Pith Number

pith:WS4LIXDE

pith:2013:WS4LIXDEZHTIJ4CYWUEC6ZE7TU

not attested not anchored not stored refs pending

Kernel Sparse Models for Automated Tumor Segmentation

Andreas Spanias, Anup Puri, David Frakes, Deepta Rajan, Jayaraman J. Thiagarajan, Karthikeyan Natesan Ramamurthy

arxiv:1303.2610 v1 · 2013-03-11 · 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{WS4LIXDEZHTIJ4CYWUEC6ZE7TU}

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	2026-05-18T03:31:18.505476Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

b4b8b45c64c9e684f058b5082f649f9d1cc48b73c123522360f543377f604797

Aliases

arxiv: 1303.2610 · arxiv_version: 1303.2610v1 · doi: 10.48550/arxiv.1303.2610 · pith_short_12: WS4LIXDEZHTI · pith_short_16: WS4LIXDEZHTIJ4CY · pith_short_8: WS4LIXDE

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/WS4LIXDEZHTIJ4CYWUEC6ZE7TU \
  | 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: b4b8b45c64c9e684f058b5082f649f9d1cc48b73c123522360f543377f604797

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "fb36a4bb8a09dd4e752b7d2f2232179f68965713d7104b76b9d048812f47ff92",
    "cross_cats_sorted": [],
    "license": "http://arxiv.org/licenses/nonexclusive-distrib/1.0/",
    "primary_cat": "cs.CV",
    "submitted_at": "2013-03-11T18:33:01Z",
    "title_canon_sha256": "60343f788f85075598993433b972340128c7e7b19803f20b4528089951acd003"
  },
  "schema_version": "1.0",
  "source": {
    "id": "1303.2610",
    "kind": "arxiv",
    "version": 1
  }
}