Pith Number

pith:4GP556NI

pith:2012:4GP556NITGXV6DK57XYE4BG6AZ

not attested not anchored not stored refs pending

Quantum discord and classical correlation can tighten the uncertainty principle in the presence of quantum memory

A. K. Rajagopal, Arun Kumar Pati, A. R. Usha Devi, Mark M. Wilde, Sudha

arxiv:1204.3803 v3 · 2012-04-17 · 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{4GP556NITGXV6DK57XYE4BG6AZ}

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	2026-05-18T03:43:52.381558Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

e19fdef9a899af5f0d5dfdf04e04de067628bb72097767cb8c58bf1634eeca53

Aliases

arxiv: 1204.3803 · arxiv_version: 1204.3803v3 · doi: 10.48550/arxiv.1204.3803 · pith_short_12: 4GP556NITGXV · pith_short_16: 4GP556NITGXV6DK5 · pith_short_8: 4GP556NI

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/4GP556NITGXV6DK57XYE4BG6AZ \
  | 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: e19fdef9a899af5f0d5dfdf04e04de067628bb72097767cb8c58bf1634eeca53

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "e8436431717f7d82738d1b1e94c365c8a45848260d7146dc2acbf93dc5ce958b",
    "cross_cats_sorted": [],
    "license": "http://arxiv.org/licenses/nonexclusive-distrib/1.0/",
    "primary_cat": "quant-ph",
    "submitted_at": "2012-04-17T14:43:44Z",
    "title_canon_sha256": "844c7fbe252d54f2e76cf9317515a3910c49e39cf5c6fda5240f64081d3ada17"
  },
  "schema_version": "1.0",
  "source": {
    "id": "1204.3803",
    "kind": "arxiv",
    "version": 3
  }
}