Pith Number

pith:MDSEJDLG

pith:2026:MDSEJDLGJEMKCOLLSUD4CM243A

not attested not anchored not stored refs pending

Machine Learning-Driven Design of Mixed-Pitch Grating Couplers for Co-Packaged Optics Applications

Chuan Seng Tan, Wai Cheung Ma, Yeow Kheng Lim, Yu Dian Lim, Yun Da Chua

arxiv:2607.15534 v1 · 2026-07-17 · physics.optics · cs.SY · eess.SY

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

Add to your LaTeX paper

\usepackage{pith}
\pithnumber{MDSEJDLGJEMKCOLLSUD4CM243A}

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	2026-07-20T00:18:38.736900Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

60e4448d664918a1396b9507c1335cd810695d038958944264a23f639f2215bd

Aliases

arxiv: 2607.15534 · arxiv_version: 2607.15534v1 · doi: 10.48550/arxiv.2607.15534 · pith_short_12: MDSEJDLGJEMK · pith_short_16: MDSEJDLGJEMKCOLL · pith_short_8: MDSEJDLG

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/MDSEJDLGJEMKCOLLSUD4CM243A \
  | 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: 60e4448d664918a1396b9507c1335cd810695d038958944264a23f639f2215bd

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "f9d2a0f316cd8eb1974ca1e1d09980dc3c14920fc96d94c97ed53dd60533294c",
    "cross_cats_sorted": [
      "cs.SY",
      "eess.SY"
    ],
    "license": "http://creativecommons.org/licenses/by/4.0/",
    "primary_cat": "physics.optics",
    "submitted_at": "2026-07-17T01:05:56Z",
    "title_canon_sha256": "3c8fb805805e1d3257cc40b6cae1a8c75677b5ccea7ca47117409af94e376eaa"
  },
  "schema_version": "1.0",
  "source": {
    "id": "2607.15534",
    "kind": "arxiv",
    "version": 1
  }
}