Pith Number

pith:5VBGG5FI

pith:2026:5VBGG5FIR6RM5NPP7J4P5VTQNR

not attested not anchored not stored refs pending

Characterisation of a satellite-to-ground channel for continuous variable quantum key distribution protocol

2), 2) ((1) School of Physics, (2) Integrated Quantum Networks Hub, Emma Tien Hwai Medlock (1), Engineering & Technology, Rupesh Kumar (1, Timothy Spiller (1), U.K., U.K.), University of York, Vinod N. Roa (1, YO10 5FT York, York Centre for Quantum Technologies

arxiv:2607.05109 v1 · 2026-07-06 · 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{5VBGG5FIR6RM5NPP7J4P5VTQNR}

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	2026-07-07T03:19:16.344342Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

ed426374a88fa2ceb5effa78fed6706c57c47d53d6a14c4e5046dde75d1a86d5

Aliases

arxiv: 2607.05109 · arxiv_version: 2607.05109v1 · doi: 10.48550/arxiv.2607.05109 · pith_short_12: 5VBGG5FIR6RM · pith_short_16: 5VBGG5FIR6RM5NPP · pith_short_8: 5VBGG5FI

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/5VBGG5FIR6RM5NPP7J4P5VTQNR \
  | 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: ed426374a88fa2ceb5effa78fed6706c57c47d53d6a14c4e5046dde75d1a86d5

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "562b928c1f0cdc550eb465b10dcdccb1f8ac0ccedb92de117d50bd99182c0386",
    "cross_cats_sorted": [],
    "license": "http://creativecommons.org/licenses/by/4.0/",
    "primary_cat": "quant-ph",
    "submitted_at": "2026-07-06T14:04:08Z",
    "title_canon_sha256": "add585fbbc6f45b2a87f81e0dfa9562ddaf02e6066c77cb83ddb80242c4d2acf"
  },
  "schema_version": "1.0",
  "source": {
    "id": "2607.05109",
    "kind": "arxiv",
    "version": 1
  }
}