Pith Number

pith:73J4S4GP

pith:2003:73J4S4GP37MIO5RAW7AR3EYN67

not attested not anchored not stored refs pending

An invitation to quantum tomography

Madalin Guta, Richard Gill

arxiv:quant-ph/0303020 v2 · 2003-03-04 · 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{73J4S4GP37MIO5RAW7AR3EYN67}

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.

Cited by

1 paper in Pith

Detecting entanglement of non-Gaussian continuous-variable states from single-copy homodyne measurements

Receipt and verification

First computed	2026-07-04T14:46:08.000627Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

fed3c970cfdfd8877620b7c11d930df7c854117f52ee4413d8956dd86388532b

Aliases

arxiv: quant-ph/0303020 · arxiv_version: quant-ph/0303020v2 · doi: 10.48550/arxiv.quant-ph/0303020 · pith_short_12: 73J4S4GP37MI · pith_short_16: 73J4S4GP37MIO5RA · pith_short_8: 73J4S4GP

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/73J4S4GP37MIO5RAW7AR3EYN67 \
  | 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: fed3c970cfdfd8877620b7c11d930df7c854117f52ee4413d8956dd86388532b

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "e568e7af762b0ff082264c0f72b8e8902e72a00bc56faf5c5d98e2476473386b",
    "cross_cats_sorted": [],
    "license": "",
    "primary_cat": "quant-ph",
    "submitted_at": "2003-03-04T17:09:52Z",
    "title_canon_sha256": "e11735f62d49298945caa33d3ed7da7015d33f54baa7770a8694f89d447c8d02"
  },
  "schema_version": "1.0",
  "source": {
    "id": "quant-ph/0303020",
    "kind": "arxiv",
    "version": 2
  }
}