Pith Number

pith:IW3R4TDD

pith:2015:IW3R4TDDPOWLEYJQQOXWSQGEEK

not attested not anchored not stored refs pending

Obtaining A Linear Combination of the Principal Components of a Matrix on Quantum Computers

Anmer Daskin

arxiv:1512.02109 v3 · 2015-11-26 · quant-ph · cs.LG · math.ST · stat.TH

Open paper page JSON Open Graph Bundle Merged state Verified badge What is a Pith Number?

Add to your LaTeX paper

\usepackage{pith}
\pithnumber{IW3R4TDDPOWLEYJQQOXWSQGEEK}

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	2026-05-18T00:59:58.907489Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

45b71e4c637bacb2613083af6940c422b7528630f9ff34e86541eabb89834931

Aliases

arxiv: 1512.02109 · arxiv_version: 1512.02109v3 · doi: 10.48550/arxiv.1512.02109 · pith_short_12: IW3R4TDDPOWL · pith_short_16: IW3R4TDDPOWLEYJQ · pith_short_8: IW3R4TDD

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/IW3R4TDDPOWLEYJQQOXWSQGEEK \
  | 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: 45b71e4c637bacb2613083af6940c422b7528630f9ff34e86541eabb89834931

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "af8635f529105d9f25df4ad6dc6c00b185867ab1aa4c2cb6ef7115764aef3fb6",
    "cross_cats_sorted": [
      "cs.LG",
      "math.ST",
      "stat.TH"
    ],
    "license": "http://arxiv.org/licenses/nonexclusive-distrib/1.0/",
    "primary_cat": "quant-ph",
    "submitted_at": "2015-11-26T14:31:12Z",
    "title_canon_sha256": "18449650c9021158b02d7dcb76ae6b9e0cdbd3d53a8232e23fb5a5e739fb8fdf"
  },
  "schema_version": "1.0",
  "source": {
    "id": "1512.02109",
    "kind": "arxiv",
    "version": 3
  }
}