Pith Number

pith:PQUEYVJS

pith:2022:PQUEYVJSNIBDR42YWWUFQ4SV6E

not attested not anchored not stored refs pending

The mpEDMD Algorithm for Data-Driven Computations of Measure-Preserving Dynamical Systems

Matthew J. Colbrook

arxiv:2209.02244 v1 · 2022-09-06 · math.NA · cs.LG · cs.NA · math.DS · math.OC · math.SP

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

Add to your LaTeX paper

\usepackage{pith}
\pithnumber{PQUEYVJSNIBDR42YWWUFQ4SV6E}

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

Sampling pseudospectrum for data-driven matrices

Receipt and verification

First computed	2026-07-05T04:55:08.956849Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

7c284c55326a0238f358b5a8587255f1231faad32fdde95cb5b96f98447abf16

Aliases

arxiv: 2209.02244 · arxiv_version: 2209.02244v1 · doi: 10.48550/arxiv.2209.02244 · pith_short_12: PQUEYVJSNIBD · pith_short_16: PQUEYVJSNIBDR42Y · pith_short_8: PQUEYVJS

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/PQUEYVJSNIBDR42YWWUFQ4SV6E \
  | 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: 7c284c55326a0238f358b5a8587255f1231faad32fdde95cb5b96f98447abf16

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "06ca78a3c2c375924bb8a856910fd76e3cf7e1b372621c1bffeb9bc24d6b0388",
    "cross_cats_sorted": [
      "cs.LG",
      "cs.NA",
      "math.DS",
      "math.OC",
      "math.SP"
    ],
    "license": "http://arxiv.org/licenses/nonexclusive-distrib/1.0/",
    "primary_cat": "math.NA",
    "submitted_at": "2022-09-06T06:37:54Z",
    "title_canon_sha256": "88bf6e2cd8cdb792a3573675aedd8fadbef915e2335a509b69f99e27b3c607f9"
  },
  "schema_version": "1.0",
  "source": {
    "id": "2209.02244",
    "kind": "arxiv",
    "version": 1
  }
}