Pith Number

pith:VJ2G6KLT

pith:2022:VJ2G6KLTINGVOZIKWPEU3NHBZB

not attested not anchored not stored refs pending

Limitations of variational quantum algorithms: a quantum optimal transport approach

Cambyse Rouz\'e, Daniel Stilck Fran\c{c}a, Giacomo De Palma, Milad Marvian

arxiv:2204.03455 v3 · 2022-04-07 · 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{VJ2G6KLTINGVOZIKWPEU3NHBZB}

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	2026-07-05T05:43:10.659631Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

aa746f2973434d57650ab3c94db4e1c865d916184abd9a509ba4624106b0836e

Aliases

arxiv: 2204.03455 · arxiv_version: 2204.03455v3 · doi: 10.48550/arxiv.2204.03455 · pith_short_12: VJ2G6KLTINGV · pith_short_16: VJ2G6KLTINGVOZIK · pith_short_8: VJ2G6KLT

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/VJ2G6KLTINGVOZIKWPEU3NHBZB \
  | 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: aa746f2973434d57650ab3c94db4e1c865d916184abd9a509ba4624106b0836e

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "d910bc71e2752767b392b0896dbd36c4186e99b0338d41631f4bbc520a0598e0",
    "cross_cats_sorted": [],
    "license": "http://arxiv.org/licenses/nonexclusive-distrib/1.0/",
    "primary_cat": "quant-ph",
    "submitted_at": "2022-04-07T13:58:44Z",
    "title_canon_sha256": "a5dbe917dcc4750995dc9900b84fc51c1ddff16a782a8a4b672269d2ca151a62"
  },
  "schema_version": "1.0",
  "source": {
    "id": "2204.03455",
    "kind": "arxiv",
    "version": 3
  }
}