{"record_type":"pith_number_record","schema_url":"https://pith.science/schemas/pith-number/v1.json","pith_number":"pith:2011:M6SYPU6ZZCK75LLOQPMPXGIBVX","short_pith_number":"pith:M6SYPU6Z","schema_version":"1.0","canonical_sha256":"67a587d3d9c895fead6e83d8fb9901adf486bdf14c313e271931271c475f16db","source":{"kind":"arxiv","id":"1110.4184","version":3},"attestation_state":"computed","paper":{"title":"Statistical characterisation of bio-aerosol background in an urban environment","license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","headline":"","cross_cats":["nlin.CD"],"primary_cat":"physics.ao-ph","authors_text":"Alex Skvortsov, Milan Jamriska, Timothy C. DuBois","submitted_at":"2011-10-19T05:13:14Z","abstract_excerpt":"In this paper we statistically characterise the bio-aerosol background in an urban environment. To do this we measure concentration levels of naturally occurring microbiological material in the atmosphere over a two month period. Naturally occurring bioaerosols can be considered as noise, as they mask the presence of signals coming from biological material of interest (such as an intentionally released biological agent). Analysis of this 'biobackground' was undertaken in the 1-10 um size range and a 3-9% contribution was found to be biological in origin - values which are in good agreement wit"},"verification_status":{"content_addressed":true,"pith_receipt":true,"author_attested":false,"weak_author_claims":0,"strong_author_claims":0,"externally_anchored":false,"storage_verified":false,"citation_signatures":0,"replication_records":0,"graph_snapshot":true,"references_resolved":false,"formal_links_present":false},"canonical_record":{"source":{"id":"1110.4184","kind":"arxiv","version":3},"metadata":{"license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"physics.ao-ph","submitted_at":"2011-10-19T05:13:14Z","cross_cats_sorted":["nlin.CD"],"title_canon_sha256":"9308025b5399a24c10476a8593a6774dd29b4d60ac67c45d73d2ecf788abc044","abstract_canon_sha256":"4c080e9d5be10cfc29e8fb6b9fb98f6c12f67a55c7ed1ebcbe9cb8c36d4f8123"},"schema_version":"1.0"},"receipt":{"kind":"pith_receipt","key_id":"pith-v1-2026-05","algorithm":"ed25519","signed_at":"2026-05-18T02:44:32.672061Z","signature_b64":"kz/bzJ0cAiSNOH2Rghgp8vYcfJ4jC+Mhw3eFkdEA3NIe+a5eaSEdoK08M30qWgY/Ec5ypS8bS5woYs0ZYdd4DQ==","signed_message":"canonical_sha256_bytes","builder_version":"pith-number-builder-2026-05-17-v1","receipt_version":"0.3","canonical_sha256":"67a587d3d9c895fead6e83d8fb9901adf486bdf14c313e271931271c475f16db","last_reissued_at":"2026-05-18T02:44:32.671619Z","signature_status":"signed_v1","first_computed_at":"2026-05-18T02:44:32.671619Z","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54"},"graph_snapshot":{"paper":{"title":"Statistical characterisation of bio-aerosol background in an urban environment","license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","headline":"","cross_cats":["nlin.CD"],"primary_cat":"physics.ao-ph","authors_text":"Alex Skvortsov, Milan Jamriska, Timothy C. DuBois","submitted_at":"2011-10-19T05:13:14Z","abstract_excerpt":"In this paper we statistically characterise the bio-aerosol background in an urban environment. To do this we measure concentration levels of naturally occurring microbiological material in the atmosphere over a two month period. Naturally occurring bioaerosols can be considered as noise, as they mask the presence of signals coming from biological material of interest (such as an intentionally released biological agent). Analysis of this 'biobackground' was undertaken in the 1-10 um size range and a 3-9% contribution was found to be biological in origin - values which are in good agreement wit"},"claims":{"count":0,"items":[],"snapshot_sha256":"258153158e38e3291e3d48162225fcdb2d5a3ed65a07baac614ab91432fd4f57"},"source":{"id":"1110.4184","kind":"arxiv","version":3},"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"},"aliases":[{"alias_kind":"arxiv","alias_value":"1110.4184","created_at":"2026-05-18T02:44:32.671685+00:00"},{"alias_kind":"arxiv_version","alias_value":"1110.4184v3","created_at":"2026-05-18T02:44:32.671685+00:00"},{"alias_kind":"doi","alias_value":"10.48550/arxiv.1110.4184","created_at":"2026-05-18T02:44:32.671685+00:00"},{"alias_kind":"pith_short_12","alias_value":"M6SYPU6ZZCK7","created_at":"2026-05-18T12:26:34.985390+00:00"},{"alias_kind":"pith_short_16","alias_value":"M6SYPU6ZZCK75LLO","created_at":"2026-05-18T12:26:34.985390+00:00"},{"alias_kind":"pith_short_8","alias_value":"M6SYPU6Z","created_at":"2026-05-18T12:26:34.985390+00:00"}],"events":[],"event_summary":{},"paper_claims":[],"inbound_citations":{"count":0,"internal_anchor_count":0,"sample":[]},"formal_canon":{"evidence_count":0,"sample":[],"anchors":[]},"links":{"html":"https://pith.science/pith/M6SYPU6ZZCK75LLOQPMPXGIBVX","json":"https://pith.science/pith/M6SYPU6ZZCK75LLOQPMPXGIBVX.json","graph_json":"https://pith.science/api/pith-number/M6SYPU6ZZCK75LLOQPMPXGIBVX/graph.json","events_json":"https://pith.science/api/pith-number/M6SYPU6ZZCK75LLOQPMPXGIBVX/events.json","paper":"https://pith.science/paper/M6SYPU6Z"},"agent_actions":{"view_html":"https://pith.science/pith/M6SYPU6ZZCK75LLOQPMPXGIBVX","download_json":"https://pith.science/pith/M6SYPU6ZZCK75LLOQPMPXGIBVX.json","view_paper":"https://pith.science/paper/M6SYPU6Z","resolve_alias":"https://pith.science/api/pith-number/resolve?arxiv=1110.4184&json=true","fetch_graph":"https://pith.science/api/pith-number/M6SYPU6ZZCK75LLOQPMPXGIBVX/graph.json","fetch_events":"https://pith.science/api/pith-number/M6SYPU6ZZCK75LLOQPMPXGIBVX/events.json","actions":{"anchor_timestamp":"https://pith.science/pith/M6SYPU6ZZCK75LLOQPMPXGIBVX/action/timestamp_anchor","attest_storage":"https://pith.science/pith/M6SYPU6ZZCK75LLOQPMPXGIBVX/action/storage_attestation","attest_author":"https://pith.science/pith/M6SYPU6ZZCK75LLOQPMPXGIBVX/action/author_attestation","sign_citation":"https://pith.science/pith/M6SYPU6ZZCK75LLOQPMPXGIBVX/action/citation_signature","submit_replication":"https://pith.science/pith/M6SYPU6ZZCK75LLOQPMPXGIBVX/action/replication_record"}},"created_at":"2026-05-18T02:44:32.671685+00:00","updated_at":"2026-05-18T02:44:32.671685+00:00"}