Pith Number

pith:HGIPPFI6

pith:2018:HGIPPFI67Y4ZPCYILG3JDW5WM5

not attested not anchored not stored refs pending

Precision Limits in Quantum Metrology with Open Quantum Systems

Andrea Smirne, Jan F. Haase, Jan Ko{\l}ody\'nski, Rafa{\l} Demkowicz-Dobrza\'nski, Susana F. Huelga

arxiv:1807.11882 v4 · 2018-07-31 · quant-ph

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

Add to your LaTeX paper

\usepackage{pith}
\pithnumber{HGIPPFI67Y4ZPCYILG3JDW5WM5}

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	2026-05-17T23:56:53.105646Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

3990f7951efe39978b0859b691dbb66770266c8cf89c8c0f867357f239370b18

Aliases

arxiv: 1807.11882 · arxiv_version: 1807.11882v4 · doi: 10.48550/arxiv.1807.11882 · pith_short_12: HGIPPFI67Y4Z · pith_short_16: HGIPPFI67Y4ZPCYI · pith_short_8: HGIPPFI6

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/HGIPPFI67Y4ZPCYILG3JDW5WM5 \
  | 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: 3990f7951efe39978b0859b691dbb66770266c8cf89c8c0f867357f239370b18

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "610af534610e49156657b87c11a5fd83bbaa73c6f9ee410fe6ddfb5e6e162f86",
    "cross_cats_sorted": [],
    "license": "http://arxiv.org/licenses/nonexclusive-distrib/1.0/",
    "primary_cat": "quant-ph",
    "submitted_at": "2018-07-31T15:55:07Z",
    "title_canon_sha256": "6ea1da95c86f87d60fb97983ae6b29efa23ca7aac30b2a052c6599f096cc688c"
  },
  "schema_version": "1.0",
  "source": {
    "id": "1807.11882",
    "kind": "arxiv",
    "version": 4
  }
}