Pith Number

pith:NAQER6IL

pith:2015:NAQER6ILWPJNOWVDXML5XHCTID

not attested not anchored not stored refs pending

Interpreting Quantum Discord in Quantum Metrology

Davide Girolami

arxiv:1502.04549 v2 · 2015-02-16 · 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{NAQER6ILWPJNOWVDXML5XHCTID}

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	2026-05-18T01:28:05.527693Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

682048f90bb3d2d75aa3bb17db9c5340ccfe605f42e7d91a52129ae84fd10716

Aliases

arxiv: 1502.04549 · arxiv_version: 1502.04549v2 · doi: 10.48550/arxiv.1502.04549 · pith_short_12: NAQER6ILWPJN · pith_short_16: NAQER6ILWPJNOWVD · pith_short_8: NAQER6IL

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/NAQER6ILWPJNOWVDXML5XHCTID \
  | 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: 682048f90bb3d2d75aa3bb17db9c5340ccfe605f42e7d91a52129ae84fd10716

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "086d3094742e4286bf26c5a5b2683323f155440ff4223e4f1c41550426204c1a",
    "cross_cats_sorted": [],
    "license": "http://arxiv.org/licenses/nonexclusive-distrib/1.0/",
    "primary_cat": "quant-ph",
    "submitted_at": "2015-02-16T14:27:16Z",
    "title_canon_sha256": "7eafd290c11dc89cd079e59dab0f7f9e4f557bad3538c0a18ed2225569a35a90"
  },
  "schema_version": "1.0",
  "source": {
    "id": "1502.04549",
    "kind": "arxiv",
    "version": 2
  }
}