Pith Number

pith:L4BDRGDK

pith:2002:L4BDRGDKTTGATUIEBU7IP2ZTXV

not attested not anchored not stored refs pending

Information-disturbance tradeoff in quantum measurement on the uniform ensemble and on the mutually unbiased bases

Howard Barnum

arxiv:quant-ph/0205155 v1 · 2002-05-24 · 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{L4BDRGDKTTGATUIEBU7IP2ZTXV}

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

No-Go Theorem for Quantum Heat Engines Powered Purely by Quantum Measurements in the Steady Regime

Receipt and verification

First computed	2026-07-04T14:45:56.798885Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

5f0238986a9ccc09d1040d3e87eb33bd64d64ccba28a61b62a2bf55cdedecd22

Aliases

arxiv: quant-ph/0205155 · arxiv_version: quant-ph/0205155v1 · doi: 10.48550/arxiv.quant-ph/0205155 · pith_short_12: L4BDRGDKTTGA · pith_short_16: L4BDRGDKTTGATUIE · pith_short_8: L4BDRGDK

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/L4BDRGDKTTGATUIEBU7IP2ZTXV \
  | 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: 5f0238986a9ccc09d1040d3e87eb33bd64d64ccba28a61b62a2bf55cdedecd22

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "9576e3de2eb72f21b11f470d14a1b4f12cc1655bb913677e30365a8c1380774f",
    "cross_cats_sorted": [],
    "license": "",
    "primary_cat": "quant-ph",
    "submitted_at": "2002-05-24T18:47:00Z",
    "title_canon_sha256": "32561b26e175f701ce2db6d8fc4eff1f69d9a4f6a8cf1969a7e32fe6aeac90b5"
  },
  "schema_version": "1.0",
  "source": {
    "id": "quant-ph/0205155",
    "kind": "arxiv",
    "version": 1
  }
}