Pith Number

pith:PDMUV4PN

pith:2020:PDMUV4PNQBNYVQ5UYWIMSLH3AG

not attested not anchored not stored refs pending

Multiclass Spinal Cord Tumor Segmentation on MRI with Deep Learning

Andreanne Lemay, Charley Gros, Jie Zhang, Julien Cohen-Adad, Yaou Liu, Yunyun Duan, Zhizheng Zhuo

arxiv:2012.12820 v4 · 2020-12-23 · eess.IV · 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{PDMUV4PNQBNYVQ5UYWIMSLH3AG}

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	2026-07-05T02:27:35.392775Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

78d94af1ed805b8ac3b4c590c92cfb01a5753b827da5ca5237dc9d81b12aa546

Aliases

arxiv: 2012.12820 · arxiv_version: 2012.12820v4 · doi: 10.48550/arxiv.2012.12820 · pith_short_12: PDMUV4PNQBNY · pith_short_16: PDMUV4PNQBNYVQ5U · pith_short_8: PDMUV4PN

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/PDMUV4PNQBNYVQ5UYWIMSLH3AG \
  | 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: 78d94af1ed805b8ac3b4c590c92cfb01a5753b827da5ca5237dc9d81b12aa546

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "975b2486c00d71ea92ef7fe27bcb7e17c99dc884362fbb8ca537089cf07a537d",
    "cross_cats_sorted": [
      "cs.CV",
      "cs.LG"
    ],
    "license": "http://creativecommons.org/licenses/by/4.0/",
    "primary_cat": "eess.IV",
    "submitted_at": "2020-12-23T17:31:08Z",
    "title_canon_sha256": "533d76c80fbfb09a6630da1e2eb5bf1772237dd9b38997ec3e25d573dd2b7716"
  },
  "schema_version": "1.0",
  "source": {
    "id": "2012.12820",
    "kind": "arxiv",
    "version": 4
  }
}