Pith Number

pith:OH45NJEM

pith:2018:OH45NJEM3XXM5HDQPA35LCEQJQ

not attested not anchored not stored refs pending

Lossless Compression of Angiogram Foreground with Visual Quality Preservation of Background

Ali Emami, Kayvan Najarian, Mahdi Ahmadi, Mohsen Hajabdollahi, Nader Karimi, Shadrokh Samavi, S.M.Reza Soroushmehr

arxiv:1802.07769 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{OH45NJEM3XXM5HDQPA35LCEQJQ}

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	2026-05-18T00:22:48.953895Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

71f9d6a48cddeece9c707837d588904c1f88e9f85b85d472101c0d2155c16508

Aliases

arxiv: 1802.07769 · arxiv_version: 1802.07769v1 · doi: 10.48550/arxiv.1802.07769 · pith_short_12: OH45NJEM3XXM · pith_short_16: OH45NJEM3XXM5HDQ · pith_short_8: OH45NJEM

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/OH45NJEM3XXM5HDQPA35LCEQJQ \
  | 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: 71f9d6a48cddeece9c707837d588904c1f88e9f85b85d472101c0d2155c16508

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "87dc62fa20d3a1c47e407f3f8d0bfae62621e560273ea6ce4c93b5943c26f3fd",
    "cross_cats_sorted": [],
    "license": "http://arxiv.org/licenses/nonexclusive-distrib/1.0/",
    "primary_cat": "cs.CV",
    "submitted_at": "2018-02-21T19:42:50Z",
    "title_canon_sha256": "cc8126c035890a22639e707106cfcff176dcc79d4daef2d6aa19861ce35dc00d"
  },
  "schema_version": "1.0",
  "source": {
    "id": "1802.07769",
    "kind": "arxiv",
    "version": 1
  }
}