{"bundle_type":"pith_open_graph_bundle","bundle_version":"1.0","pith_number":"pith:2016:WVNDYTWFTYUREEHDLSMLZELDGF","short_pith_number":"pith:WVNDYTWF","canonical_record":{"source":{"id":"1607.04673","kind":"arxiv","version":4},"metadata":{"license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"cs.CV","submitted_at":"2016-07-15T22:25:46Z","cross_cats_sorted":[],"title_canon_sha256":"f96187785912cfc4f7c88db066416799ad8a504fe26e6d1212b13c46957690b3","abstract_canon_sha256":"34884372ef781f457c2e3474d96a33ae4edfaeed6cc7bf1474034726d434f9ab"},"schema_version":"1.0"},"canonical_sha256":"b55a3c4ec59e291210e35c98bc9163315af036c02c270988befe4b05e34dd73e","source":{"kind":"arxiv","id":"1607.04673","version":4},"source_aliases":[{"alias_kind":"arxiv","alias_value":"1607.04673","created_at":"2026-05-18T00:51:57Z"},{"alias_kind":"arxiv_version","alias_value":"1607.04673v4","created_at":"2026-05-18T00:51:57Z"},{"alias_kind":"doi","alias_value":"10.48550/arxiv.1607.04673","created_at":"2026-05-18T00:51:57Z"},{"alias_kind":"pith_short_12","alias_value":"WVNDYTWFTYUR","created_at":"2026-05-18T12:30:51Z"},{"alias_kind":"pith_short_16","alias_value":"WVNDYTWFTYUREEHD","created_at":"2026-05-18T12:30:51Z"},{"alias_kind":"pith_short_8","alias_value":"WVNDYTWF","created_at":"2026-05-18T12:30:51Z"}],"events":[{"event_type":"record_created","subject_pith_number":"pith:2016:WVNDYTWFTYUREEHDLSMLZELDGF","target":"record","payload":{"canonical_record":{"source":{"id":"1607.04673","kind":"arxiv","version":4},"metadata":{"license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"cs.CV","submitted_at":"2016-07-15T22:25:46Z","cross_cats_sorted":[],"title_canon_sha256":"f96187785912cfc4f7c88db066416799ad8a504fe26e6d1212b13c46957690b3","abstract_canon_sha256":"34884372ef781f457c2e3474d96a33ae4edfaeed6cc7bf1474034726d434f9ab"},"schema_version":"1.0"},"canonical_sha256":"b55a3c4ec59e291210e35c98bc9163315af036c02c270988befe4b05e34dd73e","receipt":{"kind":"pith_receipt","key_id":"pith-v1-2026-05","algorithm":"ed25519","signed_at":"2026-05-18T00:51:57.750124Z","signature_b64":"x5UyGHm6NqyiD1sY05+REDAeWDmwetxity/PS5PdYqgJzwWyXyRgTm7PaoL4yh4CcPUyWT+sZ4APyRoHkcfPDA==","signed_message":"canonical_sha256_bytes","builder_version":"pith-number-builder-2026-05-17-v1","receipt_version":"0.3","canonical_sha256":"b55a3c4ec59e291210e35c98bc9163315af036c02c270988befe4b05e34dd73e","last_reissued_at":"2026-05-18T00:51:57.749405Z","signature_status":"signed_v1","first_computed_at":"2026-05-18T00:51:57.749405Z","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54"},"source_kind":"arxiv","source_id":"1607.04673","source_version":4,"attestation_state":"computed"},"signer":{"signer_id":"pith.science","signer_type":"pith_registry","key_id":"pith-v1-2026-05","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54"},"created_at":"2026-05-18T00:51:57Z","supersedes":[],"prev_event":null,"signature":{"signature_status":"signed_v1","algorithm":"ed25519","key_id":"pith-v1-2026-05","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54","signature_b64":"kyad4EHyDdrwO12/SBNyXlM8JWWoZqFvHfR94n2HfCyt4S8Uu9jDt3IE490i9rP1awtB6JcVGlDF+cyN1g2uDA==","signed_message":"open_graph_event_sha256_bytes","signed_at":"2026-05-26T17:40:02.095736Z"},"content_sha256":"91a8f54fb4ba6f4f4225a287fda9a4e260b1d8d7705c6e4478e7bfad53f7e96d","schema_version":"1.0","event_id":"sha256:91a8f54fb4ba6f4f4225a287fda9a4e260b1d8d7705c6e4478e7bfad53f7e96d"},{"event_type":"graph_snapshot","subject_pith_number":"pith:2016:WVNDYTWFTYUREEHDLSMLZELDGF","target":"graph","payload":{"graph_snapshot":{"paper":{"title":"Unifying Registration based Tracking: A Case Study with Structural Similarity","license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","headline":"","cross_cats":[],"primary_cat":"cs.CV","authors_text":"Abhineet Singh, Martin Jagersand, Mennatullah Siam","submitted_at":"2016-07-15T22:25:46Z","abstract_excerpt":"This paper adapts a popular image quality measure called structural similarity for high precision registration based tracking while also introducing a simpler and faster variant of the same. Further, these are evaluated comprehensively against existing measures using a unified approach to study registration based trackers that decomposes them into three constituent sub modules - appearance model, state space model and search method. Several popular trackers in literature are broken down using this method so that their contributions - as of this paper - are shown to be limited to only one or tw"},"claims":{"count":0,"items":[],"snapshot_sha256":"258153158e38e3291e3d48162225fcdb2d5a3ed65a07baac614ab91432fd4f57"},"source":{"id":"1607.04673","kind":"arxiv","version":4},"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":"2026-05-18T00:51:57Z","supersedes":[],"prev_event":null,"signature":{"signature_status":"signed_v1","algorithm":"ed25519","key_id":"pith-v1-2026-05","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54","signature_b64":"J4Y7dsOVH55ajUTnN2q3E7MN5fR6mOIfi2ZgUF5zDnDeasREAsoKnBeCgtLdGZGh1FibPuzfyUMArZmoVjf4Bg==","signed_message":"open_graph_event_sha256_bytes","signed_at":"2026-05-26T17:40:02.096291Z"},"content_sha256":"ea30395105461f63ef15dcfe53e6880d67f8e18b34179790e1f6388c057c3039","schema_version":"1.0","event_id":"sha256:ea30395105461f63ef15dcfe53e6880d67f8e18b34179790e1f6388c057c3039"}],"timestamp_proofs":[],"mirror_hints":[{"mirror_type":"https","name":"Pith Resolver","base_url":"https://pith.science","bundle_url":"https://pith.science/pith/WVNDYTWFTYUREEHDLSMLZELDGF/bundle.json","state_url":"https://pith.science/pith/WVNDYTWFTYUREEHDLSMLZELDGF/state.json","well_known_bundle_url":"https://pith.science/.well-known/pith/WVNDYTWFTYUREEHDLSMLZELDGF/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":"2026-05-26T17:40:02Z","links":{"resolver":"https://pith.science/pith/WVNDYTWFTYUREEHDLSMLZELDGF","bundle":"https://pith.science/pith/WVNDYTWFTYUREEHDLSMLZELDGF/bundle.json","state":"https://pith.science/pith/WVNDYTWFTYUREEHDLSMLZELDGF/state.json","well_known_bundle":"https://pith.science/.well-known/pith/WVNDYTWFTYUREEHDLSMLZELDGF/bundle.json"},"state":{"state_type":"pith_open_graph_state","state_version":"1.0","pith_number":"pith:2016:WVNDYTWFTYUREEHDLSMLZELDGF","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":"34884372ef781f457c2e3474d96a33ae4edfaeed6cc7bf1474034726d434f9ab","cross_cats_sorted":[],"license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"cs.CV","submitted_at":"2016-07-15T22:25:46Z","title_canon_sha256":"f96187785912cfc4f7c88db066416799ad8a504fe26e6d1212b13c46957690b3"},"schema_version":"1.0","source":{"id":"1607.04673","kind":"arxiv","version":4}},"source_aliases":[{"alias_kind":"arxiv","alias_value":"1607.04673","created_at":"2026-05-18T00:51:57Z"},{"alias_kind":"arxiv_version","alias_value":"1607.04673v4","created_at":"2026-05-18T00:51:57Z"},{"alias_kind":"doi","alias_value":"10.48550/arxiv.1607.04673","created_at":"2026-05-18T00:51:57Z"},{"alias_kind":"pith_short_12","alias_value":"WVNDYTWFTYUR","created_at":"2026-05-18T12:30:51Z"},{"alias_kind":"pith_short_16","alias_value":"WVNDYTWFTYUREEHD","created_at":"2026-05-18T12:30:51Z"},{"alias_kind":"pith_short_8","alias_value":"WVNDYTWF","created_at":"2026-05-18T12:30:51Z"}],"graph_snapshots":[{"event_id":"sha256:ea30395105461f63ef15dcfe53e6880d67f8e18b34179790e1f6388c057c3039","target":"graph","created_at":"2026-05-18T00:51:57Z","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":"This paper adapts a popular image quality measure called structural similarity for high precision registration based tracking while also introducing a simpler and faster variant of the same. Further, these are evaluated comprehensively against existing measures using a unified approach to study registration based trackers that decomposes them into three constituent sub modules - appearance model, state space model and search method. Several popular trackers in literature are broken down using this method so that their contributions - as of this paper - are shown to be limited to only one or tw","authors_text":"Abhineet Singh, Martin Jagersand, Mennatullah Siam","cross_cats":[],"headline":"","license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"cs.CV","submitted_at":"2016-07-15T22:25:46Z","title":"Unifying Registration based Tracking: A Case Study with Structural Similarity"},"references":{"count":0,"internal_anchors":0,"resolved_work":0,"sample":[],"snapshot_sha256":"258153158e38e3291e3d48162225fcdb2d5a3ed65a07baac614ab91432fd4f57"},"source":{"id":"1607.04673","kind":"arxiv","version":4},"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":"sha256:91a8f54fb4ba6f4f4225a287fda9a4e260b1d8d7705c6e4478e7bfad53f7e96d","target":"record","created_at":"2026-05-18T00:51:57Z","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":"34884372ef781f457c2e3474d96a33ae4edfaeed6cc7bf1474034726d434f9ab","cross_cats_sorted":[],"license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"cs.CV","submitted_at":"2016-07-15T22:25:46Z","title_canon_sha256":"f96187785912cfc4f7c88db066416799ad8a504fe26e6d1212b13c46957690b3"},"schema_version":"1.0","source":{"id":"1607.04673","kind":"arxiv","version":4}},"canonical_sha256":"b55a3c4ec59e291210e35c98bc9163315af036c02c270988befe4b05e34dd73e","receipt":{"algorithm":"ed25519","builder_version":"pith-number-builder-2026-05-17-v1","canonical_sha256":"b55a3c4ec59e291210e35c98bc9163315af036c02c270988befe4b05e34dd73e","first_computed_at":"2026-05-18T00:51:57.749405Z","key_id":"pith-v1-2026-05","kind":"pith_receipt","last_reissued_at":"2026-05-18T00:51:57.749405Z","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54","receipt_version":"0.3","signature_b64":"x5UyGHm6NqyiD1sY05+REDAeWDmwetxity/PS5PdYqgJzwWyXyRgTm7PaoL4yh4CcPUyWT+sZ4APyRoHkcfPDA==","signature_status":"signed_v1","signed_at":"2026-05-18T00:51:57.750124Z","signed_message":"canonical_sha256_bytes"},"source_id":"1607.04673","source_kind":"arxiv","source_version":4}}},"equivocations":[],"invalid_events":[],"applied_event_ids":["sha256:91a8f54fb4ba6f4f4225a287fda9a4e260b1d8d7705c6e4478e7bfad53f7e96d","sha256:ea30395105461f63ef15dcfe53e6880d67f8e18b34179790e1f6388c057c3039"],"state_sha256":"a83490bfa5422e38679e02b98f4cff67aea7a8f28adc741d4fbc85af3de8d26f"},"bundle_signature":{"signature_status":"signed_v1","algorithm":"ed25519","key_id":"pith-v1-2026-05","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54","signature_b64":"9Inxyyc1gBCYNSY5ZvzYHA/evK54vhgCu69ZN6b4xCL2y6cs4bSqIiR2qyQeHfQA2Z6TO+DdGU4zhJEwBgzbCA==","signed_message":"bundle_sha256_bytes","signed_at":"2026-05-26T17:40:02.099847Z","bundle_sha256":"3f5b31f8e582d8bf3df3cdd00d00e3a1a1956b6634ac5d31b89980735cc81e2d"}}