Pith Number

pith:2Z4C65U4

pith:2025:2Z4C65U466MCZD4G2FJYXIE5CU

not attested not anchored not stored refs pending

Refined Quantum Algorithms for Principal Component Analysis and Solving Linear System

Nhat A. Nghiem

arxiv:2504.00833 v1 · 2025-04-01 · 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{2Z4C65U466MCZD4G2FJYXIE5CU}

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

2 papers in Pith

New aspects of quantum topological data analysis: Betti number estimation, and testing and tracking of homology and cohomology classes

Hybrid quantum-classical framework for Betti number estimation with applications to topological data analysis

Receipt and verification

First computed	2026-07-05T10:42:51.154639Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

d6782f769cf7982c8f86d1538ba09d1518937bdfe5b0e3c8fa51ad4e15979c1d

Aliases

arxiv: 2504.00833 · arxiv_version: 2504.00833v1 · doi: 10.48550/arxiv.2504.00833 · pith_short_12: 2Z4C65U466MC · pith_short_16: 2Z4C65U466MCZD4G · pith_short_8: 2Z4C65U4

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/2Z4C65U466MCZD4G2FJYXIE5CU \
  | 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: d6782f769cf7982c8f86d1538ba09d1518937bdfe5b0e3c8fa51ad4e15979c1d

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "c966148e95918dddf5b73c0cc37b70d55f4354398297b3257e4b445778310973",
    "cross_cats_sorted": [],
    "license": "http://creativecommons.org/licenses/by/4.0/",
    "primary_cat": "quant-ph",
    "submitted_at": "2025-04-01T14:23:54Z",
    "title_canon_sha256": "317abd6c55bd14b6108873cb6cb2125b1b69d736d9d5d83f2a43875ff8d122b9"
  },
  "schema_version": "1.0",
  "source": {
    "id": "2504.00833",
    "kind": "arxiv",
    "version": 1
  }
}