{"bundle_type":"pith_open_graph_bundle","bundle_version":"1.0","pith_number":"pith:2024:Q5SKF4MNH6ZUQXAB76BZ3HJX6L","short_pith_number":"pith:Q5SKF4MN","canonical_record":{"source":{"id":"2401.05809","kind":"arxiv","version":1},"metadata":{"license":"http://creativecommons.org/licenses/by/4.0/","primary_cat":"eess.AS","submitted_at":"2024-01-11T10:21:47Z","cross_cats_sorted":["cs.SD"],"title_canon_sha256":"812e2e74a29330f096fa41082693bcc32ed12e35d70b9c3eff5821523dbc1cf0","abstract_canon_sha256":"7f16548ca148581dafdb3525ab83ce743ebe8db41ab79b662729602a305866a9"},"schema_version":"1.0"},"canonical_sha256":"8764a2f18d3fb3485c01ff839d9d37f2c9991f5ae8c3eaaf74114dfd1d66ea9f","source":{"kind":"arxiv","id":"2401.05809","version":1},"source_aliases":[{"alias_kind":"arxiv","alias_value":"2401.05809","created_at":"2026-07-05T07:32:35Z"},{"alias_kind":"arxiv_version","alias_value":"2401.05809v1","created_at":"2026-07-05T07:32:35Z"},{"alias_kind":"doi","alias_value":"10.48550/arxiv.2401.05809","created_at":"2026-07-05T07:32:35Z"},{"alias_kind":"pith_short_12","alias_value":"Q5SKF4MNH6ZU","created_at":"2026-07-05T07:32:35Z"},{"alias_kind":"pith_short_16","alias_value":"Q5SKF4MNH6ZUQXAB","created_at":"2026-07-05T07:32:35Z"},{"alias_kind":"pith_short_8","alias_value":"Q5SKF4MN","created_at":"2026-07-05T07:32:35Z"}],"events":[{"event_type":"record_created","subject_pith_number":"pith:2024:Q5SKF4MNH6ZUQXAB76BZ3HJX6L","target":"record","payload":{"canonical_record":{"source":{"id":"2401.05809","kind":"arxiv","version":1},"metadata":{"license":"http://creativecommons.org/licenses/by/4.0/","primary_cat":"eess.AS","submitted_at":"2024-01-11T10:21:47Z","cross_cats_sorted":["cs.SD"],"title_canon_sha256":"812e2e74a29330f096fa41082693bcc32ed12e35d70b9c3eff5821523dbc1cf0","abstract_canon_sha256":"7f16548ca148581dafdb3525ab83ce743ebe8db41ab79b662729602a305866a9"},"schema_version":"1.0"},"canonical_sha256":"8764a2f18d3fb3485c01ff839d9d37f2c9991f5ae8c3eaaf74114dfd1d66ea9f","receipt":{"kind":"pith_receipt","key_id":"pith-v1-2026-05","algorithm":"ed25519","signed_at":"2026-07-05T07:32:35.819351Z","signature_b64":"g3/FGwITVKz9/8fsBlvH0bp5f0v5okJZoV47aZsVR9c2SZUR08ji96EtlPtn0UzMK5CYRBcRSdZYbLAEQh0oDg==","signed_message":"canonical_sha256_bytes","builder_version":"pith-number-builder-2026-05-17-v1","receipt_version":"0.3","canonical_sha256":"8764a2f18d3fb3485c01ff839d9d37f2c9991f5ae8c3eaaf74114dfd1d66ea9f","last_reissued_at":"2026-07-05T07:32:35.818825Z","signature_status":"signed_v1","first_computed_at":"2026-07-05T07:32:35.818825Z","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54"},"source_kind":"arxiv","source_id":"2401.05809","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":"2026-07-05T07:32:35Z","supersedes":[],"prev_event":null,"signature":{"signature_status":"signed_v1","algorithm":"ed25519","key_id":"pith-v1-2026-05","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54","signature_b64":"PO+bhtHc7pK8ztC2+ssf/60q7B3STHRPOArSgPzjj8Y6wLFCvG18gyO6UeSMKB7998qir2sqL04b7+yeYIyBBA==","signed_message":"open_graph_event_sha256_bytes","signed_at":"2026-08-23T20:30:09.953487Z"},"content_sha256":"21ce971b4492ee84ed83b8b06bf1f6510d583c3005b0e487726ac3f576c3129f","schema_version":"1.0","event_id":"sha256:21ce971b4492ee84ed83b8b06bf1f6510d583c3005b0e487726ac3f576c3129f"},{"event_type":"graph_snapshot","subject_pith_number":"pith:2024:Q5SKF4MNH6ZUQXAB76BZ3HJX6L","target":"graph","payload":{"graph_snapshot":{"paper":{"title":"Localizing Acoustic Energy in Sound Field Synthesis by Directionally Weighted Exterior Radiation Suppression","license":"http://creativecommons.org/licenses/by/4.0/","headline":"","cross_cats":["cs.SD"],"primary_cat":"eess.AS","authors_text":"Hiroshi Saruwatari, Shoichi Koyama, Yoshihide Tomita","submitted_at":"2024-01-11T10:21:47Z","abstract_excerpt":"A method for synthesizing the desired sound field while suppressing the exterior radiation power with directional weighting is proposed. The exterior radiation from the loudspeakers in sound field synthesis systems can be problematic in practical situations. Although several methods to suppress the exterior radiation have been proposed, suppression in all outward directions is generally difficult, especially when the number of loudspeakers is not sufficiently large. We propose the directionally weighted exterior radiation representation to prioritize the suppression directions by incorporating"},"claims":{"count":0,"items":[],"snapshot_sha256":"258153158e38e3291e3d48162225fcdb2d5a3ed65a07baac614ab91432fd4f57"},"source":{"id":"2401.05809","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/2401.05809/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":"2026-07-05T07:32:35Z","supersedes":[],"prev_event":null,"signature":{"signature_status":"signed_v1","algorithm":"ed25519","key_id":"pith-v1-2026-05","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54","signature_b64":"1uZqIN+521j+O1doaM2jOGThBz+0UDRXgjMJL+mSbO02eET3B1d6I8ryuTJaJFdWLh5ZPl9a5hiJL2L0MIZVCA==","signed_message":"open_graph_event_sha256_bytes","signed_at":"2026-08-23T20:30:09.954015Z"},"content_sha256":"e1b4498a42b892f17f4c3d2f136371b6edd3bdd5da2d75818dac1a2bf13b2ae8","schema_version":"1.0","event_id":"sha256:e1b4498a42b892f17f4c3d2f136371b6edd3bdd5da2d75818dac1a2bf13b2ae8"}],"timestamp_proofs":[],"mirror_hints":[{"mirror_type":"https","name":"Pith Resolver","base_url":"https://pith.science","bundle_url":"https://pith.science/pith/Q5SKF4MNH6ZUQXAB76BZ3HJX6L/bundle.json","state_url":"https://pith.science/pith/Q5SKF4MNH6ZUQXAB76BZ3HJX6L/state.json","well_known_bundle_url":"https://pith.science/.well-known/pith/Q5SKF4MNH6ZUQXAB76BZ3HJX6L/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":"2026-08-23T20:30:09Z","links":{"resolver":"https://pith.science/pith/Q5SKF4MNH6ZUQXAB76BZ3HJX6L","bundle":"https://pith.science/pith/Q5SKF4MNH6ZUQXAB76BZ3HJX6L/bundle.json","state":"https://pith.science/pith/Q5SKF4MNH6ZUQXAB76BZ3HJX6L/state.json","well_known_bundle":"https://pith.science/.well-known/pith/Q5SKF4MNH6ZUQXAB76BZ3HJX6L/bundle.json"},"state":{"state_type":"pith_open_graph_state","state_version":"1.0","pith_number":"pith:2024:Q5SKF4MNH6ZUQXAB76BZ3HJX6L","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":"7f16548ca148581dafdb3525ab83ce743ebe8db41ab79b662729602a305866a9","cross_cats_sorted":["cs.SD"],"license":"http://creativecommons.org/licenses/by/4.0/","primary_cat":"eess.AS","submitted_at":"2024-01-11T10:21:47Z","title_canon_sha256":"812e2e74a29330f096fa41082693bcc32ed12e35d70b9c3eff5821523dbc1cf0"},"schema_version":"1.0","source":{"id":"2401.05809","kind":"arxiv","version":1}},"source_aliases":[{"alias_kind":"arxiv","alias_value":"2401.05809","created_at":"2026-07-05T07:32:35Z"},{"alias_kind":"arxiv_version","alias_value":"2401.05809v1","created_at":"2026-07-05T07:32:35Z"},{"alias_kind":"doi","alias_value":"10.48550/arxiv.2401.05809","created_at":"2026-07-05T07:32:35Z"},{"alias_kind":"pith_short_12","alias_value":"Q5SKF4MNH6ZU","created_at":"2026-07-05T07:32:35Z"},{"alias_kind":"pith_short_16","alias_value":"Q5SKF4MNH6ZUQXAB","created_at":"2026-07-05T07:32:35Z"},{"alias_kind":"pith_short_8","alias_value":"Q5SKF4MN","created_at":"2026-07-05T07:32:35Z"}],"graph_snapshots":[{"event_id":"sha256:e1b4498a42b892f17f4c3d2f136371b6edd3bdd5da2d75818dac1a2bf13b2ae8","target":"graph","created_at":"2026-07-05T07:32:35Z","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/2401.05809/integrity.json","findings":[],"snapshot_sha256":"c28c3603d3b5d939e8dc4c7e95fa8dfce3d595e45f758748cecf8e644a296938","summary":{"advisory":0,"by_detector":{},"critical":0,"informational":0}},"paper":{"abstract_excerpt":"A method for synthesizing the desired sound field while suppressing the exterior radiation power with directional weighting is proposed. The exterior radiation from the loudspeakers in sound field synthesis systems can be problematic in practical situations. Although several methods to suppress the exterior radiation have been proposed, suppression in all outward directions is generally difficult, especially when the number of loudspeakers is not sufficiently large. We propose the directionally weighted exterior radiation representation to prioritize the suppression directions by incorporating","authors_text":"Hiroshi Saruwatari, Shoichi Koyama, Yoshihide Tomita","cross_cats":["cs.SD"],"headline":"","license":"http://creativecommons.org/licenses/by/4.0/","primary_cat":"eess.AS","submitted_at":"2024-01-11T10:21:47Z","title":"Localizing Acoustic Energy in Sound Field Synthesis by Directionally Weighted Exterior Radiation Suppression"},"references":{"count":0,"internal_anchors":0,"resolved_work":0,"sample":[],"snapshot_sha256":"258153158e38e3291e3d48162225fcdb2d5a3ed65a07baac614ab91432fd4f57"},"source":{"id":"2401.05809","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":"sha256:21ce971b4492ee84ed83b8b06bf1f6510d583c3005b0e487726ac3f576c3129f","target":"record","created_at":"2026-07-05T07:32:35Z","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":"7f16548ca148581dafdb3525ab83ce743ebe8db41ab79b662729602a305866a9","cross_cats_sorted":["cs.SD"],"license":"http://creativecommons.org/licenses/by/4.0/","primary_cat":"eess.AS","submitted_at":"2024-01-11T10:21:47Z","title_canon_sha256":"812e2e74a29330f096fa41082693bcc32ed12e35d70b9c3eff5821523dbc1cf0"},"schema_version":"1.0","source":{"id":"2401.05809","kind":"arxiv","version":1}},"canonical_sha256":"8764a2f18d3fb3485c01ff839d9d37f2c9991f5ae8c3eaaf74114dfd1d66ea9f","receipt":{"algorithm":"ed25519","builder_version":"pith-number-builder-2026-05-17-v1","canonical_sha256":"8764a2f18d3fb3485c01ff839d9d37f2c9991f5ae8c3eaaf74114dfd1d66ea9f","first_computed_at":"2026-07-05T07:32:35.818825Z","key_id":"pith-v1-2026-05","kind":"pith_receipt","last_reissued_at":"2026-07-05T07:32:35.818825Z","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54","receipt_version":"0.3","signature_b64":"g3/FGwITVKz9/8fsBlvH0bp5f0v5okJZoV47aZsVR9c2SZUR08ji96EtlPtn0UzMK5CYRBcRSdZYbLAEQh0oDg==","signature_status":"signed_v1","signed_at":"2026-07-05T07:32:35.819351Z","signed_message":"canonical_sha256_bytes"},"source_id":"2401.05809","source_kind":"arxiv","source_version":1}}},"equivocations":[],"invalid_events":[],"applied_event_ids":["sha256:21ce971b4492ee84ed83b8b06bf1f6510d583c3005b0e487726ac3f576c3129f","sha256:e1b4498a42b892f17f4c3d2f136371b6edd3bdd5da2d75818dac1a2bf13b2ae8"],"state_sha256":"78d2de4792be2aac771535a3dbcfd98393da3a8092a51cbb390106ea9ba2f5da"},"bundle_signature":{"signature_status":"signed_v1","algorithm":"ed25519","key_id":"pith-v1-2026-05","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54","signature_b64":"wSBoW6nCGypIrC/uRdBXDlEIrlnJieL7peCR+Gv7V8qWeiNdrl1q9BQn/pJNO12MpGm300Jm6w9lcqrJb6nbDA==","signed_message":"bundle_sha256_bytes","signed_at":"2026-08-23T20:30:09.957590Z","bundle_sha256":"28e6686734ebcc55125c633a595c5b1641503099d885540b6f45fe544ad3c02d"}}