Pith Number

pith:DREKKAYF

pith:2019:DREKKAYFZTUEYY5M6VLAH5ALDU

not attested not anchored not stored refs pending

Simultaneous Readout of Noncommuting Collective Spin Observables beyond the Standard Quantum Limit

Alexis Bonnin, Helmut Strobel, Markus K. Oberthaler, Martin G\"arttner, Maximilian Pr\"ufer, Philipp Kunkel, Rodrigo Rosa-Medina, Stefan Lannig

arxiv:1904.01471 v1 · 2019-04-02 · cond-mat.quant-gas · 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{DREKKAYFZTUEYY5M6VLAH5ALDU}

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	2026-07-04T23:59:22.435973Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

1c48a50305cce84c63acf55603f40b1d113015d8702d1f4763904b9f72b21c63

Aliases

arxiv: 1904.01471 · arxiv_version: 1904.01471v1 · doi: 10.48550/arxiv.1904.01471 · pith_short_12: DREKKAYFZTUE · pith_short_16: DREKKAYFZTUEYY5M · pith_short_8: DREKKAYF

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/DREKKAYFZTUEYY5M6VLAH5ALDU \
  | 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: 1c48a50305cce84c63acf55603f40b1d113015d8702d1f4763904b9f72b21c63

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "7575e00c67a172cc4ceeced38361b0f4676716d486619e44a9a51ee2e7f5e1c2",
    "cross_cats_sorted": [
      "quant-ph"
    ],
    "license": "http://arxiv.org/licenses/nonexclusive-distrib/1.0/",
    "primary_cat": "cond-mat.quant-gas",
    "submitted_at": "2019-04-02T14:47:18Z",
    "title_canon_sha256": "253dd601969845e2a4a7c2e5d14e3c26646b8aae18f14c28f1f6186f91cd3edc"
  },
  "schema_version": "1.0",
  "source": {
    "id": "1904.01471",
    "kind": "arxiv",
    "version": 1
  }
}