Pith Number

pith:HAFNT77F

pith:2019:HAFNT77FLTDTBJYF2XT6K3JQ7C

not attested not anchored not stored refs pending

3-D Super-Resolution Ultrasound (SR-US) Imaging with a 2-D Sparse Array

A. Ramalli, C. Dunsby, C.H. Leow, E. Boni, G. Zhang, J. Brown, J. Zhu, K. Christensen-Jeffries, M. Toulemonde, M-X. Tang, P. Tortoli, R.J. Eckersley, S. Harput

arxiv:1902.01608 v1 · 2019-02-05 · 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{HAFNT77FLTDTBJYF2XT6K3JQ7C}

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	2026-07-05T01:43:12.566987Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

380ad9ffe55cc730a705d5e7e56d30f88a6b69ff27e9dd1b44f4a5b2ad4123b0

Aliases

arxiv: 1902.01608 · arxiv_version: 1902.01608v1 · doi: 10.48550/arxiv.1902.01608 · pith_short_12: HAFNT77FLTDT · pith_short_16: HAFNT77FLTDTBJYF · pith_short_8: HAFNT77F

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/HAFNT77FLTDTBJYF2XT6K3JQ7C \
  | 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: 380ad9ffe55cc730a705d5e7e56d30f88a6b69ff27e9dd1b44f4a5b2ad4123b0

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "e4141d4a9532d3538654719a629e9fee98ff9ee147d04f2e008849ead512c99f",
    "cross_cats_sorted": [],
    "license": "http://creativecommons.org/licenses/by/4.0/",
    "primary_cat": "physics.med-ph",
    "submitted_at": "2019-02-05T09:38:51Z",
    "title_canon_sha256": "2af08b65eaa5079bdb52006ac996b7b6af7fd9a2732ecfd1297eb9d9bef9c6f4"
  },
  "schema_version": "1.0",
  "source": {
    "id": "1902.01608",
    "kind": "arxiv",
    "version": 1
  }
}