{"bundle_type":"pith_open_graph_bundle","bundle_version":"1.0","pith_number":"pith:2026:4SQKKSGX6AWQZGCW2BHTKDOGSL","short_pith_number":"pith:4SQKKSGX","canonical_record":{"source":{"id":"2601.08442","kind":"arxiv","version":3},"metadata":{"license":"http://creativecommons.org/licenses/by/4.0/","primary_cat":"physics.atom-ph","submitted_at":"2026-01-13T11:12:02Z","cross_cats_sorted":[],"title_canon_sha256":"63ab64b298178c4cb32ee24e88edda62aa900e9de9d8b3a81607356165cb3bce","abstract_canon_sha256":"8bb15956ee49d326e94af6e1c2af1a15b03e2775f1c8bba8b7bda4d93e8b1d2a"},"schema_version":"1.0"},"canonical_sha256":"e4a0a548d7f02d0c9856d04f350dc692d6dda62144723d7e8394d2d2a6ee961c","source":{"kind":"arxiv","id":"2601.08442","version":3},"source_aliases":[{"alias_kind":"arxiv","alias_value":"2601.08442","created_at":"2026-08-03T01:27:48Z"},{"alias_kind":"arxiv_version","alias_value":"2601.08442v3","created_at":"2026-08-03T01:27:48Z"},{"alias_kind":"doi","alias_value":"10.48550/arxiv.2601.08442","created_at":"2026-08-03T01:27:48Z"},{"alias_kind":"pith_short_12","alias_value":"4SQKKSGX6AWQ","created_at":"2026-08-03T01:27:48Z"},{"alias_kind":"pith_short_16","alias_value":"4SQKKSGX6AWQZGCW","created_at":"2026-08-03T01:27:48Z"},{"alias_kind":"pith_short_8","alias_value":"4SQKKSGX","created_at":"2026-08-03T01:27:48Z"}],"events":[{"event_type":"record_created","subject_pith_number":"pith:2026:4SQKKSGX6AWQZGCW2BHTKDOGSL","target":"record","payload":{"canonical_record":{"source":{"id":"2601.08442","kind":"arxiv","version":3},"metadata":{"license":"http://creativecommons.org/licenses/by/4.0/","primary_cat":"physics.atom-ph","submitted_at":"2026-01-13T11:12:02Z","cross_cats_sorted":[],"title_canon_sha256":"63ab64b298178c4cb32ee24e88edda62aa900e9de9d8b3a81607356165cb3bce","abstract_canon_sha256":"8bb15956ee49d326e94af6e1c2af1a15b03e2775f1c8bba8b7bda4d93e8b1d2a"},"schema_version":"1.0"},"canonical_sha256":"e4a0a548d7f02d0c9856d04f350dc692d6dda62144723d7e8394d2d2a6ee961c","receipt":{"kind":"pith_receipt","key_id":"pith-v1-2026-05","algorithm":"ed25519","signed_at":"2026-08-03T01:27:48.100411Z","signature_b64":"z+R/y4kFg6wA59M9cYO5FUwPlyCmiwWq/4eOHJdjKYrIHWN7FQ1sI4xEjsK9eZYaSDPbTWi67LJ2Ah9nG3ZwAQ==","signed_message":"canonical_sha256_bytes","builder_version":"pith-number-builder-2026-05-17-v1","receipt_version":"0.3","canonical_sha256":"e4a0a548d7f02d0c9856d04f350dc692d6dda62144723d7e8394d2d2a6ee961c","last_reissued_at":"2026-08-03T01:27:48.098723Z","signature_status":"signed_v1","first_computed_at":"2026-08-03T01:27:48.098723Z","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54"},"source_kind":"arxiv","source_id":"2601.08442","source_version":3,"attestation_state":"computed"},"signer":{"signer_id":"pith.science","signer_type":"pith_registry","key_id":"pith-v1-2026-05","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54"},"created_at":"2026-08-03T01:27:48Z","supersedes":[],"prev_event":null,"signature":{"signature_status":"signed_v1","algorithm":"ed25519","key_id":"pith-v1-2026-05","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54","signature_b64":"36YdMygzNJJSHlvXK0+NtYmQCQ/LxHFJlClu8WGux8J0cvbMPhavKCcbVOU3H9BYDdF4X8dzGiQlNLqsb+6cCg==","signed_message":"open_graph_event_sha256_bytes","signed_at":"2026-08-20T12:20:56.457404Z"},"content_sha256":"3cef67e227ccdd1611078496959316a51143e73174453476b18d170676e3b7ba","schema_version":"1.0","event_id":"sha256:3cef67e227ccdd1611078496959316a51143e73174453476b18d170676e3b7ba"},{"event_type":"graph_snapshot","subject_pith_number":"pith:2026:4SQKKSGX6AWQZGCW2BHTKDOGSL","target":"graph","payload":{"graph_snapshot":{"paper":{"title":"Light-induced spin-polarized desorption of Rb atoms from Co surfaces","license":"http://creativecommons.org/licenses/by/4.0/","headline":"","cross_cats":[],"primary_cat":"physics.atom-ph","authors_text":"Atsushi Hatakeyama, Kanta Asakawa, Kaori Niki, Keisuke Hara, Naoki Tanabe, Oki Watanabe, Shuji Kamada","submitted_at":"2026-01-13T11:12:02Z","abstract_excerpt":"The spin polarization of Rb atoms undergoing light-induced desorption from a spin-polarized Co (110) surface was investigated. Desorption induced by pulsed UV-light irradiation was driven by a non-thermal mechanism and the spins of the desorbed Rb atoms were polarized. This implies spin transfer between the surface and the adsorbate during desorption."},"claims":{"count":0,"items":[],"snapshot_sha256":"258153158e38e3291e3d48162225fcdb2d5a3ed65a07baac614ab91432fd4f57"},"source":{"id":"2601.08442","kind":"arxiv","version":3},"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/2601.08442/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":"2026-08-03T01:27:48Z","supersedes":[],"prev_event":null,"signature":{"signature_status":"signed_v1","algorithm":"ed25519","key_id":"pith-v1-2026-05","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54","signature_b64":"cQY9k2i/94qdKac65kokNNE/ehflEZrZPhKly+oMueoVdIIHkJ4MZsroBDHHZlmDc8UYIpM3akM+FPQ98/EiBg==","signed_message":"open_graph_event_sha256_bytes","signed_at":"2026-08-20T12:20:56.457838Z"},"content_sha256":"5e5b61bd0f2a7b3636a1cceed2fcc8535dbcbaaaae8210709fcabbe9ae456c71","schema_version":"1.0","event_id":"sha256:5e5b61bd0f2a7b3636a1cceed2fcc8535dbcbaaaae8210709fcabbe9ae456c71"}],"timestamp_proofs":[],"mirror_hints":[{"mirror_type":"https","name":"Pith Resolver","base_url":"https://pith.science","bundle_url":"https://pith.science/pith/4SQKKSGX6AWQZGCW2BHTKDOGSL/bundle.json","state_url":"https://pith.science/pith/4SQKKSGX6AWQZGCW2BHTKDOGSL/state.json","well_known_bundle_url":"https://pith.science/.well-known/pith/4SQKKSGX6AWQZGCW2BHTKDOGSL/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":"2026-08-20T12:20:56Z","links":{"resolver":"https://pith.science/pith/4SQKKSGX6AWQZGCW2BHTKDOGSL","bundle":"https://pith.science/pith/4SQKKSGX6AWQZGCW2BHTKDOGSL/bundle.json","state":"https://pith.science/pith/4SQKKSGX6AWQZGCW2BHTKDOGSL/state.json","well_known_bundle":"https://pith.science/.well-known/pith/4SQKKSGX6AWQZGCW2BHTKDOGSL/bundle.json"},"state":{"state_type":"pith_open_graph_state","state_version":"1.0","pith_number":"pith:2026:4SQKKSGX6AWQZGCW2BHTKDOGSL","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":"8bb15956ee49d326e94af6e1c2af1a15b03e2775f1c8bba8b7bda4d93e8b1d2a","cross_cats_sorted":[],"license":"http://creativecommons.org/licenses/by/4.0/","primary_cat":"physics.atom-ph","submitted_at":"2026-01-13T11:12:02Z","title_canon_sha256":"63ab64b298178c4cb32ee24e88edda62aa900e9de9d8b3a81607356165cb3bce"},"schema_version":"1.0","source":{"id":"2601.08442","kind":"arxiv","version":3}},"source_aliases":[{"alias_kind":"arxiv","alias_value":"2601.08442","created_at":"2026-08-03T01:27:48Z"},{"alias_kind":"arxiv_version","alias_value":"2601.08442v3","created_at":"2026-08-03T01:27:48Z"},{"alias_kind":"doi","alias_value":"10.48550/arxiv.2601.08442","created_at":"2026-08-03T01:27:48Z"},{"alias_kind":"pith_short_12","alias_value":"4SQKKSGX6AWQ","created_at":"2026-08-03T01:27:48Z"},{"alias_kind":"pith_short_16","alias_value":"4SQKKSGX6AWQZGCW","created_at":"2026-08-03T01:27:48Z"},{"alias_kind":"pith_short_8","alias_value":"4SQKKSGX","created_at":"2026-08-03T01:27:48Z"}],"graph_snapshots":[{"event_id":"sha256:5e5b61bd0f2a7b3636a1cceed2fcc8535dbcbaaaae8210709fcabbe9ae456c71","target":"graph","created_at":"2026-08-03T01:27:48Z","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/2601.08442/integrity.json","findings":[],"snapshot_sha256":"c28c3603d3b5d939e8dc4c7e95fa8dfce3d595e45f758748cecf8e644a296938","summary":{"advisory":0,"by_detector":{},"critical":0,"informational":0}},"paper":{"abstract_excerpt":"The spin polarization of Rb atoms undergoing light-induced desorption from a spin-polarized Co (110) surface was investigated. Desorption induced by pulsed UV-light irradiation was driven by a non-thermal mechanism and the spins of the desorbed Rb atoms were polarized. This implies spin transfer between the surface and the adsorbate during desorption.","authors_text":"Atsushi Hatakeyama, Kanta Asakawa, Kaori Niki, Keisuke Hara, Naoki Tanabe, Oki Watanabe, Shuji Kamada","cross_cats":[],"headline":"","license":"http://creativecommons.org/licenses/by/4.0/","primary_cat":"physics.atom-ph","submitted_at":"2026-01-13T11:12:02Z","title":"Light-induced spin-polarized desorption of Rb atoms from Co surfaces"},"references":{"count":0,"internal_anchors":0,"resolved_work":0,"sample":[],"snapshot_sha256":"258153158e38e3291e3d48162225fcdb2d5a3ed65a07baac614ab91432fd4f57"},"source":{"id":"2601.08442","kind":"arxiv","version":3},"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":"sha256:3cef67e227ccdd1611078496959316a51143e73174453476b18d170676e3b7ba","target":"record","created_at":"2026-08-03T01:27:48Z","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":"8bb15956ee49d326e94af6e1c2af1a15b03e2775f1c8bba8b7bda4d93e8b1d2a","cross_cats_sorted":[],"license":"http://creativecommons.org/licenses/by/4.0/","primary_cat":"physics.atom-ph","submitted_at":"2026-01-13T11:12:02Z","title_canon_sha256":"63ab64b298178c4cb32ee24e88edda62aa900e9de9d8b3a81607356165cb3bce"},"schema_version":"1.0","source":{"id":"2601.08442","kind":"arxiv","version":3}},"canonical_sha256":"e4a0a548d7f02d0c9856d04f350dc692d6dda62144723d7e8394d2d2a6ee961c","receipt":{"algorithm":"ed25519","builder_version":"pith-number-builder-2026-05-17-v1","canonical_sha256":"e4a0a548d7f02d0c9856d04f350dc692d6dda62144723d7e8394d2d2a6ee961c","first_computed_at":"2026-08-03T01:27:48.098723Z","key_id":"pith-v1-2026-05","kind":"pith_receipt","last_reissued_at":"2026-08-03T01:27:48.098723Z","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54","receipt_version":"0.3","signature_b64":"z+R/y4kFg6wA59M9cYO5FUwPlyCmiwWq/4eOHJdjKYrIHWN7FQ1sI4xEjsK9eZYaSDPbTWi67LJ2Ah9nG3ZwAQ==","signature_status":"signed_v1","signed_at":"2026-08-03T01:27:48.100411Z","signed_message":"canonical_sha256_bytes"},"source_id":"2601.08442","source_kind":"arxiv","source_version":3}}},"equivocations":[],"invalid_events":[],"applied_event_ids":["sha256:3cef67e227ccdd1611078496959316a51143e73174453476b18d170676e3b7ba","sha256:5e5b61bd0f2a7b3636a1cceed2fcc8535dbcbaaaae8210709fcabbe9ae456c71"],"state_sha256":"6a93c00aae55f394c8837ecdf4001c0b17a1bb6c81a1035e45db06cd8ba0c62e"},"bundle_signature":{"signature_status":"signed_v1","algorithm":"ed25519","key_id":"pith-v1-2026-05","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54","signature_b64":"6dGem7idaH/IG4tphjH2q4fwavvXuYQCZbgyP8FuDwC4QZCOChfeBoOkApyicHElnvhaqi9zk66kRMDYoduNCg==","signed_message":"bundle_sha256_bytes","signed_at":"2026-08-20T12:20:56.461623Z","bundle_sha256":"ad7691f43c32d4524bbcb4fc40adfd12b1272f7b53b9807b397acb6bee647a60"}}