{"bundle_type":"pith_open_graph_bundle","bundle_version":"1.0","pith_number":"pith:2024:KL4475ZVPKSK5CB3VP5PMORD2C","short_pith_number":"pith:KL4475ZV","canonical_record":{"source":{"id":"2409.03088","kind":"arxiv","version":1},"metadata":{"license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"cond-mat.mes-hall","submitted_at":"2024-09-04T21:23:19Z","cross_cats_sorted":["cond-mat.mtrl-sci","physics.app-ph"],"title_canon_sha256":"f03ce5bc1ce1bd5e9def7f1167126b1733786657c288ad0a6ac014ba786ad4f9","abstract_canon_sha256":"3b665f1247b6fb10fc79b114efc9145c687054b70a7f1249a338526b2db239e3"},"schema_version":"1.0"},"canonical_sha256":"52f9cff7357aa4ae883babfaf63a23d08903f1018eef78e00888cdcb45fa5ff4","source":{"kind":"arxiv","id":"2409.03088","version":1},"source_aliases":[{"alias_kind":"arxiv","alias_value":"2409.03088","created_at":"2026-07-05T09:03:26Z"},{"alias_kind":"arxiv_version","alias_value":"2409.03088v1","created_at":"2026-07-05T09:03:26Z"},{"alias_kind":"doi","alias_value":"10.48550/arxiv.2409.03088","created_at":"2026-07-05T09:03:26Z"},{"alias_kind":"pith_short_12","alias_value":"KL4475ZVPKSK","created_at":"2026-07-05T09:03:26Z"},{"alias_kind":"pith_short_16","alias_value":"KL4475ZVPKSK5CB3","created_at":"2026-07-05T09:03:26Z"},{"alias_kind":"pith_short_8","alias_value":"KL4475ZV","created_at":"2026-07-05T09:03:26Z"}],"events":[{"event_type":"record_created","subject_pith_number":"pith:2024:KL4475ZVPKSK5CB3VP5PMORD2C","target":"record","payload":{"canonical_record":{"source":{"id":"2409.03088","kind":"arxiv","version":1},"metadata":{"license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"cond-mat.mes-hall","submitted_at":"2024-09-04T21:23:19Z","cross_cats_sorted":["cond-mat.mtrl-sci","physics.app-ph"],"title_canon_sha256":"f03ce5bc1ce1bd5e9def7f1167126b1733786657c288ad0a6ac014ba786ad4f9","abstract_canon_sha256":"3b665f1247b6fb10fc79b114efc9145c687054b70a7f1249a338526b2db239e3"},"schema_version":"1.0"},"canonical_sha256":"52f9cff7357aa4ae883babfaf63a23d08903f1018eef78e00888cdcb45fa5ff4","receipt":{"kind":"pith_receipt","key_id":"pith-v1-2026-05","algorithm":"ed25519","signed_at":"2026-07-05T09:03:26.044600Z","signature_b64":"oE0mkRVDE3x+wT+TzYRct/NLtPIRGK0l5cgg1xmyEp0OpuCjUvjMMyjT3R8y/ubpowiDLDGDKu1wFpDWpEviCw==","signed_message":"canonical_sha256_bytes","builder_version":"pith-number-builder-2026-05-17-v1","receipt_version":"0.3","canonical_sha256":"52f9cff7357aa4ae883babfaf63a23d08903f1018eef78e00888cdcb45fa5ff4","last_reissued_at":"2026-07-05T09:03:26.044192Z","signature_status":"signed_v1","first_computed_at":"2026-07-05T09:03:26.044192Z","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54"},"source_kind":"arxiv","source_id":"2409.03088","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":"2026-07-05T09:03:26Z","supersedes":[],"prev_event":null,"signature":{"signature_status":"signed_v1","algorithm":"ed25519","key_id":"pith-v1-2026-05","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54","signature_b64":"lOC5UIoxB2cEjbVa7s329ZahJPsgQkPDAtBvFbgNtjdQsvTYNzS6A0vixbNH2zikH6iSKRo3BnipFmH+k9wOCg==","signed_message":"open_graph_event_sha256_bytes","signed_at":"2026-08-18T21:34:57.661258Z"},"content_sha256":"23238320213b20d9cf31fdb5b841f830cda537b4aab107a7e80c9be7d50f0974","schema_version":"1.0","event_id":"sha256:23238320213b20d9cf31fdb5b841f830cda537b4aab107a7e80c9be7d50f0974"},{"event_type":"graph_snapshot","subject_pith_number":"pith:2024:KL4475ZVPKSK5CB3VP5PMORD2C","target":"graph","payload":{"graph_snapshot":{"paper":{"title":"Origin of the laser-induced picosecond spin current across magnetization compensation in ferrimagnetic GdCo","license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","headline":"","cross_cats":["cond-mat.mtrl-sci","physics.app-ph"],"primary_cat":"cond-mat.mes-hall","authors_text":"Chiara Ciccarelli, Dominik Hamara, Guillermo Nava Antonio, Joseph Barker, Jude Compton-Stewart, Jun-Xiao Lin, Michel Hehn, Quentin Remy, St\\'ephane Mangin, Thomas Hauet, Yann Le Guen","submitted_at":"2024-09-04T21:23:19Z","abstract_excerpt":"The optical manipulation of magnetism enabled by rare earth-transition metal ferrimagnets holds the promise of ultrafast, energy efficient spintronic technologies. This work investigates laser-induced picosecond spin currents generated by ferrimagnetic GdCo via terahertz emission spectroscopy. A suppression of the THz emission and spin current is observed at magnetization compensation when varying the temperature or alloy composition in the presence of a magnetic field. It is demonstrated that this is due to the formation of domains in the GdCo equilibrium magnetic configuration. Without an ap"},"claims":{"count":0,"items":[],"snapshot_sha256":"258153158e38e3291e3d48162225fcdb2d5a3ed65a07baac614ab91432fd4f57"},"source":{"id":"2409.03088","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/2409.03088/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":"2026-07-05T09:03:26Z","supersedes":[],"prev_event":null,"signature":{"signature_status":"signed_v1","algorithm":"ed25519","key_id":"pith-v1-2026-05","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54","signature_b64":"PCXFc1vMX+qWG/YPHHrpLqXdRn2MRtvHjvmSAC4741s7YboiWZNuM3qSAiscp8UYbeh/wBIFaM/kaXXAp4P6Bw==","signed_message":"open_graph_event_sha256_bytes","signed_at":"2026-08-18T21:34:57.661800Z"},"content_sha256":"f4036f17e77e36c0985c0a55c4088f393290f50494df292686bdbb39c72fcfdf","schema_version":"1.0","event_id":"sha256:f4036f17e77e36c0985c0a55c4088f393290f50494df292686bdbb39c72fcfdf"}],"timestamp_proofs":[],"mirror_hints":[{"mirror_type":"https","name":"Pith Resolver","base_url":"https://pith.science","bundle_url":"https://pith.science/pith/KL4475ZVPKSK5CB3VP5PMORD2C/bundle.json","state_url":"https://pith.science/pith/KL4475ZVPKSK5CB3VP5PMORD2C/state.json","well_known_bundle_url":"https://pith.science/.well-known/pith/KL4475ZVPKSK5CB3VP5PMORD2C/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":"2026-08-18T21:34:57Z","links":{"resolver":"https://pith.science/pith/KL4475ZVPKSK5CB3VP5PMORD2C","bundle":"https://pith.science/pith/KL4475ZVPKSK5CB3VP5PMORD2C/bundle.json","state":"https://pith.science/pith/KL4475ZVPKSK5CB3VP5PMORD2C/state.json","well_known_bundle":"https://pith.science/.well-known/pith/KL4475ZVPKSK5CB3VP5PMORD2C/bundle.json"},"state":{"state_type":"pith_open_graph_state","state_version":"1.0","pith_number":"pith:2024:KL4475ZVPKSK5CB3VP5PMORD2C","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":"3b665f1247b6fb10fc79b114efc9145c687054b70a7f1249a338526b2db239e3","cross_cats_sorted":["cond-mat.mtrl-sci","physics.app-ph"],"license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"cond-mat.mes-hall","submitted_at":"2024-09-04T21:23:19Z","title_canon_sha256":"f03ce5bc1ce1bd5e9def7f1167126b1733786657c288ad0a6ac014ba786ad4f9"},"schema_version":"1.0","source":{"id":"2409.03088","kind":"arxiv","version":1}},"source_aliases":[{"alias_kind":"arxiv","alias_value":"2409.03088","created_at":"2026-07-05T09:03:26Z"},{"alias_kind":"arxiv_version","alias_value":"2409.03088v1","created_at":"2026-07-05T09:03:26Z"},{"alias_kind":"doi","alias_value":"10.48550/arxiv.2409.03088","created_at":"2026-07-05T09:03:26Z"},{"alias_kind":"pith_short_12","alias_value":"KL4475ZVPKSK","created_at":"2026-07-05T09:03:26Z"},{"alias_kind":"pith_short_16","alias_value":"KL4475ZVPKSK5CB3","created_at":"2026-07-05T09:03:26Z"},{"alias_kind":"pith_short_8","alias_value":"KL4475ZV","created_at":"2026-07-05T09:03:26Z"}],"graph_snapshots":[{"event_id":"sha256:f4036f17e77e36c0985c0a55c4088f393290f50494df292686bdbb39c72fcfdf","target":"graph","created_at":"2026-07-05T09:03:26Z","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/2409.03088/integrity.json","findings":[],"snapshot_sha256":"c28c3603d3b5d939e8dc4c7e95fa8dfce3d595e45f758748cecf8e644a296938","summary":{"advisory":0,"by_detector":{},"critical":0,"informational":0}},"paper":{"abstract_excerpt":"The optical manipulation of magnetism enabled by rare earth-transition metal ferrimagnets holds the promise of ultrafast, energy efficient spintronic technologies. This work investigates laser-induced picosecond spin currents generated by ferrimagnetic GdCo via terahertz emission spectroscopy. A suppression of the THz emission and spin current is observed at magnetization compensation when varying the temperature or alloy composition in the presence of a magnetic field. It is demonstrated that this is due to the formation of domains in the GdCo equilibrium magnetic configuration. Without an ap","authors_text":"Chiara Ciccarelli, Dominik Hamara, Guillermo Nava Antonio, Joseph Barker, Jude Compton-Stewart, Jun-Xiao Lin, Michel Hehn, Quentin Remy, St\\'ephane Mangin, Thomas Hauet, Yann Le Guen","cross_cats":["cond-mat.mtrl-sci","physics.app-ph"],"headline":"","license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"cond-mat.mes-hall","submitted_at":"2024-09-04T21:23:19Z","title":"Origin of the laser-induced picosecond spin current across magnetization compensation in ferrimagnetic GdCo"},"references":{"count":0,"internal_anchors":0,"resolved_work":0,"sample":[],"snapshot_sha256":"258153158e38e3291e3d48162225fcdb2d5a3ed65a07baac614ab91432fd4f57"},"source":{"id":"2409.03088","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":"sha256:23238320213b20d9cf31fdb5b841f830cda537b4aab107a7e80c9be7d50f0974","target":"record","created_at":"2026-07-05T09:03:26Z","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":"3b665f1247b6fb10fc79b114efc9145c687054b70a7f1249a338526b2db239e3","cross_cats_sorted":["cond-mat.mtrl-sci","physics.app-ph"],"license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"cond-mat.mes-hall","submitted_at":"2024-09-04T21:23:19Z","title_canon_sha256":"f03ce5bc1ce1bd5e9def7f1167126b1733786657c288ad0a6ac014ba786ad4f9"},"schema_version":"1.0","source":{"id":"2409.03088","kind":"arxiv","version":1}},"canonical_sha256":"52f9cff7357aa4ae883babfaf63a23d08903f1018eef78e00888cdcb45fa5ff4","receipt":{"algorithm":"ed25519","builder_version":"pith-number-builder-2026-05-17-v1","canonical_sha256":"52f9cff7357aa4ae883babfaf63a23d08903f1018eef78e00888cdcb45fa5ff4","first_computed_at":"2026-07-05T09:03:26.044192Z","key_id":"pith-v1-2026-05","kind":"pith_receipt","last_reissued_at":"2026-07-05T09:03:26.044192Z","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54","receipt_version":"0.3","signature_b64":"oE0mkRVDE3x+wT+TzYRct/NLtPIRGK0l5cgg1xmyEp0OpuCjUvjMMyjT3R8y/ubpowiDLDGDKu1wFpDWpEviCw==","signature_status":"signed_v1","signed_at":"2026-07-05T09:03:26.044600Z","signed_message":"canonical_sha256_bytes"},"source_id":"2409.03088","source_kind":"arxiv","source_version":1}}},"equivocations":[],"invalid_events":[],"applied_event_ids":["sha256:23238320213b20d9cf31fdb5b841f830cda537b4aab107a7e80c9be7d50f0974","sha256:f4036f17e77e36c0985c0a55c4088f393290f50494df292686bdbb39c72fcfdf"],"state_sha256":"2af81342e349b9f68af65e71f235d3ebd92feb854b35534b8383122ef77a2e57"},"bundle_signature":{"signature_status":"signed_v1","algorithm":"ed25519","key_id":"pith-v1-2026-05","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54","signature_b64":"DaPqgNBMYVb1NbiVUAqvvsv0l3x4m/SqZtADWNPYkOayP7DZbEua8kzlxsDa6IUkhLo85YhHHKdgykREKpdqCA==","signed_message":"bundle_sha256_bytes","signed_at":"2026-08-18T21:34:57.666861Z","bundle_sha256":"bcc39dd7f1bec2e55ea4cf93934a1e07d8d5f8b358bc201593cb492e3c5ce4fc"}}