Pith Number

pith:YQBVGK37

pith:2015:YQBVGK37TYOER46PNEL5EWDNTL

not attested not anchored not stored refs pending

The ultimate precision limits for noisy frequency estimation

Andrea Smirne, Jan Kolodynski, Rafal Demkowicz-Dobrzanski, Susana F. Huelga

arxiv:1511.02708 v1 · 2015-11-09 · 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{YQBVGK37TYOER46PNEL5EWDNTL}

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	2026-05-18T01:18:09.067922Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

c403532b7f9e1c48f3cf6917d2586d9ac1966a6a408ed5211dbbec245cf01590

Aliases

arxiv: 1511.02708 · arxiv_version: 1511.02708v1 · doi: 10.48550/arxiv.1511.02708 · pith_short_12: YQBVGK37TYOE · pith_short_16: YQBVGK37TYOER46P · pith_short_8: YQBVGK37

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/YQBVGK37TYOER46PNEL5EWDNTL \
  | 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: c403532b7f9e1c48f3cf6917d2586d9ac1966a6a408ed5211dbbec245cf01590

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "2c26a438e9b87ca4b5990c18001400429ae57127d724844b6e2e176053fddb8f",
    "cross_cats_sorted": [],
    "license": "http://arxiv.org/licenses/nonexclusive-distrib/1.0/",
    "primary_cat": "quant-ph",
    "submitted_at": "2015-11-09T15:08:10Z",
    "title_canon_sha256": "0c02d6b36f44340b17dba1191e7d33b523f242ecd83b234844ab7ed449910c61"
  },
  "schema_version": "1.0",
  "source": {
    "id": "1511.02708",
    "kind": "arxiv",
    "version": 1
  }
}