Pith Number

pith:CKZPLKET

pith:2008:CKZPLKETAFDUHKWFIADSNFEKJZ

not attested not anchored not stored refs pending

Measurement noise floor for a long-distance optical carrier transmission via fiber

B. Lipphardt, F. Vogt, G. Grosche, H. Schnatz, K. Predehl, O. Terra, R. Holzwarth, T. Haensch, U. Sterr

arxiv:0812.0289 v1 · 2008-12-01 · physics.optics · 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{CKZPLKETAFDUHKWFIADSNFEKJZ}

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	2026-05-18T00:37:05.959927Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

12b2f5a893014743aac5400726948a4e7075992f25a10fbcf6fa21ebf463e7d2

Aliases

arxiv: 0812.0289 · arxiv_version: 0812.0289v1 · doi: 10.48550/arxiv.0812.0289 · pith_short_12: CKZPLKETAFDU · pith_short_16: CKZPLKETAFDUHKWF · pith_short_8: CKZPLKET

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/CKZPLKETAFDUHKWFIADSNFEKJZ \
  | 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: 12b2f5a893014743aac5400726948a4e7075992f25a10fbcf6fa21ebf463e7d2

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "8ac39434945933bc3c36d9dc0016f5be492de68c3b2979e0c67086ff65a07b53",
    "cross_cats_sorted": [
      "physics.atom-ph"
    ],
    "license": "http://arxiv.org/licenses/nonexclusive-distrib/1.0/",
    "primary_cat": "physics.optics",
    "submitted_at": "2008-12-01T13:17:41Z",
    "title_canon_sha256": "57fc1f3919dcb1d7a28975b841873eb6f2d8597e059275ed7c30f89c6fb0b5c1"
  },
  "schema_version": "1.0",
  "source": {
    "id": "0812.0289",
    "kind": "arxiv",
    "version": 1
  }
}