Pith Number

pith:NENGTRBY

pith:2019:NENGTRBYXOX2AVEDCAFUY34KFG

not attested not anchored not stored refs pending

Classical versus Quantum Models in Machine Learning: Insights from a Finance Application

Alejandro Perdomo-Ortiz, Javier Alcazar, Vicente Leyton-Ortega

arxiv:1908.10778 v2 · 2019-08-28 · 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{NENGTRBYXOX2AVEDCAFUY34KFG}

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	2026-07-05T00:32:13.520281Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

691a69c438bbafa05483100b4c6f8a299cf318994b8b1d8a9f3805fa9b3b2893

Aliases

arxiv: 1908.10778 · arxiv_version: 1908.10778v2 · doi: 10.48550/arxiv.1908.10778 · pith_short_12: NENGTRBYXOX2 · pith_short_16: NENGTRBYXOX2AVED · pith_short_8: NENGTRBY

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/NENGTRBYXOX2AVEDCAFUY34KFG \
  | 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: 691a69c438bbafa05483100b4c6f8a299cf318994b8b1d8a9f3805fa9b3b2893

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "d3609b6fb18a3b8a1680cc0d6b6a0e04800a5e2596fb626a41386e65ed952da6",
    "cross_cats_sorted": [],
    "license": "http://arxiv.org/licenses/nonexclusive-distrib/1.0/",
    "primary_cat": "quant-ph",
    "submitted_at": "2019-08-28T15:27:45Z",
    "title_canon_sha256": "a0b58a0bbe69ca87eb39f1eaf6eabdc0e107ec6ffb0722a2daa1e80526aba0e1"
  },
  "schema_version": "1.0",
  "source": {
    "id": "1908.10778",
    "kind": "arxiv",
    "version": 2
  }
}