Pith Number

pith:Y5BAMKIY

pith:2019:Y5BAMKIY7GLDNW3AIAWS6AIN4M

not attested not anchored not stored refs pending

OSNR limitations of chip-based optical frequency comb sources for WDM coherent communications

Christian Koos, Juned N. Kemal, Pablo Marin-Palomo, Sebastian Randel, Wolfgang Freude

arxiv:1907.01042 v1 · 2019-07-01 · eess.SP · physics.optics

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

Add to your LaTeX paper

\usepackage{pith}
\pithnumber{Y5BAMKIY7GLDNW3AIAWS6AIN4M}

Prints a linked badge after your title and injects PDF metadata. Compiles on arXiv. Learn more

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	2026-05-17T23:41:41.398663Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

c742062918f99636db60402d2f010de3172ebfd91b7afbe6d82ba8783773c5dc

Aliases

arxiv: 1907.01042 · arxiv_version: 1907.01042v1 · doi: 10.48550/arxiv.1907.01042 · pith_short_12: Y5BAMKIY7GLD · pith_short_16: Y5BAMKIY7GLDNW3A · pith_short_8: Y5BAMKIY

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/Y5BAMKIY7GLDNW3AIAWS6AIN4M \
  | 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: c742062918f99636db60402d2f010de3172ebfd91b7afbe6d82ba8783773c5dc

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "1032c699a65b2ead81b89d53ae694afaefd269a97c40a712f2ca7bb56346e098",
    "cross_cats_sorted": [
      "physics.optics"
    ],
    "license": "http://arxiv.org/licenses/nonexclusive-distrib/1.0/",
    "primary_cat": "eess.SP",
    "submitted_at": "2019-07-01T19:59:26Z",
    "title_canon_sha256": "aaa43aed8be3453fbd606ae3f60cb7ab2610a56c9143b8ea9cb0ac0e4614ecba"
  },
  "schema_version": "1.0",
  "source": {
    "id": "1907.01042",
    "kind": "arxiv",
    "version": 1
  }
}