Pith Number

pith:ND4G6IE7

pith:2019:ND4G6IE766AE3FFCOER6EBUAZA

not attested not anchored not stored refs pending

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

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:1902.02631 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{ND4G6IE766AE3FFCOER6EBUAZA}

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	2026-05-17T23:54:32.656894Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

68f86f209ff7804d94a27123e20680c81c20b4e287857ada5d8306e03936cbd2

Aliases

arxiv: 1902.02631 · arxiv_version: 1902.02631v1 · doi: 10.48550/arxiv.1902.02631 · pith_short_12: ND4G6IE766AE · pith_short_16: ND4G6IE766AE3FFC · pith_short_8: ND4G6IE7

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/ND4G6IE766AE3FFCOER6EBUAZA \
  | 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: 68f86f209ff7804d94a27123e20680c81c20b4e287857ada5d8306e03936cbd2

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "3e1f86cad3539a8cdad3e2a40fa51d9bb7b83619daead01f2137d48a66db13af",
    "cross_cats_sorted": [],
    "license": "http://creativecommons.org/licenses/by/4.0/",
    "primary_cat": "physics.med-ph",
    "submitted_at": "2019-02-05T21:43:19Z",
    "title_canon_sha256": "6c5647a25fb0b51dbd87d02c56c9c10a7512cffd0040574a86261aeb99a4e2ca"
  },
  "schema_version": "1.0",
  "source": {
    "id": "1902.02631",
    "kind": "arxiv",
    "version": 1
  }
}