Pith Number

pith:A7LOSMXO

pith:2019:A7LOSMXO7L67OM5RRYWJG2VOAW

not attested not anchored not stored refs pending

A Novel Synchronous Reference Frame Frequency-Locked Loop

Alex Q. Huang, Qinran Hu, Xiangjun Quan, Xiaobo Dou, Zaijun Wu

arxiv:1908.08669 v3 · 2019-08-23 · eess.SY · cs.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{A7LOSMXO7L67OM5RRYWJG2VOAW}

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	2026-07-05T00:07:24.512215Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

07d6e932eefafdf733b18e2c936aae0583d42822f442b19dbbb6c496e1f1dfef

Aliases

arxiv: 1908.08669 · arxiv_version: 1908.08669v3 · doi: 10.48550/arxiv.1908.08669 · pith_short_12: A7LOSMXO7L67 · pith_short_16: A7LOSMXO7L67OM5R · pith_short_8: A7LOSMXO

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/A7LOSMXO7L67OM5RRYWJG2VOAW \
  | 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: 07d6e932eefafdf733b18e2c936aae0583d42822f442b19dbbb6c496e1f1dfef

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "74c0ed1c45d77c1d35e402b88babefe8d02dc46681241b416762d6c2bcf82772",
    "cross_cats_sorted": [
      "cs.SY"
    ],
    "license": "http://arxiv.org/licenses/nonexclusive-distrib/1.0/",
    "primary_cat": "eess.SY",
    "submitted_at": "2019-08-23T05:21:13Z",
    "title_canon_sha256": "b8a454b92cb037ee0a69e1ecdf991e835af808e84529b061a61ffaeb55645d1b"
  },
  "schema_version": "1.0",
  "source": {
    "id": "1908.08669",
    "kind": "arxiv",
    "version": 3
  }
}