Pith Number

pith:64A6ZC76

pith:2015:64A6ZC76BCO2Z32OPCTRZ5ZBO5

not attested not anchored not stored refs pending

Modified Newton-Raphson GRAPE methods for optimal control of spin systems

D.L. Goodwin, Ilya Kuprov

arxiv:1510.02420 v5 · 2015-10-08 · quant-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{64A6ZC76BCO2Z32OPCTRZ5ZBO5}

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	2026-05-18T01:10:33.156956Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

f701ec8bfe089dacef4e78a71cf7217762c056799ff753ceaac9f85a08195d96

Aliases

arxiv: 1510.02420 · arxiv_version: 1510.02420v5 · doi: 10.48550/arxiv.1510.02420 · pith_short_12: 64A6ZC76BCO2 · pith_short_16: 64A6ZC76BCO2Z32O · pith_short_8: 64A6ZC76

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/64A6ZC76BCO2Z32OPCTRZ5ZBO5 \
  | 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: f701ec8bfe089dacef4e78a71cf7217762c056799ff753ceaac9f85a08195d96

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "2b0ba4a75fbaed822b88ff6a3945e80252fc9983b292a68be74dbe2bf639072d",
    "cross_cats_sorted": [],
    "license": "http://arxiv.org/licenses/nonexclusive-distrib/1.0/",
    "primary_cat": "quant-ph",
    "submitted_at": "2015-10-08T17:48:25Z",
    "title_canon_sha256": "1f9086d0d149fea178f986cab1792b3b56a92821984f576b99f11241076cb66c"
  },
  "schema_version": "1.0",
  "source": {
    "id": "1510.02420",
    "kind": "arxiv",
    "version": 5
  }
}