Pith Number

pith:A5QJNLTB

pith:2019:A5QJNLTBP4ML5T43VPOSUGHIPK

not attested not anchored not stored refs pending

Accelerating Non-Cartesian MRI Reconstruction Convergence using k-space Preconditioning

Frank Ong, Martin Uecker, Michael Lustig

arxiv:1902.09657 v3 · 2019-02-25 · physics.med-ph

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

Add to your LaTeX paper

\usepackage{pith}
\pithnumber{A5QJNLTBP4ML5T43VPOSUGHIPK}

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	2026-07-05T01:02:00.991668Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

076096ae617f18becf9babdd2a18e87a9cfaee8f197d54904a1183c6384ef016

Aliases

arxiv: 1902.09657 · arxiv_version: 1902.09657v3 · doi: 10.48550/arxiv.1902.09657 · pith_short_12: A5QJNLTBP4ML · pith_short_16: A5QJNLTBP4ML5T43 · pith_short_8: A5QJNLTB

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/A5QJNLTBP4ML5T43VPOSUGHIPK \
  | 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: 076096ae617f18becf9babdd2a18e87a9cfaee8f197d54904a1183c6384ef016

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "b83a5958500096de70883a3d1b6e45946124d67ddcfcbcaa15c3cff02d692ca8",
    "cross_cats_sorted": [],
    "license": "http://arxiv.org/licenses/nonexclusive-distrib/1.0/",
    "primary_cat": "physics.med-ph",
    "submitted_at": "2019-02-25T23:13:37Z",
    "title_canon_sha256": "40092a113cfaa9735fb0fb1b50819c0566777b1e4d34e9624005f24372fb90eb"
  },
  "schema_version": "1.0",
  "source": {
    "id": "1902.09657",
    "kind": "arxiv",
    "version": 3
  }
}