Pith Number

pith:SXWDWRIR

pith:2021:SXWDWRIR65YAIMKCLLIUXGTMGT

not attested not anchored not stored refs pending

A Survey on Non-Geostationary Satellite Systems: The Communication Perspective

Eva Lagunas, Hayder Al-Hraishawi, Houcine Chougrani, Steven Kisseleff, Symeon Chatzinotas

arxiv:2107.05312 v4 · 2021-07-12 · eess.SP

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

Add to your LaTeX paper

\usepackage{pith}
\pithnumber{SXWDWRIR65YAIMKCLLIUXGTMGT}

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	2026-07-05T06:14:32.967226Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

95ec3b4511f7700431425ad14b9a6c34d6b273f0b137dcb5c61a5736e1404e3f

Aliases

arxiv: 2107.05312 · arxiv_version: 2107.05312v4 · doi: 10.48550/arxiv.2107.05312 · pith_short_12: SXWDWRIR65YA · pith_short_16: SXWDWRIR65YAIMKC · pith_short_8: SXWDWRIR

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/SXWDWRIR65YAIMKCLLIUXGTMGT \
  | 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: 95ec3b4511f7700431425ad14b9a6c34d6b273f0b137dcb5c61a5736e1404e3f

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "b1f17fddc09c05d5274f9d534c6caad4ed3752cf8dd0b722a0e57386c886c880",
    "cross_cats_sorted": [],
    "license": "http://creativecommons.org/licenses/by/4.0/",
    "primary_cat": "eess.SP",
    "submitted_at": "2021-07-12T10:48:49Z",
    "title_canon_sha256": "9823fd79ab49e135651d130d100859bc1bfc10491c59cedb8ed688ea0bd1579a"
  },
  "schema_version": "1.0",
  "source": {
    "id": "2107.05312",
    "kind": "arxiv",
    "version": 4
  }
}