{"bundle_type":"pith_open_graph_bundle","bundle_version":"1.0","pith_number":"pith:2018:D2WIEVGLCQVTMA7GJQBIZFZQEW","short_pith_number":"pith:D2WIEVGL","canonical_record":{"source":{"id":"1803.03716","kind":"arxiv","version":1},"metadata":{"license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"cs.DB","submitted_at":"2018-03-09T23:07:09Z","cross_cats_sorted":[],"title_canon_sha256":"f2c1e8a1867c908dd2d3a577a151eb7b11f8fc605213a9d9a36e1f03b0f6c22a","abstract_canon_sha256":"47f2e41a32768f17cc8da5722243b1af2d55464c7dcad91cbd721157bb3fb6f3"},"schema_version":"1.0"},"canonical_sha256":"1eac8254cb142b3603e64c028c973025b159dcb6f1133582f1734b7d5f5f25db","source":{"kind":"arxiv","id":"1803.03716","version":1},"source_aliases":[{"alias_kind":"arxiv","alias_value":"1803.03716","created_at":"2026-05-17T23:58:05Z"},{"alias_kind":"arxiv_version","alias_value":"1803.03716v1","created_at":"2026-05-17T23:58:05Z"},{"alias_kind":"doi","alias_value":"10.48550/arxiv.1803.03716","created_at":"2026-05-17T23:58:05Z"},{"alias_kind":"pith_short_12","alias_value":"D2WIEVGLCQVT","created_at":"2026-05-18T12:32:19Z"},{"alias_kind":"pith_short_16","alias_value":"D2WIEVGLCQVTMA7G","created_at":"2026-05-18T12:32:19Z"},{"alias_kind":"pith_short_8","alias_value":"D2WIEVGL","created_at":"2026-05-18T12:32:19Z"}],"events":[{"event_type":"record_created","subject_pith_number":"pith:2018:D2WIEVGLCQVTMA7GJQBIZFZQEW","target":"record","payload":{"canonical_record":{"source":{"id":"1803.03716","kind":"arxiv","version":1},"metadata":{"license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"cs.DB","submitted_at":"2018-03-09T23:07:09Z","cross_cats_sorted":[],"title_canon_sha256":"f2c1e8a1867c908dd2d3a577a151eb7b11f8fc605213a9d9a36e1f03b0f6c22a","abstract_canon_sha256":"47f2e41a32768f17cc8da5722243b1af2d55464c7dcad91cbd721157bb3fb6f3"},"schema_version":"1.0"},"canonical_sha256":"1eac8254cb142b3603e64c028c973025b159dcb6f1133582f1734b7d5f5f25db","receipt":{"kind":"pith_receipt","key_id":"pith-v1-2026-05","algorithm":"ed25519","signed_at":"2026-05-17T23:58:05.129802Z","signature_b64":"2gxu0MYzQw4jEfFX9PTsPx61lBWjl7wP+ls54Qress4hQ/mPDjioBfA7x5qnquS3WfjWkcUxV3kSxMBgaAuKAQ==","signed_message":"canonical_sha256_bytes","builder_version":"pith-number-builder-2026-05-17-v1","receipt_version":"0.3","canonical_sha256":"1eac8254cb142b3603e64c028c973025b159dcb6f1133582f1734b7d5f5f25db","last_reissued_at":"2026-05-17T23:58:05.129458Z","signature_status":"signed_v1","first_computed_at":"2026-05-17T23:58:05.129458Z","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54"},"source_kind":"arxiv","source_id":"1803.03716","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":"2026-05-17T23:58:05Z","supersedes":[],"prev_event":null,"signature":{"signature_status":"signed_v1","algorithm":"ed25519","key_id":"pith-v1-2026-05","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54","signature_b64":"aRraOuGVG6CK5FMPTH0O/YgKJ1Y/wO7vNdvnFBaOnqHe2JzBcJ8Kktun5Cq1W00yZVnC5XhJptjau+6nYLPmCw==","signed_message":"open_graph_event_sha256_bytes","signed_at":"2026-06-08T19:06:21.181584Z"},"content_sha256":"93aedb14905cc4301fed8d0d6a8eb31345e47d4b5e2e253adfc90c70b08ad691","schema_version":"1.0","event_id":"sha256:93aedb14905cc4301fed8d0d6a8eb31345e47d4b5e2e253adfc90c70b08ad691"},{"event_type":"graph_snapshot","subject_pith_number":"pith:2018:D2WIEVGLCQVTMA7GJQBIZFZQEW","target":"graph","payload":{"graph_snapshot":{"paper":{"title":"TRAJEDI: Trajectory Dissimilarity","license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","headline":"","cross_cats":[],"primary_cat":"cs.DB","authors_text":"Kenrick Fernande, Pedram Gharani, Vineet Raghu","submitted_at":"2018-03-09T23:07:09Z","abstract_excerpt":"The vast increase in our ability to obtain and store trajectory data necessitates trajectory analytics techniques to extract useful information from this data. Pair-wise distance functions are a foundation building block for common operations on trajectory datasets including constrained SELECT queries, k-nearest neighbors, and similarity and diversity algorithms. The accuracy and performance of these operations depend heavily on the speed and accuracy of the underlying trajectory distance function, which is in turn affected by trajectory calibration. Current methods either require calibrated d"},"claims":{"count":0,"items":[],"snapshot_sha256":"258153158e38e3291e3d48162225fcdb2d5a3ed65a07baac614ab91432fd4f57"},"source":{"id":"1803.03716","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":""},"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":"2026-05-17T23:58:05Z","supersedes":[],"prev_event":null,"signature":{"signature_status":"signed_v1","algorithm":"ed25519","key_id":"pith-v1-2026-05","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54","signature_b64":"ThEddnNXdvHTg3KqLVYCFUd2L6lnsUZnJmeFmdSplzXsrAsqhKsOn76KHRPxRy4VGeRl/7qoMD0AjiGgX03KBA==","signed_message":"open_graph_event_sha256_bytes","signed_at":"2026-06-08T19:06:21.181925Z"},"content_sha256":"1071ba2a418cb8f217801f98b90087a7a6dc1fef340f6935143d50635798a099","schema_version":"1.0","event_id":"sha256:1071ba2a418cb8f217801f98b90087a7a6dc1fef340f6935143d50635798a099"}],"timestamp_proofs":[],"mirror_hints":[{"mirror_type":"https","name":"Pith Resolver","base_url":"https://pith.science","bundle_url":"https://pith.science/pith/D2WIEVGLCQVTMA7GJQBIZFZQEW/bundle.json","state_url":"https://pith.science/pith/D2WIEVGLCQVTMA7GJQBIZFZQEW/state.json","well_known_bundle_url":"https://pith.science/.well-known/pith/D2WIEVGLCQVTMA7GJQBIZFZQEW/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":"2026-06-08T19:06:21Z","links":{"resolver":"https://pith.science/pith/D2WIEVGLCQVTMA7GJQBIZFZQEW","bundle":"https://pith.science/pith/D2WIEVGLCQVTMA7GJQBIZFZQEW/bundle.json","state":"https://pith.science/pith/D2WIEVGLCQVTMA7GJQBIZFZQEW/state.json","well_known_bundle":"https://pith.science/.well-known/pith/D2WIEVGLCQVTMA7GJQBIZFZQEW/bundle.json"},"state":{"state_type":"pith_open_graph_state","state_version":"1.0","pith_number":"pith:2018:D2WIEVGLCQVTMA7GJQBIZFZQEW","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":"47f2e41a32768f17cc8da5722243b1af2d55464c7dcad91cbd721157bb3fb6f3","cross_cats_sorted":[],"license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"cs.DB","submitted_at":"2018-03-09T23:07:09Z","title_canon_sha256":"f2c1e8a1867c908dd2d3a577a151eb7b11f8fc605213a9d9a36e1f03b0f6c22a"},"schema_version":"1.0","source":{"id":"1803.03716","kind":"arxiv","version":1}},"source_aliases":[{"alias_kind":"arxiv","alias_value":"1803.03716","created_at":"2026-05-17T23:58:05Z"},{"alias_kind":"arxiv_version","alias_value":"1803.03716v1","created_at":"2026-05-17T23:58:05Z"},{"alias_kind":"doi","alias_value":"10.48550/arxiv.1803.03716","created_at":"2026-05-17T23:58:05Z"},{"alias_kind":"pith_short_12","alias_value":"D2WIEVGLCQVT","created_at":"2026-05-18T12:32:19Z"},{"alias_kind":"pith_short_16","alias_value":"D2WIEVGLCQVTMA7G","created_at":"2026-05-18T12:32:19Z"},{"alias_kind":"pith_short_8","alias_value":"D2WIEVGL","created_at":"2026-05-18T12:32:19Z"}],"graph_snapshots":[{"event_id":"sha256:1071ba2a418cb8f217801f98b90087a7a6dc1fef340f6935143d50635798a099","target":"graph","created_at":"2026-05-17T23:58:05Z","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 vast increase in our ability to obtain and store trajectory data necessitates trajectory analytics techniques to extract useful information from this data. Pair-wise distance functions are a foundation building block for common operations on trajectory datasets including constrained SELECT queries, k-nearest neighbors, and similarity and diversity algorithms. The accuracy and performance of these operations depend heavily on the speed and accuracy of the underlying trajectory distance function, which is in turn affected by trajectory calibration. Current methods either require calibrated d","authors_text":"Kenrick Fernande, Pedram Gharani, Vineet Raghu","cross_cats":[],"headline":"","license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"cs.DB","submitted_at":"2018-03-09T23:07:09Z","title":"TRAJEDI: Trajectory Dissimilarity"},"references":{"count":0,"internal_anchors":0,"resolved_work":0,"sample":[],"snapshot_sha256":"258153158e38e3291e3d48162225fcdb2d5a3ed65a07baac614ab91432fd4f57"},"source":{"id":"1803.03716","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":"sha256:93aedb14905cc4301fed8d0d6a8eb31345e47d4b5e2e253adfc90c70b08ad691","target":"record","created_at":"2026-05-17T23:58:05Z","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":"47f2e41a32768f17cc8da5722243b1af2d55464c7dcad91cbd721157bb3fb6f3","cross_cats_sorted":[],"license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"cs.DB","submitted_at":"2018-03-09T23:07:09Z","title_canon_sha256":"f2c1e8a1867c908dd2d3a577a151eb7b11f8fc605213a9d9a36e1f03b0f6c22a"},"schema_version":"1.0","source":{"id":"1803.03716","kind":"arxiv","version":1}},"canonical_sha256":"1eac8254cb142b3603e64c028c973025b159dcb6f1133582f1734b7d5f5f25db","receipt":{"algorithm":"ed25519","builder_version":"pith-number-builder-2026-05-17-v1","canonical_sha256":"1eac8254cb142b3603e64c028c973025b159dcb6f1133582f1734b7d5f5f25db","first_computed_at":"2026-05-17T23:58:05.129458Z","key_id":"pith-v1-2026-05","kind":"pith_receipt","last_reissued_at":"2026-05-17T23:58:05.129458Z","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54","receipt_version":"0.3","signature_b64":"2gxu0MYzQw4jEfFX9PTsPx61lBWjl7wP+ls54Qress4hQ/mPDjioBfA7x5qnquS3WfjWkcUxV3kSxMBgaAuKAQ==","signature_status":"signed_v1","signed_at":"2026-05-17T23:58:05.129802Z","signed_message":"canonical_sha256_bytes"},"source_id":"1803.03716","source_kind":"arxiv","source_version":1}}},"equivocations":[],"invalid_events":[],"applied_event_ids":["sha256:93aedb14905cc4301fed8d0d6a8eb31345e47d4b5e2e253adfc90c70b08ad691","sha256:1071ba2a418cb8f217801f98b90087a7a6dc1fef340f6935143d50635798a099"],"state_sha256":"a54ab069a8f66191d865c7b5f3009f00e1df03ba99fd5adafe3bdf20e04617fe"},"bundle_signature":{"signature_status":"signed_v1","algorithm":"ed25519","key_id":"pith-v1-2026-05","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54","signature_b64":"Ck42TLXG2gBzUSZmMIH059NIhNfkILDXZHyY/Zfzl0h4e3o1g/dIKC07sK9hyuwi1h68oz6kNN0ya7vvzPuZCA==","signed_message":"bundle_sha256_bytes","signed_at":"2026-06-08T19:06:21.184116Z","bundle_sha256":"0beac6bd849b943acdffdd43f7febac871ce58fc1b1f0f407bdb7826f811ff90"}}