Pith Number

pith:W2FQWH5M

pith:2022:W2FQWH5MMEBCLDHELZMXL2JMHY

not attested not anchored not stored refs pending

Degenerate optical parametric amplification in CMOS silicon

David Heydari, Dodd J. Gray Jr., Edwin Ng, Hideo Mabuchi, Jatadhari Mishra, Kambiz Jamshidi, Marc Jankowski, Mircea Catuneanu, M. M. Fejer, Ryan Hamerly

arxiv:2207.07365 v1 · 2022-07-15 · physics.optics · 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{W2FQWH5MMEBCLDHELZMXL2JMHY}

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	2026-07-05T04:40:31.729787Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

b68b0b1fac6102258ce45e5975e92c3e163749d1fd2d9e6c9dd7cd47829ef651

Aliases

arxiv: 2207.07365 · arxiv_version: 2207.07365v1 · doi: 10.48550/arxiv.2207.07365 · pith_short_12: W2FQWH5MMEBC · pith_short_16: W2FQWH5MMEBCLDHE · pith_short_8: W2FQWH5M

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/W2FQWH5MMEBCLDHELZMXL2JMHY \
  | 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: b68b0b1fac6102258ce45e5975e92c3e163749d1fd2d9e6c9dd7cd47829ef651

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "9bf918fd2d4f6b18027778c4603ca26f23f991d82dd08ad6619a3be0ded066fd",
    "cross_cats_sorted": [
      "physics.app-ph"
    ],
    "license": "http://arxiv.org/licenses/nonexclusive-distrib/1.0/",
    "primary_cat": "physics.optics",
    "submitted_at": "2022-07-15T09:26:57Z",
    "title_canon_sha256": "3dfa727479b83b717faef1f3065e5d3f3815928dddbe21c43c2c19183f1a49e8"
  },
  "schema_version": "1.0",
  "source": {
    "id": "2207.07365",
    "kind": "arxiv",
    "version": 1
  }
}