Pith Number

pith:QO4ZXFNE

pith:2007:QO4ZXFNE7GIXXX2BL4ZG3YGUSB

not attested not anchored not stored refs pending

Global information balance in quantum measurements

Francesco Buscemi, Masahito Hayashi, Michal Horodecki

arxiv:quant-ph/0702166 v5 · 2007-02-16 · 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{QO4ZXFNE7GIXXX2BL4ZG3YGUSB}

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	2026-07-04T15:12:05.471435Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

83b99b95a4f9917bdf415f326de0d490401223f926b76908aac0d29873bb4c33

Aliases

arxiv: quant-ph/0702166 · arxiv_version: quant-ph/0702166v5 · doi: 10.48550/arxiv.quant-ph/0702166 · pith_short_12: QO4ZXFNE7GIX · pith_short_16: QO4ZXFNE7GIXXX2B · pith_short_8: QO4ZXFNE

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/QO4ZXFNE7GIXXX2BL4ZG3YGUSB \
  | 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: 83b99b95a4f9917bdf415f326de0d490401223f926b76908aac0d29873bb4c33

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "cc90f987e8df5211f2297ddf9c6a7ea79f60773247c31a5c7aeeffaf4bf0843e",
    "cross_cats_sorted": [],
    "license": "",
    "primary_cat": "quant-ph",
    "submitted_at": "2007-02-16T09:05:46Z",
    "title_canon_sha256": "1d3dd64468b5f037ee6cc3feb9332b73f17fad313da819647c8a867939579281"
  },
  "schema_version": "1.0",
  "source": {
    "id": "quant-ph/0702166",
    "kind": "arxiv",
    "version": 5
  }
}