Pith Number

pith:5KWD2WEG

pith:2018:5KWD2WEGGDNYFA66LYRKLVWJWD

not attested not anchored not stored refs pending

Quantum key establishment via a multimode fiber

Ivo M. Vellekoop, Lyubov V. Amitonova, Pepijn W. H. Pinkse, Tristan B. H. Tentrup

arxiv:1801.07180 v4 · 2018-01-19 · quant-ph · 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{5KWD2WEGGDNYFA66LYRKLVWJWD}

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	2026-07-05T01:54:24.968843Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

eaac3d588630db8283de5e22a5d6c9b0d4fcdfc563a5d4530cc2c620f9d944d8

Aliases

arxiv: 1801.07180 · arxiv_version: 1801.07180v4 · doi: 10.48550/arxiv.1801.07180 · pith_short_12: 5KWD2WEGGDNY · pith_short_16: 5KWD2WEGGDNYFA66 · pith_short_8: 5KWD2WEG

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/5KWD2WEGGDNYFA66LYRKLVWJWD \
  | 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: eaac3d588630db8283de5e22a5d6c9b0d4fcdfc563a5d4530cc2c620f9d944d8

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "39b2b089d50760a9c38514ddf24c66709ea9e20c1f44a5818680076d811285bb",
    "cross_cats_sorted": [
      "physics.optics"
    ],
    "license": "http://arxiv.org/licenses/nonexclusive-distrib/1.0/",
    "primary_cat": "quant-ph",
    "submitted_at": "2018-01-19T15:31:50Z",
    "title_canon_sha256": "e60811dd3b0f6db2c291a68b655d71d9422011cd2704b36f0d5593499a5beadc"
  },
  "schema_version": "1.0",
  "source": {
    "id": "1801.07180",
    "kind": "arxiv",
    "version": 4
  }
}