{"bundle_type":"pith_open_graph_bundle","bundle_version":"1.0","pith_number":"pith:2021:TR6IXUY6PLRFZWPSDB4EUZSIZE","short_pith_number":"pith:TR6IXUY6","canonical_record":{"source":{"id":"2103.04924","kind":"arxiv","version":1},"metadata":{"license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"cs.HC","submitted_at":"2021-03-08T17:36:54Z","cross_cats_sorted":[],"title_canon_sha256":"87e0957779100bd653f6992a7b8eeb3d74d9c86b6a6187cac107d6bb8dd97965","abstract_canon_sha256":"36788baaba01eaaadcdfb91c5c053dd073a0102e6e0d18031bde29e9131e7b51"},"schema_version":"1.0"},"canonical_sha256":"9c7c8bd31e7ae25cd9f218784a6648c900b99e62651376741f0110d7253d3ca9","source":{"kind":"arxiv","id":"2103.04924","version":1},"source_aliases":[{"alias_kind":"arxiv","alias_value":"2103.04924","created_at":"2026-07-05T02:21:10Z"},{"alias_kind":"arxiv_version","alias_value":"2103.04924v1","created_at":"2026-07-05T02:21:10Z"},{"alias_kind":"doi","alias_value":"10.48550/arxiv.2103.04924","created_at":"2026-07-05T02:21:10Z"},{"alias_kind":"pith_short_12","alias_value":"TR6IXUY6PLRF","created_at":"2026-07-05T02:21:10Z"},{"alias_kind":"pith_short_16","alias_value":"TR6IXUY6PLRFZWPS","created_at":"2026-07-05T02:21:10Z"},{"alias_kind":"pith_short_8","alias_value":"TR6IXUY6","created_at":"2026-07-05T02:21:10Z"}],"events":[{"event_type":"record_created","subject_pith_number":"pith:2021:TR6IXUY6PLRFZWPSDB4EUZSIZE","target":"record","payload":{"canonical_record":{"source":{"id":"2103.04924","kind":"arxiv","version":1},"metadata":{"license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"cs.HC","submitted_at":"2021-03-08T17:36:54Z","cross_cats_sorted":[],"title_canon_sha256":"87e0957779100bd653f6992a7b8eeb3d74d9c86b6a6187cac107d6bb8dd97965","abstract_canon_sha256":"36788baaba01eaaadcdfb91c5c053dd073a0102e6e0d18031bde29e9131e7b51"},"schema_version":"1.0"},"canonical_sha256":"9c7c8bd31e7ae25cd9f218784a6648c900b99e62651376741f0110d7253d3ca9","receipt":{"kind":"pith_receipt","key_id":"pith-v1-2026-05","algorithm":"ed25519","signed_at":"2026-07-05T02:21:10.446411Z","signature_b64":"gcGlYP+rRpGXJWmaVcsQgTM+YdPv6N2VQEgTmVKC0KEJZs/xdNAn8nKk2B90I9GDw2Abx+oGUC3YieaUR3YUDg==","signed_message":"canonical_sha256_bytes","builder_version":"pith-number-builder-2026-05-17-v1","receipt_version":"0.3","canonical_sha256":"9c7c8bd31e7ae25cd9f218784a6648c900b99e62651376741f0110d7253d3ca9","last_reissued_at":"2026-07-05T02:21:10.445981Z","signature_status":"signed_v1","first_computed_at":"2026-07-05T02:21:10.445981Z","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54"},"source_kind":"arxiv","source_id":"2103.04924","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":"2026-07-05T02:21:10Z","supersedes":[],"prev_event":null,"signature":{"signature_status":"signed_v1","algorithm":"ed25519","key_id":"pith-v1-2026-05","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54","signature_b64":"F7nne7VrClMadkKF1hlxFVM3qel2ijahMG0Coy+43GfWYqTaDY9x0gopj4gb8nmWAVBIkoIFUUhalmkstldKCQ==","signed_message":"open_graph_event_sha256_bytes","signed_at":"2026-07-26T13:38:37.495459Z"},"content_sha256":"cbfdfb231e62fae00010a26ec366020776a8bd863d1ad0a914c2fe3c69408927","schema_version":"1.0","event_id":"sha256:cbfdfb231e62fae00010a26ec366020776a8bd863d1ad0a914c2fe3c69408927"},{"event_type":"graph_snapshot","subject_pith_number":"pith:2021:TR6IXUY6PLRFZWPSDB4EUZSIZE","target":"graph","payload":{"graph_snapshot":{"paper":{"title":"Data Management for Building Information Modelling in a Real-Time Adaptive City Platform","license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","headline":"","cross_cats":[],"primary_cat":"cs.HC","authors_text":"Ian Lewis, Jorge Merino, Justas Brazauskas, Matthew Danish, Richard Mortier, Rohit Verma, Vadim Safronov, Xiang Xie","submitted_at":"2021-03-08T17:36:54Z","abstract_excerpt":"Legacy Building Information Modelling (BIM) systems are not designed to process the high-volume, high-velocity data emitted by in-building Internet-of-Things (IoT) sensors. Historical lack of consideration for the real-time nature of such data means that outputs from such BIM systems typically lack the timeliness necessary for enacting decisions as a result of patterns emerging in the sensor data. Similarly, as sensors are increasingly deployed in buildings, antiquated Building Management Systems (BMSs) struggle to maintain functionality as interoperability challenges increase. In combination "},"claims":{"count":0,"items":[],"snapshot_sha256":"258153158e38e3291e3d48162225fcdb2d5a3ed65a07baac614ab91432fd4f57"},"source":{"id":"2103.04924","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/2103.04924/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":"2026-07-05T02:21:10Z","supersedes":[],"prev_event":null,"signature":{"signature_status":"signed_v1","algorithm":"ed25519","key_id":"pith-v1-2026-05","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54","signature_b64":"QWubykMuaDJiVowHODAVdRjvzB3gby/aSMdPZzq4WaUZVLTEk/oQGetYjekwzotYUV5tPby1tUxVy/j7uqAmCg==","signed_message":"open_graph_event_sha256_bytes","signed_at":"2026-07-26T13:38:37.495838Z"},"content_sha256":"aea66b28ebcd5e22fa0db7eafa5ed91ec4d3db4556b9270a78dc4eadceec1567","schema_version":"1.0","event_id":"sha256:aea66b28ebcd5e22fa0db7eafa5ed91ec4d3db4556b9270a78dc4eadceec1567"}],"timestamp_proofs":[],"mirror_hints":[{"mirror_type":"https","name":"Pith Resolver","base_url":"https://pith.science","bundle_url":"https://pith.science/pith/TR6IXUY6PLRFZWPSDB4EUZSIZE/bundle.json","state_url":"https://pith.science/pith/TR6IXUY6PLRFZWPSDB4EUZSIZE/state.json","well_known_bundle_url":"https://pith.science/.well-known/pith/TR6IXUY6PLRFZWPSDB4EUZSIZE/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":"2026-07-26T13:38:37Z","links":{"resolver":"https://pith.science/pith/TR6IXUY6PLRFZWPSDB4EUZSIZE","bundle":"https://pith.science/pith/TR6IXUY6PLRFZWPSDB4EUZSIZE/bundle.json","state":"https://pith.science/pith/TR6IXUY6PLRFZWPSDB4EUZSIZE/state.json","well_known_bundle":"https://pith.science/.well-known/pith/TR6IXUY6PLRFZWPSDB4EUZSIZE/bundle.json"},"state":{"state_type":"pith_open_graph_state","state_version":"1.0","pith_number":"pith:2021:TR6IXUY6PLRFZWPSDB4EUZSIZE","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":"36788baaba01eaaadcdfb91c5c053dd073a0102e6e0d18031bde29e9131e7b51","cross_cats_sorted":[],"license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"cs.HC","submitted_at":"2021-03-08T17:36:54Z","title_canon_sha256":"87e0957779100bd653f6992a7b8eeb3d74d9c86b6a6187cac107d6bb8dd97965"},"schema_version":"1.0","source":{"id":"2103.04924","kind":"arxiv","version":1}},"source_aliases":[{"alias_kind":"arxiv","alias_value":"2103.04924","created_at":"2026-07-05T02:21:10Z"},{"alias_kind":"arxiv_version","alias_value":"2103.04924v1","created_at":"2026-07-05T02:21:10Z"},{"alias_kind":"doi","alias_value":"10.48550/arxiv.2103.04924","created_at":"2026-07-05T02:21:10Z"},{"alias_kind":"pith_short_12","alias_value":"TR6IXUY6PLRF","created_at":"2026-07-05T02:21:10Z"},{"alias_kind":"pith_short_16","alias_value":"TR6IXUY6PLRFZWPS","created_at":"2026-07-05T02:21:10Z"},{"alias_kind":"pith_short_8","alias_value":"TR6IXUY6","created_at":"2026-07-05T02:21:10Z"}],"graph_snapshots":[{"event_id":"sha256:aea66b28ebcd5e22fa0db7eafa5ed91ec4d3db4556b9270a78dc4eadceec1567","target":"graph","created_at":"2026-07-05T02:21:10Z","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/2103.04924/integrity.json","findings":[],"snapshot_sha256":"c28c3603d3b5d939e8dc4c7e95fa8dfce3d595e45f758748cecf8e644a296938","summary":{"advisory":0,"by_detector":{},"critical":0,"informational":0}},"paper":{"abstract_excerpt":"Legacy Building Information Modelling (BIM) systems are not designed to process the high-volume, high-velocity data emitted by in-building Internet-of-Things (IoT) sensors. Historical lack of consideration for the real-time nature of such data means that outputs from such BIM systems typically lack the timeliness necessary for enacting decisions as a result of patterns emerging in the sensor data. Similarly, as sensors are increasingly deployed in buildings, antiquated Building Management Systems (BMSs) struggle to maintain functionality as interoperability challenges increase. In combination ","authors_text":"Ian Lewis, Jorge Merino, Justas Brazauskas, Matthew Danish, Richard Mortier, Rohit Verma, Vadim Safronov, Xiang Xie","cross_cats":[],"headline":"","license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"cs.HC","submitted_at":"2021-03-08T17:36:54Z","title":"Data Management for Building Information Modelling in a Real-Time Adaptive City Platform"},"references":{"count":0,"internal_anchors":0,"resolved_work":0,"sample":[],"snapshot_sha256":"258153158e38e3291e3d48162225fcdb2d5a3ed65a07baac614ab91432fd4f57"},"source":{"id":"2103.04924","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:cbfdfb231e62fae00010a26ec366020776a8bd863d1ad0a914c2fe3c69408927","target":"record","created_at":"2026-07-05T02:21:10Z","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":"36788baaba01eaaadcdfb91c5c053dd073a0102e6e0d18031bde29e9131e7b51","cross_cats_sorted":[],"license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"cs.HC","submitted_at":"2021-03-08T17:36:54Z","title_canon_sha256":"87e0957779100bd653f6992a7b8eeb3d74d9c86b6a6187cac107d6bb8dd97965"},"schema_version":"1.0","source":{"id":"2103.04924","kind":"arxiv","version":1}},"canonical_sha256":"9c7c8bd31e7ae25cd9f218784a6648c900b99e62651376741f0110d7253d3ca9","receipt":{"algorithm":"ed25519","builder_version":"pith-number-builder-2026-05-17-v1","canonical_sha256":"9c7c8bd31e7ae25cd9f218784a6648c900b99e62651376741f0110d7253d3ca9","first_computed_at":"2026-07-05T02:21:10.445981Z","key_id":"pith-v1-2026-05","kind":"pith_receipt","last_reissued_at":"2026-07-05T02:21:10.445981Z","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54","receipt_version":"0.3","signature_b64":"gcGlYP+rRpGXJWmaVcsQgTM+YdPv6N2VQEgTmVKC0KEJZs/xdNAn8nKk2B90I9GDw2Abx+oGUC3YieaUR3YUDg==","signature_status":"signed_v1","signed_at":"2026-07-05T02:21:10.446411Z","signed_message":"canonical_sha256_bytes"},"source_id":"2103.04924","source_kind":"arxiv","source_version":1}}},"equivocations":[],"invalid_events":[],"applied_event_ids":["sha256:cbfdfb231e62fae00010a26ec366020776a8bd863d1ad0a914c2fe3c69408927","sha256:aea66b28ebcd5e22fa0db7eafa5ed91ec4d3db4556b9270a78dc4eadceec1567"],"state_sha256":"60c534172a79d6cac17e92b59e22fdd453cb896d0313430fdc20318b763cfe6a"},"bundle_signature":{"signature_status":"signed_v1","algorithm":"ed25519","key_id":"pith-v1-2026-05","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54","signature_b64":"aIhixFTwn1LYPZye6rU+AMGFGKzkyvffX9zFNWWbhOVW/g3rXFkwzchGdpc4iJ1SL77V4thVx+Q3wXvgeyD0Dg==","signed_message":"bundle_sha256_bytes","signed_at":"2026-07-26T13:38:37.498489Z","bundle_sha256":"e68c8e395deec46f49f3f121f3ffe58e754b813ae6d7b7ab5428f70253ffd5d8"}}