Pith Number

pith:6RTA3NFB

pith:2010:6RTA3NFBWTUEXDQ2DLIMXVNK4K

not attested not anchored not stored refs pending

Uncertainty limits for quantum metrology obtained from the statistics of weak measurements

Holger F. Hofmann

arxiv:1005.4741 v3 · 2010-05-26 · 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{6RTA3NFBWTUEXDQ2DLIMXVNK4K}

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	2026-05-18T04:27:45.350865Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

f4660db4a1b4e84b8e1a1ad0cbd5aae295bfc8bce7cad0612086fd364e638ad0

Aliases

arxiv: 1005.4741 · arxiv_version: 1005.4741v3 · doi: 10.48550/arxiv.1005.4741 · pith_short_12: 6RTA3NFBWTUE · pith_short_16: 6RTA3NFBWTUEXDQ2 · pith_short_8: 6RTA3NFB

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/6RTA3NFBWTUEXDQ2DLIMXVNK4K \
  | 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: f4660db4a1b4e84b8e1a1ad0cbd5aae295bfc8bce7cad0612086fd364e638ad0

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "c63628618d22fe7e27b5f39d9cf730dc17a60018b2231417e370ca5a639544ad",
    "cross_cats_sorted": [],
    "license": "http://arxiv.org/licenses/nonexclusive-distrib/1.0/",
    "primary_cat": "quant-ph",
    "submitted_at": "2010-05-26T06:38:39Z",
    "title_canon_sha256": "5425a01cbe78f008c61cbaedc11c5794afebb02da6caca269a2237156e075851"
  },
  "schema_version": "1.0",
  "source": {
    "id": "1005.4741",
    "kind": "arxiv",
    "version": 3
  }
}