{"bundle_type":"pith_open_graph_bundle","bundle_version":"1.0","pith_number":"pith:2018:CK5W2JC3XJXTQLWVDFXJ7U3JDI","short_pith_number":"pith:CK5W2JC3","canonical_record":{"source":{"id":"1809.04933","kind":"arxiv","version":2},"metadata":{"license":"http://creativecommons.org/licenses/by/4.0/","primary_cat":"stat.AP","submitted_at":"2018-09-13T13:19:23Z","cross_cats_sorted":["cs.LG","stat.ML"],"title_canon_sha256":"c2c3dd1099231ab34de3708ee121eed603a030425483c6122ad0b8671105cdb3","abstract_canon_sha256":"9bff112d633313543a814e5957c015948cf366bd7c7fb2e4ff0eb95b2715d24b"},"schema_version":"1.0"},"canonical_sha256":"12bb6d245bba6f382ed5196e9fd3691a1535b2afa073f7d615943a2059916115","source":{"kind":"arxiv","id":"1809.04933","version":2},"source_aliases":[{"alias_kind":"arxiv","alias_value":"1809.04933","created_at":"2026-05-17T23:58:18Z"},{"alias_kind":"arxiv_version","alias_value":"1809.04933v2","created_at":"2026-05-17T23:58:18Z"},{"alias_kind":"doi","alias_value":"10.48550/arxiv.1809.04933","created_at":"2026-05-17T23:58:18Z"},{"alias_kind":"pith_short_12","alias_value":"CK5W2JC3XJXT","created_at":"2026-05-18T12:32:16Z"},{"alias_kind":"pith_short_16","alias_value":"CK5W2JC3XJXTQLWV","created_at":"2026-05-18T12:32:16Z"},{"alias_kind":"pith_short_8","alias_value":"CK5W2JC3","created_at":"2026-05-18T12:32:16Z"}],"events":[{"event_type":"record_created","subject_pith_number":"pith:2018:CK5W2JC3XJXTQLWVDFXJ7U3JDI","target":"record","payload":{"canonical_record":{"source":{"id":"1809.04933","kind":"arxiv","version":2},"metadata":{"license":"http://creativecommons.org/licenses/by/4.0/","primary_cat":"stat.AP","submitted_at":"2018-09-13T13:19:23Z","cross_cats_sorted":["cs.LG","stat.ML"],"title_canon_sha256":"c2c3dd1099231ab34de3708ee121eed603a030425483c6122ad0b8671105cdb3","abstract_canon_sha256":"9bff112d633313543a814e5957c015948cf366bd7c7fb2e4ff0eb95b2715d24b"},"schema_version":"1.0"},"canonical_sha256":"12bb6d245bba6f382ed5196e9fd3691a1535b2afa073f7d615943a2059916115","receipt":{"kind":"pith_receipt","key_id":"pith-v1-2026-05","algorithm":"ed25519","signed_at":"2026-05-17T23:58:18.969187Z","signature_b64":"rW7povqytT5PDQ+D5vYRfziCkte2Gm0jsTWLZg7SKkFqVDSp7iAo1ayFPZeuCPur+PrJdtnzhpO30r1d/+f7Ag==","signed_message":"canonical_sha256_bytes","builder_version":"pith-number-builder-2026-05-17-v1","receipt_version":"0.3","canonical_sha256":"12bb6d245bba6f382ed5196e9fd3691a1535b2afa073f7d615943a2059916115","last_reissued_at":"2026-05-17T23:58:18.968548Z","signature_status":"signed_v1","first_computed_at":"2026-05-17T23:58:18.968548Z","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54"},"source_kind":"arxiv","source_id":"1809.04933","source_version":2,"attestation_state":"computed"},"signer":{"signer_id":"pith.science","signer_type":"pith_registry","key_id":"pith-v1-2026-05","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54"},"created_at":"2026-05-17T23:58:18Z","supersedes":[],"prev_event":null,"signature":{"signature_status":"signed_v1","algorithm":"ed25519","key_id":"pith-v1-2026-05","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54","signature_b64":"V9WNzvQcUL44dOYTxRp4iknC2pM24AXKfrMyxTjMxp4sBXKxNWre1S6mRsJ/yYuRWumxsPDu9k8Ip7l/ZLuMDA==","signed_message":"open_graph_event_sha256_bytes","signed_at":"2026-05-28T03:58:20.285406Z"},"content_sha256":"1076ac9c374ab0e80e242db7a892ca2fce4389061147af9e2dd74c656da776cc","schema_version":"1.0","event_id":"sha256:1076ac9c374ab0e80e242db7a892ca2fce4389061147af9e2dd74c656da776cc"},{"event_type":"graph_snapshot","subject_pith_number":"pith:2018:CK5W2JC3XJXTQLWVDFXJ7U3JDI","target":"graph","payload":{"graph_snapshot":{"paper":{"title":"Identifying Real Estate Opportunities using Machine Learning","license":"http://creativecommons.org/licenses/by/4.0/","headline":"","cross_cats":["cs.LG","stat.ML"],"primary_cat":"stat.AP","authors_text":"Alejandro Baldominos, Antonio Jos\\'e Moreno, Carlos Afonso, Iv\\'an Blanco, \\'Oscar Bern\\'ardez, Rub\\'en Iturrarte","submitted_at":"2018-09-13T13:19:23Z","abstract_excerpt":"The real estate market is exposed to many fluctuations in prices because of existing correlations with many variables, some of which cannot be controlled or might even be unknown. Housing prices can increase rapidly (or in some cases, also drop very fast), yet the numerous listings available online where houses are sold or rented are not likely to be updated that often. In some cases, individuals interested in selling a house (or apartment) might include it in some online listing, and forget about updating the price. In other cases, some individuals might be interested in deliberately setting "},"claims":{"count":0,"items":[],"snapshot_sha256":"258153158e38e3291e3d48162225fcdb2d5a3ed65a07baac614ab91432fd4f57"},"source":{"id":"1809.04933","kind":"arxiv","version":2},"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":"2026-05-17T23:58:18Z","supersedes":[],"prev_event":null,"signature":{"signature_status":"signed_v1","algorithm":"ed25519","key_id":"pith-v1-2026-05","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54","signature_b64":"2sEF545vKbXUIcq29pWcG82iaWE3rKLfUMzM/PIxq9IPdrp4p4wvnED+hZNnMpU8vi3j3KdwVr4kkElw/WfIAQ==","signed_message":"open_graph_event_sha256_bytes","signed_at":"2026-05-28T03:58:20.285793Z"},"content_sha256":"8c896b3ab7819653950b107efb60c1d563a95d66c8ea2aaddb1f6561c8b0ff51","schema_version":"1.0","event_id":"sha256:8c896b3ab7819653950b107efb60c1d563a95d66c8ea2aaddb1f6561c8b0ff51"}],"timestamp_proofs":[],"mirror_hints":[{"mirror_type":"https","name":"Pith Resolver","base_url":"https://pith.science","bundle_url":"https://pith.science/pith/CK5W2JC3XJXTQLWVDFXJ7U3JDI/bundle.json","state_url":"https://pith.science/pith/CK5W2JC3XJXTQLWVDFXJ7U3JDI/state.json","well_known_bundle_url":"https://pith.science/.well-known/pith/CK5W2JC3XJXTQLWVDFXJ7U3JDI/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":"2026-05-28T03:58:20Z","links":{"resolver":"https://pith.science/pith/CK5W2JC3XJXTQLWVDFXJ7U3JDI","bundle":"https://pith.science/pith/CK5W2JC3XJXTQLWVDFXJ7U3JDI/bundle.json","state":"https://pith.science/pith/CK5W2JC3XJXTQLWVDFXJ7U3JDI/state.json","well_known_bundle":"https://pith.science/.well-known/pith/CK5W2JC3XJXTQLWVDFXJ7U3JDI/bundle.json"},"state":{"state_type":"pith_open_graph_state","state_version":"1.0","pith_number":"pith:2018:CK5W2JC3XJXTQLWVDFXJ7U3JDI","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":"9bff112d633313543a814e5957c015948cf366bd7c7fb2e4ff0eb95b2715d24b","cross_cats_sorted":["cs.LG","stat.ML"],"license":"http://creativecommons.org/licenses/by/4.0/","primary_cat":"stat.AP","submitted_at":"2018-09-13T13:19:23Z","title_canon_sha256":"c2c3dd1099231ab34de3708ee121eed603a030425483c6122ad0b8671105cdb3"},"schema_version":"1.0","source":{"id":"1809.04933","kind":"arxiv","version":2}},"source_aliases":[{"alias_kind":"arxiv","alias_value":"1809.04933","created_at":"2026-05-17T23:58:18Z"},{"alias_kind":"arxiv_version","alias_value":"1809.04933v2","created_at":"2026-05-17T23:58:18Z"},{"alias_kind":"doi","alias_value":"10.48550/arxiv.1809.04933","created_at":"2026-05-17T23:58:18Z"},{"alias_kind":"pith_short_12","alias_value":"CK5W2JC3XJXT","created_at":"2026-05-18T12:32:16Z"},{"alias_kind":"pith_short_16","alias_value":"CK5W2JC3XJXTQLWV","created_at":"2026-05-18T12:32:16Z"},{"alias_kind":"pith_short_8","alias_value":"CK5W2JC3","created_at":"2026-05-18T12:32:16Z"}],"graph_snapshots":[{"event_id":"sha256:8c896b3ab7819653950b107efb60c1d563a95d66c8ea2aaddb1f6561c8b0ff51","target":"graph","created_at":"2026-05-17T23:58:18Z","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":"The real estate market is exposed to many fluctuations in prices because of existing correlations with many variables, some of which cannot be controlled or might even be unknown. Housing prices can increase rapidly (or in some cases, also drop very fast), yet the numerous listings available online where houses are sold or rented are not likely to be updated that often. In some cases, individuals interested in selling a house (or apartment) might include it in some online listing, and forget about updating the price. In other cases, some individuals might be interested in deliberately setting ","authors_text":"Alejandro Baldominos, Antonio Jos\\'e Moreno, Carlos Afonso, Iv\\'an Blanco, \\'Oscar Bern\\'ardez, Rub\\'en Iturrarte","cross_cats":["cs.LG","stat.ML"],"headline":"","license":"http://creativecommons.org/licenses/by/4.0/","primary_cat":"stat.AP","submitted_at":"2018-09-13T13:19:23Z","title":"Identifying Real Estate Opportunities using Machine Learning"},"references":{"count":0,"internal_anchors":0,"resolved_work":0,"sample":[],"snapshot_sha256":"258153158e38e3291e3d48162225fcdb2d5a3ed65a07baac614ab91432fd4f57"},"source":{"id":"1809.04933","kind":"arxiv","version":2},"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":"sha256:1076ac9c374ab0e80e242db7a892ca2fce4389061147af9e2dd74c656da776cc","target":"record","created_at":"2026-05-17T23:58:18Z","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":"9bff112d633313543a814e5957c015948cf366bd7c7fb2e4ff0eb95b2715d24b","cross_cats_sorted":["cs.LG","stat.ML"],"license":"http://creativecommons.org/licenses/by/4.0/","primary_cat":"stat.AP","submitted_at":"2018-09-13T13:19:23Z","title_canon_sha256":"c2c3dd1099231ab34de3708ee121eed603a030425483c6122ad0b8671105cdb3"},"schema_version":"1.0","source":{"id":"1809.04933","kind":"arxiv","version":2}},"canonical_sha256":"12bb6d245bba6f382ed5196e9fd3691a1535b2afa073f7d615943a2059916115","receipt":{"algorithm":"ed25519","builder_version":"pith-number-builder-2026-05-17-v1","canonical_sha256":"12bb6d245bba6f382ed5196e9fd3691a1535b2afa073f7d615943a2059916115","first_computed_at":"2026-05-17T23:58:18.968548Z","key_id":"pith-v1-2026-05","kind":"pith_receipt","last_reissued_at":"2026-05-17T23:58:18.968548Z","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54","receipt_version":"0.3","signature_b64":"rW7povqytT5PDQ+D5vYRfziCkte2Gm0jsTWLZg7SKkFqVDSp7iAo1ayFPZeuCPur+PrJdtnzhpO30r1d/+f7Ag==","signature_status":"signed_v1","signed_at":"2026-05-17T23:58:18.969187Z","signed_message":"canonical_sha256_bytes"},"source_id":"1809.04933","source_kind":"arxiv","source_version":2}}},"equivocations":[],"invalid_events":[],"applied_event_ids":["sha256:1076ac9c374ab0e80e242db7a892ca2fce4389061147af9e2dd74c656da776cc","sha256:8c896b3ab7819653950b107efb60c1d563a95d66c8ea2aaddb1f6561c8b0ff51"],"state_sha256":"f9b1c46e67d7a5e298e7363d407987055950609ed112f6ebe7987e39b24a6b44"},"bundle_signature":{"signature_status":"signed_v1","algorithm":"ed25519","key_id":"pith-v1-2026-05","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54","signature_b64":"G6sphVZX2nxiudvoptjbKNeIrmBIs8eIYE83+w8xqncNoQxAKXiUwSIXzdKH0ZlARSm2oIR+rCk6N1MxtY5qDw==","signed_message":"bundle_sha256_bytes","signed_at":"2026-05-28T03:58:20.287843Z","bundle_sha256":"2baba411484745252b3242da764907d7aeca12ff537c9e177bed5faef507a580"}}