Pith Number

pith:7TTRYZFF

pith:2019:7TTRYZFF5VEWVVXLADJU2JWR2N

not attested not anchored not stored refs pending

Frequency combs in a microring optical parametric oscillator

Alberto Villois, Danila N. Puzyrev, Dmitry V. Skryabin, Ingo Breunig, Nikita M. Kondratiev

arxiv:1908.04688 v1 · 2019-08-13 · 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{7TTRYZFF5VEWVVXLADJU2JWR2N}

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	2026-07-05T00:08:36.868113Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

fce71c64a5ed496ad6eb00d34d26d1d37cb89fd02e4a89334865c4bd51d50ac8

Aliases

arxiv: 1908.04688 · arxiv_version: 1908.04688v1 · doi: 10.48550/arxiv.1908.04688 · pith_short_12: 7TTRYZFF5VEW · pith_short_16: 7TTRYZFF5VEWVVXL · pith_short_8: 7TTRYZFF

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/7TTRYZFF5VEWVVXLADJU2JWR2N \
  | 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: fce71c64a5ed496ad6eb00d34d26d1d37cb89fd02e4a89334865c4bd51d50ac8

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "4db29a69d00b77d1606701125d61a8f55bd1b2dbe0bcb8f0e14b7e4a73c6d8b3",
    "cross_cats_sorted": [],
    "license": "http://arxiv.org/licenses/nonexclusive-distrib/1.0/",
    "primary_cat": "physics.optics",
    "submitted_at": "2019-08-13T14:58:58Z",
    "title_canon_sha256": "517667ee586c2b3fb17d9f5d310a33c23d6fea6ca24da00c74887719510cbd6f"
  },
  "schema_version": "1.0",
  "source": {
    "id": "1908.04688",
    "kind": "arxiv",
    "version": 1
  }
}