{"bundle_type":"pith_open_graph_bundle","bundle_version":"1.0","pith_number":"pith:2026:JGH4B46QDUK7NALRTLWZHSQ7ZW","short_pith_number":"pith:JGH4B46Q","canonical_record":{"source":{"id":"2605.23752","kind":"arxiv","version":1},"metadata":{"license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"physics.optics","submitted_at":"2026-05-22T15:24:10Z","cross_cats_sorted":[],"title_canon_sha256":"ad245b7b679c07151b1cc6e1080a032b79dca634800e58cb43e92bc4fa14274d","abstract_canon_sha256":"305d7bf1ed3a11c032efcca61b74e134f8027743097161c0f1f87b8eb2671ecc"},"schema_version":"1.0"},"canonical_sha256":"498fc0f3d01d15f681719aed93ca1fcdab97dc1561782fd32353f92600034ad8","source":{"kind":"arxiv","id":"2605.23752","version":1},"source_aliases":[{"alias_kind":"arxiv","alias_value":"2605.23752","created_at":"2026-05-25T02:02:30Z"},{"alias_kind":"arxiv_version","alias_value":"2605.23752v1","created_at":"2026-05-25T02:02:30Z"},{"alias_kind":"doi","alias_value":"10.48550/arxiv.2605.23752","created_at":"2026-05-25T02:02:30Z"},{"alias_kind":"pith_short_12","alias_value":"JGH4B46QDUK7","created_at":"2026-05-25T02:02:30Z"},{"alias_kind":"pith_short_16","alias_value":"JGH4B46QDUK7NALR","created_at":"2026-05-25T02:02:30Z"},{"alias_kind":"pith_short_8","alias_value":"JGH4B46Q","created_at":"2026-05-25T02:02:30Z"}],"events":[{"event_type":"record_created","subject_pith_number":"pith:2026:JGH4B46QDUK7NALRTLWZHSQ7ZW","target":"record","payload":{"canonical_record":{"source":{"id":"2605.23752","kind":"arxiv","version":1},"metadata":{"license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"physics.optics","submitted_at":"2026-05-22T15:24:10Z","cross_cats_sorted":[],"title_canon_sha256":"ad245b7b679c07151b1cc6e1080a032b79dca634800e58cb43e92bc4fa14274d","abstract_canon_sha256":"305d7bf1ed3a11c032efcca61b74e134f8027743097161c0f1f87b8eb2671ecc"},"schema_version":"1.0"},"canonical_sha256":"498fc0f3d01d15f681719aed93ca1fcdab97dc1561782fd32353f92600034ad8","receipt":{"kind":"pith_receipt","key_id":"pith-v1-2026-05","algorithm":"ed25519","signed_at":"2026-05-25T02:02:30.545340Z","signature_b64":"fIL1Yg8GjDQPtTfikSTuL6f1dTgFWbTqpWz1Y84oFOhvuTtEAhD4QwiNql5MSRxxmuvVyU2sxq6r3Zzb37wbAg==","signed_message":"canonical_sha256_bytes","builder_version":"pith-number-builder-2026-05-17-v1","receipt_version":"0.3","canonical_sha256":"498fc0f3d01d15f681719aed93ca1fcdab97dc1561782fd32353f92600034ad8","last_reissued_at":"2026-05-25T02:02:30.544518Z","signature_status":"signed_v1","first_computed_at":"2026-05-25T02:02:30.544518Z","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54"},"source_kind":"arxiv","source_id":"2605.23752","source_version":1,"attestation_state":"computed"},"signer":{"signer_id":"pith.science","signer_type":"pith_registry","key_id":"pith-v1-2026-05","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54"},"created_at":"2026-05-25T02:02:30Z","supersedes":[],"prev_event":null,"signature":{"signature_status":"signed_v1","algorithm":"ed25519","key_id":"pith-v1-2026-05","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54","signature_b64":"lfVP8WTObf1zwhcIc8ekDN1uNjZx4GWBHeK1hSmrTz8DKXUoKDphWgZkIZbamgibDJQvr05+eY6OB4M4s6z8Ag==","signed_message":"open_graph_event_sha256_bytes","signed_at":"2026-06-11T00:06:36.887407Z"},"content_sha256":"d97ad763517947ad8c8807450cb06c61d52513c036894955413e21f64a8ddaf3","schema_version":"1.0","event_id":"sha256:d97ad763517947ad8c8807450cb06c61d52513c036894955413e21f64a8ddaf3"},{"event_type":"graph_snapshot","subject_pith_number":"pith:2026:JGH4B46QDUK7NALRTLWZHSQ7ZW","target":"graph","payload":{"graph_snapshot":{"paper":{"title":"Development of EAP-based actuators for high-frequency adaptive optics system","license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","headline":"","cross_cats":[],"primary_cat":"physics.optics","authors_text":"A. Michel (LGEF), CIRIMAT), C. Richard (LGEF), D. Audigier (LGEF), J.-F. Capsal (Piezotech SAS, LGEF","submitted_at":"2026-05-22T15:24:10Z","abstract_excerpt":"The present work aims to enhance the electrostrictive strain of the P(VDF-TrFE-CFE) terpolymer for use in adaptive optics, specifically in deformable mirror actuation. In the context of the FlexSiMirror project, these systems seek to operate under alternating electric fields of up to 50 V/um and within the kilohertz (kHz) frequency range, thereby framing the ranges of characterization considered in this study. To achieve greater strains, the incorporation of a polymeric plasticizer up to 20 vol.% and its impact on the actuation strain performance was studied. Hence, the relevance of this appro"},"claims":{"count":0,"items":[],"snapshot_sha256":"258153158e38e3291e3d48162225fcdb2d5a3ed65a07baac614ab91432fd4f57"},"source":{"id":"2605.23752","kind":"arxiv","version":1},"verdict":{"id":null,"model_set":{},"created_at":null,"strongest_claim":"","one_line_summary":"","pipeline_version":null,"weakest_assumption":"","pith_extraction_headline":""},"integrity":{"clean":true,"summary":{"advisory":0,"critical":0,"by_detector":{},"informational":0},"endpoint":"/pith/2605.23752/integrity.json","findings":[],"available":true,"detectors_run":[],"snapshot_sha256":"c28c3603d3b5d939e8dc4c7e95fa8dfce3d595e45f758748cecf8e644a296938"},"references":{"count":0,"sample":[],"resolved_work":0,"snapshot_sha256":"258153158e38e3291e3d48162225fcdb2d5a3ed65a07baac614ab91432fd4f57","internal_anchors":0},"formal_canon":{"evidence_count":0,"snapshot_sha256":"258153158e38e3291e3d48162225fcdb2d5a3ed65a07baac614ab91432fd4f57"},"author_claims":{"count":0,"strong_count":0,"snapshot_sha256":"258153158e38e3291e3d48162225fcdb2d5a3ed65a07baac614ab91432fd4f57"},"builder_version":"pith-number-builder-2026-05-17-v1"},"verdict_id":null},"signer":{"signer_id":"pith.science","signer_type":"pith_registry","key_id":"pith-v1-2026-05","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54"},"created_at":"2026-05-25T02:02:30Z","supersedes":[],"prev_event":null,"signature":{"signature_status":"signed_v1","algorithm":"ed25519","key_id":"pith-v1-2026-05","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54","signature_b64":"1p6Y+oSr9oPQNywOSdngrJ63oBsTu7nKntm3YYg8gzC3Y0gzdMfWBCjVu81lQTxbbLw5doAC8uRkHhyc50D5Cw==","signed_message":"open_graph_event_sha256_bytes","signed_at":"2026-06-11T00:06:36.888132Z"},"content_sha256":"2ae67c209d52d5ee0c22d61b829946594f6c174eb0157b981b4ce55399549c3e","schema_version":"1.0","event_id":"sha256:2ae67c209d52d5ee0c22d61b829946594f6c174eb0157b981b4ce55399549c3e"}],"timestamp_proofs":[],"mirror_hints":[{"mirror_type":"https","name":"Pith Resolver","base_url":"https://pith.science","bundle_url":"https://pith.science/pith/JGH4B46QDUK7NALRTLWZHSQ7ZW/bundle.json","state_url":"https://pith.science/pith/JGH4B46QDUK7NALRTLWZHSQ7ZW/state.json","well_known_bundle_url":"https://pith.science/.well-known/pith/JGH4B46QDUK7NALRTLWZHSQ7ZW/bundle.json","status":"primary"}],"public_keys":[{"key_id":"pith-v1-2026-05","algorithm":"ed25519","format":"raw","public_key_b64":"stVStoiQhXFxp4s2pdzPNoqVNBMojDU/fJ2db5S3CbM=","public_key_hex":"b2d552b68890857171a78b36a5dccf368a953413288c353f7c9d9d6f94b709b3","fingerprint_sha256_b32_first128bits":"RVFV5Z2OI2J3ZUO7ERDEBCYNKS","fingerprint_sha256_hex":"8d4b5ee74e4693bcd1df2446408b0d54","rotates_at":null,"url":"https://pith.science/pith-signing-key.json","notes":"Pith uses this Ed25519 key to sign canonical record SHA-256 digests. Verify with: ed25519_verify(public_key, message=canonical_sha256_bytes, signature=base64decode(signature_b64))."}],"merge_version":"pith-open-graph-merge-v1","built_at":"2026-06-11T00:06:36Z","links":{"resolver":"https://pith.science/pith/JGH4B46QDUK7NALRTLWZHSQ7ZW","bundle":"https://pith.science/pith/JGH4B46QDUK7NALRTLWZHSQ7ZW/bundle.json","state":"https://pith.science/pith/JGH4B46QDUK7NALRTLWZHSQ7ZW/state.json","well_known_bundle":"https://pith.science/.well-known/pith/JGH4B46QDUK7NALRTLWZHSQ7ZW/bundle.json"},"state":{"state_type":"pith_open_graph_state","state_version":"1.0","pith_number":"pith:2026:JGH4B46QDUK7NALRTLWZHSQ7ZW","merge_version":"pith-open-graph-merge-v1","event_count":2,"valid_event_count":2,"invalid_event_count":0,"equivocation_count":0,"current":{"canonical_record":{"metadata":{"abstract_canon_sha256":"305d7bf1ed3a11c032efcca61b74e134f8027743097161c0f1f87b8eb2671ecc","cross_cats_sorted":[],"license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"physics.optics","submitted_at":"2026-05-22T15:24:10Z","title_canon_sha256":"ad245b7b679c07151b1cc6e1080a032b79dca634800e58cb43e92bc4fa14274d"},"schema_version":"1.0","source":{"id":"2605.23752","kind":"arxiv","version":1}},"source_aliases":[{"alias_kind":"arxiv","alias_value":"2605.23752","created_at":"2026-05-25T02:02:30Z"},{"alias_kind":"arxiv_version","alias_value":"2605.23752v1","created_at":"2026-05-25T02:02:30Z"},{"alias_kind":"doi","alias_value":"10.48550/arxiv.2605.23752","created_at":"2026-05-25T02:02:30Z"},{"alias_kind":"pith_short_12","alias_value":"JGH4B46QDUK7","created_at":"2026-05-25T02:02:30Z"},{"alias_kind":"pith_short_16","alias_value":"JGH4B46QDUK7NALR","created_at":"2026-05-25T02:02:30Z"},{"alias_kind":"pith_short_8","alias_value":"JGH4B46Q","created_at":"2026-05-25T02:02:30Z"}],"graph_snapshots":[{"event_id":"sha256:2ae67c209d52d5ee0c22d61b829946594f6c174eb0157b981b4ce55399549c3e","target":"graph","created_at":"2026-05-25T02:02:30Z","signer":{"key_id":"pith-v1-2026-05","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54","signer_id":"pith.science","signer_type":"pith_registry"},"payload":{"graph_snapshot":{"author_claims":{"count":0,"snapshot_sha256":"258153158e38e3291e3d48162225fcdb2d5a3ed65a07baac614ab91432fd4f57","strong_count":0},"builder_version":"pith-number-builder-2026-05-17-v1","claims":{"count":0,"items":[],"snapshot_sha256":"258153158e38e3291e3d48162225fcdb2d5a3ed65a07baac614ab91432fd4f57"},"formal_canon":{"evidence_count":0,"snapshot_sha256":"258153158e38e3291e3d48162225fcdb2d5a3ed65a07baac614ab91432fd4f57"},"integrity":{"available":true,"clean":true,"detectors_run":[],"endpoint":"/pith/2605.23752/integrity.json","findings":[],"snapshot_sha256":"c28c3603d3b5d939e8dc4c7e95fa8dfce3d595e45f758748cecf8e644a296938","summary":{"advisory":0,"by_detector":{},"critical":0,"informational":0}},"paper":{"abstract_excerpt":"The present work aims to enhance the electrostrictive strain of the P(VDF-TrFE-CFE) terpolymer for use in adaptive optics, specifically in deformable mirror actuation. In the context of the FlexSiMirror project, these systems seek to operate under alternating electric fields of up to 50 V/um and within the kilohertz (kHz) frequency range, thereby framing the ranges of characterization considered in this study. To achieve greater strains, the incorporation of a polymeric plasticizer up to 20 vol.% and its impact on the actuation strain performance was studied. Hence, the relevance of this appro","authors_text":"A. Michel (LGEF), CIRIMAT), C. Richard (LGEF), D. Audigier (LGEF), J.-F. Capsal (Piezotech SAS, LGEF","cross_cats":[],"headline":"","license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"physics.optics","submitted_at":"2026-05-22T15:24:10Z","title":"Development of EAP-based actuators for high-frequency adaptive optics system"},"references":{"count":0,"internal_anchors":0,"resolved_work":0,"sample":[],"snapshot_sha256":"258153158e38e3291e3d48162225fcdb2d5a3ed65a07baac614ab91432fd4f57"},"source":{"id":"2605.23752","kind":"arxiv","version":1},"verdict":{"created_at":null,"id":null,"model_set":{},"one_line_summary":"","pipeline_version":null,"pith_extraction_headline":"","strongest_claim":"","weakest_assumption":""}},"verdict_id":null}}],"author_attestations":[],"timestamp_anchors":[],"storage_attestations":[],"citation_signatures":[],"replication_records":[],"corrections":[],"mirror_hints":[],"record_created":{"event_id":"sha256:d97ad763517947ad8c8807450cb06c61d52513c036894955413e21f64a8ddaf3","target":"record","created_at":"2026-05-25T02:02:30Z","signer":{"key_id":"pith-v1-2026-05","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54","signer_id":"pith.science","signer_type":"pith_registry"},"payload":{"attestation_state":"computed","canonical_record":{"metadata":{"abstract_canon_sha256":"305d7bf1ed3a11c032efcca61b74e134f8027743097161c0f1f87b8eb2671ecc","cross_cats_sorted":[],"license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"physics.optics","submitted_at":"2026-05-22T15:24:10Z","title_canon_sha256":"ad245b7b679c07151b1cc6e1080a032b79dca634800e58cb43e92bc4fa14274d"},"schema_version":"1.0","source":{"id":"2605.23752","kind":"arxiv","version":1}},"canonical_sha256":"498fc0f3d01d15f681719aed93ca1fcdab97dc1561782fd32353f92600034ad8","receipt":{"algorithm":"ed25519","builder_version":"pith-number-builder-2026-05-17-v1","canonical_sha256":"498fc0f3d01d15f681719aed93ca1fcdab97dc1561782fd32353f92600034ad8","first_computed_at":"2026-05-25T02:02:30.544518Z","key_id":"pith-v1-2026-05","kind":"pith_receipt","last_reissued_at":"2026-05-25T02:02:30.544518Z","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54","receipt_version":"0.3","signature_b64":"fIL1Yg8GjDQPtTfikSTuL6f1dTgFWbTqpWz1Y84oFOhvuTtEAhD4QwiNql5MSRxxmuvVyU2sxq6r3Zzb37wbAg==","signature_status":"signed_v1","signed_at":"2026-05-25T02:02:30.545340Z","signed_message":"canonical_sha256_bytes"},"source_id":"2605.23752","source_kind":"arxiv","source_version":1}}},"equivocations":[],"invalid_events":[],"applied_event_ids":["sha256:d97ad763517947ad8c8807450cb06c61d52513c036894955413e21f64a8ddaf3","sha256:2ae67c209d52d5ee0c22d61b829946594f6c174eb0157b981b4ce55399549c3e"],"state_sha256":"9a7507be618b38c188152c358aa0c81b3f149d3e52c34f9f61259ca8a2e6da4d"},"bundle_signature":{"signature_status":"signed_v1","algorithm":"ed25519","key_id":"pith-v1-2026-05","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54","signature_b64":"tBLc20vx6E95sndv4e7yrD3RxQVQ50AG906YRdf/QGmbNyoGEd4vL62qK3+YyJ7QpIYfK8Xp6LQQS2Fu25HSCg==","signed_message":"bundle_sha256_bytes","signed_at":"2026-06-11T00:06:36.891805Z","bundle_sha256":"1b4ec6856f698504d9d439c511736c2aaf00c61cd33734423fe51d9e8cfe0b81"}}