Pith Number

pith:BQXKZHUC

pith:2014:BQXKZHUCP443GU5LQTFVSGTJSS

not attested not anchored not stored refs pending

Multi-mode Entanglement is Detrimental to Lossy Optical Quantum Metrology

J.A. Dunningham, Kae Nemoto, P.A. Knott, T.J. Proctor, W.J. Munro

arxiv:1405.7198 v2 · 2014-05-28 · 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{BQXKZHUCP443GU5LQTFVSGTJSS}

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	2026-05-18T02:18:51.726086Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

0c2eac9e827f39b353ab84cb591a699480925f15aab23b079d5c299266584167

Aliases

arxiv: 1405.7198 · arxiv_version: 1405.7198v2 · doi: 10.48550/arxiv.1405.7198 · pith_short_12: BQXKZHUCP443 · pith_short_16: BQXKZHUCP443GU5L · pith_short_8: BQXKZHUC

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/BQXKZHUCP443GU5LQTFVSGTJSS \
  | 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: 0c2eac9e827f39b353ab84cb591a699480925f15aab23b079d5c299266584167

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "02bc36dad3cf7d2a5042423a7411a2ee0dcb5045821337435d6500c2c468557a",
    "cross_cats_sorted": [],
    "license": "http://arxiv.org/licenses/nonexclusive-distrib/1.0/",
    "primary_cat": "quant-ph",
    "submitted_at": "2014-05-28T11:14:43Z",
    "title_canon_sha256": "ab6f6439167e0876f999c9784298cb2ac2ca8b71c5b88aef258fa636e1a9d7a4"
  },
  "schema_version": "1.0",
  "source": {
    "id": "1405.7198",
    "kind": "arxiv",
    "version": 2
  }
}