Pith Number

pith:JKIWKML4

pith:2015:JKIWKML4CJVBJ24WWW3CM2EVKY

not attested not anchored not stored refs pending

Fast algorithms and efficient GPU implementations for the Radon transform and the back-projection operator represented as convolution operators

Fredrik Andersson, Marcus Carlsson, Viktor V. Nikitin

arxiv:1506.00014 v1 · 2015-05-29 · 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{JKIWKML4CJVBJ24WWW3CM2EVKY}

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	2026-05-18T01:59:55.686331Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

4a9165317c126a14eb96b5b626689556153c5c5837e82f418d647f9b69c36b91

Aliases

arxiv: 1506.00014 · arxiv_version: 1506.00014v1 · doi: 10.48550/arxiv.1506.00014 · pith_short_12: JKIWKML4CJVB · pith_short_16: JKIWKML4CJVBJ24W · pith_short_8: JKIWKML4

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/JKIWKML4CJVBJ24WWW3CM2EVKY \
  | 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: 4a9165317c126a14eb96b5b626689556153c5c5837e82f418d647f9b69c36b91

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "6a12a1519fbd0c8f509101278987f03f7fdbda2253e0792e528ce17b7fc07d15",
    "cross_cats_sorted": [],
    "license": "http://arxiv.org/licenses/nonexclusive-distrib/1.0/",
    "primary_cat": "math.NA",
    "submitted_at": "2015-05-29T20:11:18Z",
    "title_canon_sha256": "e8382b1d3799024e36c1b33a183924764532bf389d757499df6c1fab10fae33a"
  },
  "schema_version": "1.0",
  "source": {
    "id": "1506.00014",
    "kind": "arxiv",
    "version": 1
  }
}