Pith Number

pith:63RF77K6

pith:2009:63RF77K6TUADLEGCYIFHGYNMW2

not attested not anchored not stored refs pending

Quantum chaos and operator fidelity metric

Paolo Giorda, Paolo Zanardi

arxiv:0903.1262 v1 · 2009-03-06 · 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{63RF77K6TUADLEGCYIFHGYNMW2}

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	2026-05-18T02:14:36.772828Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

f6e25ffd5e9d003590c2c20a7361acb69934aac0b8cd42a1c683a25e4bdae975

Aliases

arxiv: 0903.1262 · arxiv_version: 0903.1262v1 · doi: 10.48550/arxiv.0903.1262 · pith_short_12: 63RF77K6TUAD · pith_short_16: 63RF77K6TUADLEGC · pith_short_8: 63RF77K6

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/63RF77K6TUADLEGCYIFHGYNMW2 \
  | 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: f6e25ffd5e9d003590c2c20a7361acb69934aac0b8cd42a1c683a25e4bdae975

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "b837251d7304ac3317183b35cc47e910da334a64f24038f55bde85dd7a194b7a",
    "cross_cats_sorted": [],
    "license": "http://arxiv.org/licenses/nonexclusive-distrib/1.0/",
    "primary_cat": "quant-ph",
    "submitted_at": "2009-03-06T17:42:30Z",
    "title_canon_sha256": "02d8c3a4ab386c9fef7aa07726f16487dc799103b7a22483d774f4e2bc226387"
  },
  "schema_version": "1.0",
  "source": {
    "id": "0903.1262",
    "kind": "arxiv",
    "version": 1
  }
}