Pith Number

pith:L4D73J4M

pith:2025:L4D73J4MHPKP22D2CZTANHKOTK

not attested not anchored not stored refs pending

Optical downlink modeling for low-earth-orbit and medium-earth-orbit satellites under atmospheric turbulence with a quantum-state-tomography use case

Artur Czerwinski, Jakub J. Borkowski, Maciej Wi\'sniewski, Saeed Haddadi

arxiv:2512.13828 v2 · 2025-12-15 · quant-ph · physics.comp-ph · physics.optics · physics.space-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{L4D73J4MHPKP22D2CZTANHKOTK}

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	2026-08-04T02:09:16.575849Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

5f07fda78c3bd4fd687a1666069d4e9a955c3c3ca5239e6c04f6a6c25b248a49

Aliases

arxiv: 2512.13828 · arxiv_version: 2512.13828v2 · doi: 10.48550/arxiv.2512.13828 · pith_short_12: L4D73J4MHPKP · pith_short_16: L4D73J4MHPKP22D2 · pith_short_8: L4D73J4M

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/L4D73J4MHPKP22D2CZTANHKOTK \
  | 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: 5f07fda78c3bd4fd687a1666069d4e9a955c3c3ca5239e6c04f6a6c25b248a49

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "bfa59c7ac435fa1a869551bcf8188e5abbcfbb608da7a8dcb86288113d472bb9",
    "cross_cats_sorted": [
      "physics.comp-ph",
      "physics.optics",
      "physics.space-ph"
    ],
    "license": "http://arxiv.org/licenses/nonexclusive-distrib/1.0/",
    "primary_cat": "quant-ph",
    "submitted_at": "2025-12-15T19:09:37Z",
    "title_canon_sha256": "754b8539a752b01ed031afe4c82b35c5f5d1cf08f6e3b9eb644ae0541b2fb46b"
  },
  "schema_version": "1.0",
  "source": {
    "id": "2512.13828",
    "kind": "arxiv",
    "version": 2
  }
}