Pith Number

pith:EJX6OCAT

pith:2009:EJX6OCATTNQUWVWNJ6NTIH7ZQW

not attested not anchored not stored refs pending

Enhancement of parameter estimation by Kerr interaction

Carmen Invernizzi, Marco G. Genoni, Matteo G. A. Paris

arxiv:0906.0710 v4 · 2009-06-03 · 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{EJX6OCATTNQUWVWNJ6NTIH7ZQW}

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	2026-05-18T03:36:27.227859Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

226fe708139b614b56cd4f9b341ff985a40c837c3b07320a84b832f4abb0cdba

Aliases

arxiv: 0906.0710 · arxiv_version: 0906.0710v4 · doi: 10.48550/arxiv.0906.0710 · pith_short_12: EJX6OCATTNQU · pith_short_16: EJX6OCATTNQUWVWN · pith_short_8: EJX6OCAT

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/EJX6OCATTNQUWVWNJ6NTIH7ZQW \
  | 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: 226fe708139b614b56cd4f9b341ff985a40c837c3b07320a84b832f4abb0cdba

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "62671b485d821cbc528d78e302392f46931ce7c15defef7055aaa5d0dab2cc09",
    "cross_cats_sorted": [],
    "license": "http://arxiv.org/licenses/nonexclusive-distrib/1.0/",
    "primary_cat": "quant-ph",
    "submitted_at": "2009-06-03T14:57:57Z",
    "title_canon_sha256": "b0640fca0f9205d0422aa442bebfb0f046f4086c11c96b9f5a5bfe584c6e885e"
  },
  "schema_version": "1.0",
  "source": {
    "id": "0906.0710",
    "kind": "arxiv",
    "version": 4
  }
}