Pith Number

pith:SAQKL7EF

pith:1997:SAQKL7EF5AOC3EEDH3N4N5U4K5

not attested not anchored not stored refs pending

Added noise in homodyne measurement of field-observables

Giacomo M. D'Ariano, Italy), Matteo G. A. Paris (Dipartimento di Fisica 'Alessandro Volta', Pavia

arxiv:quant-ph/9704034 v1 · 1997-04-17 · 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{SAQKL7EF5AOC3EEDH3N4N5U4K5}

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	2026-07-04T16:06:29.065812Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

9020a5fc85e81c2d90833edbc6f69c5743146026b6ee909781e88e7adef3a62f

Aliases

arxiv: quant-ph/9704034 · arxiv_version: quant-ph/9704034v1 · doi: 10.48550/arxiv.quant-ph/9704034 · pith_short_12: SAQKL7EF5AOC · pith_short_16: SAQKL7EF5AOC3EED · pith_short_8: SAQKL7EF

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/SAQKL7EF5AOC3EEDH3N4N5U4K5 \
  | 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: 9020a5fc85e81c2d90833edbc6f69c5743146026b6ee909781e88e7adef3a62f

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "b7c76a16e276bf059b9891127c160210deed91bf3011d41c6a704a0d780eb10e",
    "cross_cats_sorted": [],
    "license": "",
    "primary_cat": "quant-ph",
    "submitted_at": "1997-04-17T17:14:29Z",
    "title_canon_sha256": "61d2963a00fddf7bf798277e4093261447ea3c8f2dee4554040cb05d9c23e0eb"
  },
  "schema_version": "1.0",
  "source": {
    "id": "quant-ph/9704034",
    "kind": "arxiv",
    "version": 1
  }
}