Pith Number

pith:ZPQTZKK4

pith:2019:ZPQTZKK4OK7TL6NZJ2JRZPMIC4

not attested not anchored not stored refs pending

Variational Quantum Unsampling on a Quantum Photonic Processor

Changchen Chen, Darius Bunandar, Dirk Englund, Franco N. C. Wong, Jacques Carolan, Jonathan P. Olson, Masoud Mohseni, Michael Hochberg, Mihika Prabhu, Nicholas C. Harris, Seth Lloyd

arxiv:1904.10463 v2 · 2019-04-23 · 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{ZPQTZKK4OK7TL6NZJ2JRZPMIC4}

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.

Cited by

1 paper in Pith

The Capacity of Quantum Neural Networks

Receipt and verification

First computed	2026-07-05T03:08:17.960874Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

cbe13ca95c72bf35f9b94e931cbd88172f10eebaef2fc09590f4bec2a393b7d1

Aliases

arxiv: 1904.10463 · arxiv_version: 1904.10463v2 · doi: 10.48550/arxiv.1904.10463 · pith_short_12: ZPQTZKK4OK7T · pith_short_16: ZPQTZKK4OK7TL6NZ · pith_short_8: ZPQTZKK4

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/ZPQTZKK4OK7TL6NZJ2JRZPMIC4 \
  | 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: cbe13ca95c72bf35f9b94e931cbd88172f10eebaef2fc09590f4bec2a393b7d1

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "725a7690f919477337a2f74eb2fa70b447f9610a0dc09e8fff3fcc8859ce5ab9",
    "cross_cats_sorted": [],
    "license": "http://arxiv.org/licenses/nonexclusive-distrib/1.0/",
    "primary_cat": "quant-ph",
    "submitted_at": "2019-04-23T18:00:01Z",
    "title_canon_sha256": "54bedf3360f22143ca0560a3d229ef1f59f2b518396b8e65bedadbc0cd66f3de"
  },
  "schema_version": "1.0",
  "source": {
    "id": "1904.10463",
    "kind": "arxiv",
    "version": 2
  }
}