Pith Number

pith:7MPTXXGC

pith:2002:7MPTXXGCHTWWNTE64VPXMFXCL5

not attested not anchored not stored refs pending

Experimental detection of entanglement via witness operators and local measurements

A. Ekert, A. Sanpera, C. Macchiavello, D. Bruss, M. Lewenstein, O. Guehne, P. Hyllus

arxiv:quant-ph/0210134 v2 · 2002-10-18 · 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{7MPTXXGCHTWWNTE64VPXMFXCL5}

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	2026-05-18T01:37:59.755516Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

fb1f3bdcc23ced66cc9ee55f7616e25f77b9f23f5dc228dd339fb6cb8d746eda

Aliases

arxiv: quant-ph/0210134 · arxiv_version: quant-ph/0210134v2 · doi: 10.48550/arxiv.quant-ph/0210134 · pith_short_12: 7MPTXXGCHTWW · pith_short_16: 7MPTXXGCHTWWNTE6 · pith_short_8: 7MPTXXGC

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/7MPTXXGCHTWWNTE64VPXMFXCL5 \
  | 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: fb1f3bdcc23ced66cc9ee55f7616e25f77b9f23f5dc228dd339fb6cb8d746eda

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "d1830bf7d4330800633de93f567a5b07e69cdc9724568b95229aea055815660d",
    "cross_cats_sorted": [],
    "license": "",
    "primary_cat": "quant-ph",
    "submitted_at": "2002-10-18T08:38:47Z",
    "title_canon_sha256": "07bceb173fe612361b4c6114f8f2d374500430184b1a9998cae1e66b03b11351"
  },
  "schema_version": "1.0",
  "source": {
    "id": "quant-ph/0210134",
    "kind": "arxiv",
    "version": 2
  }
}