Pith Number

pith:D5BWCTGA

pith:2026:D5BWCTGAZW2U7KGJR2F4KBKNLW

not attested not anchored not stored refs pending

EchoPilot: Training-Free Ultrasound Video Segmentation via Scale-Space Semantic Prompting and Reliability-Gated Memory

Kaishun Wu, Lei Zhu, Ruiqiang Xiao, Weiming Wang, Yijun Yang, Zhaohu Xing, Zhenyan Han

arxiv:2605.25944 v1 · 2026-05-25 · cs.CV · cs.AI

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

Add to your LaTeX paper

\usepackage{pith}
\pithnumber{D5BWCTGAZW2U7KGJR2F4KBKNLW}

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	2026-05-26T02:05:19.476220Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

1f43614cc0cdb54fa8c98e8bc5054d5da50dc1f057c6fe18fb0631ba7df1b776

Aliases

arxiv: 2605.25944 · arxiv_version: 2605.25944v1 · doi: 10.48550/arxiv.2605.25944 · pith_short_12: D5BWCTGAZW2U · pith_short_16: D5BWCTGAZW2U7KGJ · pith_short_8: D5BWCTGA

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/D5BWCTGAZW2U7KGJR2F4KBKNLW \
  | 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: 1f43614cc0cdb54fa8c98e8bc5054d5da50dc1f057c6fe18fb0631ba7df1b776

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "f0a2a3882996b46556c60523cea8a650c68bc7d9fa10a093e6d8c68c06d534b9",
    "cross_cats_sorted": [
      "cs.AI"
    ],
    "license": "http://arxiv.org/licenses/nonexclusive-distrib/1.0/",
    "primary_cat": "cs.CV",
    "submitted_at": "2026-05-25T15:22:05Z",
    "title_canon_sha256": "3138e548a0b450ba924eef9cc388dd4f2784cb6a6a4c409741249deb1e6b9f42"
  },
  "schema_version": "1.0",
  "source": {
    "id": "2605.25944",
    "kind": "arxiv",
    "version": 1
  }
}