Pith Number

pith:V6RXL4W3

pith:2017:V6RXL4W3IMIV4OCXI2BMBTXMGY

not attested not anchored not stored refs pending

Fast quantitative MRI as a nonlinear tomography problem

Alessandro Sbrizzi, Annette van der Toorn, Cornelis A. T. van den Berg, Hans Hoogduin, Martijn Cloos, Oscar van der Heide, Peter R. Luijten

arxiv:1705.03209 v2 · 2017-05-09 · physics.app-ph · physics.med-ph

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

Add to your LaTeX paper

\usepackage{pith}
\pithnumber{V6RXL4W3IMIV4OCXI2BMBTXMGY}

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	2026-05-18T00:30:22.191267Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

afa375f2db43115e38574682c0ceec36053273cd6fb7ad61164d5301a1dae956

Aliases

arxiv: 1705.03209 · arxiv_version: 1705.03209v2 · doi: 10.48550/arxiv.1705.03209 · pith_short_12: V6RXL4W3IMIV · pith_short_16: V6RXL4W3IMIV4OCX · pith_short_8: V6RXL4W3

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/V6RXL4W3IMIV4OCXI2BMBTXMGY \
  | 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: afa375f2db43115e38574682c0ceec36053273cd6fb7ad61164d5301a1dae956

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "8e103cf02e9ebfc46b4c434c5ca54fb4b11609f584cd847eca0c6709b35741fa",
    "cross_cats_sorted": [
      "physics.med-ph"
    ],
    "license": "http://arxiv.org/licenses/nonexclusive-distrib/1.0/",
    "primary_cat": "physics.app-ph",
    "submitted_at": "2017-05-09T07:16:11Z",
    "title_canon_sha256": "026b0d4ba8152e0cf2717037a00ffcf8a4495b6554c1db4f59c2e0cd29290932"
  },
  "schema_version": "1.0",
  "source": {
    "id": "1705.03209",
    "kind": "arxiv",
    "version": 2
  }
}