Pith Number

pith:TQON2TC6

pith:2010:TQON2TC6CXK25U22L75FE5XYNT

not attested not anchored not stored refs pending

Homodyne extimation of quantum states purity by exploiting covariant uncertainty relation

A. Porzio, F. Ventriglia, G. Marmo, S. Solimeno, V.I. Man'ko

arxiv:1012.3297 v2 · 2010-12-15 · quant-ph

Open paper page JSON Open Graph Bundle Merged state What is a Pith Number?

Add to your LaTeX paper

\usepackage{pith}
\pithnumber{TQON2TC6CXK25U22L75FE5XYNT}

Prints a linked badge after your title and injects PDF metadata. Compiles on arXiv. Learn more

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	2026-05-18T03:39:51.207842Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

9c1cdd4c5e15d5aed35a5ffa5276f86ccdaf844c033c9d01055a08eca03eb15c

Aliases

arxiv: 1012.3297 · arxiv_version: 1012.3297v2 · doi: 10.48550/arxiv.1012.3297 · pith_short_12: TQON2TC6CXK2 · pith_short_16: TQON2TC6CXK25U22 · pith_short_8: TQON2TC6

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/TQON2TC6CXK25U22L75FE5XYNT \
  | 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: 9c1cdd4c5e15d5aed35a5ffa5276f86ccdaf844c033c9d01055a08eca03eb15c

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "f1736758a9a18a64824580081a96783d43b0edec88258f52b51ea410285ca3bb",
    "cross_cats_sorted": [],
    "license": "http://arxiv.org/licenses/nonexclusive-distrib/1.0/",
    "primary_cat": "quant-ph",
    "submitted_at": "2010-12-15T12:02:56Z",
    "title_canon_sha256": "249c26b8dd058f5b75ec902e3e1743acfff80584b14f440829ca4e845c3a39ab"
  },
  "schema_version": "1.0",
  "source": {
    "id": "1012.3297",
    "kind": "arxiv",
    "version": 2
  }
}