Pith Number

pith:W4V4WL2E

pith:2026:W4V4WL2EEAJNK5KZ6RGTLQT7TT

not attested not anchored not stored refs pending

HPR-SAM: Hierarchical Probabilistic Representation Learning for Prompt-free SAM-based Medical Image Segmentation

Jionglong Su, Keying Zhu, Sifan Song, Xiaofeng Liu, Yiheng Zhong, Yingzhen Hu, Zihan Ye, Zimu Zhang

arxiv:2607.06972 v1 · 2026-07-08 · 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{W4V4WL2EEAJNK5KZ6RGTLQT7TT}

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	2026-07-09T00:19:41.746883Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

b72bcb2f442012d57559f44d35c27f9cdae726f6a2d6720c5d8aa1f4fdda65a4

Aliases

arxiv: 2607.06972 · arxiv_version: 2607.06972v1 · doi: 10.48550/arxiv.2607.06972 · pith_short_12: W4V4WL2EEAJN · pith_short_16: W4V4WL2EEAJNK5KZ · pith_short_8: W4V4WL2E

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/W4V4WL2EEAJNK5KZ6RGTLQT7TT \
  | 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: b72bcb2f442012d57559f44d35c27f9cdae726f6a2d6720c5d8aa1f4fdda65a4

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "c78756fb92c979d56aac2d4f0b43b88fa8088e7fb318a64c958af6109b321ac7",
    "cross_cats_sorted": [],
    "license": "http://arxiv.org/licenses/nonexclusive-distrib/1.0/",
    "primary_cat": "cs.CV",
    "submitted_at": "2026-07-08T03:49:08Z",
    "title_canon_sha256": "c838a9d0b4ef93fc961be7415b9de4d2e371007df6ffed398b5542655fe7e2ee"
  },
  "schema_version": "1.0",
  "source": {
    "id": "2607.06972",
    "kind": "arxiv",
    "version": 1
  }
}