Pith Number

pith:GRANDBRW

pith:2023:GRANDBRWW443JI7VCUMTGAQJX2

not attested not anchored not stored refs pending

Ultimate precision limit of SU(2) and SU(1,1) interferometers in noisy metrology

Chun-Hua Yuan, Dong Li, Jie Zeng, L. Q. Chen, Weiping Zhang

arxiv:2302.09823 v1 · 2023-02-20 · 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{GRANDBRWW443JI7VCUMTGAQJX2}

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	2026-07-05T05:43:30.154424Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

3440d18636b739b4a3f51519330209be9575e3d149bf193cd3cba67304605c19

Aliases

arxiv: 2302.09823 · arxiv_version: 2302.09823v1 · doi: 10.48550/arxiv.2302.09823 · pith_short_12: GRANDBRWW443 · pith_short_16: GRANDBRWW443JI7V · pith_short_8: GRANDBRW

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/GRANDBRWW443JI7VCUMTGAQJX2 \
  | 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: 3440d18636b739b4a3f51519330209be9575e3d149bf193cd3cba67304605c19

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "cce0ad9c29c483a619082018cebec92c683beda90cc01623f55f628914d5d511",
    "cross_cats_sorted": [],
    "license": "http://arxiv.org/licenses/nonexclusive-distrib/1.0/",
    "primary_cat": "quant-ph",
    "submitted_at": "2023-02-20T08:07:50Z",
    "title_canon_sha256": "db62cc62bfe500eb5bab99fa6587c3345165ceef8cac7adb899a6a41b3447d20"
  },
  "schema_version": "1.0",
  "source": {
    "id": "2302.09823",
    "kind": "arxiv",
    "version": 1
  }
}