{"bundle_type":"pith_open_graph_bundle","bundle_version":"1.0","pith_number":"pith:2017:OYDJ6TWNRQQRRMSHOURZQRXJJ6","short_pith_number":"pith:OYDJ6TWN","canonical_record":{"source":{"id":"1704.02255","kind":"arxiv","version":1},"metadata":{"license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"cond-mat.mes-hall","submitted_at":"2017-04-07T14:54:09Z","cross_cats_sorted":[],"title_canon_sha256":"d564e4bb513a8d7afc96bb8207657f9df04846e170e0ff9622dbb9c334d7bed6","abstract_canon_sha256":"85fa165854bbb7bf10fc6777ed4a7ff677dfdff9b383e098cb1e9eeb21245dc3"},"schema_version":"1.0"},"canonical_sha256":"76069f4ecd8c2118b24775239846e94fa52dae5dd8ff760bd77f0a696dad8801","source":{"kind":"arxiv","id":"1704.02255","version":1},"source_aliases":[{"alias_kind":"arxiv","alias_value":"1704.02255","created_at":"2026-05-17T23:44:48Z"},{"alias_kind":"arxiv_version","alias_value":"1704.02255v1","created_at":"2026-05-17T23:44:48Z"},{"alias_kind":"doi","alias_value":"10.48550/arxiv.1704.02255","created_at":"2026-05-17T23:44:48Z"},{"alias_kind":"pith_short_12","alias_value":"OYDJ6TWNRQQR","created_at":"2026-05-18T12:31:34Z"},{"alias_kind":"pith_short_16","alias_value":"OYDJ6TWNRQQRRMSH","created_at":"2026-05-18T12:31:34Z"},{"alias_kind":"pith_short_8","alias_value":"OYDJ6TWN","created_at":"2026-05-18T12:31:34Z"}],"events":[{"event_type":"record_created","subject_pith_number":"pith:2017:OYDJ6TWNRQQRRMSHOURZQRXJJ6","target":"record","payload":{"canonical_record":{"source":{"id":"1704.02255","kind":"arxiv","version":1},"metadata":{"license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"cond-mat.mes-hall","submitted_at":"2017-04-07T14:54:09Z","cross_cats_sorted":[],"title_canon_sha256":"d564e4bb513a8d7afc96bb8207657f9df04846e170e0ff9622dbb9c334d7bed6","abstract_canon_sha256":"85fa165854bbb7bf10fc6777ed4a7ff677dfdff9b383e098cb1e9eeb21245dc3"},"schema_version":"1.0"},"canonical_sha256":"76069f4ecd8c2118b24775239846e94fa52dae5dd8ff760bd77f0a696dad8801","receipt":{"kind":"pith_receipt","key_id":"pith-v1-2026-05","algorithm":"ed25519","signed_at":"2026-05-17T23:44:48.561370Z","signature_b64":"LjR+Hf5OmBYVw+KpTjTM9xcVUC/AeQ2ac/x19NekGBh/99vGWxHTTAK06UX9XBbv0j8MW9/hEglthyNNqOgoDg==","signed_message":"canonical_sha256_bytes","builder_version":"pith-number-builder-2026-05-17-v1","receipt_version":"0.3","canonical_sha256":"76069f4ecd8c2118b24775239846e94fa52dae5dd8ff760bd77f0a696dad8801","last_reissued_at":"2026-05-17T23:44:48.560756Z","signature_status":"signed_v1","first_computed_at":"2026-05-17T23:44:48.560756Z","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54"},"source_kind":"arxiv","source_id":"1704.02255","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":"2026-05-17T23:44:48Z","supersedes":[],"prev_event":null,"signature":{"signature_status":"signed_v1","algorithm":"ed25519","key_id":"pith-v1-2026-05","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54","signature_b64":"2c6uiT6Ks3vixIAAydCCCXN17RR+gZyh4A7usBE1YjmVlxcsD/Wd/DN+5MNd6SobccmP2uSVqDjshbCPS66HBg==","signed_message":"open_graph_event_sha256_bytes","signed_at":"2026-05-27T06:32:05.728879Z"},"content_sha256":"0aa59be807c0aad25d497e40206b765e7e5d44e2c7b4bfddab3e4cea152bf5a3","schema_version":"1.0","event_id":"sha256:0aa59be807c0aad25d497e40206b765e7e5d44e2c7b4bfddab3e4cea152bf5a3"},{"event_type":"graph_snapshot","subject_pith_number":"pith:2017:OYDJ6TWNRQQRRMSHOURZQRXJJ6","target":"graph","payload":{"graph_snapshot":{"paper":{"title":"Reconfigurable nano-scale spin-wave directional coupler","license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","headline":"","cross_cats":[],"primary_cat":"cond-mat.mes-hall","authors_text":"Andrei Slavin, Andrii V. Chumak, Burkard Hillebrands, Philipp Pirro, Qi Wang, Roman Verba","submitted_at":"2017-04-07T14:54:09Z","abstract_excerpt":"A spin-wave (SW) directional coupler comprised of two laterally parallel nano-scale dipolarly-coupled SW waveguides is proposed and studied using micromagnetic simulations and analytical theory. The energy of a SW excited in one of the waveguides in the course of propagation is periodically transferred to the other waveguide and back, and the spatial half-period of this transfer is defined as the coupling length. The coupling length is determined by the dipolar coupling between the waveguides, and the fraction of the SW energy transferred to the other waveguide at the device output can be vari"},"claims":{"count":0,"items":[],"snapshot_sha256":"258153158e38e3291e3d48162225fcdb2d5a3ed65a07baac614ab91432fd4f57"},"source":{"id":"1704.02255","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":""},"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":"2026-05-17T23:44:48Z","supersedes":[],"prev_event":null,"signature":{"signature_status":"signed_v1","algorithm":"ed25519","key_id":"pith-v1-2026-05","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54","signature_b64":"ioeDFTro3dCA8yY8rojxycVQOQMR5qt2zVerd2/4UjxZL03KYm3QY8wLf7F1bhxSLjt7yNWsxfhuMgW6/LZaAQ==","signed_message":"open_graph_event_sha256_bytes","signed_at":"2026-05-27T06:32:05.729232Z"},"content_sha256":"7a2ee48ff9cc82ce68ddc5c95fe2e0dae7e2dee2d37281cfbadb28f14e267a64","schema_version":"1.0","event_id":"sha256:7a2ee48ff9cc82ce68ddc5c95fe2e0dae7e2dee2d37281cfbadb28f14e267a64"}],"timestamp_proofs":[],"mirror_hints":[{"mirror_type":"https","name":"Pith Resolver","base_url":"https://pith.science","bundle_url":"https://pith.science/pith/OYDJ6TWNRQQRRMSHOURZQRXJJ6/bundle.json","state_url":"https://pith.science/pith/OYDJ6TWNRQQRRMSHOURZQRXJJ6/state.json","well_known_bundle_url":"https://pith.science/.well-known/pith/OYDJ6TWNRQQRRMSHOURZQRXJJ6/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":"2026-05-27T06:32:05Z","links":{"resolver":"https://pith.science/pith/OYDJ6TWNRQQRRMSHOURZQRXJJ6","bundle":"https://pith.science/pith/OYDJ6TWNRQQRRMSHOURZQRXJJ6/bundle.json","state":"https://pith.science/pith/OYDJ6TWNRQQRRMSHOURZQRXJJ6/state.json","well_known_bundle":"https://pith.science/.well-known/pith/OYDJ6TWNRQQRRMSHOURZQRXJJ6/bundle.json"},"state":{"state_type":"pith_open_graph_state","state_version":"1.0","pith_number":"pith:2017:OYDJ6TWNRQQRRMSHOURZQRXJJ6","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":"85fa165854bbb7bf10fc6777ed4a7ff677dfdff9b383e098cb1e9eeb21245dc3","cross_cats_sorted":[],"license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"cond-mat.mes-hall","submitted_at":"2017-04-07T14:54:09Z","title_canon_sha256":"d564e4bb513a8d7afc96bb8207657f9df04846e170e0ff9622dbb9c334d7bed6"},"schema_version":"1.0","source":{"id":"1704.02255","kind":"arxiv","version":1}},"source_aliases":[{"alias_kind":"arxiv","alias_value":"1704.02255","created_at":"2026-05-17T23:44:48Z"},{"alias_kind":"arxiv_version","alias_value":"1704.02255v1","created_at":"2026-05-17T23:44:48Z"},{"alias_kind":"doi","alias_value":"10.48550/arxiv.1704.02255","created_at":"2026-05-17T23:44:48Z"},{"alias_kind":"pith_short_12","alias_value":"OYDJ6TWNRQQR","created_at":"2026-05-18T12:31:34Z"},{"alias_kind":"pith_short_16","alias_value":"OYDJ6TWNRQQRRMSH","created_at":"2026-05-18T12:31:34Z"},{"alias_kind":"pith_short_8","alias_value":"OYDJ6TWN","created_at":"2026-05-18T12:31:34Z"}],"graph_snapshots":[{"event_id":"sha256:7a2ee48ff9cc82ce68ddc5c95fe2e0dae7e2dee2d37281cfbadb28f14e267a64","target":"graph","created_at":"2026-05-17T23:44:48Z","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"},"paper":{"abstract_excerpt":"A spin-wave (SW) directional coupler comprised of two laterally parallel nano-scale dipolarly-coupled SW waveguides is proposed and studied using micromagnetic simulations and analytical theory. The energy of a SW excited in one of the waveguides in the course of propagation is periodically transferred to the other waveguide and back, and the spatial half-period of this transfer is defined as the coupling length. The coupling length is determined by the dipolar coupling between the waveguides, and the fraction of the SW energy transferred to the other waveguide at the device output can be vari","authors_text":"Andrei Slavin, Andrii V. Chumak, Burkard Hillebrands, Philipp Pirro, Qi Wang, Roman Verba","cross_cats":[],"headline":"","license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"cond-mat.mes-hall","submitted_at":"2017-04-07T14:54:09Z","title":"Reconfigurable nano-scale spin-wave directional coupler"},"references":{"count":0,"internal_anchors":0,"resolved_work":0,"sample":[],"snapshot_sha256":"258153158e38e3291e3d48162225fcdb2d5a3ed65a07baac614ab91432fd4f57"},"source":{"id":"1704.02255","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":"sha256:0aa59be807c0aad25d497e40206b765e7e5d44e2c7b4bfddab3e4cea152bf5a3","target":"record","created_at":"2026-05-17T23:44:48Z","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":"85fa165854bbb7bf10fc6777ed4a7ff677dfdff9b383e098cb1e9eeb21245dc3","cross_cats_sorted":[],"license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"cond-mat.mes-hall","submitted_at":"2017-04-07T14:54:09Z","title_canon_sha256":"d564e4bb513a8d7afc96bb8207657f9df04846e170e0ff9622dbb9c334d7bed6"},"schema_version":"1.0","source":{"id":"1704.02255","kind":"arxiv","version":1}},"canonical_sha256":"76069f4ecd8c2118b24775239846e94fa52dae5dd8ff760bd77f0a696dad8801","receipt":{"algorithm":"ed25519","builder_version":"pith-number-builder-2026-05-17-v1","canonical_sha256":"76069f4ecd8c2118b24775239846e94fa52dae5dd8ff760bd77f0a696dad8801","first_computed_at":"2026-05-17T23:44:48.560756Z","key_id":"pith-v1-2026-05","kind":"pith_receipt","last_reissued_at":"2026-05-17T23:44:48.560756Z","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54","receipt_version":"0.3","signature_b64":"LjR+Hf5OmBYVw+KpTjTM9xcVUC/AeQ2ac/x19NekGBh/99vGWxHTTAK06UX9XBbv0j8MW9/hEglthyNNqOgoDg==","signature_status":"signed_v1","signed_at":"2026-05-17T23:44:48.561370Z","signed_message":"canonical_sha256_bytes"},"source_id":"1704.02255","source_kind":"arxiv","source_version":1}}},"equivocations":[],"invalid_events":[],"applied_event_ids":["sha256:0aa59be807c0aad25d497e40206b765e7e5d44e2c7b4bfddab3e4cea152bf5a3","sha256:7a2ee48ff9cc82ce68ddc5c95fe2e0dae7e2dee2d37281cfbadb28f14e267a64"],"state_sha256":"57c84bc408aee0e375680ecdda2735351a4f9317141992ded0d30c507d9fca14"},"bundle_signature":{"signature_status":"signed_v1","algorithm":"ed25519","key_id":"pith-v1-2026-05","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54","signature_b64":"mE58wVXTRGMm0L2CDCEzWqkeva9pizRAcPtkeEk0o9cQpRF0W4C0TGBGAuBqbuEHKotr0G8jpg8tHc3lUnwZAQ==","signed_message":"bundle_sha256_bytes","signed_at":"2026-05-27T06:32:05.731797Z","bundle_sha256":"b39af44d800b6925bc88ecacc6163f0d2d6c33b138cc6830dbbee4b1e9c331e8"}}