{"bundle_type":"pith_open_graph_bundle","bundle_version":"1.0","pith_number":"pith:2018:6GNX4IT2NB6EEQM6UW5WRZTA7T","short_pith_number":"pith:6GNX4IT2","canonical_record":{"source":{"id":"1807.10946","kind":"arxiv","version":1},"metadata":{"license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"cond-mat.str-el","submitted_at":"2018-07-28T15:01:20Z","cross_cats_sorted":["cond-mat.mes-hall"],"title_canon_sha256":"bae6c00407fa4e7e30a5eaa29ad45b512a75d774dbde124a85c045644aa6f288","abstract_canon_sha256":"e1d037ac061ae9e871c1403a25d46477ebaf01094cb1ded42e3230fe7bf9ba4f"},"schema_version":"1.0"},"canonical_sha256":"f19b7e227a687c42419ea5bb68e660fce793c6ffdfa18063e70898d21029fc87","source":{"kind":"arxiv","id":"1807.10946","version":1},"source_aliases":[{"alias_kind":"arxiv","alias_value":"1807.10946","created_at":"2026-05-18T00:04:44Z"},{"alias_kind":"arxiv_version","alias_value":"1807.10946v1","created_at":"2026-05-18T00:04:44Z"},{"alias_kind":"doi","alias_value":"10.48550/arxiv.1807.10946","created_at":"2026-05-18T00:04:44Z"},{"alias_kind":"pith_short_12","alias_value":"6GNX4IT2NB6E","created_at":"2026-05-18T12:32:08Z"},{"alias_kind":"pith_short_16","alias_value":"6GNX4IT2NB6EEQM6","created_at":"2026-05-18T12:32:08Z"},{"alias_kind":"pith_short_8","alias_value":"6GNX4IT2","created_at":"2026-05-18T12:32:08Z"}],"events":[{"event_type":"record_created","subject_pith_number":"pith:2018:6GNX4IT2NB6EEQM6UW5WRZTA7T","target":"record","payload":{"canonical_record":{"source":{"id":"1807.10946","kind":"arxiv","version":1},"metadata":{"license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"cond-mat.str-el","submitted_at":"2018-07-28T15:01:20Z","cross_cats_sorted":["cond-mat.mes-hall"],"title_canon_sha256":"bae6c00407fa4e7e30a5eaa29ad45b512a75d774dbde124a85c045644aa6f288","abstract_canon_sha256":"e1d037ac061ae9e871c1403a25d46477ebaf01094cb1ded42e3230fe7bf9ba4f"},"schema_version":"1.0"},"canonical_sha256":"f19b7e227a687c42419ea5bb68e660fce793c6ffdfa18063e70898d21029fc87","receipt":{"kind":"pith_receipt","key_id":"pith-v1-2026-05","algorithm":"ed25519","signed_at":"2026-05-18T00:04:44.538966Z","signature_b64":"YohaIhj/AAgwFVdA2YsW9aIpe295HivkUrgLKgojJZjL9s4PjqnwtWq28r4yM5iwSI35y2Rs7KgvSPNmSnJOCA==","signed_message":"canonical_sha256_bytes","builder_version":"pith-number-builder-2026-05-17-v1","receipt_version":"0.3","canonical_sha256":"f19b7e227a687c42419ea5bb68e660fce793c6ffdfa18063e70898d21029fc87","last_reissued_at":"2026-05-18T00:04:44.538309Z","signature_status":"signed_v1","first_computed_at":"2026-05-18T00:04:44.538309Z","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54"},"source_kind":"arxiv","source_id":"1807.10946","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":"2026-05-18T00:04:44Z","supersedes":[],"prev_event":null,"signature":{"signature_status":"signed_v1","algorithm":"ed25519","key_id":"pith-v1-2026-05","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54","signature_b64":"aSV3z8m35tByuAoGXf566SNVoe7uKP28SeYSuetPa71yKFaQPhjI3G60PaFNk7z41W5Cvehu1aYbx7v21/bqAg==","signed_message":"open_graph_event_sha256_bytes","signed_at":"2026-05-31T21:11:10.302450Z"},"content_sha256":"a1a9bff9e6e6b2443516a7d349307541be20143b4372ba55bcc2c619b24f2adb","schema_version":"1.0","event_id":"sha256:a1a9bff9e6e6b2443516a7d349307541be20143b4372ba55bcc2c619b24f2adb"},{"event_type":"graph_snapshot","subject_pith_number":"pith:2018:6GNX4IT2NB6EEQM6UW5WRZTA7T","target":"graph","payload":{"graph_snapshot":{"paper":{"title":"Ultrafast spin current generation in ferromagnetic thin films","license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","headline":"","cross_cats":["cond-mat.mes-hall"],"primary_cat":"cond-mat.str-el","authors_text":"Giovanni Manfredi, J\\'er\\^ome Hurst, Paul-Antoine Hervieux","submitted_at":"2018-07-28T15:01:20Z","abstract_excerpt":"Spin currents have been shown to play a key role in the ultrafast laser-driven demagnetization process in ferromagnetic thin films. Here, we show that an oscillating spin current can be generated in the film via the application of a femtosecond laser pulse in the visible range. In particular, we prove that the spin current is due to ballistic electrons traveling back and forth in the film. The dependence of the current intensity on the driving electric field is also investigated."},"claims":{"count":0,"items":[],"snapshot_sha256":"258153158e38e3291e3d48162225fcdb2d5a3ed65a07baac614ab91432fd4f57"},"source":{"id":"1807.10946","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":"2026-05-18T00:04:44Z","supersedes":[],"prev_event":null,"signature":{"signature_status":"signed_v1","algorithm":"ed25519","key_id":"pith-v1-2026-05","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54","signature_b64":"HcaMFfTNQt4ppCKBt+0lCA5RxHDb+JZijtk4akuV3PXdha3O0/gWnQjIhmvBTuyOCbZ7gbtnvoCayrbnQHGtCA==","signed_message":"open_graph_event_sha256_bytes","signed_at":"2026-05-31T21:11:10.302800Z"},"content_sha256":"99b596a06a54d137a80a71092b696f1f678a1190dde60c59f939abb399cfe775","schema_version":"1.0","event_id":"sha256:99b596a06a54d137a80a71092b696f1f678a1190dde60c59f939abb399cfe775"}],"timestamp_proofs":[],"mirror_hints":[{"mirror_type":"https","name":"Pith Resolver","base_url":"https://pith.science","bundle_url":"https://pith.science/pith/6GNX4IT2NB6EEQM6UW5WRZTA7T/bundle.json","state_url":"https://pith.science/pith/6GNX4IT2NB6EEQM6UW5WRZTA7T/state.json","well_known_bundle_url":"https://pith.science/.well-known/pith/6GNX4IT2NB6EEQM6UW5WRZTA7T/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":"2026-05-31T21:11:10Z","links":{"resolver":"https://pith.science/pith/6GNX4IT2NB6EEQM6UW5WRZTA7T","bundle":"https://pith.science/pith/6GNX4IT2NB6EEQM6UW5WRZTA7T/bundle.json","state":"https://pith.science/pith/6GNX4IT2NB6EEQM6UW5WRZTA7T/state.json","well_known_bundle":"https://pith.science/.well-known/pith/6GNX4IT2NB6EEQM6UW5WRZTA7T/bundle.json"},"state":{"state_type":"pith_open_graph_state","state_version":"1.0","pith_number":"pith:2018:6GNX4IT2NB6EEQM6UW5WRZTA7T","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":"e1d037ac061ae9e871c1403a25d46477ebaf01094cb1ded42e3230fe7bf9ba4f","cross_cats_sorted":["cond-mat.mes-hall"],"license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"cond-mat.str-el","submitted_at":"2018-07-28T15:01:20Z","title_canon_sha256":"bae6c00407fa4e7e30a5eaa29ad45b512a75d774dbde124a85c045644aa6f288"},"schema_version":"1.0","source":{"id":"1807.10946","kind":"arxiv","version":1}},"source_aliases":[{"alias_kind":"arxiv","alias_value":"1807.10946","created_at":"2026-05-18T00:04:44Z"},{"alias_kind":"arxiv_version","alias_value":"1807.10946v1","created_at":"2026-05-18T00:04:44Z"},{"alias_kind":"doi","alias_value":"10.48550/arxiv.1807.10946","created_at":"2026-05-18T00:04:44Z"},{"alias_kind":"pith_short_12","alias_value":"6GNX4IT2NB6E","created_at":"2026-05-18T12:32:08Z"},{"alias_kind":"pith_short_16","alias_value":"6GNX4IT2NB6EEQM6","created_at":"2026-05-18T12:32:08Z"},{"alias_kind":"pith_short_8","alias_value":"6GNX4IT2","created_at":"2026-05-18T12:32:08Z"}],"graph_snapshots":[{"event_id":"sha256:99b596a06a54d137a80a71092b696f1f678a1190dde60c59f939abb399cfe775","target":"graph","created_at":"2026-05-18T00:04:44Z","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":"Spin currents have been shown to play a key role in the ultrafast laser-driven demagnetization process in ferromagnetic thin films. Here, we show that an oscillating spin current can be generated in the film via the application of a femtosecond laser pulse in the visible range. In particular, we prove that the spin current is due to ballistic electrons traveling back and forth in the film. The dependence of the current intensity on the driving electric field is also investigated.","authors_text":"Giovanni Manfredi, J\\'er\\^ome Hurst, Paul-Antoine Hervieux","cross_cats":["cond-mat.mes-hall"],"headline":"","license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"cond-mat.str-el","submitted_at":"2018-07-28T15:01:20Z","title":"Ultrafast spin current generation in ferromagnetic thin films"},"references":{"count":0,"internal_anchors":0,"resolved_work":0,"sample":[],"snapshot_sha256":"258153158e38e3291e3d48162225fcdb2d5a3ed65a07baac614ab91432fd4f57"},"source":{"id":"1807.10946","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:a1a9bff9e6e6b2443516a7d349307541be20143b4372ba55bcc2c619b24f2adb","target":"record","created_at":"2026-05-18T00:04:44Z","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":"e1d037ac061ae9e871c1403a25d46477ebaf01094cb1ded42e3230fe7bf9ba4f","cross_cats_sorted":["cond-mat.mes-hall"],"license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"cond-mat.str-el","submitted_at":"2018-07-28T15:01:20Z","title_canon_sha256":"bae6c00407fa4e7e30a5eaa29ad45b512a75d774dbde124a85c045644aa6f288"},"schema_version":"1.0","source":{"id":"1807.10946","kind":"arxiv","version":1}},"canonical_sha256":"f19b7e227a687c42419ea5bb68e660fce793c6ffdfa18063e70898d21029fc87","receipt":{"algorithm":"ed25519","builder_version":"pith-number-builder-2026-05-17-v1","canonical_sha256":"f19b7e227a687c42419ea5bb68e660fce793c6ffdfa18063e70898d21029fc87","first_computed_at":"2026-05-18T00:04:44.538309Z","key_id":"pith-v1-2026-05","kind":"pith_receipt","last_reissued_at":"2026-05-18T00:04:44.538309Z","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54","receipt_version":"0.3","signature_b64":"YohaIhj/AAgwFVdA2YsW9aIpe295HivkUrgLKgojJZjL9s4PjqnwtWq28r4yM5iwSI35y2Rs7KgvSPNmSnJOCA==","signature_status":"signed_v1","signed_at":"2026-05-18T00:04:44.538966Z","signed_message":"canonical_sha256_bytes"},"source_id":"1807.10946","source_kind":"arxiv","source_version":1}}},"equivocations":[],"invalid_events":[],"applied_event_ids":["sha256:a1a9bff9e6e6b2443516a7d349307541be20143b4372ba55bcc2c619b24f2adb","sha256:99b596a06a54d137a80a71092b696f1f678a1190dde60c59f939abb399cfe775"],"state_sha256":"e651549dcca24147c6fb63b0b9610b4631b324dd9068cb737b393b3adb27f982"},"bundle_signature":{"signature_status":"signed_v1","algorithm":"ed25519","key_id":"pith-v1-2026-05","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54","signature_b64":"++CLohNuXcXoj0fgCpmoHDmNu6s2FyJmgogQWRmw+MY+gzgzfGMFKE94f4PR2MxIh4QSc+PBKzI+NETcvp5oDQ==","signed_message":"bundle_sha256_bytes","signed_at":"2026-05-31T21:11:10.304774Z","bundle_sha256":"46af60319cad89c5a0ddea088a648047e43d6df0c89b764f1a0ba9f20e262713"}}