{"bundle_type":"pith_open_graph_bundle","bundle_version":"1.0","pith_number":"pith:2021:2GLUWGY2R6R6KH4WCB6ADFJFHV","short_pith_number":"pith:2GLUWGY2","canonical_record":{"source":{"id":"2102.04956","kind":"arxiv","version":1},"metadata":{"license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"cond-mat.mtrl-sci","submitted_at":"2021-02-09T17:12:06Z","cross_cats_sorted":["cond-mat.str-el","physics.app-ph"],"title_canon_sha256":"7a5d92ce550b7a86652a2902b72aeb0c67312d36cd2143ba1c4f26d1c3bf468c","abstract_canon_sha256":"a458299b35e3c3069a965554f983b0b493bac50147c2e18592cc3e91e8ca78e1"},"schema_version":"1.0"},"canonical_sha256":"d1974b1b1a8fa3e51f96107c0195253d7eb3c6f1621c2c8e9c97d7364d0f4036","source":{"kind":"arxiv","id":"2102.04956","version":1},"source_aliases":[{"alias_kind":"arxiv","alias_value":"2102.04956","created_at":"2026-07-05T02:36:03Z"},{"alias_kind":"arxiv_version","alias_value":"2102.04956v1","created_at":"2026-07-05T02:36:03Z"},{"alias_kind":"doi","alias_value":"10.48550/arxiv.2102.04956","created_at":"2026-07-05T02:36:03Z"},{"alias_kind":"pith_short_12","alias_value":"2GLUWGY2R6R6","created_at":"2026-07-05T02:36:03Z"},{"alias_kind":"pith_short_16","alias_value":"2GLUWGY2R6R6KH4W","created_at":"2026-07-05T02:36:03Z"},{"alias_kind":"pith_short_8","alias_value":"2GLUWGY2","created_at":"2026-07-05T02:36:03Z"}],"events":[{"event_type":"record_created","subject_pith_number":"pith:2021:2GLUWGY2R6R6KH4WCB6ADFJFHV","target":"record","payload":{"canonical_record":{"source":{"id":"2102.04956","kind":"arxiv","version":1},"metadata":{"license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"cond-mat.mtrl-sci","submitted_at":"2021-02-09T17:12:06Z","cross_cats_sorted":["cond-mat.str-el","physics.app-ph"],"title_canon_sha256":"7a5d92ce550b7a86652a2902b72aeb0c67312d36cd2143ba1c4f26d1c3bf468c","abstract_canon_sha256":"a458299b35e3c3069a965554f983b0b493bac50147c2e18592cc3e91e8ca78e1"},"schema_version":"1.0"},"canonical_sha256":"d1974b1b1a8fa3e51f96107c0195253d7eb3c6f1621c2c8e9c97d7364d0f4036","receipt":{"kind":"pith_receipt","key_id":"pith-v1-2026-05","algorithm":"ed25519","signed_at":"2026-07-05T02:36:03.981784Z","signature_b64":"JC4SznWmGEC6XW+HmOpDLBnagx8bFB5L08emyQ5BVg0OiMCkJIQF7w90++aeGQ/E9eFgK1AOVmL3ccGnzGnbCA==","signed_message":"canonical_sha256_bytes","builder_version":"pith-number-builder-2026-05-17-v1","receipt_version":"0.3","canonical_sha256":"d1974b1b1a8fa3e51f96107c0195253d7eb3c6f1621c2c8e9c97d7364d0f4036","last_reissued_at":"2026-07-05T02:36:03.981414Z","signature_status":"signed_v1","first_computed_at":"2026-07-05T02:36:03.981414Z","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54"},"source_kind":"arxiv","source_id":"2102.04956","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":"2026-07-05T02:36:03Z","supersedes":[],"prev_event":null,"signature":{"signature_status":"signed_v1","algorithm":"ed25519","key_id":"pith-v1-2026-05","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54","signature_b64":"1fXRfngnLuH19JzIqP0ZPhGzwxZUTlCUFWM4TZ4X3PLeQZxcxD5OE+nl30xQI4UH/1MPIg9f04yjpzkPVniABA==","signed_message":"open_graph_event_sha256_bytes","signed_at":"2026-08-06T13:24:35.228331Z"},"content_sha256":"48a6bc9ea8b15f3e29ba8a414f0e74d890b6e28d5e6978b0832bbcf120a6172e","schema_version":"1.0","event_id":"sha256:48a6bc9ea8b15f3e29ba8a414f0e74d890b6e28d5e6978b0832bbcf120a6172e"},{"event_type":"graph_snapshot","subject_pith_number":"pith:2021:2GLUWGY2R6R6KH4WCB6ADFJFHV","target":"graph","payload":{"graph_snapshot":{"paper":{"title":"Nonlinear Decay of Quantum Confined Magnons in Itinerant Ferromagnets","license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","headline":"","cross_cats":["cond-mat.str-el","physics.app-ph"],"primary_cat":"cond-mat.mtrl-sci","authors_text":"A. Ernst, A. Hjelt, I. V. Maznichenko, Kh. Zakeri, P. Buczek","submitted_at":"2021-02-09T17:12:06Z","abstract_excerpt":"Quantum confinement leads to the emergence of several magnon modes in ultrathin layered magnetic structures. We probe the lifetime of these quantum confined modes in a model system composed of three atomic layers of Co grown on different surfaces. We demonstrate that the quantum confined magnons exhibit nonlinear decay rates, which strongly depend on the mode number, in sharp contrast to what is assumed in the classical dynamics. Combining the experimental results with those of linear-response density functional calculations we provide a quantitative explanation for this nonlinear damping effe"},"claims":{"count":0,"items":[],"snapshot_sha256":"258153158e38e3291e3d48162225fcdb2d5a3ed65a07baac614ab91432fd4f57"},"source":{"id":"2102.04956","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/2102.04956/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":"2026-07-05T02:36:03Z","supersedes":[],"prev_event":null,"signature":{"signature_status":"signed_v1","algorithm":"ed25519","key_id":"pith-v1-2026-05","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54","signature_b64":"S2hXk+IqLkyMpCGd1ySdQPUuOvAuB4lm6PzJjkcIgYLECzNp3n8EV6e28UeuCej349XUxRx4gERUgC1zvinsCw==","signed_message":"open_graph_event_sha256_bytes","signed_at":"2026-08-06T13:24:35.228807Z"},"content_sha256":"4eb19c7c936e224f855b96b4c93ce69d94d6859585cf47f48f5dfe2246b04c38","schema_version":"1.0","event_id":"sha256:4eb19c7c936e224f855b96b4c93ce69d94d6859585cf47f48f5dfe2246b04c38"}],"timestamp_proofs":[],"mirror_hints":[{"mirror_type":"https","name":"Pith Resolver","base_url":"https://pith.science","bundle_url":"https://pith.science/pith/2GLUWGY2R6R6KH4WCB6ADFJFHV/bundle.json","state_url":"https://pith.science/pith/2GLUWGY2R6R6KH4WCB6ADFJFHV/state.json","well_known_bundle_url":"https://pith.science/.well-known/pith/2GLUWGY2R6R6KH4WCB6ADFJFHV/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":"2026-08-06T13:24:35Z","links":{"resolver":"https://pith.science/pith/2GLUWGY2R6R6KH4WCB6ADFJFHV","bundle":"https://pith.science/pith/2GLUWGY2R6R6KH4WCB6ADFJFHV/bundle.json","state":"https://pith.science/pith/2GLUWGY2R6R6KH4WCB6ADFJFHV/state.json","well_known_bundle":"https://pith.science/.well-known/pith/2GLUWGY2R6R6KH4WCB6ADFJFHV/bundle.json"},"state":{"state_type":"pith_open_graph_state","state_version":"1.0","pith_number":"pith:2021:2GLUWGY2R6R6KH4WCB6ADFJFHV","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":"a458299b35e3c3069a965554f983b0b493bac50147c2e18592cc3e91e8ca78e1","cross_cats_sorted":["cond-mat.str-el","physics.app-ph"],"license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"cond-mat.mtrl-sci","submitted_at":"2021-02-09T17:12:06Z","title_canon_sha256":"7a5d92ce550b7a86652a2902b72aeb0c67312d36cd2143ba1c4f26d1c3bf468c"},"schema_version":"1.0","source":{"id":"2102.04956","kind":"arxiv","version":1}},"source_aliases":[{"alias_kind":"arxiv","alias_value":"2102.04956","created_at":"2026-07-05T02:36:03Z"},{"alias_kind":"arxiv_version","alias_value":"2102.04956v1","created_at":"2026-07-05T02:36:03Z"},{"alias_kind":"doi","alias_value":"10.48550/arxiv.2102.04956","created_at":"2026-07-05T02:36:03Z"},{"alias_kind":"pith_short_12","alias_value":"2GLUWGY2R6R6","created_at":"2026-07-05T02:36:03Z"},{"alias_kind":"pith_short_16","alias_value":"2GLUWGY2R6R6KH4W","created_at":"2026-07-05T02:36:03Z"},{"alias_kind":"pith_short_8","alias_value":"2GLUWGY2","created_at":"2026-07-05T02:36:03Z"}],"graph_snapshots":[{"event_id":"sha256:4eb19c7c936e224f855b96b4c93ce69d94d6859585cf47f48f5dfe2246b04c38","target":"graph","created_at":"2026-07-05T02:36:03Z","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/2102.04956/integrity.json","findings":[],"snapshot_sha256":"c28c3603d3b5d939e8dc4c7e95fa8dfce3d595e45f758748cecf8e644a296938","summary":{"advisory":0,"by_detector":{},"critical":0,"informational":0}},"paper":{"abstract_excerpt":"Quantum confinement leads to the emergence of several magnon modes in ultrathin layered magnetic structures. We probe the lifetime of these quantum confined modes in a model system composed of three atomic layers of Co grown on different surfaces. We demonstrate that the quantum confined magnons exhibit nonlinear decay rates, which strongly depend on the mode number, in sharp contrast to what is assumed in the classical dynamics. Combining the experimental results with those of linear-response density functional calculations we provide a quantitative explanation for this nonlinear damping effe","authors_text":"A. Ernst, A. Hjelt, I. V. Maznichenko, Kh. Zakeri, P. Buczek","cross_cats":["cond-mat.str-el","physics.app-ph"],"headline":"","license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"cond-mat.mtrl-sci","submitted_at":"2021-02-09T17:12:06Z","title":"Nonlinear Decay of Quantum Confined Magnons in Itinerant Ferromagnets"},"references":{"count":0,"internal_anchors":0,"resolved_work":0,"sample":[],"snapshot_sha256":"258153158e38e3291e3d48162225fcdb2d5a3ed65a07baac614ab91432fd4f57"},"source":{"id":"2102.04956","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":"sha256:48a6bc9ea8b15f3e29ba8a414f0e74d890b6e28d5e6978b0832bbcf120a6172e","target":"record","created_at":"2026-07-05T02:36:03Z","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":"a458299b35e3c3069a965554f983b0b493bac50147c2e18592cc3e91e8ca78e1","cross_cats_sorted":["cond-mat.str-el","physics.app-ph"],"license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"cond-mat.mtrl-sci","submitted_at":"2021-02-09T17:12:06Z","title_canon_sha256":"7a5d92ce550b7a86652a2902b72aeb0c67312d36cd2143ba1c4f26d1c3bf468c"},"schema_version":"1.0","source":{"id":"2102.04956","kind":"arxiv","version":1}},"canonical_sha256":"d1974b1b1a8fa3e51f96107c0195253d7eb3c6f1621c2c8e9c97d7364d0f4036","receipt":{"algorithm":"ed25519","builder_version":"pith-number-builder-2026-05-17-v1","canonical_sha256":"d1974b1b1a8fa3e51f96107c0195253d7eb3c6f1621c2c8e9c97d7364d0f4036","first_computed_at":"2026-07-05T02:36:03.981414Z","key_id":"pith-v1-2026-05","kind":"pith_receipt","last_reissued_at":"2026-07-05T02:36:03.981414Z","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54","receipt_version":"0.3","signature_b64":"JC4SznWmGEC6XW+HmOpDLBnagx8bFB5L08emyQ5BVg0OiMCkJIQF7w90++aeGQ/E9eFgK1AOVmL3ccGnzGnbCA==","signature_status":"signed_v1","signed_at":"2026-07-05T02:36:03.981784Z","signed_message":"canonical_sha256_bytes"},"source_id":"2102.04956","source_kind":"arxiv","source_version":1}}},"equivocations":[],"invalid_events":[],"applied_event_ids":["sha256:48a6bc9ea8b15f3e29ba8a414f0e74d890b6e28d5e6978b0832bbcf120a6172e","sha256:4eb19c7c936e224f855b96b4c93ce69d94d6859585cf47f48f5dfe2246b04c38"],"state_sha256":"c46ef9838c8508aaffca7f31e32f72a50ef703335ffc6fb712934d669db5ee36"},"bundle_signature":{"signature_status":"signed_v1","algorithm":"ed25519","key_id":"pith-v1-2026-05","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54","signature_b64":"omwTOpZsS3exzJzss82Ov5dVmVkU9Fhyi7XRYMLzj9bHwvhQqrH8xv9NNbdvVC9wipajZvgVEGlVfLGwPsbYCQ==","signed_message":"bundle_sha256_bytes","signed_at":"2026-08-06T13:24:35.232053Z","bundle_sha256":"9edeb18ceda2e0d0cbce637716a45b27737d375812ad8c86daef0808d9e81280"}}