Pith Number

pith:M44LM4JU

pith:2026:M44LM4JUVASZDQOMWZCW7CBC64

not attested not anchored not stored refs pending

Performance Characterization of Frequency-Selective Wireless Power Transfer Toward Scalable Untethered Magnetic Actuation

Gabriel Cooper, Xiaolong Liu

The number of untethered magnetic actuators that can be independently controlled by frequency-selective wireless power transfer scales primarily with resonator Q-factor.

arxiv:2604.11645 v2 · 2026-04-13 · eess.SY · cs.RO · cs.SY

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\usepackage{pith}
\pithnumber{M44LM4JUVASZDQOMWZCW7CBC64}

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Record completeness

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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.

Claims

C1strongest claim

We theoretically proved and experimentally demonstrated that scalability depends primarily on the Q-factor. For this proof-of-concept study, we define effective series resistance as a function of frequency allocating bandwidths to discrete actuators.

C2weakest assumption

That defining effective series resistance as a function of frequency cleanly allocates non-overlapping bandwidths to each actuator without unintended cross-triggering or unmodeled losses dominating at scale.

C3one line summary

Scalability of frequency-selective wireless power transfer for untethered magnetic actuation depends primarily on resonator Q-factor, with theoretical relation and experimental validation using three independent actuators at distinct frequencies.

Receipt and verification

First computed	2026-07-14T01:20:02.405511Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

6738b67134a82591c1ccb6456f8822f71a80ec300403470227201d1b1734244f

Aliases

arxiv: 2604.11645 · arxiv_version: 2604.11645v2 · doi: 10.48550/arxiv.2604.11645 · pith_short_12: M44LM4JUVASZ · pith_short_16: M44LM4JUVASZDQOM · pith_short_8: M44LM4JU

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/M44LM4JUVASZDQOMWZCW7CBC64 \
  | 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: 6738b67134a82591c1ccb6456f8822f71a80ec300403470227201d1b1734244f

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "89dd4ffd05ddd953722e24639d86c64f3e5094d4df45001759233b6bba261498",
    "cross_cats_sorted": [
      "cs.RO",
      "cs.SY"
    ],
    "license": "http://arxiv.org/licenses/nonexclusive-distrib/1.0/",
    "primary_cat": "eess.SY",
    "submitted_at": "2026-04-13T15:57:20Z",
    "title_canon_sha256": "5a443a40f3aea1ea208c546d12223eb9978e4d638e4ef95fcd0764fbe96ae94d"
  },
  "schema_version": "1.0",
  "source": {
    "id": "2604.11645",
    "kind": "arxiv",
    "version": 2
  }
}