Pith Number

pith:JW7LRJGF

pith:2014:JW7LRJGFCXAD4H27ISVNL4QLLA

not attested not anchored not stored refs pending

Sinogram constrained TV-minimization for metal artifact reduction in CT

Clemens Schiffer, Kristian Bredies

arxiv:1404.6691 v1 · 2014-04-26 · math.NA · cs.CV · 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{JW7LRJGFCXAD4H27ISVNL4QLLA}

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	2026-05-18T02:52:57.443998Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

4dbeb8a4c515c03e1f5f44aad5f20b5834a7f4c025796d1a332fd5303b757a5c

Aliases

arxiv: 1404.6691 · arxiv_version: 1404.6691v1 · doi: 10.48550/arxiv.1404.6691 · pith_short_12: JW7LRJGFCXAD · pith_short_16: JW7LRJGFCXAD4H27 · pith_short_8: JW7LRJGF

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/JW7LRJGFCXAD4H27ISVNL4QLLA \
  | 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: 4dbeb8a4c515c03e1f5f44aad5f20b5834a7f4c025796d1a332fd5303b757a5c

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "ab2f70b6941f1f448d861d079aad3b2f3463c239ba7826d8a3596c8885472c69",
    "cross_cats_sorted": [
      "cs.CV",
      "physics.med-ph"
    ],
    "license": "http://arxiv.org/licenses/nonexclusive-distrib/1.0/",
    "primary_cat": "math.NA",
    "submitted_at": "2014-04-26T22:41:20Z",
    "title_canon_sha256": "991af495f78e264210a22dfaccf971959c45f1d83ba16cead8fc3cab378be0a1"
  },
  "schema_version": "1.0",
  "source": {
    "id": "1404.6691",
    "kind": "arxiv",
    "version": 1
  }
}