Pith Number

pith:EJKZIUUV

pith:2012:EJKZIUUVWSC7UBHNO7SM52KVV2

not attested not anchored not stored refs pending

Superiorization of EM Algorithm and Its Application in Single-Photon Emission Computed Tomography(SPECT)

Shousheng Luo, Tie Zhou

arxiv:1209.6116 v5 · 2012-09-27 · math.OC

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

Add to your LaTeX paper

\usepackage{pith}
\pithnumber{EJKZIUUVWSC7UBHNO7SM52KVV2}

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	2026-05-18T03:21:43.576171Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

2255945295b485fa04ed77e4cee955ae853b92af9976d6dd4bc9e3857e886d09

Aliases

arxiv: 1209.6116 · arxiv_version: 1209.6116v5 · doi: 10.48550/arxiv.1209.6116 · pith_short_12: EJKZIUUVWSC7 · pith_short_16: EJKZIUUVWSC7UBHN · pith_short_8: EJKZIUUV

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/EJKZIUUVWSC7UBHNO7SM52KVV2 \
  | 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: 2255945295b485fa04ed77e4cee955ae853b92af9976d6dd4bc9e3857e886d09

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "2d8863150e62fc866efb9ee9973699a744a4e8ee9ad7de2aaf70c54db5205ebf",
    "cross_cats_sorted": [],
    "license": "http://arxiv.org/licenses/nonexclusive-distrib/1.0/",
    "primary_cat": "math.OC",
    "submitted_at": "2012-09-27T03:02:02Z",
    "title_canon_sha256": "a6536d38335b95f01ed9de26c728c71685f7a4567f9e86041a5fbeab2784eb9f"
  },
  "schema_version": "1.0",
  "source": {
    "id": "1209.6116",
    "kind": "arxiv",
    "version": 5
  }
}