Pith Number

pith:SRFQNM5Z

pith:2022:SRFQNM5ZHDR5QF73RMA3IF6FCM

not attested not anchored not stored refs pending

A two-qubit entangling gate based on a two-spin gadget

Rui Yang

arxiv:2201.07218 v1 · 2022-01-15 · quant-ph · physics.comp-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{SRFQNM5ZHDR5QF73RMA3IF6FCM}

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	2026-07-05T03:49:44.478326Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

944b06b3b938e3d817fb8b01b417c51325d7d4119e296c5a80c35a9dda0b8785

Aliases

arxiv: 2201.07218 · arxiv_version: 2201.07218v1 · doi: 10.48550/arxiv.2201.07218 · pith_short_12: SRFQNM5ZHDR5 · pith_short_16: SRFQNM5ZHDR5QF73 · pith_short_8: SRFQNM5Z

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/SRFQNM5ZHDR5QF73RMA3IF6FCM \
  | 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: 944b06b3b938e3d817fb8b01b417c51325d7d4119e296c5a80c35a9dda0b8785

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "83a802e461266ac35d18ac8ff9366d1934563d3cf67ae715113a4739e7b6e8ee",
    "cross_cats_sorted": [
      "physics.comp-ph"
    ],
    "license": "http://arxiv.org/licenses/nonexclusive-distrib/1.0/",
    "primary_cat": "quant-ph",
    "submitted_at": "2022-01-15T18:15:00Z",
    "title_canon_sha256": "b40b6b72dec15fce0ba84c1f5e50bcea62b828195519b9ed9356ed04ee63ac8b"
  },
  "schema_version": "1.0",
  "source": {
    "id": "2201.07218",
    "kind": "arxiv",
    "version": 1
  }
}