Pith Number

pith:RY5Y3IJN

pith:2024:RY5Y3IJNXKQKW5RILT4WAAM5HQ

not attested not anchored not stored refs pending

Fundamental bounds for parameter estimation with few measurements

Augusto Smerzi, Manuel Gessner, Valentin Gebhart

arxiv:2402.14495 v1 · 2024-02-22 · 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{RY5Y3IJNXKQKW5RILT4WAAM5HQ}

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.

Cited by

1 paper in Pith

Closed-form Bayesian quantum estimation of Gaussian states

Receipt and verification

First computed	2026-07-05T07:48:11.136845Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

8e3b8da12dbaa0ab76285cf960019d3c23538e65db5364be6edb3fc8bf497482

Aliases

arxiv: 2402.14495 · arxiv_version: 2402.14495v1 · doi: 10.48550/arxiv.2402.14495 · pith_short_12: RY5Y3IJNXKQK · pith_short_16: RY5Y3IJNXKQKW5RI · pith_short_8: RY5Y3IJN

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/RY5Y3IJNXKQKW5RILT4WAAM5HQ \
  | 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: 8e3b8da12dbaa0ab76285cf960019d3c23538e65db5364be6edb3fc8bf497482

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "399073fa0d9270d0c2bfbd943fa6b42bcf9a67ffb9e11eff03c596507b3f974f",
    "cross_cats_sorted": [],
    "license": "http://arxiv.org/licenses/nonexclusive-distrib/1.0/",
    "primary_cat": "quant-ph",
    "submitted_at": "2024-02-22T12:40:08Z",
    "title_canon_sha256": "0e41c8d0bb8ee045996e4ac85984ba5f2bd6158c43b8fb927142209733ddcd8b"
  },
  "schema_version": "1.0",
  "source": {
    "id": "2402.14495",
    "kind": "arxiv",
    "version": 1
  }
}