Pith Number

pith:PGUHEKWP

pith:2020:PGUHEKWPSWULVVTDI2ZMZQDUAB

not attested not anchored not stored refs pending

48 channels 100-GHz tunable laser by integrating 16 DFB lasers with high wavelength-spacing uniformity

Jilin Zheng, Jun Lu, Rulei Xiao, Xiangfei Chen, Yi-Jen Chiu, Yinchao Du, Yuechun Shi, Yunshan Zhang, Zhao Chen, Zhenxing Sun, Zhirui Su, Zijiang Yang

arxiv:2001.01178 v1 · 2020-01-05 · physics.app-ph · 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{PGUHEKWPSWULVVTDI2ZMZQDUAB}

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	2026-07-05T00:29:44.706407Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

79a8722acf95a8bad66346b2ccc074006deb40124df52daa1f000adf5087c2ff

Aliases

arxiv: 2001.01178 · arxiv_version: 2001.01178v1 · doi: 10.48550/arxiv.2001.01178 · pith_short_12: PGUHEKWPSWUL · pith_short_16: PGUHEKWPSWULVVTD · pith_short_8: PGUHEKWP

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/PGUHEKWPSWULVVTDI2ZMZQDUAB \
  | 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: 79a8722acf95a8bad66346b2ccc074006deb40124df52daa1f000adf5087c2ff

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "1460ad58283aa9d81de001d4cd9098a78cc03c97eb2802309f8f50ca82be0085",
    "cross_cats_sorted": [
      "physics.optics"
    ],
    "license": "http://arxiv.org/licenses/nonexclusive-distrib/1.0/",
    "primary_cat": "physics.app-ph",
    "submitted_at": "2020-01-05T07:03:07Z",
    "title_canon_sha256": "46ca14038182763e3b7900ff4644b405af5470491f3a3309325ef40fa05e78ad"
  },
  "schema_version": "1.0",
  "source": {
    "id": "2001.01178",
    "kind": "arxiv",
    "version": 1
  }
}