{"bundle_type":"pith_open_graph_bundle","bundle_version":"1.0","pith_number":"pith:2021:OW4II7M3YCXIOTKE5YPTEPHS2Z","short_pith_number":"pith:OW4II7M3","canonical_record":{"source":{"id":"2111.12039","kind":"arxiv","version":2},"metadata":{"license":"http://creativecommons.org/licenses/by/4.0/","primary_cat":"eess.SY","submitted_at":"2021-11-23T17:49:02Z","cross_cats_sorted":["cs.SY"],"title_canon_sha256":"49c127bd9b826d82ce5d6994a1d3f480b2c35eef74b3a500b785f2b11d0cda33","abstract_canon_sha256":"c681817807d33284f41e4c7dc3da5a238ff3f244ad0e19a32b17ca2c8354aa5e"},"schema_version":"1.0"},"canonical_sha256":"75b8847d9bc0ae874d44ee1f323cf2d65b46bdc51b0429d305d23bebaa4ebc4c","source":{"kind":"arxiv","id":"2111.12039","version":2},"source_aliases":[{"alias_kind":"arxiv","alias_value":"2111.12039","created_at":"2026-07-05T05:02:56Z"},{"alias_kind":"arxiv_version","alias_value":"2111.12039v2","created_at":"2026-07-05T05:02:56Z"},{"alias_kind":"doi","alias_value":"10.48550/arxiv.2111.12039","created_at":"2026-07-05T05:02:56Z"},{"alias_kind":"pith_short_12","alias_value":"OW4II7M3YCXI","created_at":"2026-07-05T05:02:56Z"},{"alias_kind":"pith_short_16","alias_value":"OW4II7M3YCXIOTKE","created_at":"2026-07-05T05:02:56Z"},{"alias_kind":"pith_short_8","alias_value":"OW4II7M3","created_at":"2026-07-05T05:02:56Z"}],"events":[{"event_type":"record_created","subject_pith_number":"pith:2021:OW4II7M3YCXIOTKE5YPTEPHS2Z","target":"record","payload":{"canonical_record":{"source":{"id":"2111.12039","kind":"arxiv","version":2},"metadata":{"license":"http://creativecommons.org/licenses/by/4.0/","primary_cat":"eess.SY","submitted_at":"2021-11-23T17:49:02Z","cross_cats_sorted":["cs.SY"],"title_canon_sha256":"49c127bd9b826d82ce5d6994a1d3f480b2c35eef74b3a500b785f2b11d0cda33","abstract_canon_sha256":"c681817807d33284f41e4c7dc3da5a238ff3f244ad0e19a32b17ca2c8354aa5e"},"schema_version":"1.0"},"canonical_sha256":"75b8847d9bc0ae874d44ee1f323cf2d65b46bdc51b0429d305d23bebaa4ebc4c","receipt":{"kind":"pith_receipt","key_id":"pith-v1-2026-05","algorithm":"ed25519","signed_at":"2026-07-05T05:02:56.052729Z","signature_b64":"QadyoaZTuFPSTfbbWsLYYj+pL8wWmhr/yoYEvcD0a2UccsHUY4UnU4kpoy2d9FN1o1jPhf+TyrUs1VwTofkvDg==","signed_message":"canonical_sha256_bytes","builder_version":"pith-number-builder-2026-05-17-v1","receipt_version":"0.3","canonical_sha256":"75b8847d9bc0ae874d44ee1f323cf2d65b46bdc51b0429d305d23bebaa4ebc4c","last_reissued_at":"2026-07-05T05:02:56.052276Z","signature_status":"signed_v1","first_computed_at":"2026-07-05T05:02:56.052276Z","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54"},"source_kind":"arxiv","source_id":"2111.12039","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":"2026-07-05T05:02:56Z","supersedes":[],"prev_event":null,"signature":{"signature_status":"signed_v1","algorithm":"ed25519","key_id":"pith-v1-2026-05","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54","signature_b64":"N+vX7aoM9bzXlnrEyORaZSxyiHm0pwrt/K0tAxc3vyaooXCRm0AdCFLtraUP4zb4AMFTvdBLMzb4P5hhCGfvCw==","signed_message":"open_graph_event_sha256_bytes","signed_at":"2026-08-23T13:27:48.882578Z"},"content_sha256":"28b5f94d17cbba1442ae1fcb478f4696201fc02e364ed4cef9f280b9931d12b2","schema_version":"1.0","event_id":"sha256:28b5f94d17cbba1442ae1fcb478f4696201fc02e364ed4cef9f280b9931d12b2"},{"event_type":"graph_snapshot","subject_pith_number":"pith:2021:OW4II7M3YCXIOTKE5YPTEPHS2Z","target":"graph","payload":{"graph_snapshot":{"paper":{"title":"Energy control of HVAC units for provable ancillary service provision","license":"http://creativecommons.org/licenses/by/4.0/","headline":"","cross_cats":["cs.SY"],"primary_cat":"eess.SY","authors_text":"Marija D. Ilic, Mario Garcia- Sanz, Mirjana Marden, Rupamathi Jaddivada, Sonja Glavaski","submitted_at":"2021-11-23T17:49:02Z","abstract_excerpt":"In this paper, we consider the problem of controlling power consumption dynamics of residential heating, ventilation and air conditioning (HVAC) units so that they follow the grid-side power specifications. In order to do so, we design a novel dynamical energy controller which ensures regulation of the cumulative effects of power imbalances. For this, we derive a novel energy-based model that relates the HVAC physics-based dynamics to both real and reactive power balance at the point of interconnection with the grid. In contrast to several other approaches in the literature, we show that a lim"},"claims":{"count":0,"items":[],"snapshot_sha256":"258153158e38e3291e3d48162225fcdb2d5a3ed65a07baac614ab91432fd4f57"},"source":{"id":"2111.12039","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":""},"integrity":{"clean":true,"summary":{"advisory":0,"critical":0,"by_detector":{},"informational":0},"endpoint":"/pith/2111.12039/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":"2026-07-05T05:02:56Z","supersedes":[],"prev_event":null,"signature":{"signature_status":"signed_v1","algorithm":"ed25519","key_id":"pith-v1-2026-05","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54","signature_b64":"96bS4l/sr98k+Q+VE0D83roRkZDi13HBBp2cQsLSRAizT0xepmxSxe8WqNVfc2HUAscG+0TOdqPIuBevzh6rAQ==","signed_message":"open_graph_event_sha256_bytes","signed_at":"2026-08-23T13:27:48.883116Z"},"content_sha256":"f8558b73ad71964fcde914f9391b7708d7b099c8bfd4081d5932c56d219c065c","schema_version":"1.0","event_id":"sha256:f8558b73ad71964fcde914f9391b7708d7b099c8bfd4081d5932c56d219c065c"}],"timestamp_proofs":[],"mirror_hints":[{"mirror_type":"https","name":"Pith Resolver","base_url":"https://pith.science","bundle_url":"https://pith.science/pith/OW4II7M3YCXIOTKE5YPTEPHS2Z/bundle.json","state_url":"https://pith.science/pith/OW4II7M3YCXIOTKE5YPTEPHS2Z/state.json","well_known_bundle_url":"https://pith.science/.well-known/pith/OW4II7M3YCXIOTKE5YPTEPHS2Z/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":"2026-08-23T13:27:48Z","links":{"resolver":"https://pith.science/pith/OW4II7M3YCXIOTKE5YPTEPHS2Z","bundle":"https://pith.science/pith/OW4II7M3YCXIOTKE5YPTEPHS2Z/bundle.json","state":"https://pith.science/pith/OW4II7M3YCXIOTKE5YPTEPHS2Z/state.json","well_known_bundle":"https://pith.science/.well-known/pith/OW4II7M3YCXIOTKE5YPTEPHS2Z/bundle.json"},"state":{"state_type":"pith_open_graph_state","state_version":"1.0","pith_number":"pith:2021:OW4II7M3YCXIOTKE5YPTEPHS2Z","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":"c681817807d33284f41e4c7dc3da5a238ff3f244ad0e19a32b17ca2c8354aa5e","cross_cats_sorted":["cs.SY"],"license":"http://creativecommons.org/licenses/by/4.0/","primary_cat":"eess.SY","submitted_at":"2021-11-23T17:49:02Z","title_canon_sha256":"49c127bd9b826d82ce5d6994a1d3f480b2c35eef74b3a500b785f2b11d0cda33"},"schema_version":"1.0","source":{"id":"2111.12039","kind":"arxiv","version":2}},"source_aliases":[{"alias_kind":"arxiv","alias_value":"2111.12039","created_at":"2026-07-05T05:02:56Z"},{"alias_kind":"arxiv_version","alias_value":"2111.12039v2","created_at":"2026-07-05T05:02:56Z"},{"alias_kind":"doi","alias_value":"10.48550/arxiv.2111.12039","created_at":"2026-07-05T05:02:56Z"},{"alias_kind":"pith_short_12","alias_value":"OW4II7M3YCXI","created_at":"2026-07-05T05:02:56Z"},{"alias_kind":"pith_short_16","alias_value":"OW4II7M3YCXIOTKE","created_at":"2026-07-05T05:02:56Z"},{"alias_kind":"pith_short_8","alias_value":"OW4II7M3","created_at":"2026-07-05T05:02:56Z"}],"graph_snapshots":[{"event_id":"sha256:f8558b73ad71964fcde914f9391b7708d7b099c8bfd4081d5932c56d219c065c","target":"graph","created_at":"2026-07-05T05:02:56Z","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/2111.12039/integrity.json","findings":[],"snapshot_sha256":"c28c3603d3b5d939e8dc4c7e95fa8dfce3d595e45f758748cecf8e644a296938","summary":{"advisory":0,"by_detector":{},"critical":0,"informational":0}},"paper":{"abstract_excerpt":"In this paper, we consider the problem of controlling power consumption dynamics of residential heating, ventilation and air conditioning (HVAC) units so that they follow the grid-side power specifications. In order to do so, we design a novel dynamical energy controller which ensures regulation of the cumulative effects of power imbalances. For this, we derive a novel energy-based model that relates the HVAC physics-based dynamics to both real and reactive power balance at the point of interconnection with the grid. In contrast to several other approaches in the literature, we show that a lim","authors_text":"Marija D. Ilic, Mario Garcia- Sanz, Mirjana Marden, Rupamathi Jaddivada, Sonja Glavaski","cross_cats":["cs.SY"],"headline":"","license":"http://creativecommons.org/licenses/by/4.0/","primary_cat":"eess.SY","submitted_at":"2021-11-23T17:49:02Z","title":"Energy control of HVAC units for provable ancillary service provision"},"references":{"count":0,"internal_anchors":0,"resolved_work":0,"sample":[],"snapshot_sha256":"258153158e38e3291e3d48162225fcdb2d5a3ed65a07baac614ab91432fd4f57"},"source":{"id":"2111.12039","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":"sha256:28b5f94d17cbba1442ae1fcb478f4696201fc02e364ed4cef9f280b9931d12b2","target":"record","created_at":"2026-07-05T05:02:56Z","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":"c681817807d33284f41e4c7dc3da5a238ff3f244ad0e19a32b17ca2c8354aa5e","cross_cats_sorted":["cs.SY"],"license":"http://creativecommons.org/licenses/by/4.0/","primary_cat":"eess.SY","submitted_at":"2021-11-23T17:49:02Z","title_canon_sha256":"49c127bd9b826d82ce5d6994a1d3f480b2c35eef74b3a500b785f2b11d0cda33"},"schema_version":"1.0","source":{"id":"2111.12039","kind":"arxiv","version":2}},"canonical_sha256":"75b8847d9bc0ae874d44ee1f323cf2d65b46bdc51b0429d305d23bebaa4ebc4c","receipt":{"algorithm":"ed25519","builder_version":"pith-number-builder-2026-05-17-v1","canonical_sha256":"75b8847d9bc0ae874d44ee1f323cf2d65b46bdc51b0429d305d23bebaa4ebc4c","first_computed_at":"2026-07-05T05:02:56.052276Z","key_id":"pith-v1-2026-05","kind":"pith_receipt","last_reissued_at":"2026-07-05T05:02:56.052276Z","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54","receipt_version":"0.3","signature_b64":"QadyoaZTuFPSTfbbWsLYYj+pL8wWmhr/yoYEvcD0a2UccsHUY4UnU4kpoy2d9FN1o1jPhf+TyrUs1VwTofkvDg==","signature_status":"signed_v1","signed_at":"2026-07-05T05:02:56.052729Z","signed_message":"canonical_sha256_bytes"},"source_id":"2111.12039","source_kind":"arxiv","source_version":2}}},"equivocations":[],"invalid_events":[],"applied_event_ids":["sha256:28b5f94d17cbba1442ae1fcb478f4696201fc02e364ed4cef9f280b9931d12b2","sha256:f8558b73ad71964fcde914f9391b7708d7b099c8bfd4081d5932c56d219c065c"],"state_sha256":"8c6e92a528056e30a5a7a328288b8d18eeb62e8cb3530a4912a61fe36ebaa654"},"bundle_signature":{"signature_status":"signed_v1","algorithm":"ed25519","key_id":"pith-v1-2026-05","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54","signature_b64":"QLtcWR/mglTl36hfC1b7eKbzggLGtNwLNZYdIHdGT1/kXTrnYvBc4ypNMiu+lcchZWxGIkgAoqdZ0u9MjnVdDQ==","signed_message":"bundle_sha256_bytes","signed_at":"2026-08-23T13:27:48.888409Z","bundle_sha256":"c82a3a0d63d74b0de8189d2fb59917e48fc5dde92f3e49992ae60cc91771b475"}}