Pith Number

pith:X4A7OXWF

pith:2010:X4A7OXWFFOYEW4I7RU5KCP2XK2

not attested not anchored not stored refs pending

Adaptive Subcarrier PSK Intensity Modulation in Free Space Optical Systems

Athanasios S. Lioumpas, George K. Karagiannidis, Nestor D. Chatzidiamantis, Shlomi Arnon

arxiv:1002.1897 v1 · 2010-02-09 · cs.NI

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

Add to your LaTeX paper

\usepackage{pith}
\pithnumber{X4A7OXWFFOYEW4I7RU5KCP2XK2}

Prints a linked badge after your title and injects PDF metadata. Compiles on arXiv. Learn more

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	2026-05-18T00:58:19.713766Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

bf01f75ec52bb04b711f8d3aa13f5756b6933b2268f01e74cd9c36426db7e240

Aliases

arxiv: 1002.1897 · arxiv_version: 1002.1897v1 · doi: 10.48550/arxiv.1002.1897 · pith_short_12: X4A7OXWFFOYE · pith_short_16: X4A7OXWFFOYEW4I7 · pith_short_8: X4A7OXWF

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/X4A7OXWFFOYEW4I7RU5KCP2XK2 \
  | 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: bf01f75ec52bb04b711f8d3aa13f5756b6933b2268f01e74cd9c36426db7e240

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "8527abf4977db5ad8028e9d9ecd0cb67ef6490cdc198ff3335ab62abae6d63b9",
    "cross_cats_sorted": [],
    "license": "http://arxiv.org/licenses/nonexclusive-distrib/1.0/",
    "primary_cat": "cs.NI",
    "submitted_at": "2010-02-09T16:28:04Z",
    "title_canon_sha256": "18c6b3e3475cf7d7584dc82720e4cf7efcff68b9303e1ee4da0d19edc9e4828b"
  },
  "schema_version": "1.0",
  "source": {
    "id": "1002.1897",
    "kind": "arxiv",
    "version": 1
  }
}