Pith Number

pith:BDU2OQI7

pith:2018:BDU2OQI7KRNTP4JW2Y3KM37ZLG

not attested not anchored not stored refs pending

The Optimality Principle for MR signal excitation and reception: New physical insights into ideal radiofrequency coil design

Christopher M. Collins, Daniel K. Sodickson, Dmitry S. Novikov, Gang Chen, Graham C. Wiggins, Manushka Vaidya, Riccardo Lattanzi

arxiv:1808.02087 v1 · 2018-08-06 · physics.ins-det · 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{BDU2OQI7KRNTP4JW2Y3KM37ZLG}

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	2026-05-18T00:08:47.649283Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

08e9a7411f545b37f136d636a66ff9598924d6b34b3bb239018ebf96270e13c5

Aliases

arxiv: 1808.02087 · arxiv_version: 1808.02087v1 · doi: 10.48550/arxiv.1808.02087 · pith_short_12: BDU2OQI7KRNT · pith_short_16: BDU2OQI7KRNTP4JW · pith_short_8: BDU2OQI7

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/BDU2OQI7KRNTP4JW2Y3KM37ZLG \
  | 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: 08e9a7411f545b37f136d636a66ff9598924d6b34b3bb239018ebf96270e13c5

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "cc412bb7de2c2e842fa0d7b917098c3113a8356cc0506a5e9978b1cd1adab999",
    "cross_cats_sorted": [
      "physics.med-ph"
    ],
    "license": "http://arxiv.org/licenses/nonexclusive-distrib/1.0/",
    "primary_cat": "physics.ins-det",
    "submitted_at": "2018-08-06T19:49:05Z",
    "title_canon_sha256": "cfe05402593bed2cbd31647b093f251e4c2088c9d14178752ff2a7043b52525c"
  },
  "schema_version": "1.0",
  "source": {
    "id": "1808.02087",
    "kind": "arxiv",
    "version": 1
  }
}