Pith Number

pith:H4SERIF2

pith:2014:H4SERIF2FEVOINSPG7QBEAAIXB

not attested not anchored not stored refs pending

Quantum correlations in optical metrology: Heisenberg-limited phase estimation without mode entanglement

Jaspreet Sahota, Nicol\'as Quesada

arxiv:1404.7110 v2 · 2014-04-28 · quant-ph

Open paper page JSON Open Graph Bundle Merged state What is a Pith Number?

Add to your LaTeX paper

\usepackage{pith}
\pithnumber{H4SERIF2FEVOINSPG7QBEAAIXB}

Prints a linked badge after your title and injects PDF metadata. Compiles on arXiv. Learn more

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	2026-05-18T02:29:53.118625Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

3f2448a0ba292ae4364f37e0120008b8591d8cf41910741ff72060ef358b184e

Aliases

arxiv: 1404.7110 · arxiv_version: 1404.7110v2 · doi: 10.48550/arxiv.1404.7110 · pith_short_12: H4SERIF2FEVO · pith_short_16: H4SERIF2FEVOINSP · pith_short_8: H4SERIF2

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/H4SERIF2FEVOINSPG7QBEAAIXB \
  | 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: 3f2448a0ba292ae4364f37e0120008b8591d8cf41910741ff72060ef358b184e

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "607d0cef6cf82c422dfea95987abb0d70766313f6ed6bab7a548dae1b264c2ba",
    "cross_cats_sorted": [],
    "license": "http://arxiv.org/licenses/nonexclusive-distrib/1.0/",
    "primary_cat": "quant-ph",
    "submitted_at": "2014-04-28T19:41:22Z",
    "title_canon_sha256": "f0412e8e552bfff87e059dbbb8b54bb3f1f343cbfa55a6f29c3dbf730a956318"
  },
  "schema_version": "1.0",
  "source": {
    "id": "1404.7110",
    "kind": "arxiv",
    "version": 2
  }
}