Pith Number

pith:QM4XZA3G

pith:2018:QM4XZA3GOUDNDNOGCYZNGDRMFH

not attested not anchored not stored refs pending

Practical Pulse Engineering: Gradient Ascent Without Matrix Exponentiation

Gaurav Bhole, Jonathan A. Jones

arxiv:1802.07147 v2 · 2018-02-20 · 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{QM4XZA3GOUDNDNOGCYZNGDRMFH}

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	2026-05-18T00:17:38.685867Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

83397c83667506d1b5c61632d30e2c29e769bcbcf528e84f60840fc72737b431

Aliases

arxiv: 1802.07147 · arxiv_version: 1802.07147v2 · doi: 10.48550/arxiv.1802.07147 · pith_short_12: QM4XZA3GOUDN · pith_short_16: QM4XZA3GOUDNDNOG · pith_short_8: QM4XZA3G

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/QM4XZA3GOUDNDNOGCYZNGDRMFH \
  | 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: 83397c83667506d1b5c61632d30e2c29e769bcbcf528e84f60840fc72737b431

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "fc38d8a792b74b7cdcb511c503e21c8f8a3f7da75e521c070cbd1ea832e1d171",
    "cross_cats_sorted": [],
    "license": "http://arxiv.org/licenses/nonexclusive-distrib/1.0/",
    "primary_cat": "quant-ph",
    "submitted_at": "2018-02-20T15:19:43Z",
    "title_canon_sha256": "0fe6e9f24e3baa2b59842282b261384be45e7aff95270021407db67ca94c1645"
  },
  "schema_version": "1.0",
  "source": {
    "id": "1802.07147",
    "kind": "arxiv",
    "version": 2
  }
}