{"bundle_type":"pith_open_graph_bundle","bundle_version":"1.0","pith_number":"pith:2026:ZKNRFZTCA6FCNF3W3RKJ6Z7B5D","short_pith_number":"pith:ZKNRFZTC","canonical_record":{"source":{"id":"2603.20106","kind":"arxiv","version":2},"metadata":{"license":"http://creativecommons.org/licenses/by/4.0/","primary_cat":"cond-mat.mes-hall","submitted_at":"2026-03-20T16:30:15Z","cross_cats_sorted":["cond-mat.stat-mech","physics.comp-ph","quant-ph"],"title_canon_sha256":"b16e869988c98abf6b6b51809ee971fc3c355a80b94d7f63c19a59a9edb2b542","abstract_canon_sha256":"ee2d608733654d0cf7cce8c9e2f8f2044799299afe51ae236bc9287f68d35402"},"schema_version":"1.0"},"canonical_sha256":"ca9b12e662078a269776dc549f67e1e8d4fb06408f2db4157085fdef2d0d0a12","source":{"kind":"arxiv","id":"2603.20106","version":2},"source_aliases":[{"alias_kind":"arxiv","alias_value":"2603.20106","created_at":"2026-08-04T01:52:34Z"},{"alias_kind":"arxiv_version","alias_value":"2603.20106v2","created_at":"2026-08-04T01:52:34Z"},{"alias_kind":"doi","alias_value":"10.48550/arxiv.2603.20106","created_at":"2026-08-04T01:52:34Z"},{"alias_kind":"pith_short_12","alias_value":"ZKNRFZTCA6FC","created_at":"2026-08-04T01:52:34Z"},{"alias_kind":"pith_short_16","alias_value":"ZKNRFZTCA6FCNF3W","created_at":"2026-08-04T01:52:34Z"},{"alias_kind":"pith_short_8","alias_value":"ZKNRFZTC","created_at":"2026-08-04T01:52:34Z"}],"events":[{"event_type":"record_created","subject_pith_number":"pith:2026:ZKNRFZTCA6FCNF3W3RKJ6Z7B5D","target":"record","payload":{"canonical_record":{"source":{"id":"2603.20106","kind":"arxiv","version":2},"metadata":{"license":"http://creativecommons.org/licenses/by/4.0/","primary_cat":"cond-mat.mes-hall","submitted_at":"2026-03-20T16:30:15Z","cross_cats_sorted":["cond-mat.stat-mech","physics.comp-ph","quant-ph"],"title_canon_sha256":"b16e869988c98abf6b6b51809ee971fc3c355a80b94d7f63c19a59a9edb2b542","abstract_canon_sha256":"ee2d608733654d0cf7cce8c9e2f8f2044799299afe51ae236bc9287f68d35402"},"schema_version":"1.0"},"canonical_sha256":"ca9b12e662078a269776dc549f67e1e8d4fb06408f2db4157085fdef2d0d0a12","receipt":{"kind":"pith_receipt","key_id":"pith-v1-2026-05","algorithm":"ed25519","signed_at":"2026-08-04T01:52:34.943973Z","signature_b64":"WAmu0w7M0tVGJbILpvDC2J/h/WEOlJFPghXVNzpTiwbAl4jSafNoEI1z9oGuYG4oVnzsC3s4zEb+WnYdxZEsAw==","signed_message":"canonical_sha256_bytes","builder_version":"pith-number-builder-2026-05-17-v1","receipt_version":"0.3","canonical_sha256":"ca9b12e662078a269776dc549f67e1e8d4fb06408f2db4157085fdef2d0d0a12","last_reissued_at":"2026-08-04T01:52:34.942346Z","signature_status":"signed_v1","first_computed_at":"2026-08-04T01:52:34.942346Z","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54"},"source_kind":"arxiv","source_id":"2603.20106","source_version":2,"attestation_state":"computed"},"signer":{"signer_id":"pith.science","signer_type":"pith_registry","key_id":"pith-v1-2026-05","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54"},"created_at":"2026-08-04T01:52:34Z","supersedes":[],"prev_event":null,"signature":{"signature_status":"signed_v1","algorithm":"ed25519","key_id":"pith-v1-2026-05","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54","signature_b64":"CiM6P8lXK/La/M19HQAOu9g6rJCSnc417s4GhG5kVimC/Kqgi3W7fVBeuLOKDIXsEvWH6jjLr16xPcBTaQB8CQ==","signed_message":"open_graph_event_sha256_bytes","signed_at":"2026-08-06T03:46:45.673572Z"},"content_sha256":"3938f692c852aff38edb94f9024c17d47a57cf97c6dfbfcd4debd74b6b843d59","schema_version":"1.0","event_id":"sha256:3938f692c852aff38edb94f9024c17d47a57cf97c6dfbfcd4debd74b6b843d59"},{"event_type":"graph_snapshot","subject_pith_number":"pith:2026:ZKNRFZTCA6FCNF3W3RKJ6Z7B5D","target":"graph","payload":{"graph_snapshot":{"paper":{"title":"Micromagnetic Modeling of Surface Acoustic Wave Driven Dynamics: Interplay of Strain, Magnetorotation, and Magnetic Anisotropy","license":"http://creativecommons.org/licenses/by/4.0/","headline":"Anisotropy orientation tunes the resonant coupling between surface acoustic waves and spin waves in parallel geometry.","cross_cats":["cond-mat.stat-mech","physics.comp-ph","quant-ph"],"primary_cat":"cond-mat.mes-hall","authors_text":"Daniel Stoeffler, Florian Millo, Massimiliano Marangolo, Pauline Rovillain","submitted_at":"2026-03-20T16:30:15Z","abstract_excerpt":"We study the coupling mechanism of surface acoustic waves (SAW) with spin waves (SW) using micromagnetic analysis. The SAW magnetoacoustic excitation field is fully implemented, i.e., all strain and lattice-rotation terms are included. A realistic CoFeB film with a weak in-plane uniaxial anisotropy is considered. We investigate the conditions for efficient SAW--SW coupling, with particular emphasis on the case where the SAW propagates parallel to the external magnetic field, a configuration of special interest for magnonic applications. Remarkably, we find that the anisotropy orientation serve"},"claims":{"count":4,"items":[{"kind":"strongest_claim","text":"Remarkably, we find that the anisotropy orientation serves as a knob to tune the parallel resonant interaction.","source":"verdict.strongest_claim","status":"machine_extracted","claim_id":"C1","attestation":"unclaimed"},{"kind":"weakest_assumption","text":"The micromagnetic model with all strain and lattice-rotation terms fully implemented accurately captures the physical SAW-SW coupling in a realistic CoFeB film with weak in-plane uniaxial anisotropy.","source":"verdict.weakest_assumption","status":"machine_extracted","claim_id":"C2","attestation":"unclaimed"},{"kind":"one_line_summary","text":"Micromagnetic modeling shows that the orientation of weak in-plane uniaxial anisotropy can tune efficient resonant coupling between surface acoustic waves and spin waves even in the parallel propagation configuration.","source":"verdict.one_line_summary","status":"machine_extracted","claim_id":"C3","attestation":"unclaimed"},{"kind":"headline","text":"Anisotropy orientation tunes the resonant coupling between surface acoustic waves and spin waves in parallel geometry.","source":"verdict.pith_extraction.headline","status":"machine_extracted","claim_id":"C4","attestation":"unclaimed"}],"snapshot_sha256":"2f800f506f9b30439a3bbf89c38faf11607fe0817d129b104d2759b75ecefdc6"},"source":{"id":"2603.20106","kind":"arxiv","version":2},"verdict":{"id":"81153a0d-3275-48ac-a91a-a470849c0785","model_set":{"reader":"grok-4.3"},"created_at":"2026-05-15T08:02:50.140252Z","strongest_claim":"Remarkably, we find that the anisotropy orientation serves as a knob to tune the parallel resonant interaction.","one_line_summary":"Micromagnetic modeling shows that the orientation of weak in-plane uniaxial anisotropy can tune efficient resonant coupling between surface acoustic waves and spin waves even in the parallel propagation configuration.","pipeline_version":"pith-pipeline@v0.9.0","weakest_assumption":"The micromagnetic model with all strain and lattice-rotation terms fully implemented accurately captures the physical SAW-SW coupling in a realistic CoFeB film with weak in-plane uniaxial anisotropy.","pith_extraction_headline":"Anisotropy orientation tunes the resonant coupling between surface acoustic waves and spin waves in parallel geometry."},"integrity":{"clean":true,"summary":{"advisory":0,"critical":0,"by_detector":{},"informational":0},"endpoint":"/pith/2603.20106/integrity.json","findings":[],"available":true,"detectors_run":[],"snapshot_sha256":"c28c3603d3b5d939e8dc4c7e95fa8dfce3d595e45f758748cecf8e644a296938"},"references":{"count":37,"sample":[{"doi":"","year":1958,"title":"C. Kittel, Phys. Rev. 110, 1295 (1958)","work_id":"3779f3aa-9e19-47f5-a52c-a7b79ae4a5a4","ref_index":1,"cited_arxiv_id":"","is_internal_anchor":false},{"doi":"","year":1958,"title":"A. I. Akhiezer, V . G. B. Iakhtar, and S. V . Peletminskii, Soviet Physics JETP (1958)","work_id":"9c65dbf9-e6a8-48ab-b2a0-074adf77aa86","ref_index":2,"cited_arxiv_id":"","is_internal_anchor":false},{"doi":"","year":1964,"title":"H. F. Tiersten, Journal of Mathematical Physics 5, 1298 (1964)","work_id":"69e53ace-1dd0-4648-9a8d-542e6a4a716b","ref_index":3,"cited_arxiv_id":"","is_internal_anchor":false},{"doi":"","year":1959,"title":"H. Bömmel and K. Dransfeld, Phys. Rev. Lett. 3, 83 (1959)","work_id":"15f62ed0-69da-4eb1-9491-38fda4af101f","ref_index":4,"cited_arxiv_id":"","is_internal_anchor":false},{"doi":"","year":1973,"title":"T. Kobayashi, R. C. Barker, and A. Y elon,Phys. Rev. B 7, 3286 (1973)","work_id":"6d337a66-9eea-4090-b0ba-36f950cee6e8","ref_index":5,"cited_arxiv_id":"","is_internal_anchor":false}],"resolved_work":37,"snapshot_sha256":"52dc9343b9107be841a6ebe929a135d816224eb99dbdcffa4619eb2918acbe3a","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":"81153a0d-3275-48ac-a91a-a470849c0785"},"signer":{"signer_id":"pith.science","signer_type":"pith_registry","key_id":"pith-v1-2026-05","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54"},"created_at":"2026-08-04T01:52:34Z","supersedes":[],"prev_event":null,"signature":{"signature_status":"signed_v1","algorithm":"ed25519","key_id":"pith-v1-2026-05","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54","signature_b64":"TL8weVlDmSuHBfp3UxGz8w7oxkU1EkPOlm0gFoYlG533R36F4F85XsVpvZC1Nzz2nu48dE6fa5IdTbTM3zWcDQ==","signed_message":"open_graph_event_sha256_bytes","signed_at":"2026-08-06T03:46:45.675083Z"},"content_sha256":"7f979f695b9329b032c3477823820098357f0b3288bcc19cbb5f15426bda6994","schema_version":"1.0","event_id":"sha256:7f979f695b9329b032c3477823820098357f0b3288bcc19cbb5f15426bda6994"}],"timestamp_proofs":[],"mirror_hints":[{"mirror_type":"https","name":"Pith Resolver","base_url":"https://pith.science","bundle_url":"https://pith.science/pith/ZKNRFZTCA6FCNF3W3RKJ6Z7B5D/bundle.json","state_url":"https://pith.science/pith/ZKNRFZTCA6FCNF3W3RKJ6Z7B5D/state.json","well_known_bundle_url":"https://pith.science/.well-known/pith/ZKNRFZTCA6FCNF3W3RKJ6Z7B5D/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":"2026-08-06T03:46:45Z","links":{"resolver":"https://pith.science/pith/ZKNRFZTCA6FCNF3W3RKJ6Z7B5D","bundle":"https://pith.science/pith/ZKNRFZTCA6FCNF3W3RKJ6Z7B5D/bundle.json","state":"https://pith.science/pith/ZKNRFZTCA6FCNF3W3RKJ6Z7B5D/state.json","well_known_bundle":"https://pith.science/.well-known/pith/ZKNRFZTCA6FCNF3W3RKJ6Z7B5D/bundle.json"},"state":{"state_type":"pith_open_graph_state","state_version":"1.0","pith_number":"pith:2026:ZKNRFZTCA6FCNF3W3RKJ6Z7B5D","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":"ee2d608733654d0cf7cce8c9e2f8f2044799299afe51ae236bc9287f68d35402","cross_cats_sorted":["cond-mat.stat-mech","physics.comp-ph","quant-ph"],"license":"http://creativecommons.org/licenses/by/4.0/","primary_cat":"cond-mat.mes-hall","submitted_at":"2026-03-20T16:30:15Z","title_canon_sha256":"b16e869988c98abf6b6b51809ee971fc3c355a80b94d7f63c19a59a9edb2b542"},"schema_version":"1.0","source":{"id":"2603.20106","kind":"arxiv","version":2}},"source_aliases":[{"alias_kind":"arxiv","alias_value":"2603.20106","created_at":"2026-08-04T01:52:34Z"},{"alias_kind":"arxiv_version","alias_value":"2603.20106v2","created_at":"2026-08-04T01:52:34Z"},{"alias_kind":"doi","alias_value":"10.48550/arxiv.2603.20106","created_at":"2026-08-04T01:52:34Z"},{"alias_kind":"pith_short_12","alias_value":"ZKNRFZTCA6FC","created_at":"2026-08-04T01:52:34Z"},{"alias_kind":"pith_short_16","alias_value":"ZKNRFZTCA6FCNF3W","created_at":"2026-08-04T01:52:34Z"},{"alias_kind":"pith_short_8","alias_value":"ZKNRFZTC","created_at":"2026-08-04T01:52:34Z"}],"graph_snapshots":[{"event_id":"sha256:7f979f695b9329b032c3477823820098357f0b3288bcc19cbb5f15426bda6994","target":"graph","created_at":"2026-08-04T01:52:34Z","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":4,"items":[{"attestation":"unclaimed","claim_id":"C1","kind":"strongest_claim","source":"verdict.strongest_claim","status":"machine_extracted","text":"Remarkably, we find that the anisotropy orientation serves as a knob to tune the parallel resonant interaction."},{"attestation":"unclaimed","claim_id":"C2","kind":"weakest_assumption","source":"verdict.weakest_assumption","status":"machine_extracted","text":"The micromagnetic model with all strain and lattice-rotation terms fully implemented accurately captures the physical SAW-SW coupling in a realistic CoFeB film with weak in-plane uniaxial anisotropy."},{"attestation":"unclaimed","claim_id":"C3","kind":"one_line_summary","source":"verdict.one_line_summary","status":"machine_extracted","text":"Micromagnetic modeling shows that the orientation of weak in-plane uniaxial anisotropy can tune efficient resonant coupling between surface acoustic waves and spin waves even in the parallel propagation configuration."},{"attestation":"unclaimed","claim_id":"C4","kind":"headline","source":"verdict.pith_extraction.headline","status":"machine_extracted","text":"Anisotropy orientation tunes the resonant coupling between surface acoustic waves and spin waves in parallel geometry."}],"snapshot_sha256":"2f800f506f9b30439a3bbf89c38faf11607fe0817d129b104d2759b75ecefdc6"},"formal_canon":{"evidence_count":0,"snapshot_sha256":"258153158e38e3291e3d48162225fcdb2d5a3ed65a07baac614ab91432fd4f57"},"integrity":{"available":true,"clean":true,"detectors_run":[],"endpoint":"/pith/2603.20106/integrity.json","findings":[],"snapshot_sha256":"c28c3603d3b5d939e8dc4c7e95fa8dfce3d595e45f758748cecf8e644a296938","summary":{"advisory":0,"by_detector":{},"critical":0,"informational":0}},"paper":{"abstract_excerpt":"We study the coupling mechanism of surface acoustic waves (SAW) with spin waves (SW) using micromagnetic analysis. The SAW magnetoacoustic excitation field is fully implemented, i.e., all strain and lattice-rotation terms are included. A realistic CoFeB film with a weak in-plane uniaxial anisotropy is considered. We investigate the conditions for efficient SAW--SW coupling, with particular emphasis on the case where the SAW propagates parallel to the external magnetic field, a configuration of special interest for magnonic applications. Remarkably, we find that the anisotropy orientation serve","authors_text":"Daniel Stoeffler, Florian Millo, Massimiliano Marangolo, Pauline Rovillain","cross_cats":["cond-mat.stat-mech","physics.comp-ph","quant-ph"],"headline":"Anisotropy orientation tunes the resonant coupling between surface acoustic waves and spin waves in parallel geometry.","license":"http://creativecommons.org/licenses/by/4.0/","primary_cat":"cond-mat.mes-hall","submitted_at":"2026-03-20T16:30:15Z","title":"Micromagnetic Modeling of Surface Acoustic Wave Driven Dynamics: Interplay of Strain, Magnetorotation, and Magnetic Anisotropy"},"references":{"count":37,"internal_anchors":0,"resolved_work":37,"sample":[{"cited_arxiv_id":"","doi":"","is_internal_anchor":false,"ref_index":1,"title":"C. Kittel, Phys. Rev. 110, 1295 (1958)","work_id":"3779f3aa-9e19-47f5-a52c-a7b79ae4a5a4","year":1958},{"cited_arxiv_id":"","doi":"","is_internal_anchor":false,"ref_index":2,"title":"A. I. Akhiezer, V . G. B. Iakhtar, and S. V . Peletminskii, Soviet Physics JETP (1958)","work_id":"9c65dbf9-e6a8-48ab-b2a0-074adf77aa86","year":1958},{"cited_arxiv_id":"","doi":"","is_internal_anchor":false,"ref_index":3,"title":"H. F. Tiersten, Journal of Mathematical Physics 5, 1298 (1964)","work_id":"69e53ace-1dd0-4648-9a8d-542e6a4a716b","year":1964},{"cited_arxiv_id":"","doi":"","is_internal_anchor":false,"ref_index":4,"title":"H. Bömmel and K. Dransfeld, Phys. Rev. Lett. 3, 83 (1959)","work_id":"15f62ed0-69da-4eb1-9491-38fda4af101f","year":1959},{"cited_arxiv_id":"","doi":"","is_internal_anchor":false,"ref_index":5,"title":"T. Kobayashi, R. C. Barker, and A. Y elon,Phys. Rev. B 7, 3286 (1973)","work_id":"6d337a66-9eea-4090-b0ba-36f950cee6e8","year":1973}],"snapshot_sha256":"52dc9343b9107be841a6ebe929a135d816224eb99dbdcffa4619eb2918acbe3a"},"source":{"id":"2603.20106","kind":"arxiv","version":2},"verdict":{"created_at":"2026-05-15T08:02:50.140252Z","id":"81153a0d-3275-48ac-a91a-a470849c0785","model_set":{"reader":"grok-4.3"},"one_line_summary":"Micromagnetic modeling shows that the orientation of weak in-plane uniaxial anisotropy can tune efficient resonant coupling between surface acoustic waves and spin waves even in the parallel propagation configuration.","pipeline_version":"pith-pipeline@v0.9.0","pith_extraction_headline":"Anisotropy orientation tunes the resonant coupling between surface acoustic waves and spin waves in parallel geometry.","strongest_claim":"Remarkably, we find that the anisotropy orientation serves as a knob to tune the parallel resonant interaction.","weakest_assumption":"The micromagnetic model with all strain and lattice-rotation terms fully implemented accurately captures the physical SAW-SW coupling in a realistic CoFeB film with weak in-plane uniaxial anisotropy."}},"verdict_id":"81153a0d-3275-48ac-a91a-a470849c0785"}}],"author_attestations":[],"timestamp_anchors":[],"storage_attestations":[],"citation_signatures":[],"replication_records":[],"corrections":[],"mirror_hints":[],"record_created":{"event_id":"sha256:3938f692c852aff38edb94f9024c17d47a57cf97c6dfbfcd4debd74b6b843d59","target":"record","created_at":"2026-08-04T01:52:34Z","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":"ee2d608733654d0cf7cce8c9e2f8f2044799299afe51ae236bc9287f68d35402","cross_cats_sorted":["cond-mat.stat-mech","physics.comp-ph","quant-ph"],"license":"http://creativecommons.org/licenses/by/4.0/","primary_cat":"cond-mat.mes-hall","submitted_at":"2026-03-20T16:30:15Z","title_canon_sha256":"b16e869988c98abf6b6b51809ee971fc3c355a80b94d7f63c19a59a9edb2b542"},"schema_version":"1.0","source":{"id":"2603.20106","kind":"arxiv","version":2}},"canonical_sha256":"ca9b12e662078a269776dc549f67e1e8d4fb06408f2db4157085fdef2d0d0a12","receipt":{"algorithm":"ed25519","builder_version":"pith-number-builder-2026-05-17-v1","canonical_sha256":"ca9b12e662078a269776dc549f67e1e8d4fb06408f2db4157085fdef2d0d0a12","first_computed_at":"2026-08-04T01:52:34.942346Z","key_id":"pith-v1-2026-05","kind":"pith_receipt","last_reissued_at":"2026-08-04T01:52:34.942346Z","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54","receipt_version":"0.3","signature_b64":"WAmu0w7M0tVGJbILpvDC2J/h/WEOlJFPghXVNzpTiwbAl4jSafNoEI1z9oGuYG4oVnzsC3s4zEb+WnYdxZEsAw==","signature_status":"signed_v1","signed_at":"2026-08-04T01:52:34.943973Z","signed_message":"canonical_sha256_bytes"},"source_id":"2603.20106","source_kind":"arxiv","source_version":2}}},"equivocations":[],"invalid_events":[],"applied_event_ids":["sha256:3938f692c852aff38edb94f9024c17d47a57cf97c6dfbfcd4debd74b6b843d59","sha256:7f979f695b9329b032c3477823820098357f0b3288bcc19cbb5f15426bda6994"],"state_sha256":"e6943934714603361c9873c4e04ea9ae85b23ffa6047915b4967a5f7b4731947"},"bundle_signature":{"signature_status":"signed_v1","algorithm":"ed25519","key_id":"pith-v1-2026-05","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54","signature_b64":"RG83JXzhveSCMyRH6w2ygNgSMDTwN4YEC+T2k6ELBhNAt98vnZc8eiXicSKChVSQuHiqblj/+P4/ckz/xe52Ag==","signed_message":"bundle_sha256_bytes","signed_at":"2026-08-06T03:46:45.690560Z","bundle_sha256":"43eb801293b4f452dd3f4b4b1c4b6fe87f4b66bf3829c352470198a7f91c9f36"}}