Pith Number

pith:FPBQY4VS

pith:2018:FPBQY4VS4NYJ54JCLILHJNEFEU

not attested not anchored not stored refs pending

Dimensionality Reduction for Stationary Time Series via Stochastic Nonconvex Optimization

Lin Yang, Mengdi Wang, Minshuo Chen, Tuo Zhao

arxiv:1803.02312 v4 · 2018-03-06 · cs.LG · math.OC · stat.ML

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

Add to your LaTeX paper

\usepackage{pith}
\pithnumber{FPBQY4VS4NYJ54JCLILHJNEFEU}

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	2026-05-18T00:04:30.238799Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

2bc30c72b2e3709ef1225a1674b48525217d36709533407d3318065882dcaa76

Aliases

arxiv: 1803.02312 · arxiv_version: 1803.02312v4 · doi: 10.48550/arxiv.1803.02312 · pith_short_12: FPBQY4VS4NYJ · pith_short_16: FPBQY4VS4NYJ54JC · pith_short_8: FPBQY4VS

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/FPBQY4VS4NYJ54JCLILHJNEFEU \
  | 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: 2bc30c72b2e3709ef1225a1674b48525217d36709533407d3318065882dcaa76

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "77443bc0596bb4ff39218ee7442746bb816c85d8f346685adfc6080b4a22e32a",
    "cross_cats_sorted": [
      "math.OC",
      "stat.ML"
    ],
    "license": "http://arxiv.org/licenses/nonexclusive-distrib/1.0/",
    "primary_cat": "cs.LG",
    "submitted_at": "2018-03-06T17:38:03Z",
    "title_canon_sha256": "39388ffdc9d30951c1f4e7ec1f8cf81cd932514e422d25ec952e276e5ec04421"
  },
  "schema_version": "1.0",
  "source": {
    "id": "1803.02312",
    "kind": "arxiv",
    "version": 4
  }
}