Pith Number

pith:UQ5FC2UW

pith:2016:UQ5FC2UWMMAQOUQIC5KYAFZ6UL

not attested not anchored not stored refs pending

Fast Backprojection Techniques for High Resolution Tomography

Eduardo X. Miqueles, Elias S. Helou, Nikolay Koshev

arxiv:1608.03589 v1 · 2016-08-11 · math.NA · 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{UQ5FC2UWMMAQOUQIC5KYAFZ6UL}

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	2026-05-18T01:09:12.445613Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

a43a516a966301075208175580173ea2e3e7e045bd2ec6ec03d517188c79a144

Aliases

arxiv: 1608.03589 · arxiv_version: 1608.03589v1 · doi: 10.48550/arxiv.1608.03589 · pith_short_12: UQ5FC2UWMMAQ · pith_short_16: UQ5FC2UWMMAQOUQI · pith_short_8: UQ5FC2UW

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/UQ5FC2UWMMAQOUQIC5KYAFZ6UL \
  | 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: a43a516a966301075208175580173ea2e3e7e045bd2ec6ec03d517188c79a144

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "e46133866528286a0517894cf4df6622f1aed8a250d6ef860c95667a3d153d1a",
    "cross_cats_sorted": [
      "physics.med-ph"
    ],
    "license": "http://arxiv.org/licenses/nonexclusive-distrib/1.0/",
    "primary_cat": "math.NA",
    "submitted_at": "2016-08-11T16:56:36Z",
    "title_canon_sha256": "5285dd686b0c21eaff9e5744bc1e056a76fc9af2ef4a6accb85f0208ea336e69"
  },
  "schema_version": "1.0",
  "source": {
    "id": "1608.03589",
    "kind": "arxiv",
    "version": 1
  }
}