Pith Number

pith:S5H2W3OC

pith:2000:S5H2W3OCJZCJHCWYDZZ3V4AH6F

not attested not anchored not stored refs pending

Quantum Feedback for Protection of Schroedinger-cat states

(2) Ecole Normale Superieure, David Vitali (1), France), Italy, Jean-Michel Raimond (2) ((1) University of Camerino, Mauro Fortunato (1), Paolo Tombesi (1), Paris

arxiv:quant-ph/0004025 v1 · 2000-04-06 · 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{S5H2W3OCJZCJHCWYDZZ3V4AH6F}

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	2026-05-18T00:57:18.826259Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

974fab6dc24e44938ad81e73baf007f1524bf13fb44dd71053b645d74280596c

Aliases

arxiv: quant-ph/0004025 · arxiv_version: quant-ph/0004025v1 · doi: 10.48550/arxiv.quant-ph/0004025 · pith_short_12: S5H2W3OCJZCJ · pith_short_16: S5H2W3OCJZCJHCWY · pith_short_8: S5H2W3OC

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/S5H2W3OCJZCJHCWYDZZ3V4AH6F \
  | 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: 974fab6dc24e44938ad81e73baf007f1524bf13fb44dd71053b645d74280596c

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "69492a0b86485fd9317120e1ec7c7644cae9637d1e55fe1b9cd90a422f8ecae3",
    "cross_cats_sorted": [],
    "license": "",
    "primary_cat": "quant-ph",
    "submitted_at": "2000-04-06T01:18:00Z",
    "title_canon_sha256": "835f0cded24aa6e1f126fae23d692c43a16dc25cff36301b497f150ba5b8ae75"
  },
  "schema_version": "1.0",
  "source": {
    "id": "quant-ph/0004025",
    "kind": "arxiv",
    "version": 1
  }
}