Pith Number

pith:7REPA5A2

pith:2023:7REPA5A2LU37SSAZWGVBIAX24L

not attested not anchored not stored refs pending

Current Methods for Hyperpolarized [1-13C]pyruvate MRI Human Studies

Albert P. Chen, Charles H Cunningham, Christoffer Laustsen, Cornelius von Morze, Daniel B Vigneron, Dirk Mayer, Duan Xu, Franz Schilling, James A Bankson, James Slater, Jan-Bernd H\"ovener, Jean-Luc Vanderheyden, Jenna ML Bernard, Jeremy Gordon, Mary A McLean, Nikolaj B{\o}gh, Peder EZ Larson, Robert A Bok, the HP 13C MRI Consensus Group

arxiv:2309.04040 v2 · 2023-09-07 · 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{7REPA5A2LU37SSAZWGVBIAX24L}

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	2026-07-05T07:15:59.744787Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

fc48f0741a5d37f94819b1aa1402fae2ef19414d8d4312e4453a87ef61970209

Aliases

arxiv: 2309.04040 · arxiv_version: 2309.04040v2 · doi: 10.48550/arxiv.2309.04040 · pith_short_12: 7REPA5A2LU37 · pith_short_16: 7REPA5A2LU37SSAZ · pith_short_8: 7REPA5A2

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/7REPA5A2LU37SSAZWGVBIAX24L \
  | 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: fc48f0741a5d37f94819b1aa1402fae2ef19414d8d4312e4453a87ef61970209

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "5897d2f791578bf056bb010300d9c7ea30f9d427cf22c425a03e9e312d87617a",
    "cross_cats_sorted": [],
    "license": "http://creativecommons.org/licenses/by/4.0/",
    "primary_cat": "physics.med-ph",
    "submitted_at": "2023-09-07T22:40:00Z",
    "title_canon_sha256": "47ebc7e31f040b0e11f7ac34759e5a08d97f8d776d7d8dac9c57484230f68087"
  },
  "schema_version": "1.0",
  "source": {
    "id": "2309.04040",
    "kind": "arxiv",
    "version": 2
  }
}