Pith Number

pith:OMWPIKLT

pith:2020:OMWPIKLTPYXDTQW3ODW4NY3DW7

not attested not anchored not stored refs pending

Quantum enhanced optical phase estimation with a squeezed thermal state

Hong Wang, Jinliang Qin, Juan Yu, Kunchi Peng, Xiaojun Jia, Yue Qin, Zhihui Yan

arxiv:2004.05831 v1 · 2020-04-13 · 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{OMWPIKLTPYXDTQW3ODW4NY3DW7}

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	2026-07-05T00:54:41.353238Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

732cf429737e2e39c2db70edc6e363b7ce6dc0c8ed0d1696356bd14cebd09eba

Aliases

arxiv: 2004.05831 · arxiv_version: 2004.05831v1 · doi: 10.48550/arxiv.2004.05831 · pith_short_12: OMWPIKLTPYXD · pith_short_16: OMWPIKLTPYXDTQW3 · pith_short_8: OMWPIKLT

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/OMWPIKLTPYXDTQW3ODW4NY3DW7 \
  | 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: 732cf429737e2e39c2db70edc6e363b7ce6dc0c8ed0d1696356bd14cebd09eba

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "895d969a726bc73c944bb8caf11e5060f38c59a5616c8292bbc7c82aaa1caa9d",
    "cross_cats_sorted": [],
    "license": "http://arxiv.org/licenses/nonexclusive-distrib/1.0/",
    "primary_cat": "quant-ph",
    "submitted_at": "2020-04-13T09:02:48Z",
    "title_canon_sha256": "13c4c7a2caffe2653f8f529ab2a61487e3080994705ac8af040a50eb08206198"
  },
  "schema_version": "1.0",
  "source": {
    "id": "2004.05831",
    "kind": "arxiv",
    "version": 1
  }
}