Pith Number

pith:OQ6VXNIB

pith:2010:OQ6VXNIBCCDLNCP2SNEW46KHM3

not attested not anchored not stored refs pending

Quadripartite continuous-variable entanglement via quadruply concurrent downconversion

A. S. Bradley, M. K. Olsen, O. Pfister, S. L. W. Midgley

arxiv:1002.2019 v1 · 2010-02-10 · 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{OQ6VXNIBCCDLNCP2SNEW46KHM3}

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	2026-05-18T02:09:10.398328Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

743d5bb5011086b689fa93496e794766ecbd746f23b7ae0546ec0fb2ffd434c7

Aliases

arxiv: 1002.2019 · arxiv_version: 1002.2019v1 · doi: 10.48550/arxiv.1002.2019 · pith_short_12: OQ6VXNIBCCDL · pith_short_16: OQ6VXNIBCCDLNCP2 · pith_short_8: OQ6VXNIB

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/OQ6VXNIBCCDLNCP2SNEW46KHM3 \
  | 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: 743d5bb5011086b689fa93496e794766ecbd746f23b7ae0546ec0fb2ffd434c7

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "0b2d4d454fede5208ee0f07fd605d7b66e285c1a686ee9dd13f7c45323b8fcc8",
    "cross_cats_sorted": [],
    "license": "http://arxiv.org/licenses/nonexclusive-distrib/1.0/",
    "primary_cat": "quant-ph",
    "submitted_at": "2010-02-10T02:20:39Z",
    "title_canon_sha256": "6f787a71317e8ec1426d0195c42d69a9aeafd3c8ffbdbbb643d65b3dedf41083"
  },
  "schema_version": "1.0",
  "source": {
    "id": "1002.2019",
    "kind": "arxiv",
    "version": 1
  }
}