Pith Number

pith:IFGSCCZJ

pith:2026:IFGSCCZJPQZXVEJ225RNDDLDFV

not attested not anchored not stored refs pending

Residual-Guided Dictionary Learning for Spectrally Accurate Koopman Approximation

George Coote, Matthew J. Colbrook

arxiv:2606.29083 v1 · 2026-06-27 · math.NA · cs.LG · cs.NA · math.DS

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

Add to your LaTeX paper

\usepackage{pith}
\pithnumber{IFGSCCZJPQZXVEJ225RNDDLDFV}

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	2026-06-30T01:17:52.078928Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

414d210b297c337a913ad762d18d632d56eb25f8f83b4a960ea9b6cd6973a640

Aliases

arxiv: 2606.29083 · arxiv_version: 2606.29083v1 · doi: 10.48550/arxiv.2606.29083 · pith_short_12: IFGSCCZJPQZX · pith_short_16: IFGSCCZJPQZXVEJ2 · pith_short_8: IFGSCCZJ

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/IFGSCCZJPQZXVEJ225RNDDLDFV \
  | 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: 414d210b297c337a913ad762d18d632d56eb25f8f83b4a960ea9b6cd6973a640

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "4b174a307ae629f569aadc47ceae31a0189491d61ddd1c205e80337c4e887b40",
    "cross_cats_sorted": [
      "cs.LG",
      "cs.NA",
      "math.DS"
    ],
    "license": "http://arxiv.org/licenses/nonexclusive-distrib/1.0/",
    "primary_cat": "math.NA",
    "submitted_at": "2026-06-27T20:53:18Z",
    "title_canon_sha256": "62667d51c924c2e5a25c1d27925a821a376ed10ecfafb5bc22f72ed8870f27ac"
  },
  "schema_version": "1.0",
  "source": {
    "id": "2606.29083",
    "kind": "arxiv",
    "version": 1
  }
}