Pith Number

pith:AQN2YE67

pith:2015:AQN2YE6775VBQURMRRSF5UVGA7

not attested not anchored not stored refs pending

Effective Hamiltonian for two interacting double-dot exchange-only qubits and their controlled-NOT operations

E. Ferraro, E. Prati, M. De Michielis, M. Fanciulli

arxiv:1501.05833 v1 · 2015-01-23 · 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{AQN2YE6775VBQURMRRSF5UVGA7}

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	2026-05-18T00:06:44.187956Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

041bac13dfff6a18522c8c645ed2a607c1452c343133f623852a1f2f69cc4af2

Aliases

arxiv: 1501.05833 · arxiv_version: 1501.05833v1 · doi: 10.48550/arxiv.1501.05833 · pith_short_12: AQN2YE6775VB · pith_short_16: AQN2YE6775VBQURM · pith_short_8: AQN2YE67

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/AQN2YE6775VBQURMRRSF5UVGA7 \
  | 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: 041bac13dfff6a18522c8c645ed2a607c1452c343133f623852a1f2f69cc4af2

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "f4160ba767cc3e9cbf255ad54cfb39f21294522387b02e675c4f7d9011d7a171",
    "cross_cats_sorted": [],
    "license": "http://arxiv.org/licenses/nonexclusive-distrib/1.0/",
    "primary_cat": "quant-ph",
    "submitted_at": "2015-01-23T15:35:16Z",
    "title_canon_sha256": "e65e6a8abcee98fb0ee02c95e5edae5a9e9a5e803a991c0672bf635751bdda00"
  },
  "schema_version": "1.0",
  "source": {
    "id": "1501.05833",
    "kind": "arxiv",
    "version": 1
  }
}