Pith Number

pith:Y4ZJDMTB

pith:2021:Y4ZJDMTBB3WAX4N5ASROIXMRAD

not attested not anchored not stored refs pending

A Unifying Approach to Inverse Problems of Ultrasound Beamforming and Deconvolution

Adrian Basarab, Hassan Rivaz, Sobhan Goudarzi

arxiv:2112.14294 v2 · 2021-12-28 · eess.IV · 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{Y4ZJDMTBB3WAX4N5ASROIXMRAD}

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	2026-07-05T04:53:26.167593Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

c73291b2610eec0bf1bd04a2e45d9100f3ad3046f036f183a6956cc84537c7d0

Aliases

arxiv: 2112.14294 · arxiv_version: 2112.14294v2 · doi: 10.48550/arxiv.2112.14294 · pith_short_12: Y4ZJDMTBB3WA · pith_short_16: Y4ZJDMTBB3WAX4N5 · pith_short_8: Y4ZJDMTB

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/Y4ZJDMTBB3WAX4N5ASROIXMRAD \
  | 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: c73291b2610eec0bf1bd04a2e45d9100f3ad3046f036f183a6956cc84537c7d0

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "f261db1a813370e5e59f29b7c92471f06484c6e6d0963634d16b8eceb4abe2cb",
    "cross_cats_sorted": [
      "physics.med-ph"
    ],
    "license": "http://creativecommons.org/licenses/by-nc-nd/4.0/",
    "primary_cat": "eess.IV",
    "submitted_at": "2021-12-28T20:54:41Z",
    "title_canon_sha256": "a7110dc6ba4859b693a6adcbbd0f7e25b59913795b3ef8a971d5aae8949f4185"
  },
  "schema_version": "1.0",
  "source": {
    "id": "2112.14294",
    "kind": "arxiv",
    "version": 2
  }
}