Pith Number

pith:ZND42A4G

pith:2012:ZND42A4GZM6A4H4LJMVBADLQTN

not attested not anchored not stored refs pending

A comprehensive design and performance analysis of LEO satellite quantum communication

B. Helou, B. Kumar, B. L. Higgins, C. Erven, D. Hudson, E. Meyer-Scott, H. Huebel, I. D'Souza, J.-P. Bourgoin, R. Girard, R. Laflamme, T. Jennewein

arxiv:1211.2733 v1 · 2012-11-12 · quant-ph · physics.optics

Open paper page JSON Open Graph Bundle Merged state Verified badge What is a Pith Number?

Add to your LaTeX paper

\usepackage{pith}
\pithnumber{ZND42A4GZM6A4H4LJMVBADLQTN}

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	2026-05-18T00:41:18.718612Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

cb47cd0386cb3c0e1f8b4b2a100d709b52fbb8ccc10222216fe0699d44b266f2

Aliases

arxiv: 1211.2733 · arxiv_version: 1211.2733v1 · doi: 10.48550/arxiv.1211.2733 · pith_short_12: ZND42A4GZM6A · pith_short_16: ZND42A4GZM6A4H4L · pith_short_8: ZND42A4G

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/ZND42A4GZM6A4H4LJMVBADLQTN \
  | 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: cb47cd0386cb3c0e1f8b4b2a100d709b52fbb8ccc10222216fe0699d44b266f2

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "743fb670bd4a85f8f41b7a0c6fc87d88482751b59647bd439e4a90d845015be5",
    "cross_cats_sorted": [
      "physics.optics"
    ],
    "license": "http://arxiv.org/licenses/nonexclusive-distrib/1.0/",
    "primary_cat": "quant-ph",
    "submitted_at": "2012-11-12T18:58:16Z",
    "title_canon_sha256": "848d86c9dc5758ad17517cfef7093fa9f36415d617e25dd40a8893b25e769891"
  },
  "schema_version": "1.0",
  "source": {
    "id": "1211.2733",
    "kind": "arxiv",
    "version": 1
  }
}