{"bundle_type":"pith_open_graph_bundle","bundle_version":"1.0","pith_number":"pith:2019:S5UVFPRC7NO5FT4JDPHFVZGMWD","short_pith_number":"pith:S5UVFPRC","canonical_record":{"source":{"id":"1903.02983","kind":"arxiv","version":1},"metadata":{"license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"physics.app-ph","submitted_at":"2019-03-07T15:21:50Z","cross_cats_sorted":["cond-mat.mes-hall"],"title_canon_sha256":"d84375d6e86cbed3502ed994216438e188e2c8a0c1d68f1b0297ed82e94cd2c4","abstract_canon_sha256":"143543650cd0183b124b1c1eb8f1f03b623f600dfd8b880eb6c2753452a2c5e2"},"schema_version":"1.0"},"canonical_sha256":"976952be22fb5dd2cf891bce5ae4ccb0d2a77c227d32a5ff94a9e2aaeb658995","source":{"kind":"arxiv","id":"1903.02983","version":1},"source_aliases":[{"alias_kind":"arxiv","alias_value":"1903.02983","created_at":"2026-05-17T23:51:50Z"},{"alias_kind":"arxiv_version","alias_value":"1903.02983v1","created_at":"2026-05-17T23:51:50Z"},{"alias_kind":"doi","alias_value":"10.48550/arxiv.1903.02983","created_at":"2026-05-17T23:51:50Z"},{"alias_kind":"pith_short_12","alias_value":"S5UVFPRC7NO5","created_at":"2026-05-18T12:33:27Z"},{"alias_kind":"pith_short_16","alias_value":"S5UVFPRC7NO5FT4J","created_at":"2026-05-18T12:33:27Z"},{"alias_kind":"pith_short_8","alias_value":"S5UVFPRC","created_at":"2026-05-18T12:33:27Z"}],"events":[{"event_type":"record_created","subject_pith_number":"pith:2019:S5UVFPRC7NO5FT4JDPHFVZGMWD","target":"record","payload":{"canonical_record":{"source":{"id":"1903.02983","kind":"arxiv","version":1},"metadata":{"license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"physics.app-ph","submitted_at":"2019-03-07T15:21:50Z","cross_cats_sorted":["cond-mat.mes-hall"],"title_canon_sha256":"d84375d6e86cbed3502ed994216438e188e2c8a0c1d68f1b0297ed82e94cd2c4","abstract_canon_sha256":"143543650cd0183b124b1c1eb8f1f03b623f600dfd8b880eb6c2753452a2c5e2"},"schema_version":"1.0"},"canonical_sha256":"976952be22fb5dd2cf891bce5ae4ccb0d2a77c227d32a5ff94a9e2aaeb658995","receipt":{"kind":"pith_receipt","key_id":"pith-v1-2026-05","algorithm":"ed25519","signed_at":"2026-05-17T23:51:50.486331Z","signature_b64":"VIg5LW6bYuurgERUyLny6kR9IoS9TbDwcYlVg4jYbPqGbjTLhlim7pi4iZ0tCjR+H2tXZ3ZvqMAH9+LgBzLRAA==","signed_message":"canonical_sha256_bytes","builder_version":"pith-number-builder-2026-05-17-v1","receipt_version":"0.3","canonical_sha256":"976952be22fb5dd2cf891bce5ae4ccb0d2a77c227d32a5ff94a9e2aaeb658995","last_reissued_at":"2026-05-17T23:51:50.485503Z","signature_status":"signed_v1","first_computed_at":"2026-05-17T23:51:50.485503Z","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54"},"source_kind":"arxiv","source_id":"1903.02983","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":"2026-05-17T23:51:50Z","supersedes":[],"prev_event":null,"signature":{"signature_status":"signed_v1","algorithm":"ed25519","key_id":"pith-v1-2026-05","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54","signature_b64":"XUF40B92wiuueKbpebWQWyoneTSnwHXK8smcR0BOiYnyUPV4OrUgynyG5bDVfenMUHR2VO4S/k+9uc4mA6l7CQ==","signed_message":"open_graph_event_sha256_bytes","signed_at":"2026-05-23T08:55:39.300264Z"},"content_sha256":"6a8feeb3240fe6d2e64aea54b9306f0c1f6d97517e5128b9444c9a18a244805a","schema_version":"1.0","event_id":"sha256:6a8feeb3240fe6d2e64aea54b9306f0c1f6d97517e5128b9444c9a18a244805a"},{"event_type":"graph_snapshot","subject_pith_number":"pith:2019:S5UVFPRC7NO5FT4JDPHFVZGMWD","target":"graph","payload":{"graph_snapshot":{"paper":{"title":"Graphene photodetector integrated on a photonic crystal defect waveguide","license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","headline":"","cross_cats":["cond-mat.mes-hall"],"primary_cat":"physics.app-ph","authors_text":"Benedikt Schwarz, Daniel Neumaier, Daniel Schall, Kenji Watanabe, Simone Schuler, Takashi Taniguchi, Thomas Mueller","submitted_at":"2019-03-07T15:21:50Z","abstract_excerpt":"We present a graphene photodetector for telecom applications based on a silicon photonic crystal defect waveguide. The photonic structure is used to confine the propagating light in a narrow region in the graphene layer to enhance light-matter interaction. Additionally, it is utilized as split-gate electrode to create a pn-junction in the vicinity of the optical absorption region. The photonic crystal defect waveguide allows for optimal photo-thermoelectric conversion of the occurring temperature profile in graphene into a photovoltage due to additional silicon slabs on both sides of the waveg"},"claims":{"count":0,"items":[],"snapshot_sha256":"258153158e38e3291e3d48162225fcdb2d5a3ed65a07baac614ab91432fd4f57"},"source":{"id":"1903.02983","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":"2026-05-17T23:51:50Z","supersedes":[],"prev_event":null,"signature":{"signature_status":"signed_v1","algorithm":"ed25519","key_id":"pith-v1-2026-05","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54","signature_b64":"Y1HY1pdsx3VWuEGBE/7Im2MkxumIn/rFeS2zU6tm1Jp5npqY/1LTKkYmbvTCbXVkvHRnF1hJB+d2DAQ5T6U+DA==","signed_message":"open_graph_event_sha256_bytes","signed_at":"2026-05-23T08:55:39.301058Z"},"content_sha256":"012413b58662c46cc8894358d585b12360f94b616fd691c03d6fd59f1aab8ba0","schema_version":"1.0","event_id":"sha256:012413b58662c46cc8894358d585b12360f94b616fd691c03d6fd59f1aab8ba0"}],"timestamp_proofs":[],"mirror_hints":[{"mirror_type":"https","name":"Pith Resolver","base_url":"https://pith.science","bundle_url":"https://pith.science/pith/S5UVFPRC7NO5FT4JDPHFVZGMWD/bundle.json","state_url":"https://pith.science/pith/S5UVFPRC7NO5FT4JDPHFVZGMWD/state.json","well_known_bundle_url":"https://pith.science/.well-known/pith/S5UVFPRC7NO5FT4JDPHFVZGMWD/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":"2026-05-23T08:55:39Z","links":{"resolver":"https://pith.science/pith/S5UVFPRC7NO5FT4JDPHFVZGMWD","bundle":"https://pith.science/pith/S5UVFPRC7NO5FT4JDPHFVZGMWD/bundle.json","state":"https://pith.science/pith/S5UVFPRC7NO5FT4JDPHFVZGMWD/state.json","well_known_bundle":"https://pith.science/.well-known/pith/S5UVFPRC7NO5FT4JDPHFVZGMWD/bundle.json"},"state":{"state_type":"pith_open_graph_state","state_version":"1.0","pith_number":"pith:2019:S5UVFPRC7NO5FT4JDPHFVZGMWD","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":"143543650cd0183b124b1c1eb8f1f03b623f600dfd8b880eb6c2753452a2c5e2","cross_cats_sorted":["cond-mat.mes-hall"],"license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"physics.app-ph","submitted_at":"2019-03-07T15:21:50Z","title_canon_sha256":"d84375d6e86cbed3502ed994216438e188e2c8a0c1d68f1b0297ed82e94cd2c4"},"schema_version":"1.0","source":{"id":"1903.02983","kind":"arxiv","version":1}},"source_aliases":[{"alias_kind":"arxiv","alias_value":"1903.02983","created_at":"2026-05-17T23:51:50Z"},{"alias_kind":"arxiv_version","alias_value":"1903.02983v1","created_at":"2026-05-17T23:51:50Z"},{"alias_kind":"doi","alias_value":"10.48550/arxiv.1903.02983","created_at":"2026-05-17T23:51:50Z"},{"alias_kind":"pith_short_12","alias_value":"S5UVFPRC7NO5","created_at":"2026-05-18T12:33:27Z"},{"alias_kind":"pith_short_16","alias_value":"S5UVFPRC7NO5FT4J","created_at":"2026-05-18T12:33:27Z"},{"alias_kind":"pith_short_8","alias_value":"S5UVFPRC","created_at":"2026-05-18T12:33:27Z"}],"graph_snapshots":[{"event_id":"sha256:012413b58662c46cc8894358d585b12360f94b616fd691c03d6fd59f1aab8ba0","target":"graph","created_at":"2026-05-17T23:51:50Z","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 present a graphene photodetector for telecom applications based on a silicon photonic crystal defect waveguide. The photonic structure is used to confine the propagating light in a narrow region in the graphene layer to enhance light-matter interaction. Additionally, it is utilized as split-gate electrode to create a pn-junction in the vicinity of the optical absorption region. The photonic crystal defect waveguide allows for optimal photo-thermoelectric conversion of the occurring temperature profile in graphene into a photovoltage due to additional silicon slabs on both sides of the waveg","authors_text":"Benedikt Schwarz, Daniel Neumaier, Daniel Schall, Kenji Watanabe, Simone Schuler, Takashi Taniguchi, Thomas Mueller","cross_cats":["cond-mat.mes-hall"],"headline":"","license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"physics.app-ph","submitted_at":"2019-03-07T15:21:50Z","title":"Graphene photodetector integrated on a photonic crystal defect waveguide"},"references":{"count":0,"internal_anchors":0,"resolved_work":0,"sample":[],"snapshot_sha256":"258153158e38e3291e3d48162225fcdb2d5a3ed65a07baac614ab91432fd4f57"},"source":{"id":"1903.02983","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":"sha256:6a8feeb3240fe6d2e64aea54b9306f0c1f6d97517e5128b9444c9a18a244805a","target":"record","created_at":"2026-05-17T23:51:50Z","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":"143543650cd0183b124b1c1eb8f1f03b623f600dfd8b880eb6c2753452a2c5e2","cross_cats_sorted":["cond-mat.mes-hall"],"license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"physics.app-ph","submitted_at":"2019-03-07T15:21:50Z","title_canon_sha256":"d84375d6e86cbed3502ed994216438e188e2c8a0c1d68f1b0297ed82e94cd2c4"},"schema_version":"1.0","source":{"id":"1903.02983","kind":"arxiv","version":1}},"canonical_sha256":"976952be22fb5dd2cf891bce5ae4ccb0d2a77c227d32a5ff94a9e2aaeb658995","receipt":{"algorithm":"ed25519","builder_version":"pith-number-builder-2026-05-17-v1","canonical_sha256":"976952be22fb5dd2cf891bce5ae4ccb0d2a77c227d32a5ff94a9e2aaeb658995","first_computed_at":"2026-05-17T23:51:50.485503Z","key_id":"pith-v1-2026-05","kind":"pith_receipt","last_reissued_at":"2026-05-17T23:51:50.485503Z","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54","receipt_version":"0.3","signature_b64":"VIg5LW6bYuurgERUyLny6kR9IoS9TbDwcYlVg4jYbPqGbjTLhlim7pi4iZ0tCjR+H2tXZ3ZvqMAH9+LgBzLRAA==","signature_status":"signed_v1","signed_at":"2026-05-17T23:51:50.486331Z","signed_message":"canonical_sha256_bytes"},"source_id":"1903.02983","source_kind":"arxiv","source_version":1}}},"equivocations":[],"invalid_events":[],"applied_event_ids":["sha256:6a8feeb3240fe6d2e64aea54b9306f0c1f6d97517e5128b9444c9a18a244805a","sha256:012413b58662c46cc8894358d585b12360f94b616fd691c03d6fd59f1aab8ba0"],"state_sha256":"96d24bb76451295508626bda2c7379a77758299e2967fc1f965ae1d497cb82ab"},"bundle_signature":{"signature_status":"signed_v1","algorithm":"ed25519","key_id":"pith-v1-2026-05","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54","signature_b64":"YlKtXrTbIxRk8/vBCIXC8uYMRtTtkJnAxBbd0CD4qaVb6cwuMNrqnM6CF42b7nsv9dHwOKsuucIHe2lxNziCBg==","signed_message":"bundle_sha256_bytes","signed_at":"2026-05-23T08:55:39.304814Z","bundle_sha256":"0feacec9c2d4322c763570831da9d3b1000d57f2536daaf7a6b992fee6fb26b4"}}