{"bundle_type":"pith_open_graph_bundle","bundle_version":"1.0","pith_number":"pith:2018:VKXMH2HIZIDNS4T6FX3375U5MZ","short_pith_number":"pith:VKXMH2HI","canonical_record":{"source":{"id":"1809.09376","kind":"arxiv","version":1},"metadata":{"license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"cond-mat.mes-hall","submitted_at":"2018-09-25T09:29:11Z","cross_cats_sorted":[],"title_canon_sha256":"fc87bda9952cb6b14ffa79c5a3f5251443b41e23b20f53e3e1eb5581f17d1109","abstract_canon_sha256":"87a8214c1f6b2d7d742fa8941b3b41b2187889138e3638a1693d0ad073e604a7"},"schema_version":"1.0"},"canonical_sha256":"aaaec3e8e8ca06d9727e2df7bff69d667229797a3dd0e8050d6158f48d49c9ab","source":{"kind":"arxiv","id":"1809.09376","version":1},"source_aliases":[{"alias_kind":"arxiv","alias_value":"1809.09376","created_at":"2026-05-18T00:04:53Z"},{"alias_kind":"arxiv_version","alias_value":"1809.09376v1","created_at":"2026-05-18T00:04:53Z"},{"alias_kind":"doi","alias_value":"10.48550/arxiv.1809.09376","created_at":"2026-05-18T00:04:53Z"},{"alias_kind":"pith_short_12","alias_value":"VKXMH2HIZIDN","created_at":"2026-05-18T12:32:59Z"},{"alias_kind":"pith_short_16","alias_value":"VKXMH2HIZIDNS4T6","created_at":"2026-05-18T12:32:59Z"},{"alias_kind":"pith_short_8","alias_value":"VKXMH2HI","created_at":"2026-05-18T12:32:59Z"}],"events":[{"event_type":"record_created","subject_pith_number":"pith:2018:VKXMH2HIZIDNS4T6FX3375U5MZ","target":"record","payload":{"canonical_record":{"source":{"id":"1809.09376","kind":"arxiv","version":1},"metadata":{"license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"cond-mat.mes-hall","submitted_at":"2018-09-25T09:29:11Z","cross_cats_sorted":[],"title_canon_sha256":"fc87bda9952cb6b14ffa79c5a3f5251443b41e23b20f53e3e1eb5581f17d1109","abstract_canon_sha256":"87a8214c1f6b2d7d742fa8941b3b41b2187889138e3638a1693d0ad073e604a7"},"schema_version":"1.0"},"canonical_sha256":"aaaec3e8e8ca06d9727e2df7bff69d667229797a3dd0e8050d6158f48d49c9ab","receipt":{"kind":"pith_receipt","key_id":"pith-v1-2026-05","algorithm":"ed25519","signed_at":"2026-05-18T00:04:53.550161Z","signature_b64":"Q1n8UEohl7I6wGHW7Wxs+08wKm5vsw3fB80ZZcsIsoJPaTfT3fCVwxvSD1hs1t9aydOR065R3zd30TZ+AyhIDw==","signed_message":"canonical_sha256_bytes","builder_version":"pith-number-builder-2026-05-17-v1","receipt_version":"0.3","canonical_sha256":"aaaec3e8e8ca06d9727e2df7bff69d667229797a3dd0e8050d6158f48d49c9ab","last_reissued_at":"2026-05-18T00:04:53.549391Z","signature_status":"signed_v1","first_computed_at":"2026-05-18T00:04:53.549391Z","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54"},"source_kind":"arxiv","source_id":"1809.09376","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":"2026-05-18T00:04:53Z","supersedes":[],"prev_event":null,"signature":{"signature_status":"signed_v1","algorithm":"ed25519","key_id":"pith-v1-2026-05","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54","signature_b64":"eXUnuZiGH9vaUnvwsglabBGdnNkRqvUtmI9/PatqlVAjKBR/Ny6Uqa4OUw4TigTLcvoG7xxaleZL6ukTGdVcAg==","signed_message":"open_graph_event_sha256_bytes","signed_at":"2026-06-09T14:14:04.047280Z"},"content_sha256":"ebf9141a1b18c3a6da3511a82bf9911739285e749151c719a1f5d8e5ee85e00d","schema_version":"1.0","event_id":"sha256:ebf9141a1b18c3a6da3511a82bf9911739285e749151c719a1f5d8e5ee85e00d"},{"event_type":"graph_snapshot","subject_pith_number":"pith:2018:VKXMH2HIZIDNS4T6FX3375U5MZ","target":"graph","payload":{"graph_snapshot":{"paper":{"title":"Tunneling spectroscopy of graphene nanodevices coupled to large-gap superconductors","license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","headline":"","cross_cats":[],"primary_cat":"cond-mat.mes-hall","authors_text":"Daniel Rodan-Legrain, Joel I-Jan Wang, Kenji Watanabe, Landry Bretheau, Pablo Jarillo-Herrero, Riccardo Pisoni, Takashi Taniguchi","submitted_at":"2018-09-25T09:29:11Z","abstract_excerpt":"We performed tunneling spectroscopy measurements of graphene coupled to niobium/niobium-nitride superconducting electrodes. Due to the proximity effect, the graphene density of states depends on the phase difference between the superconductors and exhibits a hard induced gap at zero phase, consistent with a continuum of Andreev bound states. At energies larger than the superconducting gap, we observed phase-dependent energy levels displaying the Coulomb blockade effect, which are interpreted as arising from spurious quantum dots, presumably embedded in the heterostructures and coupled to the p"},"claims":{"count":0,"items":[],"snapshot_sha256":"258153158e38e3291e3d48162225fcdb2d5a3ed65a07baac614ab91432fd4f57"},"source":{"id":"1809.09376","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":"2026-05-18T00:04:53Z","supersedes":[],"prev_event":null,"signature":{"signature_status":"signed_v1","algorithm":"ed25519","key_id":"pith-v1-2026-05","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54","signature_b64":"3nfpQnnRLkjG2U14e84SHu67uaEICmjbbF8CbV7XDPJ0rtx9VUx2QMLzVhYJWUT9c2dBr0gbZaR93r9XGIRQAw==","signed_message":"open_graph_event_sha256_bytes","signed_at":"2026-06-09T14:14:04.047631Z"},"content_sha256":"aebb389b8145126f59e6b06598d95db9aea6219fe4a66984e0eccb2ab82716ee","schema_version":"1.0","event_id":"sha256:aebb389b8145126f59e6b06598d95db9aea6219fe4a66984e0eccb2ab82716ee"}],"timestamp_proofs":[],"mirror_hints":[{"mirror_type":"https","name":"Pith Resolver","base_url":"https://pith.science","bundle_url":"https://pith.science/pith/VKXMH2HIZIDNS4T6FX3375U5MZ/bundle.json","state_url":"https://pith.science/pith/VKXMH2HIZIDNS4T6FX3375U5MZ/state.json","well_known_bundle_url":"https://pith.science/.well-known/pith/VKXMH2HIZIDNS4T6FX3375U5MZ/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":"2026-06-09T14:14:04Z","links":{"resolver":"https://pith.science/pith/VKXMH2HIZIDNS4T6FX3375U5MZ","bundle":"https://pith.science/pith/VKXMH2HIZIDNS4T6FX3375U5MZ/bundle.json","state":"https://pith.science/pith/VKXMH2HIZIDNS4T6FX3375U5MZ/state.json","well_known_bundle":"https://pith.science/.well-known/pith/VKXMH2HIZIDNS4T6FX3375U5MZ/bundle.json"},"state":{"state_type":"pith_open_graph_state","state_version":"1.0","pith_number":"pith:2018:VKXMH2HIZIDNS4T6FX3375U5MZ","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":"87a8214c1f6b2d7d742fa8941b3b41b2187889138e3638a1693d0ad073e604a7","cross_cats_sorted":[],"license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"cond-mat.mes-hall","submitted_at":"2018-09-25T09:29:11Z","title_canon_sha256":"fc87bda9952cb6b14ffa79c5a3f5251443b41e23b20f53e3e1eb5581f17d1109"},"schema_version":"1.0","source":{"id":"1809.09376","kind":"arxiv","version":1}},"source_aliases":[{"alias_kind":"arxiv","alias_value":"1809.09376","created_at":"2026-05-18T00:04:53Z"},{"alias_kind":"arxiv_version","alias_value":"1809.09376v1","created_at":"2026-05-18T00:04:53Z"},{"alias_kind":"doi","alias_value":"10.48550/arxiv.1809.09376","created_at":"2026-05-18T00:04:53Z"},{"alias_kind":"pith_short_12","alias_value":"VKXMH2HIZIDN","created_at":"2026-05-18T12:32:59Z"},{"alias_kind":"pith_short_16","alias_value":"VKXMH2HIZIDNS4T6","created_at":"2026-05-18T12:32:59Z"},{"alias_kind":"pith_short_8","alias_value":"VKXMH2HI","created_at":"2026-05-18T12:32:59Z"}],"graph_snapshots":[{"event_id":"sha256:aebb389b8145126f59e6b06598d95db9aea6219fe4a66984e0eccb2ab82716ee","target":"graph","created_at":"2026-05-18T00:04:53Z","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":"We performed tunneling spectroscopy measurements of graphene coupled to niobium/niobium-nitride superconducting electrodes. Due to the proximity effect, the graphene density of states depends on the phase difference between the superconductors and exhibits a hard induced gap at zero phase, consistent with a continuum of Andreev bound states. At energies larger than the superconducting gap, we observed phase-dependent energy levels displaying the Coulomb blockade effect, which are interpreted as arising from spurious quantum dots, presumably embedded in the heterostructures and coupled to the p","authors_text":"Daniel Rodan-Legrain, Joel I-Jan Wang, Kenji Watanabe, Landry Bretheau, Pablo Jarillo-Herrero, Riccardo Pisoni, Takashi Taniguchi","cross_cats":[],"headline":"","license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"cond-mat.mes-hall","submitted_at":"2018-09-25T09:29:11Z","title":"Tunneling spectroscopy of graphene nanodevices coupled to large-gap superconductors"},"references":{"count":0,"internal_anchors":0,"resolved_work":0,"sample":[],"snapshot_sha256":"258153158e38e3291e3d48162225fcdb2d5a3ed65a07baac614ab91432fd4f57"},"source":{"id":"1809.09376","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:ebf9141a1b18c3a6da3511a82bf9911739285e749151c719a1f5d8e5ee85e00d","target":"record","created_at":"2026-05-18T00:04:53Z","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":"87a8214c1f6b2d7d742fa8941b3b41b2187889138e3638a1693d0ad073e604a7","cross_cats_sorted":[],"license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"cond-mat.mes-hall","submitted_at":"2018-09-25T09:29:11Z","title_canon_sha256":"fc87bda9952cb6b14ffa79c5a3f5251443b41e23b20f53e3e1eb5581f17d1109"},"schema_version":"1.0","source":{"id":"1809.09376","kind":"arxiv","version":1}},"canonical_sha256":"aaaec3e8e8ca06d9727e2df7bff69d667229797a3dd0e8050d6158f48d49c9ab","receipt":{"algorithm":"ed25519","builder_version":"pith-number-builder-2026-05-17-v1","canonical_sha256":"aaaec3e8e8ca06d9727e2df7bff69d667229797a3dd0e8050d6158f48d49c9ab","first_computed_at":"2026-05-18T00:04:53.549391Z","key_id":"pith-v1-2026-05","kind":"pith_receipt","last_reissued_at":"2026-05-18T00:04:53.549391Z","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54","receipt_version":"0.3","signature_b64":"Q1n8UEohl7I6wGHW7Wxs+08wKm5vsw3fB80ZZcsIsoJPaTfT3fCVwxvSD1hs1t9aydOR065R3zd30TZ+AyhIDw==","signature_status":"signed_v1","signed_at":"2026-05-18T00:04:53.550161Z","signed_message":"canonical_sha256_bytes"},"source_id":"1809.09376","source_kind":"arxiv","source_version":1}}},"equivocations":[],"invalid_events":[],"applied_event_ids":["sha256:ebf9141a1b18c3a6da3511a82bf9911739285e749151c719a1f5d8e5ee85e00d","sha256:aebb389b8145126f59e6b06598d95db9aea6219fe4a66984e0eccb2ab82716ee"],"state_sha256":"6bdeb3341c14c746a3b7244b87ef9527eb2e9356a486956a2e004e434eaf9f34"},"bundle_signature":{"signature_status":"signed_v1","algorithm":"ed25519","key_id":"pith-v1-2026-05","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54","signature_b64":"BGE7j+2foXf2gOtzhm+WcsNeXiqupL2m3oEPPxCAMO0p+ToIH31n/tT/0UFkofrjvDCwiR3Bf+gVwJ/HhGHDCg==","signed_message":"bundle_sha256_bytes","signed_at":"2026-06-09T14:14:04.049451Z","bundle_sha256":"42fff63e2c2f1106de405729c38145b67bd3c8d0b201fe0c9af48c24d9449c43"}}