Pith Number

pith:7QC7IY4O

pith:2011:7QC7IY4OZ4EA7BZVDID3PEYCON

not attested not anchored not stored refs pending

Octave-spanning frequency comb generation in a silicon nitride chip

Alexander L. Gaeta, Jacob S. Levy, Kasturi Saha, Michal Lipson, Y. Henry Wen, Yoshitomo Okawachi

arxiv:1107.5555 v1 · 2011-07-27 · 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{7QC7IY4OZ4EA7BZVDID3PEYCON}

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	2026-05-18T02:01:08.786285Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

fc05f4638ecf080f87351a07b793027352463b51d94e7d1e1022f961fef62416

Aliases

arxiv: 1107.5555 · arxiv_version: 1107.5555v1 · doi: 10.48550/arxiv.1107.5555 · pith_short_12: 7QC7IY4OZ4EA · pith_short_16: 7QC7IY4OZ4EA7BZV · pith_short_8: 7QC7IY4O

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/7QC7IY4OZ4EA7BZVDID3PEYCON \
  | 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: fc05f4638ecf080f87351a07b793027352463b51d94e7d1e1022f961fef62416

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "e95def5a0ed1ac512f387e0ac9c459e65f7f757a1ba29731d4687ff8c239d8bf",
    "cross_cats_sorted": [],
    "license": "http://arxiv.org/licenses/nonexclusive-distrib/1.0/",
    "primary_cat": "physics.optics",
    "submitted_at": "2011-07-27T18:24:34Z",
    "title_canon_sha256": "c6610bee0b0f9fe6f7ff16480f99896325ab39b0ea8523fba052c90d135e8621"
  },
  "schema_version": "1.0",
  "source": {
    "id": "1107.5555",
    "kind": "arxiv",
    "version": 1
  }
}