Pith Number

pith:5NXTEXF7

pith:2019:5NXTEXF7CRCL2ZXEWDTMUF7VE6

not attested not anchored not stored refs pending

Computed stereo lensless X-ray imaging

B. Iwan, F. Fortuna, H. Merdji, J. Duarte, J. Huijts, L. Delbecq, M. Fajardo, M. Kholodtsova, M. Kovacev, R. Cassin, W. Boutu

arxiv:1909.04520 v1 · 2019-09-09 · eess.IV · physics.optics

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

Add to your LaTeX paper

\usepackage{pith}
\pithnumber{5NXTEXF7CRCL2ZXEWDTMUF7VE6}

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	2026-07-05T00:03:22.896875Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

eb6f325cbf1444bd66e4b0e6ca17f5278d920612ab5118abce6169fceb001937

Aliases

arxiv: 1909.04520 · arxiv_version: 1909.04520v1 · doi: 10.48550/arxiv.1909.04520 · pith_short_12: 5NXTEXF7CRCL · pith_short_16: 5NXTEXF7CRCL2ZXE · pith_short_8: 5NXTEXF7

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/5NXTEXF7CRCL2ZXEWDTMUF7VE6 \
  | 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: eb6f325cbf1444bd66e4b0e6ca17f5278d920612ab5118abce6169fceb001937

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "b665ae37bca724de47c5319d662029bd22a553017f9e556ed604634bd751dfcf",
    "cross_cats_sorted": [
      "physics.optics"
    ],
    "license": "http://arxiv.org/licenses/nonexclusive-distrib/1.0/",
    "primary_cat": "eess.IV",
    "submitted_at": "2019-09-09T12:01:02Z",
    "title_canon_sha256": "151754d96231e232578e03025db0dea9f97829d70c30476e1e1d1370cb0b5a6a"
  },
  "schema_version": "1.0",
  "source": {
    "id": "1909.04520",
    "kind": "arxiv",
    "version": 1
  }
}