Pith Number

pith:O3BNPKL7

pith:2014:O3BNPKL7RCLTBWMGD5F5ZNXUJ2

not attested not anchored not stored refs pending

Testable uniqueness conditions for empirical assessment of undersampling levels in total variation-regularized x-ray CT

Christian Kruschel, Dirk A. Lorenz, Jakob S. J{\o}rgensen

arxiv:1409.0214 v1 · 2014-08-31 · math.OC · cs.IT · math.IT

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

Add to your LaTeX paper

\usepackage{pith}
\pithnumber{O3BNPKL7RCLTBWMGD5F5ZNXUJ2}

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	2026-05-18T02:30:47.053637Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

76c2d7a97f889730d9861f4bdcb6f44e8d000645f0831c00bd736a3129600e70

Aliases

arxiv: 1409.0214 · arxiv_version: 1409.0214v1 · doi: 10.48550/arxiv.1409.0214 · pith_short_12: O3BNPKL7RCLT · pith_short_16: O3BNPKL7RCLTBWMG · pith_short_8: O3BNPKL7

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/O3BNPKL7RCLTBWMGD5F5ZNXUJ2 \
  | 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: 76c2d7a97f889730d9861f4bdcb6f44e8d000645f0831c00bd736a3129600e70

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "8481943b4f475b7f7f43c097f101b86201f75902eb6431530d93ab0658d7aa33",
    "cross_cats_sorted": [
      "cs.IT",
      "math.IT"
    ],
    "license": "http://arxiv.org/licenses/nonexclusive-distrib/1.0/",
    "primary_cat": "math.OC",
    "submitted_at": "2014-08-31T12:53:41Z",
    "title_canon_sha256": "b625706946d6fcbd944e5c415f7cac5d0ad1d2aec74dcfca2296fec6cca1f49b"
  },
  "schema_version": "1.0",
  "source": {
    "id": "1409.0214",
    "kind": "arxiv",
    "version": 1
  }
}