Pith Number

pith:5B77G2SE

pith:2021:5B77G2SENXZZVWISH2MNOUAOAY

not attested not anchored not stored refs pending

Learning Fuzzy Clustering for SPECT/CT Segmentation via Convolutional Neural Networks

Eric C. Frey, Hyun Woo Chung, Junyu Chen, Licia P. Luna, Lilja B. Solnes, Steven P. Rowe, Ye Li, Yong Du

arxiv:2104.08623 v3 · 2021-04-17 · 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{5B77G2SENXZZVWISH2MNOUAOAY}

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	2026-07-05T02:44:06.194030Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

e87ff36a446df39ad9123e98d7500e0604f7369ded992dcef98bb11a1d09e970

Aliases

arxiv: 2104.08623 · arxiv_version: 2104.08623v3 · doi: 10.48550/arxiv.2104.08623 · pith_short_12: 5B77G2SENXZZ · pith_short_16: 5B77G2SENXZZVWIS · pith_short_8: 5B77G2SE

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/5B77G2SENXZZVWISH2MNOUAOAY \
  | 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: e87ff36a446df39ad9123e98d7500e0604f7369ded992dcef98bb11a1d09e970

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "52746184c6a8713526433646f0fa4ce5582e7ec55be7933a06f691668d50531b",
    "cross_cats_sorted": [],
    "license": "http://arxiv.org/licenses/nonexclusive-distrib/1.0/",
    "primary_cat": "cs.CV",
    "submitted_at": "2021-04-17T19:03:52Z",
    "title_canon_sha256": "096ca1584972c57f879be5a120553fcba97d5c7560fce4dcc1b089c0fd720711"
  },
  "schema_version": "1.0",
  "source": {
    "id": "2104.08623",
    "kind": "arxiv",
    "version": 3
  }
}