Pith Number

pith:3MPUFCG2

pith:2021:3MPUFCG2OUOMVLSCF624DYK7S5

not attested not anchored not stored refs pending

Quantum Dimensionality Reduction by Linear Discriminant Analysis

Gong-De Guo, Kai Yu, Song Lin

arxiv:2103.03131 v1 · 2021-03-04 · 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{3MPUFCG2OUOMVLSCF624DYK7S5}

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	2026-07-05T05:56:36.943158Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

db1f4288da751ccaae422fb5c1e15f9747004d8c753e931f0009cfd768783c8a

Aliases

arxiv: 2103.03131 · arxiv_version: 2103.03131v1 · doi: 10.48550/arxiv.2103.03131 · pith_short_12: 3MPUFCG2OUOM · pith_short_16: 3MPUFCG2OUOMVLSC · pith_short_8: 3MPUFCG2

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/3MPUFCG2OUOMVLSCF624DYK7S5 \
  | 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: db1f4288da751ccaae422fb5c1e15f9747004d8c753e931f0009cfd768783c8a

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "f23e6235044e0b84d0f208f23c8578a8e2479cf36f4477343fd87f70d8d01fda",
    "cross_cats_sorted": [],
    "license": "http://arxiv.org/licenses/nonexclusive-distrib/1.0/",
    "primary_cat": "quant-ph",
    "submitted_at": "2021-03-04T16:06:30Z",
    "title_canon_sha256": "b52cb1e7a46aa6bfb6a9ce58f22ae9f58a1723b0703f9641e41c6209d6ba478a"
  },
  "schema_version": "1.0",
  "source": {
    "id": "2103.03131",
    "kind": "arxiv",
    "version": 1
  }
}