Pith Number

pith:OG3HOV53

pith:2020:OG3HOV53LMG5VFMC2UD2DOOMEB

not attested not anchored not stored refs pending

600 km repeater-like quantum communications with dual-band stabilisation

Andrew J. Shields, Marco Lucamarini, Mariella Minder, Ming-Jun Li, Mirko Pittaluga, Mirko Sanzaro, Robert I. Woodward, Zhiliang Yuan

arxiv:2012.15099 v2 · 2020-12-30 · 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{OG3HOV53LMG5VFMC2UD2DOOMEB}

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	2026-07-05T04:25:40.424484Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

71b67757bb5b0dda9582d507a1b9cc2041443da281fee52f0f1f7410918d0d93

Aliases

arxiv: 2012.15099 · arxiv_version: 2012.15099v2 · doi: 10.48550/arxiv.2012.15099 · pith_short_12: OG3HOV53LMG5 · pith_short_16: OG3HOV53LMG5VFMC · pith_short_8: OG3HOV53

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/OG3HOV53LMG5VFMC2UD2DOOMEB \
  | 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: 71b67757bb5b0dda9582d507a1b9cc2041443da281fee52f0f1f7410918d0d93

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "c24e869f7dc317f9f3abdc5320faf5d9aa6cc5bf3f850984620b76c1e2ad4048",
    "cross_cats_sorted": [],
    "license": "http://arxiv.org/licenses/nonexclusive-distrib/1.0/",
    "primary_cat": "quant-ph",
    "submitted_at": "2020-12-30T10:12:33Z",
    "title_canon_sha256": "d66c7c563f5986d03d2a9271f85147c00702a9c1b57f0f1e57b0a5a4b3d6031c"
  },
  "schema_version": "1.0",
  "source": {
    "id": "2012.15099",
    "kind": "arxiv",
    "version": 2
  }
}