Pith Number

pith:VXR76ATU

pith:2021:VXR76ATUQWMVEUFLVZRMEWKQFC

not attested not anchored not stored refs pending

Task-based assessment of binned and list-mode SPECT systems

Abhinav K. Jha, Md Ashequr Rahman

arxiv:2102.03971 v2 · 2021-02-08 · 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{VXR76ATUQWMVEUFLVZRMEWKQFC}

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	2026-07-05T02:14:33.485653Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

ade3ff027485995250abae62c2595028975ad1d4a84a2a9e4099b088ddba4193

Aliases

arxiv: 2102.03971 · arxiv_version: 2102.03971v2 · doi: 10.48550/arxiv.2102.03971 · pith_short_12: VXR76ATUQWMV · pith_short_16: VXR76ATUQWMVEUFL · pith_short_8: VXR76ATU

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/VXR76ATUQWMVEUFLVZRMEWKQFC \
  | 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: ade3ff027485995250abae62c2595028975ad1d4a84a2a9e4099b088ddba4193

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "b9ba59f4d87549121d32ac3b5b1931737a7e4a56fb6cff1d3c658c26d2e12723",
    "cross_cats_sorted": [
      "eess.IV"
    ],
    "license": "http://arxiv.org/licenses/nonexclusive-distrib/1.0/",
    "primary_cat": "physics.med-ph",
    "submitted_at": "2021-02-08T02:49:56Z",
    "title_canon_sha256": "21a37b86168ccb58ccf77ae5a8a78f1ba63eb5551ceb3bff85ee56355a83dd62"
  },
  "schema_version": "1.0",
  "source": {
    "id": "2102.03971",
    "kind": "arxiv",
    "version": 2
  }
}