{"bundle_type":"pith_open_graph_bundle","bundle_version":"1.0","pith_number":"pith:2018:M5NLTI4WFN2LLNSRSX2CDCYU26","short_pith_number":"pith:M5NLTI4W","canonical_record":{"source":{"id":"1810.11143","kind":"arxiv","version":5},"metadata":{"license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"cs.HC","submitted_at":"2018-10-25T23:51:05Z","cross_cats_sorted":[],"title_canon_sha256":"f548782bb2eb138ba0c9043988f814c0b58cf76ce25132cef1daf530cfaa92e8","abstract_canon_sha256":"2e6dca023dd6d98ef9a733a242b5c7ce8c066099799a707e5f38985006d301df"},"schema_version":"1.0"},"canonical_sha256":"675ab9a3962b74b5b65195f4218b14d79794c10eacdc48512aa03d087d022d8f","source":{"kind":"arxiv","id":"1810.11143","version":5},"source_aliases":[{"alias_kind":"arxiv","alias_value":"1810.11143","created_at":"2026-07-05T01:15:21Z"},{"alias_kind":"arxiv_version","alias_value":"1810.11143v5","created_at":"2026-07-05T01:15:21Z"},{"alias_kind":"doi","alias_value":"10.48550/arxiv.1810.11143","created_at":"2026-07-05T01:15:21Z"},{"alias_kind":"pith_short_12","alias_value":"M5NLTI4WFN2L","created_at":"2026-07-05T01:15:21Z"},{"alias_kind":"pith_short_16","alias_value":"M5NLTI4WFN2LLNSR","created_at":"2026-07-05T01:15:21Z"},{"alias_kind":"pith_short_8","alias_value":"M5NLTI4W","created_at":"2026-07-05T01:15:21Z"}],"events":[{"event_type":"record_created","subject_pith_number":"pith:2018:M5NLTI4WFN2LLNSRSX2CDCYU26","target":"record","payload":{"canonical_record":{"source":{"id":"1810.11143","kind":"arxiv","version":5},"metadata":{"license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"cs.HC","submitted_at":"2018-10-25T23:51:05Z","cross_cats_sorted":[],"title_canon_sha256":"f548782bb2eb138ba0c9043988f814c0b58cf76ce25132cef1daf530cfaa92e8","abstract_canon_sha256":"2e6dca023dd6d98ef9a733a242b5c7ce8c066099799a707e5f38985006d301df"},"schema_version":"1.0"},"canonical_sha256":"675ab9a3962b74b5b65195f4218b14d79794c10eacdc48512aa03d087d022d8f","receipt":{"kind":"pith_receipt","key_id":"pith-v1-2026-05","algorithm":"ed25519","signed_at":"2026-07-05T01:15:21.081925Z","signature_b64":"YIJreulQjfcrRNkUE1QLvwG2k40QnrpId0iUAW28uEJ4f4gJYSEK4qtiW8HVF/Aki7ewpNfU5apaKOiHiMtMAQ==","signed_message":"canonical_sha256_bytes","builder_version":"pith-number-builder-2026-05-17-v1","receipt_version":"0.3","canonical_sha256":"675ab9a3962b74b5b65195f4218b14d79794c10eacdc48512aa03d087d022d8f","last_reissued_at":"2026-07-05T01:15:21.081463Z","signature_status":"signed_v1","first_computed_at":"2026-07-05T01:15:21.081463Z","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54"},"source_kind":"arxiv","source_id":"1810.11143","source_version":5,"attestation_state":"computed"},"signer":{"signer_id":"pith.science","signer_type":"pith_registry","key_id":"pith-v1-2026-05","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54"},"created_at":"2026-07-05T01:15:21Z","supersedes":[],"prev_event":null,"signature":{"signature_status":"signed_v1","algorithm":"ed25519","key_id":"pith-v1-2026-05","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54","signature_b64":"rrsigZV8uPlpChoG1gGg2sEln7kWfgbzSwHQPhHiKyjy4fW6PGiN+0pjkpotDSfHcN8fi2bsG9manbFlrKAaAQ==","signed_message":"open_graph_event_sha256_bytes","signed_at":"2026-08-06T09:17:51.632353Z"},"content_sha256":"65d708cb8d0be86a24a3df4ba8fb9ec61639ecdf7ba8f71f9c602c387501f781","schema_version":"1.0","event_id":"sha256:65d708cb8d0be86a24a3df4ba8fb9ec61639ecdf7ba8f71f9c602c387501f781"},{"event_type":"graph_snapshot","subject_pith_number":"pith:2018:M5NLTI4WFN2LLNSRSX2CDCYU26","target":"graph","payload":{"graph_snapshot":{"paper":{"title":"Smell Pittsburgh: Community-Empowered Mobile Smell Reporting System","license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","headline":"","cross_cats":[],"primary_cat":"cs.HC","authors_text":"Beatrice Dias, Illah Nourbakhsh, Jennifer Cross, Michael Tasota, Paul Dille, Randy Sargent, Ting-Hao 'Kenneth' Huang, Yen-Chia Hsu","submitted_at":"2018-10-25T23:51:05Z","abstract_excerpt":"Urban air pollution has been linked to various human health considerations, including cardiopulmonary diseases. Communities who suffer from poor air quality often rely on experts to identify pollution sources due to the lack of accessible tools. Taking this into account, we developed Smell Pittsburgh, a system that enables community members to report odors and track where these odors are frequently concentrated. All smell report data are publicly accessible online. These reports are also sent to the local health department and visualized on a map along with air quality data from monitoring sta"},"claims":{"count":0,"items":[],"snapshot_sha256":"258153158e38e3291e3d48162225fcdb2d5a3ed65a07baac614ab91432fd4f57"},"source":{"id":"1810.11143","kind":"arxiv","version":5},"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/1810.11143/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":"2026-07-05T01:15:21Z","supersedes":[],"prev_event":null,"signature":{"signature_status":"signed_v1","algorithm":"ed25519","key_id":"pith-v1-2026-05","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54","signature_b64":"qzCjYxBiv8TfIOHvcGlnEa1mHjpxWPE9992GK+8BiQQdf/9vcn/iMgXTByFluNwLCMUGfYT/MO8C38tiVHdoCw==","signed_message":"open_graph_event_sha256_bytes","signed_at":"2026-08-06T09:17:51.632969Z"},"content_sha256":"6a7e46e2a4838ed7cd50aa1c11d89fb6aa4657a5916e25f47d31432bed0db13f","schema_version":"1.0","event_id":"sha256:6a7e46e2a4838ed7cd50aa1c11d89fb6aa4657a5916e25f47d31432bed0db13f"}],"timestamp_proofs":[],"mirror_hints":[{"mirror_type":"https","name":"Pith Resolver","base_url":"https://pith.science","bundle_url":"https://pith.science/pith/M5NLTI4WFN2LLNSRSX2CDCYU26/bundle.json","state_url":"https://pith.science/pith/M5NLTI4WFN2LLNSRSX2CDCYU26/state.json","well_known_bundle_url":"https://pith.science/.well-known/pith/M5NLTI4WFN2LLNSRSX2CDCYU26/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":"2026-08-06T09:17:51Z","links":{"resolver":"https://pith.science/pith/M5NLTI4WFN2LLNSRSX2CDCYU26","bundle":"https://pith.science/pith/M5NLTI4WFN2LLNSRSX2CDCYU26/bundle.json","state":"https://pith.science/pith/M5NLTI4WFN2LLNSRSX2CDCYU26/state.json","well_known_bundle":"https://pith.science/.well-known/pith/M5NLTI4WFN2LLNSRSX2CDCYU26/bundle.json"},"state":{"state_type":"pith_open_graph_state","state_version":"1.0","pith_number":"pith:2018:M5NLTI4WFN2LLNSRSX2CDCYU26","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":"2e6dca023dd6d98ef9a733a242b5c7ce8c066099799a707e5f38985006d301df","cross_cats_sorted":[],"license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"cs.HC","submitted_at":"2018-10-25T23:51:05Z","title_canon_sha256":"f548782bb2eb138ba0c9043988f814c0b58cf76ce25132cef1daf530cfaa92e8"},"schema_version":"1.0","source":{"id":"1810.11143","kind":"arxiv","version":5}},"source_aliases":[{"alias_kind":"arxiv","alias_value":"1810.11143","created_at":"2026-07-05T01:15:21Z"},{"alias_kind":"arxiv_version","alias_value":"1810.11143v5","created_at":"2026-07-05T01:15:21Z"},{"alias_kind":"doi","alias_value":"10.48550/arxiv.1810.11143","created_at":"2026-07-05T01:15:21Z"},{"alias_kind":"pith_short_12","alias_value":"M5NLTI4WFN2L","created_at":"2026-07-05T01:15:21Z"},{"alias_kind":"pith_short_16","alias_value":"M5NLTI4WFN2LLNSR","created_at":"2026-07-05T01:15:21Z"},{"alias_kind":"pith_short_8","alias_value":"M5NLTI4W","created_at":"2026-07-05T01:15:21Z"}],"graph_snapshots":[{"event_id":"sha256:6a7e46e2a4838ed7cd50aa1c11d89fb6aa4657a5916e25f47d31432bed0db13f","target":"graph","created_at":"2026-07-05T01:15:21Z","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/1810.11143/integrity.json","findings":[],"snapshot_sha256":"c28c3603d3b5d939e8dc4c7e95fa8dfce3d595e45f758748cecf8e644a296938","summary":{"advisory":0,"by_detector":{},"critical":0,"informational":0}},"paper":{"abstract_excerpt":"Urban air pollution has been linked to various human health considerations, including cardiopulmonary diseases. Communities who suffer from poor air quality often rely on experts to identify pollution sources due to the lack of accessible tools. Taking this into account, we developed Smell Pittsburgh, a system that enables community members to report odors and track where these odors are frequently concentrated. All smell report data are publicly accessible online. These reports are also sent to the local health department and visualized on a map along with air quality data from monitoring sta","authors_text":"Beatrice Dias, Illah Nourbakhsh, Jennifer Cross, Michael Tasota, Paul Dille, Randy Sargent, Ting-Hao 'Kenneth' Huang, Yen-Chia Hsu","cross_cats":[],"headline":"","license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"cs.HC","submitted_at":"2018-10-25T23:51:05Z","title":"Smell Pittsburgh: Community-Empowered Mobile Smell Reporting System"},"references":{"count":0,"internal_anchors":0,"resolved_work":0,"sample":[],"snapshot_sha256":"258153158e38e3291e3d48162225fcdb2d5a3ed65a07baac614ab91432fd4f57"},"source":{"id":"1810.11143","kind":"arxiv","version":5},"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":"sha256:65d708cb8d0be86a24a3df4ba8fb9ec61639ecdf7ba8f71f9c602c387501f781","target":"record","created_at":"2026-07-05T01:15:21Z","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":"2e6dca023dd6d98ef9a733a242b5c7ce8c066099799a707e5f38985006d301df","cross_cats_sorted":[],"license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"cs.HC","submitted_at":"2018-10-25T23:51:05Z","title_canon_sha256":"f548782bb2eb138ba0c9043988f814c0b58cf76ce25132cef1daf530cfaa92e8"},"schema_version":"1.0","source":{"id":"1810.11143","kind":"arxiv","version":5}},"canonical_sha256":"675ab9a3962b74b5b65195f4218b14d79794c10eacdc48512aa03d087d022d8f","receipt":{"algorithm":"ed25519","builder_version":"pith-number-builder-2026-05-17-v1","canonical_sha256":"675ab9a3962b74b5b65195f4218b14d79794c10eacdc48512aa03d087d022d8f","first_computed_at":"2026-07-05T01:15:21.081463Z","key_id":"pith-v1-2026-05","kind":"pith_receipt","last_reissued_at":"2026-07-05T01:15:21.081463Z","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54","receipt_version":"0.3","signature_b64":"YIJreulQjfcrRNkUE1QLvwG2k40QnrpId0iUAW28uEJ4f4gJYSEK4qtiW8HVF/Aki7ewpNfU5apaKOiHiMtMAQ==","signature_status":"signed_v1","signed_at":"2026-07-05T01:15:21.081925Z","signed_message":"canonical_sha256_bytes"},"source_id":"1810.11143","source_kind":"arxiv","source_version":5}}},"equivocations":[],"invalid_events":[],"applied_event_ids":["sha256:65d708cb8d0be86a24a3df4ba8fb9ec61639ecdf7ba8f71f9c602c387501f781","sha256:6a7e46e2a4838ed7cd50aa1c11d89fb6aa4657a5916e25f47d31432bed0db13f"],"state_sha256":"b03c9267540e4e705c7b0a40bf89e8ffa847b611c81940a0c2fbc96c791d5c36"},"bundle_signature":{"signature_status":"signed_v1","algorithm":"ed25519","key_id":"pith-v1-2026-05","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54","signature_b64":"fH0+7b0u75H5Sf0m3dzaanPpkF1fpn0p4QrJCO1LTG+smkJIEgkc+puhinPJ8jQXFFJrSglNHaXjdsayaH1fBw==","signed_message":"bundle_sha256_bytes","signed_at":"2026-08-06T09:17:51.638604Z","bundle_sha256":"ed6df0908ee7bb74e4aa180ffdbb0fbc807f0b34476811c64593a6a0a4a33674"}}