Pith Number

pith:637JBORK

pith:2023:637JBORKI2J27WUBYCLB4M3MEP

not attested not anchored not stored refs pending

A real world test of Portfolio Optimization with Quantum Annealing

Branislav Roman, Johannes M. Oberreuter, J\"urgen Schiefer, Luca Asproni, Riccardo Aiolfi, Wolfgang Sakuler

arxiv:2303.12601 v1 · 2023-03-22 · 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{637JBORKI2J27WUBYCLB4M3MEP}

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	2026-07-05T05:53:43.227197Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

f6fe90ba2a4693afda81c0961e336c23d9532d08848c7ff2d9391b9217e88c7a

Aliases

arxiv: 2303.12601 · arxiv_version: 2303.12601v1 · doi: 10.48550/arxiv.2303.12601 · pith_short_12: 637JBORKI2J2 · pith_short_16: 637JBORKI2J27WUB · pith_short_8: 637JBORK

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/637JBORKI2J27WUBYCLB4M3MEP \
  | 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: f6fe90ba2a4693afda81c0961e336c23d9532d08848c7ff2d9391b9217e88c7a

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "fd84c1f249a5228339ff692707bed7f8b1ac1e3918016e580595da00b55290d3",
    "cross_cats_sorted": [],
    "license": "http://arxiv.org/licenses/nonexclusive-distrib/1.0/",
    "primary_cat": "quant-ph",
    "submitted_at": "2023-03-22T14:38:13Z",
    "title_canon_sha256": "dd11fe2295de4dca7bceab5e4f70d08f43556401e52b643058795c0eb2c7053a"
  },
  "schema_version": "1.0",
  "source": {
    "id": "2303.12601",
    "kind": "arxiv",
    "version": 1
  }
}