Pith Number

pith:FL3KP4WG

pith:2015:FL3KP4WGBSPRRXOU6ODYFKXGN2

not attested not anchored not stored refs pending

Design and early development of a UAV terminal and a ground station for laser communications

Alberto Carrasco-Casado, Jose M. Sanchez-Pena, Ricardo Vergaz

arxiv:1506.08854 v1 · 2015-06-26 · astro-ph.IM

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

Add to your LaTeX paper

\usepackage{pith}
\pithnumber{FL3KP4WGBSPRRXOU6ODYFKXGN2}

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	2026-05-18T01:37:34.280939Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

2af6a7f2c60c9f18ddd4f38782aae66e8b499e2fbde9c694f0c6831ffb66d173

Aliases

arxiv: 1506.08854 · arxiv_version: 1506.08854v1 · doi: 10.48550/arxiv.1506.08854 · pith_short_12: FL3KP4WGBSPR · pith_short_16: FL3KP4WGBSPRRXOU · pith_short_8: FL3KP4WG

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/FL3KP4WGBSPRRXOU6ODYFKXGN2 \
  | 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: 2af6a7f2c60c9f18ddd4f38782aae66e8b499e2fbde9c694f0c6831ffb66d173

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "e297f1cf7d8c8b2c42277a77e2cfd93e81a68eeb3189a7ddb5dce85a947bc748",
    "cross_cats_sorted": [],
    "license": "http://creativecommons.org/publicdomain/zero/1.0/",
    "primary_cat": "astro-ph.IM",
    "submitted_at": "2015-06-26T03:02:43Z",
    "title_canon_sha256": "ea5e3696597f397a72fefd80b12a2dd8606b40174d36d234acd38472b3bc5617"
  },
  "schema_version": "1.0",
  "source": {
    "id": "1506.08854",
    "kind": "arxiv",
    "version": 1
  }
}