Pith Number

pith:CURNCEOS

pith:2014:CURNCEOS4LCD4DORQR3J3OCJWX

not attested not anchored not stored refs pending

Robust quantum metrological schemes based on protection of quantum Fisher information

C.H. Oh, Sixia Yu, Xiao-Ming Lu

arxiv:1405.4052 v3 · 2014-05-16 · 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{CURNCEOS4LCD4DORQR3J3OCJWX}

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	2026-05-18T01:55:53.472835Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

1522d111d2e2c43e0dd184769db849b5d019c5466eca9ee9426d270e4b7131df

Aliases

arxiv: 1405.4052 · arxiv_version: 1405.4052v3 · doi: 10.48550/arxiv.1405.4052 · pith_short_12: CURNCEOS4LCD · pith_short_16: CURNCEOS4LCD4DOR · pith_short_8: CURNCEOS

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/CURNCEOS4LCD4DORQR3J3OCJWX \
  | 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: 1522d111d2e2c43e0dd184769db849b5d019c5466eca9ee9426d270e4b7131df

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "8e3ee1624b878b9a994c9b2dec32288f61d4f49139c271cc0c1428c041b251df",
    "cross_cats_sorted": [],
    "license": "http://arxiv.org/licenses/nonexclusive-distrib/1.0/",
    "primary_cat": "quant-ph",
    "submitted_at": "2014-05-16T02:22:07Z",
    "title_canon_sha256": "dfd6d4bb11601ee88e51e7a941fc929c3b25c69d7a057a14c759e625409a5ae1"
  },
  "schema_version": "1.0",
  "source": {
    "id": "1405.4052",
    "kind": "arxiv",
    "version": 3
  }
}