{"bundle_type":"pith_open_graph_bundle","bundle_version":"1.0","pith_number":"pith:2019:EIZK6I7K2X7EUS53XEWQDWMLER","short_pith_number":"pith:EIZK6I7K","canonical_record":{"source":{"id":"1908.07730","kind":"arxiv","version":1},"metadata":{"license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"cond-mat.mtrl-sci","submitted_at":"2019-08-21T07:29:28Z","cross_cats_sorted":[],"title_canon_sha256":"8893c65a64edc864c4fdea1b2088de9637f105e021c66c384e388f725d316e06","abstract_canon_sha256":"c7a9657a5d5633121a0d41844b8d6ea4f146e4151e16b17a34efd855ecfb5bd7"},"schema_version":"1.0"},"canonical_sha256":"2232af23ead5fe4a4bbbb92d01d98b24585ecb5fd2e7159c25e5011ce54f98a1","source":{"kind":"arxiv","id":"1908.07730","version":1},"source_aliases":[{"alias_kind":"arxiv","alias_value":"1908.07730","created_at":"2026-07-04T23:59:00Z"},{"alias_kind":"arxiv_version","alias_value":"1908.07730v1","created_at":"2026-07-04T23:59:00Z"},{"alias_kind":"doi","alias_value":"10.48550/arxiv.1908.07730","created_at":"2026-07-04T23:59:00Z"},{"alias_kind":"pith_short_12","alias_value":"EIZK6I7K2X7E","created_at":"2026-07-04T23:59:00Z"},{"alias_kind":"pith_short_16","alias_value":"EIZK6I7K2X7EUS53","created_at":"2026-07-04T23:59:00Z"},{"alias_kind":"pith_short_8","alias_value":"EIZK6I7K","created_at":"2026-07-04T23:59:00Z"}],"events":[{"event_type":"record_created","subject_pith_number":"pith:2019:EIZK6I7K2X7EUS53XEWQDWMLER","target":"record","payload":{"canonical_record":{"source":{"id":"1908.07730","kind":"arxiv","version":1},"metadata":{"license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"cond-mat.mtrl-sci","submitted_at":"2019-08-21T07:29:28Z","cross_cats_sorted":[],"title_canon_sha256":"8893c65a64edc864c4fdea1b2088de9637f105e021c66c384e388f725d316e06","abstract_canon_sha256":"c7a9657a5d5633121a0d41844b8d6ea4f146e4151e16b17a34efd855ecfb5bd7"},"schema_version":"1.0"},"canonical_sha256":"2232af23ead5fe4a4bbbb92d01d98b24585ecb5fd2e7159c25e5011ce54f98a1","receipt":{"kind":"pith_receipt","key_id":"pith-v1-2026-05","algorithm":"ed25519","signed_at":"2026-07-04T23:59:00.732768Z","signature_b64":"QOF4Lq5TsOKCK18ISZFzmgCsZ/reZdgG3EnAvzMc1KxRmMFZZIVAMhA46FLWfAfYzur3PBMmSV+3ev7I7ceqDg==","signed_message":"canonical_sha256_bytes","builder_version":"pith-number-builder-2026-05-17-v1","receipt_version":"0.3","canonical_sha256":"2232af23ead5fe4a4bbbb92d01d98b24585ecb5fd2e7159c25e5011ce54f98a1","last_reissued_at":"2026-07-04T23:59:00.732399Z","signature_status":"signed_v1","first_computed_at":"2026-07-04T23:59:00.732399Z","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54"},"source_kind":"arxiv","source_id":"1908.07730","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":"2026-07-04T23:59:00Z","supersedes":[],"prev_event":null,"signature":{"signature_status":"signed_v1","algorithm":"ed25519","key_id":"pith-v1-2026-05","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54","signature_b64":"kzHhyErloZZBngGHsiltQaMt/oV7MyU3fTsLcyrsZYyG2P2rrh22MT7vNkhTP3x7w3MN7i+8UnGWQbdKtImyAg==","signed_message":"open_graph_event_sha256_bytes","signed_at":"2026-08-16T14:24:40.861224Z"},"content_sha256":"4ae21610b05a8c03479570de3c61956206866b518910ff1796e2800f949e4a8c","schema_version":"1.0","event_id":"sha256:4ae21610b05a8c03479570de3c61956206866b518910ff1796e2800f949e4a8c"},{"event_type":"graph_snapshot","subject_pith_number":"pith:2019:EIZK6I7K2X7EUS53XEWQDWMLER","target":"graph","payload":{"graph_snapshot":{"paper":{"title":"Pure spin current in a robust pigment-red film","license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","headline":"","cross_cats":[],"primary_cat":"cond-mat.mtrl-sci","authors_text":"Eiji Shikoh, Kazuhiro Nishida, Yoshio Teki","submitted_at":"2019-08-21T07:29:28Z","abstract_excerpt":"We report the spin current properties in a pigment-red (perylene-3,4,9,10-tetracarboxylic dianhydride: PTCDA) film prepared by thermal evaporation. In a palladium(Pd)/PTCDA/Ni80Fe20 tri-layer sample, a pure spin-current is generated in the PTCDA layer by the spin-pumping of the Ni80Fe20. The spin current is absorbed into the Pd layer, converted into a charge current with the inverse spin-Hall effect in Pd, and detected as an electromotive force. This is clear evidence for the pure spin current in a PTCDA film, and it is confirmed that a PTCDA film is useful not only as a robust protection laye"},"claims":{"count":0,"items":[],"snapshot_sha256":"258153158e38e3291e3d48162225fcdb2d5a3ed65a07baac614ab91432fd4f57"},"source":{"id":"1908.07730","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/1908.07730/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":"2026-07-04T23:59:00Z","supersedes":[],"prev_event":null,"signature":{"signature_status":"signed_v1","algorithm":"ed25519","key_id":"pith-v1-2026-05","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54","signature_b64":"ecqhjsNFHnojYRIbub36sLJIX4qnM/2gNXH/M9vz+cyTAtULKFP2nVdHl5otHLpi0nCNtTlee54Jy4jA+0BtDg==","signed_message":"open_graph_event_sha256_bytes","signed_at":"2026-08-16T14:24:40.861739Z"},"content_sha256":"2a031be11f68c6922c646875002e8d464b3f052ad0fefe0ee9f021ab24b4c93d","schema_version":"1.0","event_id":"sha256:2a031be11f68c6922c646875002e8d464b3f052ad0fefe0ee9f021ab24b4c93d"}],"timestamp_proofs":[],"mirror_hints":[{"mirror_type":"https","name":"Pith Resolver","base_url":"https://pith.science","bundle_url":"https://pith.science/pith/EIZK6I7K2X7EUS53XEWQDWMLER/bundle.json","state_url":"https://pith.science/pith/EIZK6I7K2X7EUS53XEWQDWMLER/state.json","well_known_bundle_url":"https://pith.science/.well-known/pith/EIZK6I7K2X7EUS53XEWQDWMLER/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":"2026-08-16T14:24:40Z","links":{"resolver":"https://pith.science/pith/EIZK6I7K2X7EUS53XEWQDWMLER","bundle":"https://pith.science/pith/EIZK6I7K2X7EUS53XEWQDWMLER/bundle.json","state":"https://pith.science/pith/EIZK6I7K2X7EUS53XEWQDWMLER/state.json","well_known_bundle":"https://pith.science/.well-known/pith/EIZK6I7K2X7EUS53XEWQDWMLER/bundle.json"},"state":{"state_type":"pith_open_graph_state","state_version":"1.0","pith_number":"pith:2019:EIZK6I7K2X7EUS53XEWQDWMLER","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":"c7a9657a5d5633121a0d41844b8d6ea4f146e4151e16b17a34efd855ecfb5bd7","cross_cats_sorted":[],"license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"cond-mat.mtrl-sci","submitted_at":"2019-08-21T07:29:28Z","title_canon_sha256":"8893c65a64edc864c4fdea1b2088de9637f105e021c66c384e388f725d316e06"},"schema_version":"1.0","source":{"id":"1908.07730","kind":"arxiv","version":1}},"source_aliases":[{"alias_kind":"arxiv","alias_value":"1908.07730","created_at":"2026-07-04T23:59:00Z"},{"alias_kind":"arxiv_version","alias_value":"1908.07730v1","created_at":"2026-07-04T23:59:00Z"},{"alias_kind":"doi","alias_value":"10.48550/arxiv.1908.07730","created_at":"2026-07-04T23:59:00Z"},{"alias_kind":"pith_short_12","alias_value":"EIZK6I7K2X7E","created_at":"2026-07-04T23:59:00Z"},{"alias_kind":"pith_short_16","alias_value":"EIZK6I7K2X7EUS53","created_at":"2026-07-04T23:59:00Z"},{"alias_kind":"pith_short_8","alias_value":"EIZK6I7K","created_at":"2026-07-04T23:59:00Z"}],"graph_snapshots":[{"event_id":"sha256:2a031be11f68c6922c646875002e8d464b3f052ad0fefe0ee9f021ab24b4c93d","target":"graph","created_at":"2026-07-04T23:59:00Z","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/1908.07730/integrity.json","findings":[],"snapshot_sha256":"c28c3603d3b5d939e8dc4c7e95fa8dfce3d595e45f758748cecf8e644a296938","summary":{"advisory":0,"by_detector":{},"critical":0,"informational":0}},"paper":{"abstract_excerpt":"We report the spin current properties in a pigment-red (perylene-3,4,9,10-tetracarboxylic dianhydride: PTCDA) film prepared by thermal evaporation. In a palladium(Pd)/PTCDA/Ni80Fe20 tri-layer sample, a pure spin-current is generated in the PTCDA layer by the spin-pumping of the Ni80Fe20. The spin current is absorbed into the Pd layer, converted into a charge current with the inverse spin-Hall effect in Pd, and detected as an electromotive force. This is clear evidence for the pure spin current in a PTCDA film, and it is confirmed that a PTCDA film is useful not only as a robust protection laye","authors_text":"Eiji Shikoh, Kazuhiro Nishida, Yoshio Teki","cross_cats":[],"headline":"","license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"cond-mat.mtrl-sci","submitted_at":"2019-08-21T07:29:28Z","title":"Pure spin current in a robust pigment-red film"},"references":{"count":0,"internal_anchors":0,"resolved_work":0,"sample":[],"snapshot_sha256":"258153158e38e3291e3d48162225fcdb2d5a3ed65a07baac614ab91432fd4f57"},"source":{"id":"1908.07730","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":"sha256:4ae21610b05a8c03479570de3c61956206866b518910ff1796e2800f949e4a8c","target":"record","created_at":"2026-07-04T23:59:00Z","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":"c7a9657a5d5633121a0d41844b8d6ea4f146e4151e16b17a34efd855ecfb5bd7","cross_cats_sorted":[],"license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"cond-mat.mtrl-sci","submitted_at":"2019-08-21T07:29:28Z","title_canon_sha256":"8893c65a64edc864c4fdea1b2088de9637f105e021c66c384e388f725d316e06"},"schema_version":"1.0","source":{"id":"1908.07730","kind":"arxiv","version":1}},"canonical_sha256":"2232af23ead5fe4a4bbbb92d01d98b24585ecb5fd2e7159c25e5011ce54f98a1","receipt":{"algorithm":"ed25519","builder_version":"pith-number-builder-2026-05-17-v1","canonical_sha256":"2232af23ead5fe4a4bbbb92d01d98b24585ecb5fd2e7159c25e5011ce54f98a1","first_computed_at":"2026-07-04T23:59:00.732399Z","key_id":"pith-v1-2026-05","kind":"pith_receipt","last_reissued_at":"2026-07-04T23:59:00.732399Z","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54","receipt_version":"0.3","signature_b64":"QOF4Lq5TsOKCK18ISZFzmgCsZ/reZdgG3EnAvzMc1KxRmMFZZIVAMhA46FLWfAfYzur3PBMmSV+3ev7I7ceqDg==","signature_status":"signed_v1","signed_at":"2026-07-04T23:59:00.732768Z","signed_message":"canonical_sha256_bytes"},"source_id":"1908.07730","source_kind":"arxiv","source_version":1}}},"equivocations":[],"invalid_events":[],"applied_event_ids":["sha256:4ae21610b05a8c03479570de3c61956206866b518910ff1796e2800f949e4a8c","sha256:2a031be11f68c6922c646875002e8d464b3f052ad0fefe0ee9f021ab24b4c93d"],"state_sha256":"cbca4860ee6a8932dc58c2dd652d393a539adf35743560bd92a9fd9048a36daf"},"bundle_signature":{"signature_status":"signed_v1","algorithm":"ed25519","key_id":"pith-v1-2026-05","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54","signature_b64":"uAIbCKS4FlVbLKPE35aCp/i73fXeuQfMG02/HuVkNyqStMKyTYRSgTMXOLre8amhv2SP8aE0+BXRiP5dE3vfCg==","signed_message":"bundle_sha256_bytes","signed_at":"2026-08-16T14:24:40.866325Z","bundle_sha256":"1b7ef6ea312ff73e038d644fcafc385d5111b71f378ead8af025dd96bb6a4492"}}