Pith Number

pith:RKTDPDZO

pith:2020:RKTDPDZOLGQ3LTKK4RD4PEVBGD

not attested not anchored not stored refs pending

From Fourier to Koopman: Spectral Methods for Long-term Time Series Prediction

Henning Lange, Nathan Kutz, Steven L. Brunton

arxiv:2004.00574 v1 · 2020-04-01 · cs.LG · eess.SP · 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{RKTDPDZOLGQ3LTKK4RD4PEVBGD}

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.

Cited by

1 paper in Pith

Flow map learning in nonlinear vector autoregressive models: influence of the feature-library structure on the training error

Receipt and verification

First computed	2026-07-05T00:52:11.941956Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

8aa6378f2e59a1b5cd4ae447c792a130c3c710c8a1f02ef578d642d274b27da3

Aliases

arxiv: 2004.00574 · arxiv_version: 2004.00574v1 · doi: 10.48550/arxiv.2004.00574 · pith_short_12: RKTDPDZOLGQ3 · pith_short_16: RKTDPDZOLGQ3LTKK · pith_short_8: RKTDPDZO

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/RKTDPDZOLGQ3LTKK4RD4PEVBGD \
  | 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: 8aa6378f2e59a1b5cd4ae447c792a130c3c710c8a1f02ef578d642d274b27da3

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "40b142ae5aeb65bf3e0feb877bcd1781ae887c77a87e8006beb7ff81cb0409e6",
    "cross_cats_sorted": [
      "eess.SP",
      "stat.ML"
    ],
    "license": "http://arxiv.org/licenses/nonexclusive-distrib/1.0/",
    "primary_cat": "cs.LG",
    "submitted_at": "2020-04-01T17:04:02Z",
    "title_canon_sha256": "d7501da2946bd21b2276d9560dfbb8eeff5473959c6aef1be71b418994a92c56"
  },
  "schema_version": "1.0",
  "source": {
    "id": "2004.00574",
    "kind": "arxiv",
    "version": 1
  }
}