Pith Number

pith:U3YDXW5Z

pith:2019:U3YDXW5ZCQTXCVVMODMP5I2ZAJ

not attested not anchored not stored refs pending

Automated Segmentation of Knee MRI Using Hierarchical Classifiers and Just Enough Interaction Based Learning: Data from Osteoarthritis Initiative

Honghai Zhang, Ipek Oguz, Milan Sonka, Satyananda Kashyap

arxiv:1903.03929 v1 · 2019-03-10 · cs.CV · cs.LG

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

Add to your LaTeX paper

\usepackage{pith}
\pithnumber{U3YDXW5ZCQTXCVVMODMP5I2ZAJ}

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	2026-05-17T23:51:40.575387Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

a6f03bdbb914277156ac70d8fea35902749f6be59379f6386efcfb3cfd6b39b7

Aliases

arxiv: 1903.03929 · arxiv_version: 1903.03929v1 · doi: 10.48550/arxiv.1903.03929 · pith_short_12: U3YDXW5ZCQTX · pith_short_16: U3YDXW5ZCQTXCVVM · pith_short_8: U3YDXW5Z

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/U3YDXW5ZCQTXCVVMODMP5I2ZAJ \
  | 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: a6f03bdbb914277156ac70d8fea35902749f6be59379f6386efcfb3cfd6b39b7

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "521089d8ca7b0a84fb2aa40652f88817acb8cd6d6e5c7867cdd51eb80a127668",
    "cross_cats_sorted": [
      "cs.LG"
    ],
    "license": "http://arxiv.org/licenses/nonexclusive-distrib/1.0/",
    "primary_cat": "cs.CV",
    "submitted_at": "2019-03-10T06:01:23Z",
    "title_canon_sha256": "da3abdf02582632c792e047882a6a9f6361c785aad563754c499c6cd91e3f271"
  },
  "schema_version": "1.0",
  "source": {
    "id": "1903.03929",
    "kind": "arxiv",
    "version": 1
  }
}