Pith Number

pith:TEH7DEMW

pith:2002:TEH7DEMWFCV4FSIIEDFNWYKGEC

not attested not anchored not stored refs pending

"Spectral Implementation" for creating a labeled pseudo-pure state and the Bernstein-Vazirani's algorithm in a four-qubit nuclear magnetic resonance quantum processor

Kelin Gao, Maili Liu, Mang Feng, Ximing Fang, Xinhua Peng, Xiwen Zhu

arxiv:quant-ph/0202008 v4 · 2002-02-01 · 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{TEH7DEMWFCV4FSIIEDFNWYKGEC}

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	2026-07-04T16:35:59.223224Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

990ff1919628abc2c90820cadb61462097d09d5bde3a64da58ca96810d6c46f1

Aliases

arxiv: quant-ph/0202008 · arxiv_version: quant-ph/0202008v4 · doi: 10.48550/arxiv.quant-ph/0202008 · pith_short_12: TEH7DEMWFCV4 · pith_short_16: TEH7DEMWFCV4FSII · pith_short_8: TEH7DEMW

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/TEH7DEMWFCV4FSIIEDFNWYKGEC \
  | 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: 990ff1919628abc2c90820cadb61462097d09d5bde3a64da58ca96810d6c46f1

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "0addf35413fbdce56a7c98556876308805e6cfda681ae3ba9ee166cf8c2fc120",
    "cross_cats_sorted": [],
    "license": "",
    "primary_cat": "quant-ph",
    "submitted_at": "2002-02-01T13:07:16Z",
    "title_canon_sha256": "b7f07cb7dca1fda91f1b1c2cc8cd4078983f600950808cad9b9547d5d466d9c7"
  },
  "schema_version": "1.0",
  "source": {
    "id": "quant-ph/0202008",
    "kind": "arxiv",
    "version": 4
  }
}