Pith Number

pith:SF2S5OBV

pith:2021:SF2S5OBVPVSUMVSPLP7MBQCR2K

not attested not anchored not stored refs pending

Deep learning-based noise reduction in low dose SPECT Myocardial Perfusion Imaging: Quantitative assessment and clinical performance

Alireza Kamali-Asl1, Hossein Arabi, Narges Aghakhan Olia, Parham Geramifar, Peyman Sheikhzadeh, Saeed Farzanefar, Sanaz Hariri Tabrizi

arxiv:2103.11974 v1 · 2021-03-22 · physics.med-ph · eess.IV

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

Add to your LaTeX paper

\usepackage{pith}
\pithnumber{SF2S5OBVPVSUMVSPLP7MBQCR2K}

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	2026-07-05T02:25:13.954081Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

91752eb8357d6546564f5bfec0c051d29a7dd09f0ba1dd46b28fa7d0b69a54cc

Aliases

arxiv: 2103.11974 · arxiv_version: 2103.11974v1 · doi: 10.48550/arxiv.2103.11974 · pith_short_12: SF2S5OBVPVSU · pith_short_16: SF2S5OBVPVSUMVSP · pith_short_8: SF2S5OBV

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/SF2S5OBVPVSUMVSPLP7MBQCR2K \
  | 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: 91752eb8357d6546564f5bfec0c051d29a7dd09f0ba1dd46b28fa7d0b69a54cc

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "1f2b46c610608ce7c627aa73875b13e6da999c385e1218176a92970501655739",
    "cross_cats_sorted": [
      "eess.IV"
    ],
    "license": "http://arxiv.org/licenses/nonexclusive-distrib/1.0/",
    "primary_cat": "physics.med-ph",
    "submitted_at": "2021-03-22T16:22:03Z",
    "title_canon_sha256": "63486059dba56067167476f226b9da8516c64944acbd8d3a658523e3ef62dab6"
  },
  "schema_version": "1.0",
  "source": {
    "id": "2103.11974",
    "kind": "arxiv",
    "version": 1
  }
}