Pith Number

pith:6GGQ33OH

pith:2013:6GGQ33OHBQJWNZ4F3MWOC4QDXW

not attested not anchored not stored refs pending

Quantum Fisher Information of Entangled Coherent States in a Lossy Mach-Zehnder Interferometer

Jing Liu, Wei Zhong, Xiaoguang Wang, Xiaoxing Jing

arxiv:1307.8009 v2 · 2013-07-30 · 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{6GGQ33OHBQJWNZ4F3MWOC4QDXW}

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	2026-05-18T00:56:51.633450Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

f18d0dedc70c1366e785db2ce17203bd9ea81b1cc52457bf80fff4431b426414

Aliases

arxiv: 1307.8009 · arxiv_version: 1307.8009v2 · doi: 10.48550/arxiv.1307.8009 · pith_short_12: 6GGQ33OHBQJW · pith_short_16: 6GGQ33OHBQJWNZ4F · pith_short_8: 6GGQ33OH

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/6GGQ33OHBQJWNZ4F3MWOC4QDXW \
  | 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: f18d0dedc70c1366e785db2ce17203bd9ea81b1cc52457bf80fff4431b426414

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "fc6abe58a24b6e3971424ada56cd54c7d4cc31a5836d959450051b661f29a61e",
    "cross_cats_sorted": [],
    "license": "http://creativecommons.org/licenses/by/3.0/",
    "primary_cat": "quant-ph",
    "submitted_at": "2013-07-30T15:03:17Z",
    "title_canon_sha256": "e83241654c4a3a6c24419ecff07ee3a21466cecc5bdef784f40c010627053294"
  },
  "schema_version": "1.0",
  "source": {
    "id": "1307.8009",
    "kind": "arxiv",
    "version": 2
  }
}