Pith Number

pith:RFXKT6PX

pith:2018:RFXKT6PXR7CZRQE3OX6WKSI2ZC

not attested not anchored not stored refs pending

Entangling power of two-qubit unitary operations

Lin Chen, Yi Shen

arxiv:1804.01222 v2 · 2018-04-04 · quant-ph · math-ph · math.MP

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

Add to your LaTeX paper

\usepackage{pith}
\pithnumber{RFXKT6PXR7CZRQE3OX6WKSI2ZC}

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	2026-05-18T00:04:59.047671Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

896ea9f9f78fc598c09b75fd65491ac8b793b79e5ab54f21f3344d2189f52cb6

Aliases

arxiv: 1804.01222 · arxiv_version: 1804.01222v2 · doi: 10.48550/arxiv.1804.01222 · pith_short_12: RFXKT6PXR7CZ · pith_short_16: RFXKT6PXR7CZRQE3 · pith_short_8: RFXKT6PX

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/RFXKT6PXR7CZRQE3OX6WKSI2ZC \
  | 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: 896ea9f9f78fc598c09b75fd65491ac8b793b79e5ab54f21f3344d2189f52cb6

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "4fdce5a743348cd807a4e6ed040f830ba9626a0cf130f3a55ab68fe67eff35ae",
    "cross_cats_sorted": [
      "math-ph",
      "math.MP"
    ],
    "license": "http://arxiv.org/licenses/nonexclusive-distrib/1.0/",
    "primary_cat": "quant-ph",
    "submitted_at": "2018-04-04T03:03:07Z",
    "title_canon_sha256": "a17df478e5669a50e6e65d21e8f3c81fb7a955a92882609a913980c0089d92d8"
  },
  "schema_version": "1.0",
  "source": {
    "id": "1804.01222",
    "kind": "arxiv",
    "version": 2
  }
}