Pith Number

pith:P5SWWLAT

pith:2021:P5SWWLATEI2JBNIH6BIJ2QQBIC

not attested not anchored not stored refs pending

Port-Hamiltonian System Identification from Noisy Frequency Response Data

Paul Schwerdtner

arxiv:2106.11355 v1 · 2021-06-21 · eess.SY · cs.SY · 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{P5SWWLATEI2JBNIH6BIJ2QQBIC}

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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

Kernel-based identification of nonlinear port-Hamiltonian systems

Receipt and verification

First computed	2026-07-05T02:51:28.442932Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

7f656b2c13223490b507f0509d42014095028d26a1fb3fb200c7aab49e0069a0

Aliases

arxiv: 2106.11355 · arxiv_version: 2106.11355v1 · doi: 10.48550/arxiv.2106.11355 · pith_short_12: P5SWWLATEI2J · pith_short_16: P5SWWLATEI2JBNIH · pith_short_8: P5SWWLAT

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/P5SWWLATEI2JBNIH6BIJ2QQBIC \
  | 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: 7f656b2c13223490b507f0509d42014095028d26a1fb3fb200c7aab49e0069a0

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "91ca38e6e9eb2eae580428127c3529d73e28ad0cdb7a9bc00e5c5916da418e41",
    "cross_cats_sorted": [
      "cs.SY",
      "math.DS"
    ],
    "license": "http://arxiv.org/licenses/nonexclusive-distrib/1.0/",
    "primary_cat": "eess.SY",
    "submitted_at": "2021-06-21T18:38:56Z",
    "title_canon_sha256": "ba1df2fb314d39536a2612d4b35eafd6ddbba2e266a140bfe3263956bbaddae0"
  },
  "schema_version": "1.0",
  "source": {
    "id": "2106.11355",
    "kind": "arxiv",
    "version": 1
  }
}