{"bundle_type":"pith_open_graph_bundle","bundle_version":"1.0","pith_number":"pith:2018:5MSGOYDXHEXVJKRPYBUSLMIKK7","short_pith_number":"pith:5MSGOYDX","canonical_record":{"source":{"id":"1812.00512","kind":"arxiv","version":3},"metadata":{"license":"http://creativecommons.org/licenses/by-nc-sa/4.0/","primary_cat":"physics.ao-ph","submitted_at":"2018-11-29T13:14:57Z","cross_cats_sorted":["physics.flu-dyn"],"title_canon_sha256":"9b574d60c90f920f7c98d995d1777a7a3be4fbaee49f2b26e893ef6fc2a6a3b8","abstract_canon_sha256":"89f6fbe780cd0f8b1bcabebd5835c21f6e2fc3e24eda0d1b5957132660541074"},"schema_version":"1.0"},"canonical_sha256":"eb24676077392f54aa2fc06925b10a57f5de54d8f775458f37b04cdc58ffc5d6","source":{"kind":"arxiv","id":"1812.00512","version":3},"source_aliases":[{"alias_kind":"arxiv","alias_value":"1812.00512","created_at":"2026-05-17T23:48:39Z"},{"alias_kind":"arxiv_version","alias_value":"1812.00512v3","created_at":"2026-05-17T23:48:39Z"},{"alias_kind":"doi","alias_value":"10.48550/arxiv.1812.00512","created_at":"2026-05-17T23:48:39Z"},{"alias_kind":"pith_short_12","alias_value":"5MSGOYDXHEXV","created_at":"2026-05-18T12:32:08Z"},{"alias_kind":"pith_short_16","alias_value":"5MSGOYDXHEXVJKRP","created_at":"2026-05-18T12:32:08Z"},{"alias_kind":"pith_short_8","alias_value":"5MSGOYDX","created_at":"2026-05-18T12:32:08Z"}],"events":[{"event_type":"record_created","subject_pith_number":"pith:2018:5MSGOYDXHEXVJKRPYBUSLMIKK7","target":"record","payload":{"canonical_record":{"source":{"id":"1812.00512","kind":"arxiv","version":3},"metadata":{"license":"http://creativecommons.org/licenses/by-nc-sa/4.0/","primary_cat":"physics.ao-ph","submitted_at":"2018-11-29T13:14:57Z","cross_cats_sorted":["physics.flu-dyn"],"title_canon_sha256":"9b574d60c90f920f7c98d995d1777a7a3be4fbaee49f2b26e893ef6fc2a6a3b8","abstract_canon_sha256":"89f6fbe780cd0f8b1bcabebd5835c21f6e2fc3e24eda0d1b5957132660541074"},"schema_version":"1.0"},"canonical_sha256":"eb24676077392f54aa2fc06925b10a57f5de54d8f775458f37b04cdc58ffc5d6","receipt":{"kind":"pith_receipt","key_id":"pith-v1-2026-05","algorithm":"ed25519","signed_at":"2026-05-17T23:48:39.771267Z","signature_b64":"bfh9/DmF8tYGTk4jQZKAECAlMeR8fTBgb4WHGpBMtwFtCdmGr2Hjgx8msdVbZgJoidPCECiL9Q2K9qmqmvCgBg==","signed_message":"canonical_sha256_bytes","builder_version":"pith-number-builder-2026-05-17-v1","receipt_version":"0.3","canonical_sha256":"eb24676077392f54aa2fc06925b10a57f5de54d8f775458f37b04cdc58ffc5d6","last_reissued_at":"2026-05-17T23:48:39.770672Z","signature_status":"signed_v1","first_computed_at":"2026-05-17T23:48:39.770672Z","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54"},"source_kind":"arxiv","source_id":"1812.00512","source_version":3,"attestation_state":"computed"},"signer":{"signer_id":"pith.science","signer_type":"pith_registry","key_id":"pith-v1-2026-05","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54"},"created_at":"2026-05-17T23:48:39Z","supersedes":[],"prev_event":null,"signature":{"signature_status":"signed_v1","algorithm":"ed25519","key_id":"pith-v1-2026-05","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54","signature_b64":"TMhgW8PZHjPvDqrIH5fTAA2Gzp2n/fINgHbBSMTr4fZ27suvAkVNeF3ZQlDOxxPPERhil4XKhOR6mbttvM9WDw==","signed_message":"open_graph_event_sha256_bytes","signed_at":"2026-08-16T14:44:59.736668Z"},"content_sha256":"95fc323e98ab00e26c3f4c57e104d6dcc69558680747a9c0918791937c60381b","schema_version":"1.0","event_id":"sha256:95fc323e98ab00e26c3f4c57e104d6dcc69558680747a9c0918791937c60381b"},{"event_type":"graph_snapshot","subject_pith_number":"pith:2018:5MSGOYDXHEXVJKRPYBUSLMIKK7","target":"graph","payload":{"graph_snapshot":{"paper":{"title":"Effect of local and upwind stratification on flow and dispersion inside and above a bi-dimensional street canyon","license":"http://creativecommons.org/licenses/by-nc-sa/4.0/","headline":"","cross_cats":["physics.flu-dyn"],"primary_cat":"physics.ao-ph","authors_text":"Davide Marucci, Matteo Carpentieri","submitted_at":"2018-11-29T13:14:57Z","abstract_excerpt":"The effects of a stably-stratified boundary layer on flow and dispersion in a bi-dimensional street canyon have been investigated experimentally in a wind tunnel in combination with differential wall heating. Laser-Doppler anemometry together with a fast flame ionisation detector and cold-wire anemometry were employed to sample velocities, concentration, temperatures and fluxes.\n  A single-vortex pattern was observed in the isothermal case, preserved also in the leeward case, but with an increment of the vortex speed. Heating the windward wall was found to generate a counter-rotating vortex, r"},"claims":{"count":0,"items":[],"snapshot_sha256":"258153158e38e3291e3d48162225fcdb2d5a3ed65a07baac614ab91432fd4f57"},"source":{"id":"1812.00512","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"},"verdict_id":null},"signer":{"signer_id":"pith.science","signer_type":"pith_registry","key_id":"pith-v1-2026-05","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54"},"created_at":"2026-05-17T23:48:39Z","supersedes":[],"prev_event":null,"signature":{"signature_status":"signed_v1","algorithm":"ed25519","key_id":"pith-v1-2026-05","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54","signature_b64":"7PXZ1KwShJlaeOr7EJ/wCIJlWeLFeLpgqIm1PrdDD1kqqFC5v94umR38pS7R03EpVZ+VK64nCWE9Bt23o4m9BQ==","signed_message":"open_graph_event_sha256_bytes","signed_at":"2026-08-16T14:44:59.737220Z"},"content_sha256":"e2fbbd7962bd9112afd6776cc374e056cc8eaae418f3979f1f1d059951be58f0","schema_version":"1.0","event_id":"sha256:e2fbbd7962bd9112afd6776cc374e056cc8eaae418f3979f1f1d059951be58f0"}],"timestamp_proofs":[],"mirror_hints":[{"mirror_type":"https","name":"Pith Resolver","base_url":"https://pith.science","bundle_url":"https://pith.science/pith/5MSGOYDXHEXVJKRPYBUSLMIKK7/bundle.json","state_url":"https://pith.science/pith/5MSGOYDXHEXVJKRPYBUSLMIKK7/state.json","well_known_bundle_url":"https://pith.science/.well-known/pith/5MSGOYDXHEXVJKRPYBUSLMIKK7/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":"2026-08-16T14:44:59Z","links":{"resolver":"https://pith.science/pith/5MSGOYDXHEXVJKRPYBUSLMIKK7","bundle":"https://pith.science/pith/5MSGOYDXHEXVJKRPYBUSLMIKK7/bundle.json","state":"https://pith.science/pith/5MSGOYDXHEXVJKRPYBUSLMIKK7/state.json","well_known_bundle":"https://pith.science/.well-known/pith/5MSGOYDXHEXVJKRPYBUSLMIKK7/bundle.json"},"state":{"state_type":"pith_open_graph_state","state_version":"1.0","pith_number":"pith:2018:5MSGOYDXHEXVJKRPYBUSLMIKK7","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":"89f6fbe780cd0f8b1bcabebd5835c21f6e2fc3e24eda0d1b5957132660541074","cross_cats_sorted":["physics.flu-dyn"],"license":"http://creativecommons.org/licenses/by-nc-sa/4.0/","primary_cat":"physics.ao-ph","submitted_at":"2018-11-29T13:14:57Z","title_canon_sha256":"9b574d60c90f920f7c98d995d1777a7a3be4fbaee49f2b26e893ef6fc2a6a3b8"},"schema_version":"1.0","source":{"id":"1812.00512","kind":"arxiv","version":3}},"source_aliases":[{"alias_kind":"arxiv","alias_value":"1812.00512","created_at":"2026-05-17T23:48:39Z"},{"alias_kind":"arxiv_version","alias_value":"1812.00512v3","created_at":"2026-05-17T23:48:39Z"},{"alias_kind":"doi","alias_value":"10.48550/arxiv.1812.00512","created_at":"2026-05-17T23:48:39Z"},{"alias_kind":"pith_short_12","alias_value":"5MSGOYDXHEXV","created_at":"2026-05-18T12:32:08Z"},{"alias_kind":"pith_short_16","alias_value":"5MSGOYDXHEXVJKRP","created_at":"2026-05-18T12:32:08Z"},{"alias_kind":"pith_short_8","alias_value":"5MSGOYDX","created_at":"2026-05-18T12:32:08Z"}],"graph_snapshots":[{"event_id":"sha256:e2fbbd7962bd9112afd6776cc374e056cc8eaae418f3979f1f1d059951be58f0","target":"graph","created_at":"2026-05-17T23:48:39Z","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 effects of a stably-stratified boundary layer on flow and dispersion in a bi-dimensional street canyon have been investigated experimentally in a wind tunnel in combination with differential wall heating. Laser-Doppler anemometry together with a fast flame ionisation detector and cold-wire anemometry were employed to sample velocities, concentration, temperatures and fluxes.\n  A single-vortex pattern was observed in the isothermal case, preserved also in the leeward case, but with an increment of the vortex speed. Heating the windward wall was found to generate a counter-rotating vortex, r","authors_text":"Davide Marucci, Matteo Carpentieri","cross_cats":["physics.flu-dyn"],"headline":"","license":"http://creativecommons.org/licenses/by-nc-sa/4.0/","primary_cat":"physics.ao-ph","submitted_at":"2018-11-29T13:14:57Z","title":"Effect of local and upwind stratification on flow and dispersion inside and above a bi-dimensional street canyon"},"references":{"count":0,"internal_anchors":0,"resolved_work":0,"sample":[],"snapshot_sha256":"258153158e38e3291e3d48162225fcdb2d5a3ed65a07baac614ab91432fd4f57"},"source":{"id":"1812.00512","kind":"arxiv","version":3},"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":"sha256:95fc323e98ab00e26c3f4c57e104d6dcc69558680747a9c0918791937c60381b","target":"record","created_at":"2026-05-17T23:48:39Z","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":"89f6fbe780cd0f8b1bcabebd5835c21f6e2fc3e24eda0d1b5957132660541074","cross_cats_sorted":["physics.flu-dyn"],"license":"http://creativecommons.org/licenses/by-nc-sa/4.0/","primary_cat":"physics.ao-ph","submitted_at":"2018-11-29T13:14:57Z","title_canon_sha256":"9b574d60c90f920f7c98d995d1777a7a3be4fbaee49f2b26e893ef6fc2a6a3b8"},"schema_version":"1.0","source":{"id":"1812.00512","kind":"arxiv","version":3}},"canonical_sha256":"eb24676077392f54aa2fc06925b10a57f5de54d8f775458f37b04cdc58ffc5d6","receipt":{"algorithm":"ed25519","builder_version":"pith-number-builder-2026-05-17-v1","canonical_sha256":"eb24676077392f54aa2fc06925b10a57f5de54d8f775458f37b04cdc58ffc5d6","first_computed_at":"2026-05-17T23:48:39.770672Z","key_id":"pith-v1-2026-05","kind":"pith_receipt","last_reissued_at":"2026-05-17T23:48:39.770672Z","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54","receipt_version":"0.3","signature_b64":"bfh9/DmF8tYGTk4jQZKAECAlMeR8fTBgb4WHGpBMtwFtCdmGr2Hjgx8msdVbZgJoidPCECiL9Q2K9qmqmvCgBg==","signature_status":"signed_v1","signed_at":"2026-05-17T23:48:39.771267Z","signed_message":"canonical_sha256_bytes"},"source_id":"1812.00512","source_kind":"arxiv","source_version":3}}},"equivocations":[],"invalid_events":[],"applied_event_ids":["sha256:95fc323e98ab00e26c3f4c57e104d6dcc69558680747a9c0918791937c60381b","sha256:e2fbbd7962bd9112afd6776cc374e056cc8eaae418f3979f1f1d059951be58f0"],"state_sha256":"369ff29c2863366bcd75dbdcd7c7a000fe8d2bf1bc4566f5010e13bd31304a27"},"bundle_signature":{"signature_status":"signed_v1","algorithm":"ed25519","key_id":"pith-v1-2026-05","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54","signature_b64":"dAC8cN9aeCkRsvBGJKVl4+m5Nq8lG/9Phi/HtjBqW+p3e3UhNOhsR9nF8A3HfdZnEbK9wwvt3rK8fJMFjTcsAA==","signed_message":"bundle_sha256_bytes","signed_at":"2026-08-16T14:44:59.740612Z","bundle_sha256":"17cf4cb9e93ee7f5883a97c1661090df67041d127e40ecd2c7cfd5504077a71d"}}