{"bundle_type":"pith_open_graph_bundle","bundle_version":"1.0","pith_number":"pith:2016:7QK2AJ254M54UOV5VV5YS4I3BZ","short_pith_number":"pith:7QK2AJ25","canonical_record":{"source":{"id":"1601.01219","kind":"arxiv","version":1},"metadata":{"license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"cond-mat.mes-hall","submitted_at":"2016-01-06T15:59:19Z","cross_cats_sorted":["cond-mat.mtrl-sci"],"title_canon_sha256":"e613bd2db6e25795a5c42baae3dfb5c527c306353e536ba6480587062567ca48","abstract_canon_sha256":"0cfc46f0be0b0d8987d7a1a97537ed2b0c4007d581fbdf33ee61c5ed19240227"},"schema_version":"1.0"},"canonical_sha256":"fc15a0275de33bca3abdad7b89711b0e562f5bf6c3b7a4367f0e6f1d74eaf110","source":{"kind":"arxiv","id":"1601.01219","version":1},"source_aliases":[{"alias_kind":"arxiv","alias_value":"1601.01219","created_at":"2026-05-18T01:19:43Z"},{"alias_kind":"arxiv_version","alias_value":"1601.01219v1","created_at":"2026-05-18T01:19:43Z"},{"alias_kind":"doi","alias_value":"10.48550/arxiv.1601.01219","created_at":"2026-05-18T01:19:43Z"},{"alias_kind":"pith_short_12","alias_value":"7QK2AJ254M54","created_at":"2026-05-18T12:30:04Z"},{"alias_kind":"pith_short_16","alias_value":"7QK2AJ254M54UOV5","created_at":"2026-05-18T12:30:04Z"},{"alias_kind":"pith_short_8","alias_value":"7QK2AJ25","created_at":"2026-05-18T12:30:04Z"}],"events":[{"event_type":"record_created","subject_pith_number":"pith:2016:7QK2AJ254M54UOV5VV5YS4I3BZ","target":"record","payload":{"canonical_record":{"source":{"id":"1601.01219","kind":"arxiv","version":1},"metadata":{"license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"cond-mat.mes-hall","submitted_at":"2016-01-06T15:59:19Z","cross_cats_sorted":["cond-mat.mtrl-sci"],"title_canon_sha256":"e613bd2db6e25795a5c42baae3dfb5c527c306353e536ba6480587062567ca48","abstract_canon_sha256":"0cfc46f0be0b0d8987d7a1a97537ed2b0c4007d581fbdf33ee61c5ed19240227"},"schema_version":"1.0"},"canonical_sha256":"fc15a0275de33bca3abdad7b89711b0e562f5bf6c3b7a4367f0e6f1d74eaf110","receipt":{"kind":"pith_receipt","key_id":"pith-v1-2026-05","algorithm":"ed25519","signed_at":"2026-05-18T01:19:43.893491Z","signature_b64":"VeSIwK3bzpyDA111QPKMcUrDzZTGUloCDrPzJMIQlSJapaI3Qm53ezGLnECnB8jZ3Q2eDpqlB2fb8FhKXQdLAQ==","signed_message":"canonical_sha256_bytes","builder_version":"pith-number-builder-2026-05-17-v1","receipt_version":"0.3","canonical_sha256":"fc15a0275de33bca3abdad7b89711b0e562f5bf6c3b7a4367f0e6f1d74eaf110","last_reissued_at":"2026-05-18T01:19:43.892820Z","signature_status":"signed_v1","first_computed_at":"2026-05-18T01:19:43.892820Z","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54"},"source_kind":"arxiv","source_id":"1601.01219","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":"2026-05-18T01:19:43Z","supersedes":[],"prev_event":null,"signature":{"signature_status":"signed_v1","algorithm":"ed25519","key_id":"pith-v1-2026-05","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54","signature_b64":"SY5+CVGbtQCMslrFliipAdvEFHwgcdNcRrCME/LGmnZO9Szo5he0lUQwZgWvrWiMRnaU8Cb38+wu29aObc0tDA==","signed_message":"open_graph_event_sha256_bytes","signed_at":"2026-06-21T16:51:03.393557Z"},"content_sha256":"452028cdda77522aed364a35808575f9614e213019b809ebd000d7848cef5bba","schema_version":"1.0","event_id":"sha256:452028cdda77522aed364a35808575f9614e213019b809ebd000d7848cef5bba"},{"event_type":"graph_snapshot","subject_pith_number":"pith:2016:7QK2AJ254M54UOV5VV5YS4I3BZ","target":"graph","payload":{"graph_snapshot":{"paper":{"title":"Dynamic response of an artificial square spin ice","license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","headline":"","cross_cats":["cond-mat.mtrl-sci"],"primary_cat":"cond-mat.mes-hall","authors_text":"A. Hoffmann, E. Iacocca, J. B. Ketterson, J. Ding, J. E. Pearson, J. Sklenar, M. B. Jungfleisch, O. Heinonen, S. Zhang, V. Novosad, W. Jiang, W. Zhang","submitted_at":"2016-01-06T15:59:19Z","abstract_excerpt":"Magnetization dynamics in an artificial square spin-ice lattice made of Ni80Fe20 with magnetic field applied in the lattice plane is investigated by broadband ferromagnetic resonance spectroscopy. The experimentally observed dispersion shows a rich spectrum of modes corresponding to different magnetization states. These magnetization states are determined by exchange and dipolar interaction between individual islands, as is confirmed by a semianalytical model. In the low field regime below 400 Oe a hysteretic behavior in the mode spectrum is found. Micromagnetic simulations reveal that the ori"},"claims":{"count":0,"items":[],"snapshot_sha256":"258153158e38e3291e3d48162225fcdb2d5a3ed65a07baac614ab91432fd4f57"},"source":{"id":"1601.01219","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":"2026-05-18T01:19:43Z","supersedes":[],"prev_event":null,"signature":{"signature_status":"signed_v1","algorithm":"ed25519","key_id":"pith-v1-2026-05","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54","signature_b64":"Vn0aXmXqhjFAyizNeR1wjvx2u+jYtgKhZd4UDVC3/Ir4MmL1Heyc9xWxLwL2lCju2FMe9XJ2J0duswPaNjoNAQ==","signed_message":"open_graph_event_sha256_bytes","signed_at":"2026-06-21T16:51:03.393917Z"},"content_sha256":"a60297a0fdae13b823874021172d9fc0a02594de0c5c69250acddf607e2bd8b1","schema_version":"1.0","event_id":"sha256:a60297a0fdae13b823874021172d9fc0a02594de0c5c69250acddf607e2bd8b1"}],"timestamp_proofs":[],"mirror_hints":[{"mirror_type":"https","name":"Pith Resolver","base_url":"https://pith.science","bundle_url":"https://pith.science/pith/7QK2AJ254M54UOV5VV5YS4I3BZ/bundle.json","state_url":"https://pith.science/pith/7QK2AJ254M54UOV5VV5YS4I3BZ/state.json","well_known_bundle_url":"https://pith.science/.well-known/pith/7QK2AJ254M54UOV5VV5YS4I3BZ/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":"2026-06-21T16:51:03Z","links":{"resolver":"https://pith.science/pith/7QK2AJ254M54UOV5VV5YS4I3BZ","bundle":"https://pith.science/pith/7QK2AJ254M54UOV5VV5YS4I3BZ/bundle.json","state":"https://pith.science/pith/7QK2AJ254M54UOV5VV5YS4I3BZ/state.json","well_known_bundle":"https://pith.science/.well-known/pith/7QK2AJ254M54UOV5VV5YS4I3BZ/bundle.json"},"state":{"state_type":"pith_open_graph_state","state_version":"1.0","pith_number":"pith:2016:7QK2AJ254M54UOV5VV5YS4I3BZ","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":"0cfc46f0be0b0d8987d7a1a97537ed2b0c4007d581fbdf33ee61c5ed19240227","cross_cats_sorted":["cond-mat.mtrl-sci"],"license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"cond-mat.mes-hall","submitted_at":"2016-01-06T15:59:19Z","title_canon_sha256":"e613bd2db6e25795a5c42baae3dfb5c527c306353e536ba6480587062567ca48"},"schema_version":"1.0","source":{"id":"1601.01219","kind":"arxiv","version":1}},"source_aliases":[{"alias_kind":"arxiv","alias_value":"1601.01219","created_at":"2026-05-18T01:19:43Z"},{"alias_kind":"arxiv_version","alias_value":"1601.01219v1","created_at":"2026-05-18T01:19:43Z"},{"alias_kind":"doi","alias_value":"10.48550/arxiv.1601.01219","created_at":"2026-05-18T01:19:43Z"},{"alias_kind":"pith_short_12","alias_value":"7QK2AJ254M54","created_at":"2026-05-18T12:30:04Z"},{"alias_kind":"pith_short_16","alias_value":"7QK2AJ254M54UOV5","created_at":"2026-05-18T12:30:04Z"},{"alias_kind":"pith_short_8","alias_value":"7QK2AJ25","created_at":"2026-05-18T12:30:04Z"}],"graph_snapshots":[{"event_id":"sha256:a60297a0fdae13b823874021172d9fc0a02594de0c5c69250acddf607e2bd8b1","target":"graph","created_at":"2026-05-18T01:19:43Z","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":"Magnetization dynamics in an artificial square spin-ice lattice made of Ni80Fe20 with magnetic field applied in the lattice plane is investigated by broadband ferromagnetic resonance spectroscopy. The experimentally observed dispersion shows a rich spectrum of modes corresponding to different magnetization states. These magnetization states are determined by exchange and dipolar interaction between individual islands, as is confirmed by a semianalytical model. In the low field regime below 400 Oe a hysteretic behavior in the mode spectrum is found. Micromagnetic simulations reveal that the ori","authors_text":"A. Hoffmann, E. Iacocca, J. B. Ketterson, J. Ding, J. E. Pearson, J. Sklenar, M. B. Jungfleisch, O. Heinonen, S. Zhang, V. Novosad, W. Jiang, W. Zhang","cross_cats":["cond-mat.mtrl-sci"],"headline":"","license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"cond-mat.mes-hall","submitted_at":"2016-01-06T15:59:19Z","title":"Dynamic response of an artificial square spin ice"},"references":{"count":0,"internal_anchors":0,"resolved_work":0,"sample":[],"snapshot_sha256":"258153158e38e3291e3d48162225fcdb2d5a3ed65a07baac614ab91432fd4f57"},"source":{"id":"1601.01219","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":"sha256:452028cdda77522aed364a35808575f9614e213019b809ebd000d7848cef5bba","target":"record","created_at":"2026-05-18T01:19:43Z","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":"0cfc46f0be0b0d8987d7a1a97537ed2b0c4007d581fbdf33ee61c5ed19240227","cross_cats_sorted":["cond-mat.mtrl-sci"],"license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"cond-mat.mes-hall","submitted_at":"2016-01-06T15:59:19Z","title_canon_sha256":"e613bd2db6e25795a5c42baae3dfb5c527c306353e536ba6480587062567ca48"},"schema_version":"1.0","source":{"id":"1601.01219","kind":"arxiv","version":1}},"canonical_sha256":"fc15a0275de33bca3abdad7b89711b0e562f5bf6c3b7a4367f0e6f1d74eaf110","receipt":{"algorithm":"ed25519","builder_version":"pith-number-builder-2026-05-17-v1","canonical_sha256":"fc15a0275de33bca3abdad7b89711b0e562f5bf6c3b7a4367f0e6f1d74eaf110","first_computed_at":"2026-05-18T01:19:43.892820Z","key_id":"pith-v1-2026-05","kind":"pith_receipt","last_reissued_at":"2026-05-18T01:19:43.892820Z","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54","receipt_version":"0.3","signature_b64":"VeSIwK3bzpyDA111QPKMcUrDzZTGUloCDrPzJMIQlSJapaI3Qm53ezGLnECnB8jZ3Q2eDpqlB2fb8FhKXQdLAQ==","signature_status":"signed_v1","signed_at":"2026-05-18T01:19:43.893491Z","signed_message":"canonical_sha256_bytes"},"source_id":"1601.01219","source_kind":"arxiv","source_version":1}}},"equivocations":[],"invalid_events":[],"applied_event_ids":["sha256:452028cdda77522aed364a35808575f9614e213019b809ebd000d7848cef5bba","sha256:a60297a0fdae13b823874021172d9fc0a02594de0c5c69250acddf607e2bd8b1"],"state_sha256":"04f71072c24e08d6a2b8d05005314f1c7b6e1d488e475cb580115e49a9d55d81"},"bundle_signature":{"signature_status":"signed_v1","algorithm":"ed25519","key_id":"pith-v1-2026-05","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54","signature_b64":"W/VYihfp8gxfp8Br1lV7COGxszujlW5BzKy66YzMDRXl7/6yK3MzMvJ/ElQCqpw48xbzIw4rPTJUU/JJzT9rCA==","signed_message":"bundle_sha256_bytes","signed_at":"2026-06-21T16:51:03.395898Z","bundle_sha256":"eae265ea6ac95c311acbc8d4657abdf766ceaaf03a027072e89527f429fb711f"}}