{"bundle_type":"pith_open_graph_bundle","bundle_version":"1.0","pith_number":"pith:2019:Z63KJPOUSL63DETMAQ5EF7DH3T","short_pith_number":"pith:Z63KJPOU","canonical_record":{"source":{"id":"1904.11321","kind":"arxiv","version":3},"metadata":{"license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"cond-mat.mtrl-sci","submitted_at":"2019-04-25T13:21:31Z","cross_cats_sorted":["cond-mat.mes-hall"],"title_canon_sha256":"e91c552837a361155c54e762961883983d957d3a442ebab170b558a0ac147261","abstract_canon_sha256":"03c8d67944a255fb6a0e310adb151e3e5da93edf81b0ff1cb9e69ce4e71e419c"},"schema_version":"1.0"},"canonical_sha256":"cfb6a4bdd492fdb1926c043a42fc67dcc81e2b51dc5dbc84e89475659ef35d90","source":{"kind":"arxiv","id":"1904.11321","version":3},"source_aliases":[{"alias_kind":"arxiv","alias_value":"1904.11321","created_at":"2026-07-05T00:09:14Z"},{"alias_kind":"arxiv_version","alias_value":"1904.11321v3","created_at":"2026-07-05T00:09:14Z"},{"alias_kind":"doi","alias_value":"10.48550/arxiv.1904.11321","created_at":"2026-07-05T00:09:14Z"},{"alias_kind":"pith_short_12","alias_value":"Z63KJPOUSL63","created_at":"2026-07-05T00:09:14Z"},{"alias_kind":"pith_short_16","alias_value":"Z63KJPOUSL63DETM","created_at":"2026-07-05T00:09:14Z"},{"alias_kind":"pith_short_8","alias_value":"Z63KJPOU","created_at":"2026-07-05T00:09:14Z"}],"events":[{"event_type":"record_created","subject_pith_number":"pith:2019:Z63KJPOUSL63DETMAQ5EF7DH3T","target":"record","payload":{"canonical_record":{"source":{"id":"1904.11321","kind":"arxiv","version":3},"metadata":{"license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"cond-mat.mtrl-sci","submitted_at":"2019-04-25T13:21:31Z","cross_cats_sorted":["cond-mat.mes-hall"],"title_canon_sha256":"e91c552837a361155c54e762961883983d957d3a442ebab170b558a0ac147261","abstract_canon_sha256":"03c8d67944a255fb6a0e310adb151e3e5da93edf81b0ff1cb9e69ce4e71e419c"},"schema_version":"1.0"},"canonical_sha256":"cfb6a4bdd492fdb1926c043a42fc67dcc81e2b51dc5dbc84e89475659ef35d90","receipt":{"kind":"pith_receipt","key_id":"pith-v1-2026-05","algorithm":"ed25519","signed_at":"2026-07-05T00:09:14.476470Z","signature_b64":"/SvaXrnHbTawS4D4TN5l9qc3KvQl63VEt97toRRgKYgM6VDSN9QN12tk+PlZM+6L3Ol0a1YzNcwLIZC0EUWxAw==","signed_message":"canonical_sha256_bytes","builder_version":"pith-number-builder-2026-05-17-v1","receipt_version":"0.3","canonical_sha256":"cfb6a4bdd492fdb1926c043a42fc67dcc81e2b51dc5dbc84e89475659ef35d90","last_reissued_at":"2026-07-05T00:09:14.476021Z","signature_status":"signed_v1","first_computed_at":"2026-07-05T00:09:14.476021Z","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54"},"source_kind":"arxiv","source_id":"1904.11321","source_version":3,"attestation_state":"computed"},"signer":{"signer_id":"pith.science","signer_type":"pith_registry","key_id":"pith-v1-2026-05","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54"},"created_at":"2026-07-05T00:09:14Z","supersedes":[],"prev_event":null,"signature":{"signature_status":"signed_v1","algorithm":"ed25519","key_id":"pith-v1-2026-05","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54","signature_b64":"ZT+eppqasflLZNeEkl+kfzfYL5TOuP01CDKw/5ebyHmpPzsWV1guDyQ9YoHCxDS4ThVupr80tFoZALvhd7IAAg==","signed_message":"open_graph_event_sha256_bytes","signed_at":"2026-07-07T10:32:01.872747Z"},"content_sha256":"3f6aa56e910afbdc8ad92f4496dcec60cbfeab410d6f0f29e09bce914cb2342f","schema_version":"1.0","event_id":"sha256:3f6aa56e910afbdc8ad92f4496dcec60cbfeab410d6f0f29e09bce914cb2342f"},{"event_type":"graph_snapshot","subject_pith_number":"pith:2019:Z63KJPOUSL63DETMAQ5EF7DH3T","target":"graph","payload":{"graph_snapshot":{"paper":{"title":"High Spin-Wave Propagation Length Consistent with Low Damping in a Metallic Ferromagnet","license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","headline":"","cross_cats":["cond-mat.mes-hall"],"primary_cat":"cond-mat.mtrl-sci","authors_text":"Aleksandr Buzdakov, Eric R. J. Edwards, Hans Huebl, Hans T. Nembach, Helmut Schultheiss, Justin M. Shaw, Katrin Schultheiss, Luis Flacke, Lukas Liensberger, Mathias Weiler, Matthias Althammer, Rudolf Gross, Stephan Gepr\\\"ags, Tobias Hula","submitted_at":"2019-04-25T13:21:31Z","abstract_excerpt":"We report ultra-low intrinsic magnetic damping in Co$_{\\text{25}}$Fe$_{\\text{75}}$ heterostructures, reaching the low $10^{-4}$ regime at room temperature. By using a broadband ferromagnetic resonance technique, we extracted the dynamic magnetic properties of several Co$_{\\text{25}}$Fe$_{\\text{75}}$-based heterostructures with varying ferromagnetic layer thickness. By estimating the eddy current contribution to damping, measuring radiative damping and spin pumping effects, we found the intrinsic damping of a 26\\,nm thick sample to be $$\\alpha_{\\mathrm{0}} \\lesssim 3.18\\times10^{-4}$. Furthermo"},"claims":{"count":0,"items":[],"snapshot_sha256":"258153158e38e3291e3d48162225fcdb2d5a3ed65a07baac614ab91432fd4f57"},"source":{"id":"1904.11321","kind":"arxiv","version":3},"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/1904.11321/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":"2026-07-05T00:09:14Z","supersedes":[],"prev_event":null,"signature":{"signature_status":"signed_v1","algorithm":"ed25519","key_id":"pith-v1-2026-05","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54","signature_b64":"rwP5DzQM50ho1XaCzMeewVCLjccVPFE7F6rj8soab+19rNaWYjas2+AgYQ3bMKOtu7FLnf+BS/7Ui+9de9IpDw==","signed_message":"open_graph_event_sha256_bytes","signed_at":"2026-07-07T10:32:01.873124Z"},"content_sha256":"2c4899a41f84d049fa7dea77bb553a9970f93174e1b51a8b65b30e71821b68a7","schema_version":"1.0","event_id":"sha256:2c4899a41f84d049fa7dea77bb553a9970f93174e1b51a8b65b30e71821b68a7"}],"timestamp_proofs":[],"mirror_hints":[{"mirror_type":"https","name":"Pith Resolver","base_url":"https://pith.science","bundle_url":"https://pith.science/pith/Z63KJPOUSL63DETMAQ5EF7DH3T/bundle.json","state_url":"https://pith.science/pith/Z63KJPOUSL63DETMAQ5EF7DH3T/state.json","well_known_bundle_url":"https://pith.science/.well-known/pith/Z63KJPOUSL63DETMAQ5EF7DH3T/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":"2026-07-07T10:32:01Z","links":{"resolver":"https://pith.science/pith/Z63KJPOUSL63DETMAQ5EF7DH3T","bundle":"https://pith.science/pith/Z63KJPOUSL63DETMAQ5EF7DH3T/bundle.json","state":"https://pith.science/pith/Z63KJPOUSL63DETMAQ5EF7DH3T/state.json","well_known_bundle":"https://pith.science/.well-known/pith/Z63KJPOUSL63DETMAQ5EF7DH3T/bundle.json"},"state":{"state_type":"pith_open_graph_state","state_version":"1.0","pith_number":"pith:2019:Z63KJPOUSL63DETMAQ5EF7DH3T","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":"03c8d67944a255fb6a0e310adb151e3e5da93edf81b0ff1cb9e69ce4e71e419c","cross_cats_sorted":["cond-mat.mes-hall"],"license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"cond-mat.mtrl-sci","submitted_at":"2019-04-25T13:21:31Z","title_canon_sha256":"e91c552837a361155c54e762961883983d957d3a442ebab170b558a0ac147261"},"schema_version":"1.0","source":{"id":"1904.11321","kind":"arxiv","version":3}},"source_aliases":[{"alias_kind":"arxiv","alias_value":"1904.11321","created_at":"2026-07-05T00:09:14Z"},{"alias_kind":"arxiv_version","alias_value":"1904.11321v3","created_at":"2026-07-05T00:09:14Z"},{"alias_kind":"doi","alias_value":"10.48550/arxiv.1904.11321","created_at":"2026-07-05T00:09:14Z"},{"alias_kind":"pith_short_12","alias_value":"Z63KJPOUSL63","created_at":"2026-07-05T00:09:14Z"},{"alias_kind":"pith_short_16","alias_value":"Z63KJPOUSL63DETM","created_at":"2026-07-05T00:09:14Z"},{"alias_kind":"pith_short_8","alias_value":"Z63KJPOU","created_at":"2026-07-05T00:09:14Z"}],"graph_snapshots":[{"event_id":"sha256:2c4899a41f84d049fa7dea77bb553a9970f93174e1b51a8b65b30e71821b68a7","target":"graph","created_at":"2026-07-05T00:09:14Z","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/1904.11321/integrity.json","findings":[],"snapshot_sha256":"c28c3603d3b5d939e8dc4c7e95fa8dfce3d595e45f758748cecf8e644a296938","summary":{"advisory":0,"by_detector":{},"critical":0,"informational":0}},"paper":{"abstract_excerpt":"We report ultra-low intrinsic magnetic damping in Co$_{\\text{25}}$Fe$_{\\text{75}}$ heterostructures, reaching the low $10^{-4}$ regime at room temperature. By using a broadband ferromagnetic resonance technique, we extracted the dynamic magnetic properties of several Co$_{\\text{25}}$Fe$_{\\text{75}}$-based heterostructures with varying ferromagnetic layer thickness. By estimating the eddy current contribution to damping, measuring radiative damping and spin pumping effects, we found the intrinsic damping of a 26\\,nm thick sample to be $$\\alpha_{\\mathrm{0}} \\lesssim 3.18\\times10^{-4}$. Furthermo","authors_text":"Aleksandr Buzdakov, Eric R. J. Edwards, Hans Huebl, Hans T. Nembach, Helmut Schultheiss, Justin M. Shaw, Katrin Schultheiss, Luis Flacke, Lukas Liensberger, Mathias Weiler, Matthias Althammer, Rudolf Gross, Stephan Gepr\\\"ags, Tobias Hula","cross_cats":["cond-mat.mes-hall"],"headline":"","license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"cond-mat.mtrl-sci","submitted_at":"2019-04-25T13:21:31Z","title":"High Spin-Wave Propagation Length Consistent with Low Damping in a Metallic Ferromagnet"},"references":{"count":0,"internal_anchors":0,"resolved_work":0,"sample":[],"snapshot_sha256":"258153158e38e3291e3d48162225fcdb2d5a3ed65a07baac614ab91432fd4f57"},"source":{"id":"1904.11321","kind":"arxiv","version":3},"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":"sha256:3f6aa56e910afbdc8ad92f4496dcec60cbfeab410d6f0f29e09bce914cb2342f","target":"record","created_at":"2026-07-05T00:09:14Z","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":"03c8d67944a255fb6a0e310adb151e3e5da93edf81b0ff1cb9e69ce4e71e419c","cross_cats_sorted":["cond-mat.mes-hall"],"license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"cond-mat.mtrl-sci","submitted_at":"2019-04-25T13:21:31Z","title_canon_sha256":"e91c552837a361155c54e762961883983d957d3a442ebab170b558a0ac147261"},"schema_version":"1.0","source":{"id":"1904.11321","kind":"arxiv","version":3}},"canonical_sha256":"cfb6a4bdd492fdb1926c043a42fc67dcc81e2b51dc5dbc84e89475659ef35d90","receipt":{"algorithm":"ed25519","builder_version":"pith-number-builder-2026-05-17-v1","canonical_sha256":"cfb6a4bdd492fdb1926c043a42fc67dcc81e2b51dc5dbc84e89475659ef35d90","first_computed_at":"2026-07-05T00:09:14.476021Z","key_id":"pith-v1-2026-05","kind":"pith_receipt","last_reissued_at":"2026-07-05T00:09:14.476021Z","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54","receipt_version":"0.3","signature_b64":"/SvaXrnHbTawS4D4TN5l9qc3KvQl63VEt97toRRgKYgM6VDSN9QN12tk+PlZM+6L3Ol0a1YzNcwLIZC0EUWxAw==","signature_status":"signed_v1","signed_at":"2026-07-05T00:09:14.476470Z","signed_message":"canonical_sha256_bytes"},"source_id":"1904.11321","source_kind":"arxiv","source_version":3}}},"equivocations":[],"invalid_events":[],"applied_event_ids":["sha256:3f6aa56e910afbdc8ad92f4496dcec60cbfeab410d6f0f29e09bce914cb2342f","sha256:2c4899a41f84d049fa7dea77bb553a9970f93174e1b51a8b65b30e71821b68a7"],"state_sha256":"517a85cbf36916c605e1382a7979d7008584e81737a31c2811ecf0f93653654f"},"bundle_signature":{"signature_status":"signed_v1","algorithm":"ed25519","key_id":"pith-v1-2026-05","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54","signature_b64":"pl2C+2IxKGE0fSk3ez3/7yw1m3WNZRhPiqxp71BTX5SVAoTbN6eNpya3McxaVRBsRs2m3ByJdhdlrof4iodDAQ==","signed_message":"bundle_sha256_bytes","signed_at":"2026-07-07T10:32:01.875107Z","bundle_sha256":"720658e6672b1eee0bafba0a14fe878f33e2f125742d2ee17b7922024a8b26b6"}}