Pith Number

pith:ODKEA47P

pith:2015:ODKEA47PC2RXFKTCZ23TDRPNNW

not attested not anchored not stored refs pending

Quantum variance: a measure of quantum coherence and quantum correlations for many-body systems

Ir\'en\'ee Fr\'erot, Tommaso Roscilde

arxiv:1509.06741 v2 · 2015-09-22 · cond-mat.stat-mech · 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{ODKEA47PC2RXFKTCZ23TDRPNNW}

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	2026-05-18T01:08:43.364630Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

70d44073ef16a372aa62ceb731c5ed6d9e12da6e0454eaca56528490d3c642ab

Aliases

arxiv: 1509.06741 · arxiv_version: 1509.06741v2 · doi: 10.48550/arxiv.1509.06741 · pith_short_12: ODKEA47PC2RX · pith_short_16: ODKEA47PC2RXFKTC · pith_short_8: ODKEA47P

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/ODKEA47PC2RXFKTCZ23TDRPNNW \
  | 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: 70d44073ef16a372aa62ceb731c5ed6d9e12da6e0454eaca56528490d3c642ab

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "93eff46220d25fd5ca4e2447187883b8b1e6ad0c6c99bde3e1e5fa9431f13f7f",
    "cross_cats_sorted": [
      "quant-ph"
    ],
    "license": "http://arxiv.org/licenses/nonexclusive-distrib/1.0/",
    "primary_cat": "cond-mat.stat-mech",
    "submitted_at": "2015-09-22T19:35:11Z",
    "title_canon_sha256": "d415fc8f18f564962ef4f46dc1779427bd9874c74d3189d53e48b8d1c026c64c"
  },
  "schema_version": "1.0",
  "source": {
    "id": "1509.06741",
    "kind": "arxiv",
    "version": 2
  }
}