Pith Number

pith:KZB54BAQ

pith:2019:KZB54BAQFIIIS3CCKINLL4PKBT

not attested not anchored not stored refs pending

High-sensitivity free space optical communications using low size, weight and power hardware

Alexander D. Griffiths, Johannes Herrnsdorf, Martin D. Dawson, Michael J. Strain, Oscar Almer, Robert K. Henderson

arxiv:1902.00495 v1 · 2019-01-22 · physics.app-ph · physics.ins-det · 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{KZB54BAQFIIIS3CCKINLL4PKBT}

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	2026-05-17T23:54:57.319630Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

5643de04102a10896c42521ab5f1ea0cf70cc5fabc3e456e9f34e78ba465582e

Aliases

arxiv: 1902.00495 · arxiv_version: 1902.00495v1 · doi: 10.48550/arxiv.1902.00495 · pith_short_12: KZB54BAQFIII · pith_short_16: KZB54BAQFIIIS3CC · pith_short_8: KZB54BAQ

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/KZB54BAQFIIIS3CCKINLL4PKBT \
  | 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: 5643de04102a10896c42521ab5f1ea0cf70cc5fabc3e456e9f34e78ba465582e

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "2451007e9e331b4b43ac1f0f7a5b5a280810f85ba52db7b28e65ad0c60ab5d6d",
    "cross_cats_sorted": [
      "physics.ins-det",
      "physics.optics"
    ],
    "license": "http://arxiv.org/licenses/nonexclusive-distrib/1.0/",
    "primary_cat": "physics.app-ph",
    "submitted_at": "2019-01-22T17:04:28Z",
    "title_canon_sha256": "13fce0c6af25070c959fcb8bf577b5413fcb127c094deb04822bf64db30d4980"
  },
  "schema_version": "1.0",
  "source": {
    "id": "1902.00495",
    "kind": "arxiv",
    "version": 1
  }
}