{"bundle_type":"pith_open_graph_bundle","bundle_version":"1.0","pith_number":"pith:2025:BPMQD2FZ4AQ7AFNSCSKGMAB5F4","short_pith_number":"pith:BPMQD2FZ","canonical_record":{"source":{"id":"2509.11005","kind":"arxiv","version":1},"metadata":{"license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"cond-mat.mes-hall","submitted_at":"2025-09-13T23:09:34Z","cross_cats_sorted":["cond-mat.mtrl-sci"],"title_canon_sha256":"64f7c20868b30e29be75f8f5bd74797da4a155dca44894476d36b6ce8d0a1e6f","abstract_canon_sha256":"7433029c65d1f950747a70a58f4d82c767201c5717ed09475d585384a6cad8f1"},"schema_version":"1.0"},"canonical_sha256":"0bd901e8b9e021f015b2149466003d2f0603e1017f9e84dcfc477c1202f3f26f","source":{"kind":"arxiv","id":"2509.11005","version":1},"source_aliases":[{"alias_kind":"arxiv","alias_value":"2509.11005","created_at":"2026-07-05T12:11:31Z"},{"alias_kind":"arxiv_version","alias_value":"2509.11005v1","created_at":"2026-07-05T12:11:31Z"},{"alias_kind":"doi","alias_value":"10.48550/arxiv.2509.11005","created_at":"2026-07-05T12:11:31Z"},{"alias_kind":"pith_short_12","alias_value":"BPMQD2FZ4AQ7","created_at":"2026-07-05T12:11:31Z"},{"alias_kind":"pith_short_16","alias_value":"BPMQD2FZ4AQ7AFNS","created_at":"2026-07-05T12:11:31Z"},{"alias_kind":"pith_short_8","alias_value":"BPMQD2FZ","created_at":"2026-07-05T12:11:31Z"}],"events":[{"event_type":"record_created","subject_pith_number":"pith:2025:BPMQD2FZ4AQ7AFNSCSKGMAB5F4","target":"record","payload":{"canonical_record":{"source":{"id":"2509.11005","kind":"arxiv","version":1},"metadata":{"license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"cond-mat.mes-hall","submitted_at":"2025-09-13T23:09:34Z","cross_cats_sorted":["cond-mat.mtrl-sci"],"title_canon_sha256":"64f7c20868b30e29be75f8f5bd74797da4a155dca44894476d36b6ce8d0a1e6f","abstract_canon_sha256":"7433029c65d1f950747a70a58f4d82c767201c5717ed09475d585384a6cad8f1"},"schema_version":"1.0"},"canonical_sha256":"0bd901e8b9e021f015b2149466003d2f0603e1017f9e84dcfc477c1202f3f26f","receipt":{"kind":"pith_receipt","key_id":"pith-v1-2026-05","algorithm":"ed25519","signed_at":"2026-07-05T12:11:31.773408Z","signature_b64":"H5h2TnrFu0nl9kWOaCbKbvptMRBXJSbNjwBmzIkS2sLI4ypAinpq70jpfLLXJLtz95KPqCDt5VhVim/n1t2oBQ==","signed_message":"canonical_sha256_bytes","builder_version":"pith-number-builder-2026-05-17-v1","receipt_version":"0.3","canonical_sha256":"0bd901e8b9e021f015b2149466003d2f0603e1017f9e84dcfc477c1202f3f26f","last_reissued_at":"2026-07-05T12:11:31.772935Z","signature_status":"signed_v1","first_computed_at":"2026-07-05T12:11:31.772935Z","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54"},"source_kind":"arxiv","source_id":"2509.11005","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":"2026-07-05T12:11:31Z","supersedes":[],"prev_event":null,"signature":{"signature_status":"signed_v1","algorithm":"ed25519","key_id":"pith-v1-2026-05","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54","signature_b64":"uSKVz29fxBtdRqRlm+I/IZsoywW/S4YOzIf6D4gGKXgwfEA/tRWbKosQYGrFCs/VxdDQCAIbMXAPUksjKa92Dw==","signed_message":"open_graph_event_sha256_bytes","signed_at":"2026-07-06T14:51:40.070717Z"},"content_sha256":"d29e10dcb8bc8c7360298dd295c8e468541a0a6dc15cc01b578d9dd82aecd916","schema_version":"1.0","event_id":"sha256:d29e10dcb8bc8c7360298dd295c8e468541a0a6dc15cc01b578d9dd82aecd916"},{"event_type":"graph_snapshot","subject_pith_number":"pith:2025:BPMQD2FZ4AQ7AFNSCSKGMAB5F4","target":"graph","payload":{"graph_snapshot":{"paper":{"title":"Absence of detectable spin and orbital pumping from Ni to Nb by out-of-plane ferromagnetic resonance","license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","headline":"","cross_cats":["cond-mat.mtrl-sci"],"primary_cat":"cond-mat.mes-hall","authors_text":"Christoph Klewe, Galen T. Street, Omolara A. Bakare, Rachel E. Maizel, Sachli Abdizadeh, Satoru Emori","submitted_at":"2025-09-13T23:09:34Z","abstract_excerpt":"Excited ferromagnets can pump spin angular momentum, along with possibly orbital angular momentum. Among elemental ferromagnets, Ni has been proposed to exhibit substantial orbital pumping relative to spin pumping. Here, we search for a signature of orbital pumping by Ni, specifically by comparing out-of-plane ferromagnetic resonance in heterostructures without Ni (FeV/Nb) and with Ni (FeV-Ni/Nb). The FeV/Nb series shows a clear increase in Gilbert damping with the Nb sink thickness, attributed to spin pumping from FeV to Nb. Surprisingly, the FeV-Ni/Nb series exhibits no such damping increase"},"claims":{"count":0,"items":[],"snapshot_sha256":"258153158e38e3291e3d48162225fcdb2d5a3ed65a07baac614ab91432fd4f57"},"source":{"id":"2509.11005","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/2509.11005/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":"2026-07-05T12:11:31Z","supersedes":[],"prev_event":null,"signature":{"signature_status":"signed_v1","algorithm":"ed25519","key_id":"pith-v1-2026-05","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54","signature_b64":"ZPY+LgRSZ4jMTsTtdNv2Vh9ipoVpk66E+o7LbdkScPCKXrrG9hxT62ACG8Ll381C/KjvAuywla56PXDQ3CMIAg==","signed_message":"open_graph_event_sha256_bytes","signed_at":"2026-07-06T14:51:40.071143Z"},"content_sha256":"2ac4c8ff2e7dbe8344d9ecaee0d4506d4f1aa8dc2f0ce87fb04ea0530226e255","schema_version":"1.0","event_id":"sha256:2ac4c8ff2e7dbe8344d9ecaee0d4506d4f1aa8dc2f0ce87fb04ea0530226e255"}],"timestamp_proofs":[],"mirror_hints":[{"mirror_type":"https","name":"Pith Resolver","base_url":"https://pith.science","bundle_url":"https://pith.science/pith/BPMQD2FZ4AQ7AFNSCSKGMAB5F4/bundle.json","state_url":"https://pith.science/pith/BPMQD2FZ4AQ7AFNSCSKGMAB5F4/state.json","well_known_bundle_url":"https://pith.science/.well-known/pith/BPMQD2FZ4AQ7AFNSCSKGMAB5F4/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":"2026-07-06T14:51:40Z","links":{"resolver":"https://pith.science/pith/BPMQD2FZ4AQ7AFNSCSKGMAB5F4","bundle":"https://pith.science/pith/BPMQD2FZ4AQ7AFNSCSKGMAB5F4/bundle.json","state":"https://pith.science/pith/BPMQD2FZ4AQ7AFNSCSKGMAB5F4/state.json","well_known_bundle":"https://pith.science/.well-known/pith/BPMQD2FZ4AQ7AFNSCSKGMAB5F4/bundle.json"},"state":{"state_type":"pith_open_graph_state","state_version":"1.0","pith_number":"pith:2025:BPMQD2FZ4AQ7AFNSCSKGMAB5F4","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":"7433029c65d1f950747a70a58f4d82c767201c5717ed09475d585384a6cad8f1","cross_cats_sorted":["cond-mat.mtrl-sci"],"license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"cond-mat.mes-hall","submitted_at":"2025-09-13T23:09:34Z","title_canon_sha256":"64f7c20868b30e29be75f8f5bd74797da4a155dca44894476d36b6ce8d0a1e6f"},"schema_version":"1.0","source":{"id":"2509.11005","kind":"arxiv","version":1}},"source_aliases":[{"alias_kind":"arxiv","alias_value":"2509.11005","created_at":"2026-07-05T12:11:31Z"},{"alias_kind":"arxiv_version","alias_value":"2509.11005v1","created_at":"2026-07-05T12:11:31Z"},{"alias_kind":"doi","alias_value":"10.48550/arxiv.2509.11005","created_at":"2026-07-05T12:11:31Z"},{"alias_kind":"pith_short_12","alias_value":"BPMQD2FZ4AQ7","created_at":"2026-07-05T12:11:31Z"},{"alias_kind":"pith_short_16","alias_value":"BPMQD2FZ4AQ7AFNS","created_at":"2026-07-05T12:11:31Z"},{"alias_kind":"pith_short_8","alias_value":"BPMQD2FZ","created_at":"2026-07-05T12:11:31Z"}],"graph_snapshots":[{"event_id":"sha256:2ac4c8ff2e7dbe8344d9ecaee0d4506d4f1aa8dc2f0ce87fb04ea0530226e255","target":"graph","created_at":"2026-07-05T12:11:31Z","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/2509.11005/integrity.json","findings":[],"snapshot_sha256":"c28c3603d3b5d939e8dc4c7e95fa8dfce3d595e45f758748cecf8e644a296938","summary":{"advisory":0,"by_detector":{},"critical":0,"informational":0}},"paper":{"abstract_excerpt":"Excited ferromagnets can pump spin angular momentum, along with possibly orbital angular momentum. Among elemental ferromagnets, Ni has been proposed to exhibit substantial orbital pumping relative to spin pumping. Here, we search for a signature of orbital pumping by Ni, specifically by comparing out-of-plane ferromagnetic resonance in heterostructures without Ni (FeV/Nb) and with Ni (FeV-Ni/Nb). The FeV/Nb series shows a clear increase in Gilbert damping with the Nb sink thickness, attributed to spin pumping from FeV to Nb. Surprisingly, the FeV-Ni/Nb series exhibits no such damping increase","authors_text":"Christoph Klewe, Galen T. Street, Omolara A. Bakare, Rachel E. Maizel, Sachli Abdizadeh, Satoru Emori","cross_cats":["cond-mat.mtrl-sci"],"headline":"","license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"cond-mat.mes-hall","submitted_at":"2025-09-13T23:09:34Z","title":"Absence of detectable spin and orbital pumping from Ni to Nb by out-of-plane ferromagnetic resonance"},"references":{"count":0,"internal_anchors":0,"resolved_work":0,"sample":[],"snapshot_sha256":"258153158e38e3291e3d48162225fcdb2d5a3ed65a07baac614ab91432fd4f57"},"source":{"id":"2509.11005","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:d29e10dcb8bc8c7360298dd295c8e468541a0a6dc15cc01b578d9dd82aecd916","target":"record","created_at":"2026-07-05T12:11:31Z","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":"7433029c65d1f950747a70a58f4d82c767201c5717ed09475d585384a6cad8f1","cross_cats_sorted":["cond-mat.mtrl-sci"],"license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"cond-mat.mes-hall","submitted_at":"2025-09-13T23:09:34Z","title_canon_sha256":"64f7c20868b30e29be75f8f5bd74797da4a155dca44894476d36b6ce8d0a1e6f"},"schema_version":"1.0","source":{"id":"2509.11005","kind":"arxiv","version":1}},"canonical_sha256":"0bd901e8b9e021f015b2149466003d2f0603e1017f9e84dcfc477c1202f3f26f","receipt":{"algorithm":"ed25519","builder_version":"pith-number-builder-2026-05-17-v1","canonical_sha256":"0bd901e8b9e021f015b2149466003d2f0603e1017f9e84dcfc477c1202f3f26f","first_computed_at":"2026-07-05T12:11:31.772935Z","key_id":"pith-v1-2026-05","kind":"pith_receipt","last_reissued_at":"2026-07-05T12:11:31.772935Z","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54","receipt_version":"0.3","signature_b64":"H5h2TnrFu0nl9kWOaCbKbvptMRBXJSbNjwBmzIkS2sLI4ypAinpq70jpfLLXJLtz95KPqCDt5VhVim/n1t2oBQ==","signature_status":"signed_v1","signed_at":"2026-07-05T12:11:31.773408Z","signed_message":"canonical_sha256_bytes"},"source_id":"2509.11005","source_kind":"arxiv","source_version":1}}},"equivocations":[],"invalid_events":[],"applied_event_ids":["sha256:d29e10dcb8bc8c7360298dd295c8e468541a0a6dc15cc01b578d9dd82aecd916","sha256:2ac4c8ff2e7dbe8344d9ecaee0d4506d4f1aa8dc2f0ce87fb04ea0530226e255"],"state_sha256":"a10d1835085a79cd42ad2935f5f3560b1207ddf0c0bf4c0d9954590f8d4bdfab"},"bundle_signature":{"signature_status":"signed_v1","algorithm":"ed25519","key_id":"pith-v1-2026-05","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54","signature_b64":"/nhfGY1ezqFk0+KRIsYV/fT5TAQjwZp3ZDJ11Z2Ze4VDAsCdLpqVXRcyAzsCE1lpVOyzDFrZEsEI4QepRcn9Bg==","signed_message":"bundle_sha256_bytes","signed_at":"2026-07-06T14:51:40.073208Z","bundle_sha256":"0d243040026bada4c43ab74b6ec308c7546626ef8b43b6e3fda6f1fb81689c86"}}