Pith Number

pith:VPPR3FXB

pith:2020:VPPR3FXBWQBT2VBRCUEY2NBJFS

not attested not anchored not stored refs pending

VSQL: Variational Shadow Quantum Learning for Classification

Guangxi Li, Xin Wang, Zhixin Song

arxiv:2012.08288 v1 · 2020-12-15 · quant-ph · cond-mat.dis-nn · cs.AI · cs.LG

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

Add to your LaTeX paper

\usepackage{pith}
\pithnumber{VPPR3FXBWQBT2VBRCUEY2NBJFS}

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	2026-07-05T01:59:42.059633Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

abdf1d96e1b4033d543115098d34292c99f50ed370792a6fb5df4a6ba83f965d

Aliases

arxiv: 2012.08288 · arxiv_version: 2012.08288v1 · doi: 10.48550/arxiv.2012.08288 · pith_short_12: VPPR3FXBWQBT · pith_short_16: VPPR3FXBWQBT2VBR · pith_short_8: VPPR3FXB

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/VPPR3FXBWQBT2VBRCUEY2NBJFS \
  | 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: abdf1d96e1b4033d543115098d34292c99f50ed370792a6fb5df4a6ba83f965d

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "0f568f65a42e3e1c1c5beb2b66a1731f6a577f19c5c6f4d13d06f692e8dc54a1",
    "cross_cats_sorted": [
      "cond-mat.dis-nn",
      "cs.AI",
      "cs.LG"
    ],
    "license": "http://creativecommons.org/licenses/by/4.0/",
    "primary_cat": "quant-ph",
    "submitted_at": "2020-12-15T13:51:01Z",
    "title_canon_sha256": "810f9c513bf2a727b6fc414b4821f7aa5c952e5c5befac000679a684fc03613e"
  },
  "schema_version": "1.0",
  "source": {
    "id": "2012.08288",
    "kind": "arxiv",
    "version": 1
  }
}