{"bundle_type":"pith_open_graph_bundle","bundle_version":"1.0","pith_number":"pith:2020:DPIH7AOUKDBTQXS3MDUB7GFUZX","short_pith_number":"pith:DPIH7AOU","canonical_record":{"source":{"id":"2007.07817","kind":"arxiv","version":1},"metadata":{"license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"cs.CV","submitted_at":"2020-07-15T16:43:37Z","cross_cats_sorted":["cs.DB","cs.MM","eess.IV"],"title_canon_sha256":"61b1f6cf1d6973ed6e7db0b1c9bac5af13661d686947582e4cacf920d00d4a3d","abstract_canon_sha256":"1863cdac36c8ff8f7f622ccfb291f39cc53a51302e5ea26c6bf1024a16943546"},"schema_version":"1.0"},"canonical_sha256":"1bd07f81d450c3385e5b60e81f98b4cdd1aa82c3abba98d597d6c51af1cc4863","source":{"kind":"arxiv","id":"2007.07817","version":1},"source_aliases":[{"alias_kind":"arxiv","alias_value":"2007.07817","created_at":"2026-07-05T01:19:32Z"},{"alias_kind":"arxiv_version","alias_value":"2007.07817v1","created_at":"2026-07-05T01:19:32Z"},{"alias_kind":"doi","alias_value":"10.48550/arxiv.2007.07817","created_at":"2026-07-05T01:19:32Z"},{"alias_kind":"pith_short_12","alias_value":"DPIH7AOUKDBT","created_at":"2026-07-05T01:19:32Z"},{"alias_kind":"pith_short_16","alias_value":"DPIH7AOUKDBTQXS3","created_at":"2026-07-05T01:19:32Z"},{"alias_kind":"pith_short_8","alias_value":"DPIH7AOU","created_at":"2026-07-05T01:19:32Z"}],"events":[{"event_type":"record_created","subject_pith_number":"pith:2020:DPIH7AOUKDBTQXS3MDUB7GFUZX","target":"record","payload":{"canonical_record":{"source":{"id":"2007.07817","kind":"arxiv","version":1},"metadata":{"license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"cs.CV","submitted_at":"2020-07-15T16:43:37Z","cross_cats_sorted":["cs.DB","cs.MM","eess.IV"],"title_canon_sha256":"61b1f6cf1d6973ed6e7db0b1c9bac5af13661d686947582e4cacf920d00d4a3d","abstract_canon_sha256":"1863cdac36c8ff8f7f622ccfb291f39cc53a51302e5ea26c6bf1024a16943546"},"schema_version":"1.0"},"canonical_sha256":"1bd07f81d450c3385e5b60e81f98b4cdd1aa82c3abba98d597d6c51af1cc4863","receipt":{"kind":"pith_receipt","key_id":"pith-v1-2026-05","algorithm":"ed25519","signed_at":"2026-07-05T01:19:32.325590Z","signature_b64":"p/66FKQNuYwn0jCOrvpY4KhmX84Cu3tbeAs3ZtJtY7FeMiSvNxS0M97ZGP/av5nEzpNbKlhlCmyLhfaWdrcJAw==","signed_message":"canonical_sha256_bytes","builder_version":"pith-number-builder-2026-05-17-v1","receipt_version":"0.3","canonical_sha256":"1bd07f81d450c3385e5b60e81f98b4cdd1aa82c3abba98d597d6c51af1cc4863","last_reissued_at":"2026-07-05T01:19:32.325181Z","signature_status":"signed_v1","first_computed_at":"2026-07-05T01:19:32.325181Z","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54"},"source_kind":"arxiv","source_id":"2007.07817","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":"2026-07-05T01:19:32Z","supersedes":[],"prev_event":null,"signature":{"signature_status":"signed_v1","algorithm":"ed25519","key_id":"pith-v1-2026-05","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54","signature_b64":"J9cwm7HBkezehOTREOuTTmj+JreqUhshOaw6zVZ/3LMCxV2v856N20DWhYDNeFS1u/dqN3CxfZkQ1i7/371oBA==","signed_message":"open_graph_event_sha256_bytes","signed_at":"2026-07-11T16:02:35.928421Z"},"content_sha256":"c634f52dde93d04d09cd5768eba7e0e3823fc2c9ebc5067d908178b1dc4a8366","schema_version":"1.0","event_id":"sha256:c634f52dde93d04d09cd5768eba7e0e3823fc2c9ebc5067d908178b1dc4a8366"},{"event_type":"graph_snapshot","subject_pith_number":"pith:2020:DPIH7AOUKDBTQXS3MDUB7GFUZX","target":"graph","payload":{"graph_snapshot":{"paper":{"title":"VidCEP: Complex Event Processing Framework to Detect Spatiotemporal Patterns in Video Streams","license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","headline":"","cross_cats":["cs.DB","cs.MM","eess.IV"],"primary_cat":"cs.CV","authors_text":"Edward Curry, Piyush Yadav","submitted_at":"2020-07-15T16:43:37Z","abstract_excerpt":"Video data is highly expressive and has traditionally been very difficult for a machine to interpret. Querying event patterns from video streams is challenging due to its unstructured representation. Middleware systems such as Complex Event Processing (CEP) mine patterns from data streams and send notifications to users in a timely fashion. Current CEP systems have inherent limitations to query video streams due to their unstructured data model and lack of expressive query language. In this work, we focus on a CEP framework where users can define high-level expressive queries over videos to de"},"claims":{"count":0,"items":[],"snapshot_sha256":"258153158e38e3291e3d48162225fcdb2d5a3ed65a07baac614ab91432fd4f57"},"source":{"id":"2007.07817","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/2007.07817/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":"2026-07-05T01:19:32Z","supersedes":[],"prev_event":null,"signature":{"signature_status":"signed_v1","algorithm":"ed25519","key_id":"pith-v1-2026-05","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54","signature_b64":"niOts+mlmhd2jS5SgBBpDKGQSqfVGAKcaV3znZ0iMypYW53WSUq9wgnV6la0CngEWjoJspozi8zGl8h3xI4/Cg==","signed_message":"open_graph_event_sha256_bytes","signed_at":"2026-07-11T16:02:35.928800Z"},"content_sha256":"fec096942f060b9fbcf82030a55c570de3a811a036ad50d873ad47faf0b152bf","schema_version":"1.0","event_id":"sha256:fec096942f060b9fbcf82030a55c570de3a811a036ad50d873ad47faf0b152bf"}],"timestamp_proofs":[],"mirror_hints":[{"mirror_type":"https","name":"Pith Resolver","base_url":"https://pith.science","bundle_url":"https://pith.science/pith/DPIH7AOUKDBTQXS3MDUB7GFUZX/bundle.json","state_url":"https://pith.science/pith/DPIH7AOUKDBTQXS3MDUB7GFUZX/state.json","well_known_bundle_url":"https://pith.science/.well-known/pith/DPIH7AOUKDBTQXS3MDUB7GFUZX/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":"2026-07-11T16:02:35Z","links":{"resolver":"https://pith.science/pith/DPIH7AOUKDBTQXS3MDUB7GFUZX","bundle":"https://pith.science/pith/DPIH7AOUKDBTQXS3MDUB7GFUZX/bundle.json","state":"https://pith.science/pith/DPIH7AOUKDBTQXS3MDUB7GFUZX/state.json","well_known_bundle":"https://pith.science/.well-known/pith/DPIH7AOUKDBTQXS3MDUB7GFUZX/bundle.json"},"state":{"state_type":"pith_open_graph_state","state_version":"1.0","pith_number":"pith:2020:DPIH7AOUKDBTQXS3MDUB7GFUZX","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":"1863cdac36c8ff8f7f622ccfb291f39cc53a51302e5ea26c6bf1024a16943546","cross_cats_sorted":["cs.DB","cs.MM","eess.IV"],"license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"cs.CV","submitted_at":"2020-07-15T16:43:37Z","title_canon_sha256":"61b1f6cf1d6973ed6e7db0b1c9bac5af13661d686947582e4cacf920d00d4a3d"},"schema_version":"1.0","source":{"id":"2007.07817","kind":"arxiv","version":1}},"source_aliases":[{"alias_kind":"arxiv","alias_value":"2007.07817","created_at":"2026-07-05T01:19:32Z"},{"alias_kind":"arxiv_version","alias_value":"2007.07817v1","created_at":"2026-07-05T01:19:32Z"},{"alias_kind":"doi","alias_value":"10.48550/arxiv.2007.07817","created_at":"2026-07-05T01:19:32Z"},{"alias_kind":"pith_short_12","alias_value":"DPIH7AOUKDBT","created_at":"2026-07-05T01:19:32Z"},{"alias_kind":"pith_short_16","alias_value":"DPIH7AOUKDBTQXS3","created_at":"2026-07-05T01:19:32Z"},{"alias_kind":"pith_short_8","alias_value":"DPIH7AOU","created_at":"2026-07-05T01:19:32Z"}],"graph_snapshots":[{"event_id":"sha256:fec096942f060b9fbcf82030a55c570de3a811a036ad50d873ad47faf0b152bf","target":"graph","created_at":"2026-07-05T01:19:32Z","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/2007.07817/integrity.json","findings":[],"snapshot_sha256":"c28c3603d3b5d939e8dc4c7e95fa8dfce3d595e45f758748cecf8e644a296938","summary":{"advisory":0,"by_detector":{},"critical":0,"informational":0}},"paper":{"abstract_excerpt":"Video data is highly expressive and has traditionally been very difficult for a machine to interpret. Querying event patterns from video streams is challenging due to its unstructured representation. Middleware systems such as Complex Event Processing (CEP) mine patterns from data streams and send notifications to users in a timely fashion. Current CEP systems have inherent limitations to query video streams due to their unstructured data model and lack of expressive query language. In this work, we focus on a CEP framework where users can define high-level expressive queries over videos to de","authors_text":"Edward Curry, Piyush Yadav","cross_cats":["cs.DB","cs.MM","eess.IV"],"headline":"","license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"cs.CV","submitted_at":"2020-07-15T16:43:37Z","title":"VidCEP: Complex Event Processing Framework to Detect Spatiotemporal Patterns in Video Streams"},"references":{"count":0,"internal_anchors":0,"resolved_work":0,"sample":[],"snapshot_sha256":"258153158e38e3291e3d48162225fcdb2d5a3ed65a07baac614ab91432fd4f57"},"source":{"id":"2007.07817","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:c634f52dde93d04d09cd5768eba7e0e3823fc2c9ebc5067d908178b1dc4a8366","target":"record","created_at":"2026-07-05T01:19:32Z","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":"1863cdac36c8ff8f7f622ccfb291f39cc53a51302e5ea26c6bf1024a16943546","cross_cats_sorted":["cs.DB","cs.MM","eess.IV"],"license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"cs.CV","submitted_at":"2020-07-15T16:43:37Z","title_canon_sha256":"61b1f6cf1d6973ed6e7db0b1c9bac5af13661d686947582e4cacf920d00d4a3d"},"schema_version":"1.0","source":{"id":"2007.07817","kind":"arxiv","version":1}},"canonical_sha256":"1bd07f81d450c3385e5b60e81f98b4cdd1aa82c3abba98d597d6c51af1cc4863","receipt":{"algorithm":"ed25519","builder_version":"pith-number-builder-2026-05-17-v1","canonical_sha256":"1bd07f81d450c3385e5b60e81f98b4cdd1aa82c3abba98d597d6c51af1cc4863","first_computed_at":"2026-07-05T01:19:32.325181Z","key_id":"pith-v1-2026-05","kind":"pith_receipt","last_reissued_at":"2026-07-05T01:19:32.325181Z","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54","receipt_version":"0.3","signature_b64":"p/66FKQNuYwn0jCOrvpY4KhmX84Cu3tbeAs3ZtJtY7FeMiSvNxS0M97ZGP/av5nEzpNbKlhlCmyLhfaWdrcJAw==","signature_status":"signed_v1","signed_at":"2026-07-05T01:19:32.325590Z","signed_message":"canonical_sha256_bytes"},"source_id":"2007.07817","source_kind":"arxiv","source_version":1}}},"equivocations":[],"invalid_events":[],"applied_event_ids":["sha256:c634f52dde93d04d09cd5768eba7e0e3823fc2c9ebc5067d908178b1dc4a8366","sha256:fec096942f060b9fbcf82030a55c570de3a811a036ad50d873ad47faf0b152bf"],"state_sha256":"1b79c4e3091b92da639399584f7e05b9605dc166fd9470ff38db472dafb25922"},"bundle_signature":{"signature_status":"signed_v1","algorithm":"ed25519","key_id":"pith-v1-2026-05","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54","signature_b64":"lBtdR89tNVmQsTZUtEZkIuiXRWQJTQq35DJlW+MFpx/8WP8YeYDiIGtO/1SK3TXHoLIVRVFesUUaGd8iT/YuCA==","signed_message":"bundle_sha256_bytes","signed_at":"2026-07-11T16:02:35.931024Z","bundle_sha256":"e62301ca31f7409450bc3386ff3e466cc8a6813bd4387ed0295ed079f1aefbd4"}}