Pith Number

pith:EI47P5ST

pith:2012:EI47P5STIPRZLGEFJ3PZTQQIQK

not attested not anchored not stored refs pending

Geometric optimal control of the contrast imaging problem in Nuclear Magnetic Resonance

B. Bonnard, D. Sugny, M. Lapert, O. Cots, S. J. Glaser, Y. Zhang

arxiv:1208.2794 v1 · 2012-08-14 · quant-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{EI47P5STIPRZLGEFJ3PZTQQIQK}

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	2026-05-18T00:59:04.864697Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

2239f7f65343e39598854edf99c20882acd6a750677d308d6dbebaa1024fd104

Aliases

arxiv: 1208.2794 · arxiv_version: 1208.2794v1 · doi: 10.48550/arxiv.1208.2794 · pith_short_12: EI47P5STIPRZ · pith_short_16: EI47P5STIPRZLGEF · pith_short_8: EI47P5ST

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/EI47P5STIPRZLGEFJ3PZTQQIQK \
  | 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: 2239f7f65343e39598854edf99c20882acd6a750677d308d6dbebaa1024fd104

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "66621d90b4d45273d173f170338a56a77580a78d30d429a492eb0ef8996a7056",
    "cross_cats_sorted": [
      "physics.med-ph"
    ],
    "license": "http://arxiv.org/licenses/nonexclusive-distrib/1.0/",
    "primary_cat": "quant-ph",
    "submitted_at": "2012-08-14T07:18:33Z",
    "title_canon_sha256": "168f63b33908ef3e6e09c3d2867b8ba5eeaa48775181ec1283448bcfebbb70ad"
  },
  "schema_version": "1.0",
  "source": {
    "id": "1208.2794",
    "kind": "arxiv",
    "version": 1
  }
}