Pith Number

pith:PKHFVD7R

pith:2011:PKHFVD7RPCXSS6RQJRRON5DRKO

not attested not anchored not stored refs pending

Finite-time quantum-to-classical transition for a Schroedinger-cat state

Janika Paavola, Matteo G. A. Paris, Michael J. W. Hall, Sabrina Maniscalco

arxiv:1103.4150 v4 · 2011-03-21 · 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{PKHFVD7RPCXSS6RQJRRON5DRKO}

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	2026-05-18T02:22:11.855238Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

7a8e5a8ff178af297a304c62e6f471538d0bcc58742aba1a84947283441fb178

Aliases

arxiv: 1103.4150 · arxiv_version: 1103.4150v4 · doi: 10.48550/arxiv.1103.4150 · pith_short_12: PKHFVD7RPCXS · pith_short_16: PKHFVD7RPCXSS6RQ · pith_short_8: PKHFVD7R

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/PKHFVD7RPCXSS6RQJRRON5DRKO \
  | 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: 7a8e5a8ff178af297a304c62e6f471538d0bcc58742aba1a84947283441fb178

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "28d2f343e7c839668a93022d3538650cb42774331c72284ce69cc44bd77ed01e",
    "cross_cats_sorted": [],
    "license": "http://arxiv.org/licenses/nonexclusive-distrib/1.0/",
    "primary_cat": "quant-ph",
    "submitted_at": "2011-03-21T20:58:23Z",
    "title_canon_sha256": "c90b73d7f5e4e7fc6cdeae261c86ce14bb519d9b5e7b6c9830f6c7a81ba51e81"
  },
  "schema_version": "1.0",
  "source": {
    "id": "1103.4150",
    "kind": "arxiv",
    "version": 4
  }
}