Pith Number

pith:G3553OUE

pith:2018:G3553OUEMKOD5GNBWHG2U73NLH

not attested not anchored not stored refs pending

Three material decomposition for spectral computed tomography enabled by block-diagonal step-preconditioning

Emil Y. Sidky, Rina Foygel Barber, Taly Gilat-Schmidt, Xiaochuan Pan

arxiv:1801.06263 v1 · 2018-01-19 · 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{G3553OUEMKOD5GNBWHG2U73NLH}

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	2026-05-18T00:25:33.018760Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

36fbddba84629c3e99a1b1cdaa7f6d59e8005e7d5d9d27d92970e8ea0459f907

Aliases

arxiv: 1801.06263 · arxiv_version: 1801.06263v1 · doi: 10.48550/arxiv.1801.06263 · pith_short_12: G3553OUEMKOD · pith_short_16: G3553OUEMKOD5GNB · pith_short_8: G3553OUE

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/G3553OUEMKOD5GNBWHG2U73NLH \
  | 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: 36fbddba84629c3e99a1b1cdaa7f6d59e8005e7d5d9d27d92970e8ea0459f907

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "0fd406be06c57069b97dbab9fd9d05ade93e86fd197f4721f8e17a3102675b91",
    "cross_cats_sorted": [],
    "license": "http://arxiv.org/licenses/nonexclusive-distrib/1.0/",
    "primary_cat": "physics.med-ph",
    "submitted_at": "2018-01-19T00:36:02Z",
    "title_canon_sha256": "ebe2e1484428d8fe6d86e3a51e4fe9f58fde62594e28ef44366b144a2662e897"
  },
  "schema_version": "1.0",
  "source": {
    "id": "1801.06263",
    "kind": "arxiv",
    "version": 1
  }
}