Pith Number

pith:XH2IA2C7

pith:2021:XH2IA2C7P53SWGVXCBECM734HX

not attested not anchored not stored refs pending

A tissue-fraction estimation-based segmentation method for quantitative dopamine transporter SPECT

Abhinav K. Jha, Hae Sol Moon, Joel S. Perlmutter, Richard Laforest, Scott A. Norris, Zekun Li, Ziping Liu

arxiv:2101.06729 v3 · 2021-01-17 · physics.med-ph · eess.IV

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

Add to your LaTeX paper

\usepackage{pith}
\pithnumber{XH2IA2C7P53SWGVXCBECM734HX}

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	2026-07-05T05:05:25.106079Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

b9f480685f7f772b1ab71048267f7c3dfbada7e2d7fdd3a4c7181f29cc6da625

Aliases

arxiv: 2101.06729 · arxiv_version: 2101.06729v3 · doi: 10.48550/arxiv.2101.06729 · pith_short_12: XH2IA2C7P53S · pith_short_16: XH2IA2C7P53SWGVX · pith_short_8: XH2IA2C7

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/XH2IA2C7P53SWGVXCBECM734HX \
  | 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: b9f480685f7f772b1ab71048267f7c3dfbada7e2d7fdd3a4c7181f29cc6da625

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "445eae36389b4a958d125e138175cf1678e6e65fedf026b369a5361e321d46ce",
    "cross_cats_sorted": [
      "eess.IV"
    ],
    "license": "http://arxiv.org/licenses/nonexclusive-distrib/1.0/",
    "primary_cat": "physics.med-ph",
    "submitted_at": "2021-01-17T17:51:13Z",
    "title_canon_sha256": "8715eaeda6f7893784ac91edc4a2cb42d7a1e4a5413d6039c6db94fa577134ef"
  },
  "schema_version": "1.0",
  "source": {
    "id": "2101.06729",
    "kind": "arxiv",
    "version": 3
  }
}