Pith Number

pith:BTC2RFRH

pith:2018:BTC2RFRHNDAQR7K7WN4PYKNVSF

not attested not anchored not stored refs pending

Radio-over-fiber using an optical antenna based on Rydberg states of atoms

A. B. Deb, N. Kj{\ae}rgaard

arxiv:1803.09424 v2 · 2018-03-26 · physics.atom-ph

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

Add to your LaTeX paper

\usepackage{pith}
\pithnumber{BTC2RFRHNDAQR7K7WN4PYKNVSF}

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	2026-05-18T00:14:53.553071Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

0cc5a8962768c108fd5fb378fc29b5915786a33d60b26e6db254383a382d08c7

Aliases

arxiv: 1803.09424 · arxiv_version: 1803.09424v2 · doi: 10.48550/arxiv.1803.09424 · pith_short_12: BTC2RFRHNDAQ · pith_short_16: BTC2RFRHNDAQR7K7 · pith_short_8: BTC2RFRH

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/BTC2RFRHNDAQR7K7WN4PYKNVSF \
  | 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: 0cc5a8962768c108fd5fb378fc29b5915786a33d60b26e6db254383a382d08c7

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "414fa0d12fdd67e0b60e2f9735b109d0662b8434ae20b70fa8e8fb48d1f3b2ab",
    "cross_cats_sorted": [],
    "license": "http://arxiv.org/licenses/nonexclusive-distrib/1.0/",
    "primary_cat": "physics.atom-ph",
    "submitted_at": "2018-03-26T05:56:28Z",
    "title_canon_sha256": "24e325f99cec94254aecbcaf5baae219b6d42ba7b17d3eed72a83010f2437480"
  },
  "schema_version": "1.0",
  "source": {
    "id": "1803.09424",
    "kind": "arxiv",
    "version": 2
  }
}