Pith Number

pith:UYX4PW3X

pith:2017:UYX4PW3XQ7MCCA3S3H3U7KBK4E

not attested not anchored not stored refs pending

Non-asymptotic analysis of quantum metrology protocols beyond the Cram\'er-Rao bound

Jacob Dunningham, Jes\'us Rubio, Paul Knott

arxiv:1707.05022 v3 · 2017-07-17 · 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{UYX4PW3XQ7MCCA3S3H3U7KBK4E}

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	2026-05-18T00:24:52.166150Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

a62fc7db7787d8210372d9f74fa82ae1392e8d45edef8a8d8991dd8c7847e666

Aliases

arxiv: 1707.05022 · arxiv_version: 1707.05022v3 · doi: 10.48550/arxiv.1707.05022 · pith_short_12: UYX4PW3XQ7MC · pith_short_16: UYX4PW3XQ7MCCA3S · pith_short_8: UYX4PW3X

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/UYX4PW3XQ7MCCA3S3H3U7KBK4E \
  | 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: a62fc7db7787d8210372d9f74fa82ae1392e8d45edef8a8d8991dd8c7847e666

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "2edfb2a80829a167a3ab4f7b5081acf385715742ccfcd387cf7176b07159954c",
    "cross_cats_sorted": [],
    "license": "http://arxiv.org/licenses/nonexclusive-distrib/1.0/",
    "primary_cat": "quant-ph",
    "submitted_at": "2017-07-17T07:16:22Z",
    "title_canon_sha256": "01f620ce32a3bf7902f04303e5a89b384f4b04806f65dec6cd3d4a05b230925e"
  },
  "schema_version": "1.0",
  "source": {
    "id": "1707.05022",
    "kind": "arxiv",
    "version": 3
  }
}