",
    "title_canon_sha256": "c663e08a0cd2eeacf3a8895b5b47f06ec24dc9b2a208124b6cfb5b864eee6764"
  },
  "schema_version": "1.0",
  "source": {
    "id": "1802.07786",
    "kind": "arxiv",
    "version": 1
  }
}