Pith Number

pith:XMGZ75XT

pith:2026:XMGZ75XT67ZHAR5A2QCESJX2AA

not attested not anchored not stored refs pending

Low-energy spectrum of double-junction superconducting circuits in the Born-Oppenheimer approximation

David Feldstein-Bofill, Karsten Flensberg, Ksenia Shagalov, Leo Uhre Jakobsen, Morten Kjaergaard, Svend Kr{\o}jer

arxiv:2603.26374 v2 · 2026-03-27 · 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{XMGZ75XT67ZHAR5A2QCESJX2AA}

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.

Cited by

1 paper in Pith

Coherence limitations of a Fourier-engineered $\cos(2\varphi)$ transmon qubit

Receipt and verification

First computed	2026-07-14T01:20:57.598965Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

bb0d9ff6f3f7f27047a0d4044926fa00210ab798230172ca6409d8ca42ebddb1

Aliases

arxiv: 2603.26374 · arxiv_version: 2603.26374v2 · doi: 10.48550/arxiv.2603.26374 · pith_short_12: XMGZ75XT67ZH · pith_short_16: XMGZ75XT67ZHAR5A · pith_short_8: XMGZ75XT

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/XMGZ75XT67ZHAR5A2QCESJX2AA \
  | 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: bb0d9ff6f3f7f27047a0d4044926fa00210ab798230172ca6409d8ca42ebddb1

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "d51496ee01f22bc1d0f5e89e79eb5e37b1f5ceecf4e4815dd6e4716a373bafc4",
    "cross_cats_sorted": [],
    "license": "http://creativecommons.org/licenses/by-nc-sa/4.0/",
    "primary_cat": "quant-ph",
    "submitted_at": "2026-03-27T12:58:48Z",
    "title_canon_sha256": "3fa56398a15a3ee00cb946d01b198adca0b0320c42c5e43c90e9af702393e5ef"
  },
  "schema_version": "1.0",
  "source": {
    "id": "2603.26374",
    "kind": "arxiv",
    "version": 2
  }
}