Pith Number

pith:EITZSPGY

pith:2017:EITZSPGYZ2KN5BMBN7AQYNXMLJ

not attested not anchored not stored refs pending

Fundamental precision limit of a Mach-Zehnder interferometric sensor when one of the inputs is the vacuum

Chenglong You, Jonathan P. Dowling, Kaushik P. Seshadreesan, Masahiro Takeoka, Shuro Izumi

arxiv:1705.09506 v1 · 2017-05-26 · 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{EITZSPGYZ2KN5BMBN7AQYNXMLJ}

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	2026-05-18T00:30:04.187262Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

2227993cd8ce94de85816fc10c36ec5a4aa8460e5c78b61c25a3840783d459fc

Aliases

arxiv: 1705.09506 · arxiv_version: 1705.09506v1 · doi: 10.48550/arxiv.1705.09506 · pith_short_12: EITZSPGYZ2KN · pith_short_16: EITZSPGYZ2KN5BMB · pith_short_8: EITZSPGY

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/EITZSPGYZ2KN5BMBN7AQYNXMLJ \
  | 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: 2227993cd8ce94de85816fc10c36ec5a4aa8460e5c78b61c25a3840783d459fc

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "8fd882b6b4be41857705bebc0a827bb58343fe14adda2d0c69c39f525ddafbea",
    "cross_cats_sorted": [],
    "license": "http://arxiv.org/licenses/nonexclusive-distrib/1.0/",
    "primary_cat": "quant-ph",
    "submitted_at": "2017-05-26T10:00:16Z",
    "title_canon_sha256": "c4a6755543ca3585b407c70dc835d203cbf87aff71837b4ea5a59c269ca46f7b"
  },
  "schema_version": "1.0",
  "source": {
    "id": "1705.09506",
    "kind": "arxiv",
    "version": 1
  }
}