Pith Number

pith:AD7FGPZL

pith:2018:AD7FGPZLSEC7CUJ7X65JNPYCBT

not attested not anchored not stored refs pending

Spherical function regularization for parallel MRI reconstruction

Tuomo Valkonen, Yonggui Zhu

arxiv:1802.01108 v1 · 2018-02-04 · math.NA

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

Add to your LaTeX paper

\usepackage{pith}
\pithnumber{AD7FGPZLSEC7CUJ7X65JNPYCBT}

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	2026-05-18T00:24:27.311764Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

00fe533f2b9105f1513fbfba96bf020cca5b94382e79343289082ea104d9ccdd

Aliases

arxiv: 1802.01108 · arxiv_version: 1802.01108v1 · doi: 10.48550/arxiv.1802.01108 · pith_short_12: AD7FGPZLSEC7 · pith_short_16: AD7FGPZLSEC7CUJ7 · pith_short_8: AD7FGPZL

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/AD7FGPZLSEC7CUJ7X65JNPYCBT \
  | 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: 00fe533f2b9105f1513fbfba96bf020cca5b94382e79343289082ea104d9ccdd

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "4c2507088ba8f1cb91e3fcfe24084dfd5b53b3b6b4495b68c345868e83c8cd27",
    "cross_cats_sorted": [],
    "license": "http://arxiv.org/licenses/nonexclusive-distrib/1.0/",
    "primary_cat": "math.NA",
    "submitted_at": "2018-02-04T10:48:03Z",
    "title_canon_sha256": "cb233b7cb1a4f51399215770d34a3d6cb7f26b5314affa6d6d8a12187d2b43a4"
  },
  "schema_version": "1.0",
  "source": {
    "id": "1802.01108",
    "kind": "arxiv",
    "version": 1
  }
}