Pith Number

pith:Z5N26E3P

pith:2025:Z5N26E3PRYAJ4HOCZX4COHQHZC

not attested not anchored not stored refs pending

Learned Correction Methods for Ultrasound Computed Tomography Imaging Using Simplified Physics Models

Brendt Wohlberg, Fu Li, Hanchen Wang, Luke Lozenski, Mark A. Anastasio, Umberto Villa, Youzuo Lin

arxiv:2502.09546 v1 · 2025-02-13 · eess.IV

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

Add to your LaTeX paper

\usepackage{pith}
\pithnumber{Z5N26E3PRYAJ4HOCZX4COHQHZC}

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	2026-07-05T10:13:59.328771Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

cf5baf136f8e009e1dc2cdf8271e07c883b605c077c19faafff122c04aef7b1e

Aliases

arxiv: 2502.09546 · arxiv_version: 2502.09546v1 · doi: 10.48550/arxiv.2502.09546 · pith_short_12: Z5N26E3PRYAJ · pith_short_16: Z5N26E3PRYAJ4HOC · pith_short_8: Z5N26E3P

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/Z5N26E3PRYAJ4HOCZX4COHQHZC \
  | 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: cf5baf136f8e009e1dc2cdf8271e07c883b605c077c19faafff122c04aef7b1e

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "56d9146e41106b3391d805d1e5b85c1eb42bb891cc9a5c52fe2424824fb78ba2",
    "cross_cats_sorted": [],
    "license": "http://creativecommons.org/licenses/by-nc-nd/4.0/",
    "primary_cat": "eess.IV",
    "submitted_at": "2025-02-13T17:59:04Z",
    "title_canon_sha256": "c8af2efa021a869e1c3affcd57b6e93738c6b1b8771f2499d90a62ab94a357f6"
  },
  "schema_version": "1.0",
  "source": {
    "id": "2502.09546",
    "kind": "arxiv",
    "version": 1
  }
}