Pith Number

pith:V42YYST7

pith:2018:V42YYST7N3JR47RHQKKLZH46BV

not attested not anchored not stored refs pending

Exact analytical solution of Entanglement of Formation and Quantum Discord for Werner state and Generalized Werner-Like states

E. Castro, S. D\'iaz-Sol\'orzano

arxiv:1802.05877 v1 · 2018-02-16 · 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{V42YYST7N3JR47RHQKKLZH46BV}

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	2026-05-18T00:23:10.694914Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

af358c4a7f6ed31e7e278294bc9f9e0d6c0d1598fa68e64c8e2105ce2c4b8cea

Aliases

arxiv: 1802.05877 · arxiv_version: 1802.05877v1 · doi: 10.48550/arxiv.1802.05877 · pith_short_12: V42YYST7N3JR · pith_short_16: V42YYST7N3JR47RH · pith_short_8: V42YYST7

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/V42YYST7N3JR47RHQKKLZH46BV \
  | 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: af358c4a7f6ed31e7e278294bc9f9e0d6c0d1598fa68e64c8e2105ce2c4b8cea

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "ca48654c11cb4ba1aa66c26d7e549d4c6999560cd21451a7a73894881a8bea7b",
    "cross_cats_sorted": [],
    "license": "http://arxiv.org/licenses/nonexclusive-distrib/1.0/",
    "primary_cat": "quant-ph",
    "submitted_at": "2018-02-16T09:37:36Z",
    "title_canon_sha256": "daf2e70587619fbd34bd0d7d0cbdec8732fc64a03d6e84d340de4d0ab66f1770"
  },
  "schema_version": "1.0",
  "source": {
    "id": "1802.05877",
    "kind": "arxiv",
    "version": 1
  }
}