Pith Number

pith:M7ZQLHPT

pith:2018:M7ZQLHPTGLX2VE3PVJJET5PDQH

not attested not anchored not stored refs pending

120 Tbit/s Transmission over Single Mode Fibre using Continuous 91 nm Hybrid Raman-EDFA Amplification

Adrian Edwards, Daniel Semrau, Domanic Lavery, Eric Sillekens, Jeanne James, Lidia Galdino, Maria Ionescu, Polina Bayvel, Robert I. Killey, Steve Desbruslais, Stuart Barnes, Wayne Pelouch

arxiv:1804.01845 v1 · 2018-03-16 · physics.app-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{M7ZQLHPTGLX2VE3PVJJET5PDQH}

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	2026-05-18T00:19:09.767341Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

67f3059df332efaa936faa5249f5e381e71510857b553d757760930c54d1080d

Aliases

arxiv: 1804.01845 · arxiv_version: 1804.01845v1 · doi: 10.48550/arxiv.1804.01845 · pith_short_12: M7ZQLHPTGLX2 · pith_short_16: M7ZQLHPTGLX2VE3P · pith_short_8: M7ZQLHPT

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/M7ZQLHPTGLX2VE3PVJJET5PDQH \
  | 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: 67f3059df332efaa936faa5249f5e381e71510857b553d757760930c54d1080d

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "60948a0ccd151f44568b2c5788d6293f682b8345237d239ed3bdc67fdac54763",
    "cross_cats_sorted": [],
    "license": "http://creativecommons.org/licenses/by/4.0/",
    "primary_cat": "physics.app-ph",
    "submitted_at": "2018-03-16T15:18:06Z",
    "title_canon_sha256": "df4f3603d3ba4c2ac5fb363a132d0e0f6309c38fd1893c75aab211bb2fe9b64b"
  },
  "schema_version": "1.0",
  "source": {
    "id": "1804.01845",
    "kind": "arxiv",
    "version": 1
  }
}