Pith Number

pith:WS5L6O4H

pith:2019:WS5L6O4HPOFOOF3KOII563ZGWX

not attested not anchored not stored refs pending

Convolutional Sparse Coding for Compressed Sensing CT Reconstruction

He Zhang, Huaiqiang Sun, Jiliu Zhou, Kang Yang, Mianyi Chen, Peng Bao, Shanzhou Niu, Weiyan Chen, Wenjun Xia, Yan Xi, Yi Zhang, Zhangyang Wang

arxiv:1903.08549 v1 · 2019-03-20 · physics.med-ph · 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{WS5L6O4HPOFOOF3KOII563ZGWX}

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	2026-05-17T23:50:47.785505Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

b4babf3b877b8ae7176a7211df6f26b5f8fad67c1ce262b7db339a8f91d152ac

Aliases

arxiv: 1903.08549 · arxiv_version: 1903.08549v1 · doi: 10.48550/arxiv.1903.08549 · pith_short_12: WS5L6O4HPOFO · pith_short_16: WS5L6O4HPOFOOF3K · pith_short_8: WS5L6O4H

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/WS5L6O4HPOFOOF3KOII563ZGWX \
  | 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: b4babf3b877b8ae7176a7211df6f26b5f8fad67c1ce262b7db339a8f91d152ac

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "051807e0ff5de2fc38fd0248d722aef3e4ebb0455f6ded742efea657d582affb",
    "cross_cats_sorted": [
      "cs.CV"
    ],
    "license": "http://arxiv.org/licenses/nonexclusive-distrib/1.0/",
    "primary_cat": "physics.med-ph",
    "submitted_at": "2019-03-20T15:14:58Z",
    "title_canon_sha256": "f37034aa3319bb77bbdd7174652f60a27bb824bc806272db9202e1854df06525"
  },
  "schema_version": "1.0",
  "source": {
    "id": "1903.08549",
    "kind": "arxiv",
    "version": 1
  }
}