Pith Number

pith:4MJ7XSF7

pith:2017:4MJ7XSF7QMVW3HO4KHTVKFXBOY

not attested not anchored not stored refs pending

Distributed Quantum Metrology and the Entangling Power of Linear Networks

Alexey V. Gorshkov, Kurt Jacobs, Michael Foss-Feig, Wenchao Ge, Zachary Eldredge

arxiv:1707.06655 v1 · 2017-07-20 · 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{4MJ7XSF7QMVW3HO4KHTVKFXBOY}

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	2026-05-18T00:09:20.109801Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

e313fbc8bf832b6d9ddc51e75516e1763feb0f5f670c5b9d0836ceb1281b8485

Aliases

arxiv: 1707.06655 · arxiv_version: 1707.06655v1 · doi: 10.48550/arxiv.1707.06655 · pith_short_12: 4MJ7XSF7QMVW · pith_short_16: 4MJ7XSF7QMVW3HO4 · pith_short_8: 4MJ7XSF7

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/4MJ7XSF7QMVW3HO4KHTVKFXBOY \
  | 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: e313fbc8bf832b6d9ddc51e75516e1763feb0f5f670c5b9d0836ceb1281b8485

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "f4e2205e5750a953b7515318b30f7be1e847fc6711435dbe0a467a81a821b883",
    "cross_cats_sorted": [],
    "license": "http://arxiv.org/licenses/nonexclusive-distrib/1.0/",
    "primary_cat": "quant-ph",
    "submitted_at": "2017-07-20T18:00:18Z",
    "title_canon_sha256": "23c5717195afce87d54d07f7e9333e6ed85cd2db60ad651cf2fe8abca98f6d66"
  },
  "schema_version": "1.0",
  "source": {
    "id": "1707.06655",
    "kind": "arxiv",
    "version": 1
  }
}