{"bundle_type":"pith_open_graph_bundle","bundle_version":"1.0","pith_number":"pith:2019:AK4AHEWEWJNUXINPSL7TIGP7QA","short_pith_number":"pith:AK4AHEWE","canonical_record":{"source":{"id":"1907.02790","kind":"arxiv","version":1},"metadata":{"license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"cs.DB","submitted_at":"2019-07-05T12:16:30Z","cross_cats_sorted":[],"title_canon_sha256":"fc5ae0188590b5ebaa7bb67ea9d07ff069c235de9628f1e5345e9c8b28aa635f","abstract_canon_sha256":"d62c1454a45ab16d3fda16032cef67c9c6e34aead9dd10419665ea7dcfe81ec3"},"schema_version":"1.0"},"canonical_sha256":"02b80392c4b25b4ba1af92ff3419ff8039199da0584884479296ee34fe50bb46","source":{"kind":"arxiv","id":"1907.02790","version":1},"source_aliases":[{"alias_kind":"arxiv","alias_value":"1907.02790","created_at":"2026-05-17T23:41:23Z"},{"alias_kind":"arxiv_version","alias_value":"1907.02790v1","created_at":"2026-05-17T23:41:23Z"},{"alias_kind":"doi","alias_value":"10.48550/arxiv.1907.02790","created_at":"2026-05-17T23:41:23Z"},{"alias_kind":"pith_short_12","alias_value":"AK4AHEWEWJNU","created_at":"2026-05-18T12:33:12Z"},{"alias_kind":"pith_short_16","alias_value":"AK4AHEWEWJNUXINP","created_at":"2026-05-18T12:33:12Z"},{"alias_kind":"pith_short_8","alias_value":"AK4AHEWE","created_at":"2026-05-18T12:33:12Z"}],"events":[{"event_type":"record_created","subject_pith_number":"pith:2019:AK4AHEWEWJNUXINPSL7TIGP7QA","target":"record","payload":{"canonical_record":{"source":{"id":"1907.02790","kind":"arxiv","version":1},"metadata":{"license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"cs.DB","submitted_at":"2019-07-05T12:16:30Z","cross_cats_sorted":[],"title_canon_sha256":"fc5ae0188590b5ebaa7bb67ea9d07ff069c235de9628f1e5345e9c8b28aa635f","abstract_canon_sha256":"d62c1454a45ab16d3fda16032cef67c9c6e34aead9dd10419665ea7dcfe81ec3"},"schema_version":"1.0"},"canonical_sha256":"02b80392c4b25b4ba1af92ff3419ff8039199da0584884479296ee34fe50bb46","receipt":{"kind":"pith_receipt","key_id":"pith-v1-2026-05","algorithm":"ed25519","signed_at":"2026-05-17T23:41:23.098161Z","signature_b64":"sAHPK0mx5UK+xHqFrwGU91AI7as3xSxJUdFFfK72TDcSF9AZU0Vnl4bn7Iuw0US7Ggv4WcWGDl+L9kA52f40Aw==","signed_message":"canonical_sha256_bytes","builder_version":"pith-number-builder-2026-05-17-v1","receipt_version":"0.3","canonical_sha256":"02b80392c4b25b4ba1af92ff3419ff8039199da0584884479296ee34fe50bb46","last_reissued_at":"2026-05-17T23:41:23.097367Z","signature_status":"signed_v1","first_computed_at":"2026-05-17T23:41:23.097367Z","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54"},"source_kind":"arxiv","source_id":"1907.02790","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":"2026-05-17T23:41:23Z","supersedes":[],"prev_event":null,"signature":{"signature_status":"signed_v1","algorithm":"ed25519","key_id":"pith-v1-2026-05","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54","signature_b64":"hdcoAeKfRpUPeRm51/D8WkCbZvtY2jNvh1n2mx9+ozOnpIU5ildG7t+bseF68OReoGPwta+uhZkS2YeHoM+EAg==","signed_message":"open_graph_event_sha256_bytes","signed_at":"2026-05-25T21:48:05.564438Z"},"content_sha256":"811f79d0b6e5d6f66ce9ab7e3b632bd79bc764931a351bd30a7c3e626fb8da6d","schema_version":"1.0","event_id":"sha256:811f79d0b6e5d6f66ce9ab7e3b632bd79bc764931a351bd30a7c3e626fb8da6d"},{"event_type":"graph_snapshot","subject_pith_number":"pith:2019:AK4AHEWEWJNUXINPSL7TIGP7QA","target":"graph","payload":{"graph_snapshot":{"paper":{"title":"Interlinking Heterogeneous Data for Smart Energy Systems","license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","headline":"","cross_cats":[],"primary_cat":"cs.DB","authors_text":"Alan Meehan, Declan O'Sullivan, Fabrizio Orlandi, Murhaf Hossari, Soumyabrata Dev, Tarek AlSkaif","submitted_at":"2019-07-05T12:16:30Z","abstract_excerpt":"Smart energy systems in general, and solar energy analysis in particular, have recently gained increasing interest. This is mainly due to stronger focus on smart energy saving solutions and recent developments in photovoltaic (PV) cells. Various data-driven and machine-learning frameworks are being proposed by the research community. However, these frameworks perform their analysis - and are designed on - specific, heterogeneous and isolated datasets, distributed across different sites and sources, making it hard to compare results and reproduce the analysis on similar data. We propose an appr"},"claims":{"count":0,"items":[],"snapshot_sha256":"258153158e38e3291e3d48162225fcdb2d5a3ed65a07baac614ab91432fd4f57"},"source":{"id":"1907.02790","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":"2026-05-17T23:41:23Z","supersedes":[],"prev_event":null,"signature":{"signature_status":"signed_v1","algorithm":"ed25519","key_id":"pith-v1-2026-05","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54","signature_b64":"sEry3EnmzD/fYAlf8v0IeQzLiclib6XI46JqYN1WvsCRpMUAHVBj7DDbY4gflvmEfHZJZFVr4j4qJ8/Wp7W0BA==","signed_message":"open_graph_event_sha256_bytes","signed_at":"2026-05-25T21:48:05.564800Z"},"content_sha256":"7e260eac94fe9093c8f3934292802a6509ce18b32b69d68bb087742f81601e75","schema_version":"1.0","event_id":"sha256:7e260eac94fe9093c8f3934292802a6509ce18b32b69d68bb087742f81601e75"}],"timestamp_proofs":[],"mirror_hints":[{"mirror_type":"https","name":"Pith Resolver","base_url":"https://pith.science","bundle_url":"https://pith.science/pith/AK4AHEWEWJNUXINPSL7TIGP7QA/bundle.json","state_url":"https://pith.science/pith/AK4AHEWEWJNUXINPSL7TIGP7QA/state.json","well_known_bundle_url":"https://pith.science/.well-known/pith/AK4AHEWEWJNUXINPSL7TIGP7QA/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":"2026-05-25T21:48:05Z","links":{"resolver":"https://pith.science/pith/AK4AHEWEWJNUXINPSL7TIGP7QA","bundle":"https://pith.science/pith/AK4AHEWEWJNUXINPSL7TIGP7QA/bundle.json","state":"https://pith.science/pith/AK4AHEWEWJNUXINPSL7TIGP7QA/state.json","well_known_bundle":"https://pith.science/.well-known/pith/AK4AHEWEWJNUXINPSL7TIGP7QA/bundle.json"},"state":{"state_type":"pith_open_graph_state","state_version":"1.0","pith_number":"pith:2019:AK4AHEWEWJNUXINPSL7TIGP7QA","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":"d62c1454a45ab16d3fda16032cef67c9c6e34aead9dd10419665ea7dcfe81ec3","cross_cats_sorted":[],"license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"cs.DB","submitted_at":"2019-07-05T12:16:30Z","title_canon_sha256":"fc5ae0188590b5ebaa7bb67ea9d07ff069c235de9628f1e5345e9c8b28aa635f"},"schema_version":"1.0","source":{"id":"1907.02790","kind":"arxiv","version":1}},"source_aliases":[{"alias_kind":"arxiv","alias_value":"1907.02790","created_at":"2026-05-17T23:41:23Z"},{"alias_kind":"arxiv_version","alias_value":"1907.02790v1","created_at":"2026-05-17T23:41:23Z"},{"alias_kind":"doi","alias_value":"10.48550/arxiv.1907.02790","created_at":"2026-05-17T23:41:23Z"},{"alias_kind":"pith_short_12","alias_value":"AK4AHEWEWJNU","created_at":"2026-05-18T12:33:12Z"},{"alias_kind":"pith_short_16","alias_value":"AK4AHEWEWJNUXINP","created_at":"2026-05-18T12:33:12Z"},{"alias_kind":"pith_short_8","alias_value":"AK4AHEWE","created_at":"2026-05-18T12:33:12Z"}],"graph_snapshots":[{"event_id":"sha256:7e260eac94fe9093c8f3934292802a6509ce18b32b69d68bb087742f81601e75","target":"graph","created_at":"2026-05-17T23:41:23Z","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":"Smart energy systems in general, and solar energy analysis in particular, have recently gained increasing interest. This is mainly due to stronger focus on smart energy saving solutions and recent developments in photovoltaic (PV) cells. Various data-driven and machine-learning frameworks are being proposed by the research community. However, these frameworks perform their analysis - and are designed on - specific, heterogeneous and isolated datasets, distributed across different sites and sources, making it hard to compare results and reproduce the analysis on similar data. We propose an appr","authors_text":"Alan Meehan, Declan O'Sullivan, Fabrizio Orlandi, Murhaf Hossari, Soumyabrata Dev, Tarek AlSkaif","cross_cats":[],"headline":"","license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"cs.DB","submitted_at":"2019-07-05T12:16:30Z","title":"Interlinking Heterogeneous Data for Smart Energy Systems"},"references":{"count":0,"internal_anchors":0,"resolved_work":0,"sample":[],"snapshot_sha256":"258153158e38e3291e3d48162225fcdb2d5a3ed65a07baac614ab91432fd4f57"},"source":{"id":"1907.02790","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":"sha256:811f79d0b6e5d6f66ce9ab7e3b632bd79bc764931a351bd30a7c3e626fb8da6d","target":"record","created_at":"2026-05-17T23:41:23Z","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":"d62c1454a45ab16d3fda16032cef67c9c6e34aead9dd10419665ea7dcfe81ec3","cross_cats_sorted":[],"license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"cs.DB","submitted_at":"2019-07-05T12:16:30Z","title_canon_sha256":"fc5ae0188590b5ebaa7bb67ea9d07ff069c235de9628f1e5345e9c8b28aa635f"},"schema_version":"1.0","source":{"id":"1907.02790","kind":"arxiv","version":1}},"canonical_sha256":"02b80392c4b25b4ba1af92ff3419ff8039199da0584884479296ee34fe50bb46","receipt":{"algorithm":"ed25519","builder_version":"pith-number-builder-2026-05-17-v1","canonical_sha256":"02b80392c4b25b4ba1af92ff3419ff8039199da0584884479296ee34fe50bb46","first_computed_at":"2026-05-17T23:41:23.097367Z","key_id":"pith-v1-2026-05","kind":"pith_receipt","last_reissued_at":"2026-05-17T23:41:23.097367Z","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54","receipt_version":"0.3","signature_b64":"sAHPK0mx5UK+xHqFrwGU91AI7as3xSxJUdFFfK72TDcSF9AZU0Vnl4bn7Iuw0US7Ggv4WcWGDl+L9kA52f40Aw==","signature_status":"signed_v1","signed_at":"2026-05-17T23:41:23.098161Z","signed_message":"canonical_sha256_bytes"},"source_id":"1907.02790","source_kind":"arxiv","source_version":1}}},"equivocations":[],"invalid_events":[],"applied_event_ids":["sha256:811f79d0b6e5d6f66ce9ab7e3b632bd79bc764931a351bd30a7c3e626fb8da6d","sha256:7e260eac94fe9093c8f3934292802a6509ce18b32b69d68bb087742f81601e75"],"state_sha256":"b5b2d60c60d7cb384f6f9de480c68194c2918087f1e590077fa15146868d3426"},"bundle_signature":{"signature_status":"signed_v1","algorithm":"ed25519","key_id":"pith-v1-2026-05","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54","signature_b64":"6mrHfMyA/K9gR6c0xFZGwQpUmA2a0YdOMl8E3jdVbnB9MzRU1kFje0H9dvhy6AdKXGXayMVMATuYneTD7ychDw==","signed_message":"bundle_sha256_bytes","signed_at":"2026-05-25T21:48:05.568135Z","bundle_sha256":"f6d307a233e59d66bbfd4f8a643af7d2eb70ff228fe0888c1b9eb704164732c1"}}