Pith Number

pith:C7NE2U6P

pith:2019:C7NE2U6PWUXMFPVJVVMYUQNWTT

not attested not anchored not stored refs pending

The Standard Quantum Limit of Coherent Beam Combining

Ch. Marquardt, C. R. Muller, F. Sedlmeir, G. Leuchs, V. O. Martynov

arxiv:1903.07088 v1 · 2019-03-17 · 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{C7NE2U6PWUXMFPVJVVMYUQNWTT}

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	2026-05-17T23:51:04.279628Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

17da4d53cfb52ec2bea9ad598a41b69cd5cb30046cd4806574ee6a2dee1666c6

Aliases

arxiv: 1903.07088 · arxiv_version: 1903.07088v1 · doi: 10.48550/arxiv.1903.07088 · pith_short_12: C7NE2U6PWUXM · pith_short_16: C7NE2U6PWUXMFPVJ · pith_short_8: C7NE2U6P

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/C7NE2U6PWUXMFPVJVVMYUQNWTT \
  | 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: 17da4d53cfb52ec2bea9ad598a41b69cd5cb30046cd4806574ee6a2dee1666c6

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "acf2b969fc6776d16e74ec1823590d2794209ac0c4d9d6a82e7c03a7f70e55a6",
    "cross_cats_sorted": [],
    "license": "http://arxiv.org/licenses/nonexclusive-distrib/1.0/",
    "primary_cat": "quant-ph",
    "submitted_at": "2019-03-17T13:57:59Z",
    "title_canon_sha256": "33486518a4d60bda9cac2a7cdd54f7df7731d0d8c4760baa5e4c6a68e4d1ddce"
  },
  "schema_version": "1.0",
  "source": {
    "id": "1903.07088",
    "kind": "arxiv",
    "version": 1
  }
}