Pith Number

pith:NBUG2OPM

pith:2016:NBUG2OPMPEAFKFK7BX2QJJ4G7L

not attested not anchored not stored refs pending

Speedup for quantum optimal control from automatic differentiation based on graphics processing units

David I. Schuster, Jens Koch, Mohamed Abdelhafez, Nelson Leung

arxiv:1612.04929 v3 · 2016-12-15 · quant-ph · cond-mat.mes-hall

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

Add to your LaTeX paper

\usepackage{pith}
\pithnumber{NBUG2OPMPEAFKFK7BX2QJJ4G7L}

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	2026-05-18T00:46:13.481031Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

68686d39ec790055155f0df504a786faec24c5adbc98fd36927c8ede1c8f5394

Aliases

arxiv: 1612.04929 · arxiv_version: 1612.04929v3 · doi: 10.48550/arxiv.1612.04929 · pith_short_12: NBUG2OPMPEAF · pith_short_16: NBUG2OPMPEAFKFK7 · pith_short_8: NBUG2OPM

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/NBUG2OPMPEAFKFK7BX2QJJ4G7L \
  | 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: 68686d39ec790055155f0df504a786faec24c5adbc98fd36927c8ede1c8f5394

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "89c8175ea55d372db550656f1552a691fb381653cf60229db9972f157d6b1da4",
    "cross_cats_sorted": [
      "cond-mat.mes-hall"
    ],
    "license": "http://arxiv.org/licenses/nonexclusive-distrib/1.0/",
    "primary_cat": "quant-ph",
    "submitted_at": "2016-12-15T05:15:45Z",
    "title_canon_sha256": "49db5a81122f657f721bba86df477d13d5b2658f3a28d75e0263600f65eb66e6"
  },
  "schema_version": "1.0",
  "source": {
    "id": "1612.04929",
    "kind": "arxiv",
    "version": 3
  }
}