Pith Number

pith:57JHNWMO

pith:2014:57JHNWMOGJLNYZZ4NSRGAQA3EA

not attested not anchored not stored refs pending

Revisiting Quantum discord for two-qubit X states: Error bound to Analytical formula

Jaehee Shin, Jinho Chang, Min Namkung, Younghun Kwon

arxiv:1404.6329 v1 · 2014-04-25 · 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{57JHNWMOGJLNYZZ4NSRGAQA3EA}

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	2026-05-18T02:53:16.799184Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

efd276d98e3256dc673c6ca260401b203f51ced72b7e543382871b5a989b279f

Aliases

arxiv: 1404.6329 · arxiv_version: 1404.6329v1 · doi: 10.48550/arxiv.1404.6329 · pith_short_12: 57JHNWMOGJLN · pith_short_16: 57JHNWMOGJLNYZZ4 · pith_short_8: 57JHNWMO

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/57JHNWMOGJLNYZZ4NSRGAQA3EA \
  | 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: efd276d98e3256dc673c6ca260401b203f51ced72b7e543382871b5a989b279f

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "7be0478e22d7c64e889213bbb04cc2f023e2d6feb40e878583f7ae098d62d47d",
    "cross_cats_sorted": [],
    "license": "http://arxiv.org/licenses/nonexclusive-distrib/1.0/",
    "primary_cat": "quant-ph",
    "submitted_at": "2014-04-25T05:58:42Z",
    "title_canon_sha256": "1fb3546a8f57e5f49fb0ae963e94ffbc04b208b81b7bc866378a3bd37f2bd2eb"
  },
  "schema_version": "1.0",
  "source": {
    "id": "1404.6329",
    "kind": "arxiv",
    "version": 1
  }
}