{"bundle_type":"pith_open_graph_bundle","bundle_version":"1.0","pith_number":"pith:2025:YFMOCIWHTBSGU6DNC4J44QYGRN","short_pith_number":"pith:YFMOCIWH","canonical_record":{"source":{"id":"2508.03010","kind":"arxiv","version":1},"metadata":{"license":"http://creativecommons.org/licenses/by/4.0/","primary_cat":"physics.app-ph","submitted_at":"2025-08-05T02:35:17Z","cross_cats_sorted":["physics.class-ph"],"title_canon_sha256":"8d29f6c55ee02ae66aec8543f9fb75bfde10a4d156aebe84ba8680b7fd9c2484","abstract_canon_sha256":"dddd3a1fb5e89a8c0764b4f4fff8bd1e6a7fdaca5922b335c18d9c5ce03356a2"},"schema_version":"1.0"},"canonical_sha256":"c158e122c798646a786d1713ce43068b5fe600767ba226ed7d640981f8edfa9e","source":{"kind":"arxiv","id":"2508.03010","version":1},"source_aliases":[{"alias_kind":"arxiv","alias_value":"2508.03010","created_at":"2026-07-05T11:48:34Z"},{"alias_kind":"arxiv_version","alias_value":"2508.03010v1","created_at":"2026-07-05T11:48:34Z"},{"alias_kind":"doi","alias_value":"10.48550/arxiv.2508.03010","created_at":"2026-07-05T11:48:34Z"},{"alias_kind":"pith_short_12","alias_value":"YFMOCIWHTBSG","created_at":"2026-07-05T11:48:34Z"},{"alias_kind":"pith_short_16","alias_value":"YFMOCIWHTBSGU6DN","created_at":"2026-07-05T11:48:34Z"},{"alias_kind":"pith_short_8","alias_value":"YFMOCIWH","created_at":"2026-07-05T11:48:34Z"}],"events":[{"event_type":"record_created","subject_pith_number":"pith:2025:YFMOCIWHTBSGU6DNC4J44QYGRN","target":"record","payload":{"canonical_record":{"source":{"id":"2508.03010","kind":"arxiv","version":1},"metadata":{"license":"http://creativecommons.org/licenses/by/4.0/","primary_cat":"physics.app-ph","submitted_at":"2025-08-05T02:35:17Z","cross_cats_sorted":["physics.class-ph"],"title_canon_sha256":"8d29f6c55ee02ae66aec8543f9fb75bfde10a4d156aebe84ba8680b7fd9c2484","abstract_canon_sha256":"dddd3a1fb5e89a8c0764b4f4fff8bd1e6a7fdaca5922b335c18d9c5ce03356a2"},"schema_version":"1.0"},"canonical_sha256":"c158e122c798646a786d1713ce43068b5fe600767ba226ed7d640981f8edfa9e","receipt":{"kind":"pith_receipt","key_id":"pith-v1-2026-05","algorithm":"ed25519","signed_at":"2026-07-05T11:48:34.808359Z","signature_b64":"D+x6+y4Big3mfrnrqzZAf80EHjB6WLiZGOVsVz0YXTFgQK6iashypBMfhjLajD5sbgO9Nxsq7Sa1CCetqNQ+CQ==","signed_message":"canonical_sha256_bytes","builder_version":"pith-number-builder-2026-05-17-v1","receipt_version":"0.3","canonical_sha256":"c158e122c798646a786d1713ce43068b5fe600767ba226ed7d640981f8edfa9e","last_reissued_at":"2026-07-05T11:48:34.807841Z","signature_status":"signed_v1","first_computed_at":"2026-07-05T11:48:34.807841Z","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54"},"source_kind":"arxiv","source_id":"2508.03010","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":"2026-07-05T11:48:34Z","supersedes":[],"prev_event":null,"signature":{"signature_status":"signed_v1","algorithm":"ed25519","key_id":"pith-v1-2026-05","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54","signature_b64":"RIaNy2GV2tpcI+mxCb9EAoj8A+Nrw0LcnYSfUmagdVlHsWtHVN90gSdelM5pfN0dFihujpAaBk6YEN4BE/SUDw==","signed_message":"open_graph_event_sha256_bytes","signed_at":"2026-08-07T06:18:41.327703Z"},"content_sha256":"4594739e5f8582d3f486656cb6539869d5738286f02eb2fb63d8543e44e3bdfc","schema_version":"1.0","event_id":"sha256:4594739e5f8582d3f486656cb6539869d5738286f02eb2fb63d8543e44e3bdfc"},{"event_type":"graph_snapshot","subject_pith_number":"pith:2025:YFMOCIWHTBSGU6DNC4J44QYGRN","target":"graph","payload":{"graph_snapshot":{"paper":{"title":"High-Capacity and Real-Time Acoustic Communication by Multiplexing Velocity","license":"http://creativecommons.org/licenses/by/4.0/","headline":"","cross_cats":["physics.class-ph"],"primary_cat":"physics.app-ph","authors_text":"Lei Liu, Ming-Hui Lu, Xiujuan Zhang, Yan-Feng Chen","submitted_at":"2025-08-05T02:35:17Z","abstract_excerpt":"Acoustic communication is indispensable for underwater networks, deep ocean exploration, and biological monitoring, environments where electromagnetic waves become impractical. However, unlike the latter, whose vector polarization naturally supports multiple information channels, acoustic waves are longitudinal and have traditionally relied almost exclusively on a single scalar pressure channel, posing a fundamental limit on their data-carrying capacity. Here, we theoretically and experimentally demonstrate that the vector velocity of acoustic waves can serve as a polarization-like physical de"},"claims":{"count":0,"items":[],"snapshot_sha256":"258153158e38e3291e3d48162225fcdb2d5a3ed65a07baac614ab91432fd4f57"},"source":{"id":"2508.03010","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/2508.03010/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":"2026-07-05T11:48:34Z","supersedes":[],"prev_event":null,"signature":{"signature_status":"signed_v1","algorithm":"ed25519","key_id":"pith-v1-2026-05","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54","signature_b64":"NtHpbEiMP4N9tD1t2E5TNbTNc+QPmJ7IyoE85gAiJRgL5SpsOdn5TNxIVfRelT8iW1xyYqKfXw77/evE2n0xBg==","signed_message":"open_graph_event_sha256_bytes","signed_at":"2026-08-07T06:18:41.328220Z"},"content_sha256":"475fc0cd917bdcfafdc366ce32055a11b17c5f4a96443ea6126d4df2c4238839","schema_version":"1.0","event_id":"sha256:475fc0cd917bdcfafdc366ce32055a11b17c5f4a96443ea6126d4df2c4238839"}],"timestamp_proofs":[],"mirror_hints":[{"mirror_type":"https","name":"Pith Resolver","base_url":"https://pith.science","bundle_url":"https://pith.science/pith/YFMOCIWHTBSGU6DNC4J44QYGRN/bundle.json","state_url":"https://pith.science/pith/YFMOCIWHTBSGU6DNC4J44QYGRN/state.json","well_known_bundle_url":"https://pith.science/.well-known/pith/YFMOCIWHTBSGU6DNC4J44QYGRN/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":"2026-08-07T06:18:41Z","links":{"resolver":"https://pith.science/pith/YFMOCIWHTBSGU6DNC4J44QYGRN","bundle":"https://pith.science/pith/YFMOCIWHTBSGU6DNC4J44QYGRN/bundle.json","state":"https://pith.science/pith/YFMOCIWHTBSGU6DNC4J44QYGRN/state.json","well_known_bundle":"https://pith.science/.well-known/pith/YFMOCIWHTBSGU6DNC4J44QYGRN/bundle.json"},"state":{"state_type":"pith_open_graph_state","state_version":"1.0","pith_number":"pith:2025:YFMOCIWHTBSGU6DNC4J44QYGRN","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":"dddd3a1fb5e89a8c0764b4f4fff8bd1e6a7fdaca5922b335c18d9c5ce03356a2","cross_cats_sorted":["physics.class-ph"],"license":"http://creativecommons.org/licenses/by/4.0/","primary_cat":"physics.app-ph","submitted_at":"2025-08-05T02:35:17Z","title_canon_sha256":"8d29f6c55ee02ae66aec8543f9fb75bfde10a4d156aebe84ba8680b7fd9c2484"},"schema_version":"1.0","source":{"id":"2508.03010","kind":"arxiv","version":1}},"source_aliases":[{"alias_kind":"arxiv","alias_value":"2508.03010","created_at":"2026-07-05T11:48:34Z"},{"alias_kind":"arxiv_version","alias_value":"2508.03010v1","created_at":"2026-07-05T11:48:34Z"},{"alias_kind":"doi","alias_value":"10.48550/arxiv.2508.03010","created_at":"2026-07-05T11:48:34Z"},{"alias_kind":"pith_short_12","alias_value":"YFMOCIWHTBSG","created_at":"2026-07-05T11:48:34Z"},{"alias_kind":"pith_short_16","alias_value":"YFMOCIWHTBSGU6DN","created_at":"2026-07-05T11:48:34Z"},{"alias_kind":"pith_short_8","alias_value":"YFMOCIWH","created_at":"2026-07-05T11:48:34Z"}],"graph_snapshots":[{"event_id":"sha256:475fc0cd917bdcfafdc366ce32055a11b17c5f4a96443ea6126d4df2c4238839","target":"graph","created_at":"2026-07-05T11:48:34Z","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":0,"items":[],"snapshot_sha256":"258153158e38e3291e3d48162225fcdb2d5a3ed65a07baac614ab91432fd4f57"},"formal_canon":{"evidence_count":0,"snapshot_sha256":"258153158e38e3291e3d48162225fcdb2d5a3ed65a07baac614ab91432fd4f57"},"integrity":{"available":true,"clean":true,"detectors_run":[],"endpoint":"/pith/2508.03010/integrity.json","findings":[],"snapshot_sha256":"c28c3603d3b5d939e8dc4c7e95fa8dfce3d595e45f758748cecf8e644a296938","summary":{"advisory":0,"by_detector":{},"critical":0,"informational":0}},"paper":{"abstract_excerpt":"Acoustic communication is indispensable for underwater networks, deep ocean exploration, and biological monitoring, environments where electromagnetic waves become impractical. However, unlike the latter, whose vector polarization naturally supports multiple information channels, acoustic waves are longitudinal and have traditionally relied almost exclusively on a single scalar pressure channel, posing a fundamental limit on their data-carrying capacity. Here, we theoretically and experimentally demonstrate that the vector velocity of acoustic waves can serve as a polarization-like physical de","authors_text":"Lei Liu, Ming-Hui Lu, Xiujuan Zhang, Yan-Feng Chen","cross_cats":["physics.class-ph"],"headline":"","license":"http://creativecommons.org/licenses/by/4.0/","primary_cat":"physics.app-ph","submitted_at":"2025-08-05T02:35:17Z","title":"High-Capacity and Real-Time Acoustic Communication by Multiplexing Velocity"},"references":{"count":0,"internal_anchors":0,"resolved_work":0,"sample":[],"snapshot_sha256":"258153158e38e3291e3d48162225fcdb2d5a3ed65a07baac614ab91432fd4f57"},"source":{"id":"2508.03010","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":"sha256:4594739e5f8582d3f486656cb6539869d5738286f02eb2fb63d8543e44e3bdfc","target":"record","created_at":"2026-07-05T11:48:34Z","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":"dddd3a1fb5e89a8c0764b4f4fff8bd1e6a7fdaca5922b335c18d9c5ce03356a2","cross_cats_sorted":["physics.class-ph"],"license":"http://creativecommons.org/licenses/by/4.0/","primary_cat":"physics.app-ph","submitted_at":"2025-08-05T02:35:17Z","title_canon_sha256":"8d29f6c55ee02ae66aec8543f9fb75bfde10a4d156aebe84ba8680b7fd9c2484"},"schema_version":"1.0","source":{"id":"2508.03010","kind":"arxiv","version":1}},"canonical_sha256":"c158e122c798646a786d1713ce43068b5fe600767ba226ed7d640981f8edfa9e","receipt":{"algorithm":"ed25519","builder_version":"pith-number-builder-2026-05-17-v1","canonical_sha256":"c158e122c798646a786d1713ce43068b5fe600767ba226ed7d640981f8edfa9e","first_computed_at":"2026-07-05T11:48:34.807841Z","key_id":"pith-v1-2026-05","kind":"pith_receipt","last_reissued_at":"2026-07-05T11:48:34.807841Z","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54","receipt_version":"0.3","signature_b64":"D+x6+y4Big3mfrnrqzZAf80EHjB6WLiZGOVsVz0YXTFgQK6iashypBMfhjLajD5sbgO9Nxsq7Sa1CCetqNQ+CQ==","signature_status":"signed_v1","signed_at":"2026-07-05T11:48:34.808359Z","signed_message":"canonical_sha256_bytes"},"source_id":"2508.03010","source_kind":"arxiv","source_version":1}}},"equivocations":[],"invalid_events":[],"applied_event_ids":["sha256:4594739e5f8582d3f486656cb6539869d5738286f02eb2fb63d8543e44e3bdfc","sha256:475fc0cd917bdcfafdc366ce32055a11b17c5f4a96443ea6126d4df2c4238839"],"state_sha256":"088fce019a244eeed2309120bc1554a0c415a1d303708e1fc016c6b257196ed0"},"bundle_signature":{"signature_status":"signed_v1","algorithm":"ed25519","key_id":"pith-v1-2026-05","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54","signature_b64":"hh1Uy4Vb44EAaCtosBhJYNOuOxXi+LHFa+S47NwYE2P0+dvQ4/3RzgabE/plqdnfUjwNFbtp4Rw4naKfBInoAw==","signed_message":"bundle_sha256_bytes","signed_at":"2026-08-07T06:18:41.332627Z","bundle_sha256":"1cd0b99be28493de907dd68ed10b78395cba9d3a57dcc1c991a2e31486018a3c"}}