Pith Number

pith:M4QW47QT

pith:2011:M4QW47QTSMPNZ33GHSRLZRUJOB

not attested not anchored not stored refs pending

Quantum measurement bounds beyond the uncertainty relations

Lorenzo Maccone, Seth Lloyd, Vittorio Giovannetti

arxiv:1109.5661 v1 · 2011-09-26 · 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{M4QW47QTSMPNZ33GHSRLZRUJOB}

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	2026-05-18T03:51:25.614766Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

67216e7e13931edcef663ca2bcc68970755a20b287b5c2bd2f0029d640217ee4

Aliases

arxiv: 1109.5661 · arxiv_version: 1109.5661v1 · doi: 10.48550/arxiv.1109.5661 · pith_short_12: M4QW47QTSMPN · pith_short_16: M4QW47QTSMPNZ33G · pith_short_8: M4QW47QT

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/M4QW47QTSMPNZ33GHSRLZRUJOB \
  | 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: 67216e7e13931edcef663ca2bcc68970755a20b287b5c2bd2f0029d640217ee4

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "035a444878c3b84fc40076ddb38f26ebfd239a25099d6d05aaae7f84ca880c87",
    "cross_cats_sorted": [],
    "license": "http://arxiv.org/licenses/nonexclusive-distrib/1.0/",
    "primary_cat": "quant-ph",
    "submitted_at": "2011-09-26T18:21:03Z",
    "title_canon_sha256": "25e56deeb367810fa2e49dff0097516764e022a455757dd1773c314c81a4d830"
  },
  "schema_version": "1.0",
  "source": {
    "id": "1109.5661",
    "kind": "arxiv",
    "version": 1
  }
}