Pith Number

pith:H6XPEAJB

pith:2006:H6XPEAJB6EPFBFTACTRAYT3IUT

not attested not anchored not stored refs pending

Direct measurement of concurrence for atomic two-qubit pure states

C.E. Lopez, E. Solano, F. Lastra, G. Romero, J.C. Retamal

arxiv:quant-ph/0611016 v1 · 2006-11-01 · 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{H6XPEAJB6EPFBFTACTRAYT3IUT}

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	2026-05-18T01:37:53.930020Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

3faef20121f11e50966014e20c4f68a4e4db16d82467cd95bf8b1d424d471310

Aliases

arxiv: quant-ph/0611016 · arxiv_version: quant-ph/0611016v1 · doi: 10.48550/arxiv.quant-ph/0611016 · pith_short_12: H6XPEAJB6EPF · pith_short_16: H6XPEAJB6EPFBFTA · pith_short_8: H6XPEAJB

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/H6XPEAJB6EPFBFTACTRAYT3IUT \
  | 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: 3faef20121f11e50966014e20c4f68a4e4db16d82467cd95bf8b1d424d471310

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "f10e6faa6a5de13c094a224db5590c3c2f3621b9e0cd5c1d7533b0c0615e26bd",
    "cross_cats_sorted": [],
    "license": "",
    "primary_cat": "quant-ph",
    "submitted_at": "2006-11-01T20:43:33Z",
    "title_canon_sha256": "e94a08977e5c93048b0fbd4e80423d912f3d5cc3d999afda900b06b15c4b2f1a"
  },
  "schema_version": "1.0",
  "source": {
    "id": "quant-ph/0611016",
    "kind": "arxiv",
    "version": 1
  }
}