Pith Number

pith:K4CB2SBZ

pith:2026:K4CB2SBZZCPNFDIEBPRTXUHKIE

not attested not anchored not stored refs pending

UltraSAM3: A Concept-Driven Foundation Model for Universal Ultrasound Image Segmentation

Boling Zhu, Bo Xu, Chenhua Ji, Chenyuan Wang, Feng Xia, Hongfei Lin, Quanhao Zhu, Rui Lin

arxiv:2607.29200 v1 · 2026-07-31 · cs.CV

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

Add to your LaTeX paper

\usepackage{pith}
\pithnumber{K4CB2SBZZCPNFDIEBPRTXUHKIE}

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	2026-08-03T01:21:10.904558Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

57041d4839c89ed28d040be33bd0ea413f4e8ae42d9dac1d16696f8ec9b6ce9e

Aliases

arxiv: 2607.29200 · arxiv_version: 2607.29200v1 · doi: 10.48550/arxiv.2607.29200 · pith_short_12: K4CB2SBZZCPN · pith_short_16: K4CB2SBZZCPNFDIE · pith_short_8: K4CB2SBZ

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/K4CB2SBZZCPNFDIEBPRTXUHKIE \
  | 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: 57041d4839c89ed28d040be33bd0ea413f4e8ae42d9dac1d16696f8ec9b6ce9e

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "37b57b3c609db948bd2fa7596c0ef4a392a5d4e9ac985f951d08179ea8367342",
    "cross_cats_sorted": [],
    "license": "http://creativecommons.org/licenses/by/4.0/",
    "primary_cat": "cs.CV",
    "submitted_at": "2026-07-31T09:19:49Z",
    "title_canon_sha256": "8b20ee832eff49b70a82824e0166d8fc675ac3d0430baba7f1f9ef178e3aa3be"
  },
  "schema_version": "1.0",
  "source": {
    "id": "2607.29200",
    "kind": "arxiv",
    "version": 1
  }
}