Pith Number

pith:22SJ73BU

pith:2017:22SJ73BUKWUCL5IOV2OWAZLIUA

not attested not anchored not stored refs pending

A Variational Reconstruction Method for Undersampled Dynamic X-ray Tomography based on Physical Motion Models

Andreas Hauptmann, Hendrik Dirks, Lena Frerking, Martin Burger, Samuli Siltanen, Tapio Helin

arxiv:1705.06079 v1 · 2017-05-17 · math.NA · 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{22SJ73BUKWUCL5IOV2OWAZLIUA}

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	2026-05-18T00:20:17.182696Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

d6a49fec3455a825f50eae9d606568a01c2a4d9f289e449f104ea176963a7956

Aliases

arxiv: 1705.06079 · arxiv_version: 1705.06079v1 · doi: 10.48550/arxiv.1705.06079 · pith_short_12: 22SJ73BUKWUC · pith_short_16: 22SJ73BUKWUCL5IO · pith_short_8: 22SJ73BU

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/22SJ73BUKWUCL5IOV2OWAZLIUA \
  | 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: d6a49fec3455a825f50eae9d606568a01c2a4d9f289e449f104ea176963a7956

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "630e1185766957cfa9c99d6b8ad48fb0b7cfc2d759ea3e9bcc2db42becf4d4a5",
    "cross_cats_sorted": [
      "math.OC"
    ],
    "license": "http://arxiv.org/licenses/nonexclusive-distrib/1.0/",
    "primary_cat": "math.NA",
    "submitted_at": "2017-05-17T10:33:04Z",
    "title_canon_sha256": "bfda4923fa72067fc2b4e66043b9ef391e99beef4bbf84084fcd7eea187397df"
  },
  "schema_version": "1.0",
  "source": {
    "id": "1705.06079",
    "kind": "arxiv",
    "version": 1
  }
}