Pith Number

pith:GRKWQCXD

pith:2017:GRKWQCXDF72H3VPQU7Y44CSZZT

not attested not anchored not stored refs pending

Superiorized algorithm for reconstruction of CT images from sparse-view and limited-angle polyenergetic data

A. Faridani, J. Winn, T. Humphries

arxiv:1701.03396 v3 · 2017-01-11 · 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{GRKWQCXDF72H3VPQU7Y44CSZZT}

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	2026-05-18T00:34:05.034904Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

3455680ae32ff47dd5f0a7f1ce0a59ccecec29248065e14be4327e6c5989c0d4

Aliases

arxiv: 1701.03396 · arxiv_version: 1701.03396v3 · doi: 10.48550/arxiv.1701.03396 · pith_short_12: GRKWQCXDF72H · pith_short_16: GRKWQCXDF72H3VPQ · pith_short_8: GRKWQCXD

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/GRKWQCXDF72H3VPQU7Y44CSZZT \
  | 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: 3455680ae32ff47dd5f0a7f1ce0a59ccecec29248065e14be4327e6c5989c0d4

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "aade67a25645111ceea7e0c906403a3418e1bda4aa1f4a44c6f9a3835b8bc9a1",
    "cross_cats_sorted": [],
    "license": "http://arxiv.org/licenses/nonexclusive-distrib/1.0/",
    "primary_cat": "physics.med-ph",
    "submitted_at": "2017-01-11T00:32:28Z",
    "title_canon_sha256": "ae35581ff51b81d531f6534375bbc28a9def2adde710f235f413496a16a3fec7"
  },
  "schema_version": "1.0",
  "source": {
    "id": "1701.03396",
    "kind": "arxiv",
    "version": 3
  }
}