{"bundle_type":"pith_open_graph_bundle","bundle_version":"1.0","pith_number":"pith:2020:DI6IRNPQN5YKXRLU4W4C2KMW4L","short_pith_number":"pith:DI6IRNPQ","canonical_record":{"source":{"id":"2005.11092","kind":"arxiv","version":2},"metadata":{"license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"eess.IV","submitted_at":"2020-05-22T10:35:11Z","cross_cats_sorted":["cs.CV"],"title_canon_sha256":"3e91f8fc1b9e69e00eb41ec470406088a1d7487a2f5b9ed4fd8a327cff04c046","abstract_canon_sha256":"f79dcfaed3f0855e0efaa90086236324be7ae0fa626bc585549137fb4c118853"},"schema_version":"1.0"},"canonical_sha256":"1a3c88b5f06f70abc574e5b82d2996e2f801b29032030bf20069f9923f1d3565","source":{"kind":"arxiv","id":"2005.11092","version":2},"source_aliases":[{"alias_kind":"arxiv","alias_value":"2005.11092","created_at":"2026-07-05T02:48:50Z"},{"alias_kind":"arxiv_version","alias_value":"2005.11092v2","created_at":"2026-07-05T02:48:50Z"},{"alias_kind":"doi","alias_value":"10.48550/arxiv.2005.11092","created_at":"2026-07-05T02:48:50Z"},{"alias_kind":"pith_short_12","alias_value":"DI6IRNPQN5YK","created_at":"2026-07-05T02:48:50Z"},{"alias_kind":"pith_short_16","alias_value":"DI6IRNPQN5YKXRLU","created_at":"2026-07-05T02:48:50Z"},{"alias_kind":"pith_short_8","alias_value":"DI6IRNPQ","created_at":"2026-07-05T02:48:50Z"}],"events":[{"event_type":"record_created","subject_pith_number":"pith:2020:DI6IRNPQN5YKXRLU4W4C2KMW4L","target":"record","payload":{"canonical_record":{"source":{"id":"2005.11092","kind":"arxiv","version":2},"metadata":{"license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"eess.IV","submitted_at":"2020-05-22T10:35:11Z","cross_cats_sorted":["cs.CV"],"title_canon_sha256":"3e91f8fc1b9e69e00eb41ec470406088a1d7487a2f5b9ed4fd8a327cff04c046","abstract_canon_sha256":"f79dcfaed3f0855e0efaa90086236324be7ae0fa626bc585549137fb4c118853"},"schema_version":"1.0"},"canonical_sha256":"1a3c88b5f06f70abc574e5b82d2996e2f801b29032030bf20069f9923f1d3565","receipt":{"kind":"pith_receipt","key_id":"pith-v1-2026-05","algorithm":"ed25519","signed_at":"2026-07-05T02:48:50.789775Z","signature_b64":"tc19MtUJ1d38w6JSfqK6rxM5T1RSpU2AqkltJKnb2j/FtJfl1X4DJYZK6avyZIAFUvJ5YcGdu1EtryNAI9o2DQ==","signed_message":"canonical_sha256_bytes","builder_version":"pith-number-builder-2026-05-17-v1","receipt_version":"0.3","canonical_sha256":"1a3c88b5f06f70abc574e5b82d2996e2f801b29032030bf20069f9923f1d3565","last_reissued_at":"2026-07-05T02:48:50.789328Z","signature_status":"signed_v1","first_computed_at":"2026-07-05T02:48:50.789328Z","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54"},"source_kind":"arxiv","source_id":"2005.11092","source_version":2,"attestation_state":"computed"},"signer":{"signer_id":"pith.science","signer_type":"pith_registry","key_id":"pith-v1-2026-05","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54"},"created_at":"2026-07-05T02:48:50Z","supersedes":[],"prev_event":null,"signature":{"signature_status":"signed_v1","algorithm":"ed25519","key_id":"pith-v1-2026-05","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54","signature_b64":"6/lPw88elcMxhYrJQNDMXZdYFQ7iMIw9S4YxdFxZq6Lvg/JbPnIspHvh3cBCco2xIjNrFBgGH5unwIRVQxf3Ag==","signed_message":"open_graph_event_sha256_bytes","signed_at":"2026-08-13T05:49:59.251804Z"},"content_sha256":"cb408556cee09143e04e38a7e2c1d889b38b14b6031e9149e60d6b1b46625cd4","schema_version":"1.0","event_id":"sha256:cb408556cee09143e04e38a7e2c1d889b38b14b6031e9149e60d6b1b46625cd4"},{"event_type":"graph_snapshot","subject_pith_number":"pith:2020:DI6IRNPQN5YKXRLU4W4C2KMW4L","target":"graph","payload":{"graph_snapshot":{"paper":{"title":"Improving Co-registration for Sentinel-1 SAR and Sentinel-2 Optical images","license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","headline":"","cross_cats":["cs.CV"],"primary_cat":"eess.IV","authors_text":"Bai Zhu, Chao Yang, Huarong Jia, Youquan He, Yuanxin Ye","submitted_at":"2020-05-22T10:35:11Z","abstract_excerpt":"Co-registering the Sentinel-1 SAR and Sentinel-2 optical data of European Space Agency (ESA) is of great importance for many remote sensing applications. However, we find that there are evident misregistration shifts between the Sentinel-1 SAR and Sentinel-2 optical images that are directly downloaded from the official website. To address that, this paper presents a fast and effective registration method for the two types of images. In the proposed method, a block-based scheme is first designed to extract evenly distributed interest points. Then the correspondences are detected by using the si"},"claims":{"count":0,"items":[],"snapshot_sha256":"258153158e38e3291e3d48162225fcdb2d5a3ed65a07baac614ab91432fd4f57"},"source":{"id":"2005.11092","kind":"arxiv","version":2},"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/2005.11092/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":"2026-07-05T02:48:50Z","supersedes":[],"prev_event":null,"signature":{"signature_status":"signed_v1","algorithm":"ed25519","key_id":"pith-v1-2026-05","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54","signature_b64":"A5QxP/CMO15Pv6SZfQiqhGff4l/rsZIyIky3r9ppjUEJtiEqA/xY/tzn+tU/CKP+bAwVEifymo62hl1/x6/iBw==","signed_message":"open_graph_event_sha256_bytes","signed_at":"2026-08-13T05:49:59.252185Z"},"content_sha256":"b88ab10805a5e47b5c7dcec7c50101293a26695544a9e3b69d3c6df43180ad03","schema_version":"1.0","event_id":"sha256:b88ab10805a5e47b5c7dcec7c50101293a26695544a9e3b69d3c6df43180ad03"}],"timestamp_proofs":[],"mirror_hints":[{"mirror_type":"https","name":"Pith Resolver","base_url":"https://pith.science","bundle_url":"https://pith.science/pith/DI6IRNPQN5YKXRLU4W4C2KMW4L/bundle.json","state_url":"https://pith.science/pith/DI6IRNPQN5YKXRLU4W4C2KMW4L/state.json","well_known_bundle_url":"https://pith.science/.well-known/pith/DI6IRNPQN5YKXRLU4W4C2KMW4L/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":"2026-08-13T05:49:59Z","links":{"resolver":"https://pith.science/pith/DI6IRNPQN5YKXRLU4W4C2KMW4L","bundle":"https://pith.science/pith/DI6IRNPQN5YKXRLU4W4C2KMW4L/bundle.json","state":"https://pith.science/pith/DI6IRNPQN5YKXRLU4W4C2KMW4L/state.json","well_known_bundle":"https://pith.science/.well-known/pith/DI6IRNPQN5YKXRLU4W4C2KMW4L/bundle.json"},"state":{"state_type":"pith_open_graph_state","state_version":"1.0","pith_number":"pith:2020:DI6IRNPQN5YKXRLU4W4C2KMW4L","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":"f79dcfaed3f0855e0efaa90086236324be7ae0fa626bc585549137fb4c118853","cross_cats_sorted":["cs.CV"],"license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"eess.IV","submitted_at":"2020-05-22T10:35:11Z","title_canon_sha256":"3e91f8fc1b9e69e00eb41ec470406088a1d7487a2f5b9ed4fd8a327cff04c046"},"schema_version":"1.0","source":{"id":"2005.11092","kind":"arxiv","version":2}},"source_aliases":[{"alias_kind":"arxiv","alias_value":"2005.11092","created_at":"2026-07-05T02:48:50Z"},{"alias_kind":"arxiv_version","alias_value":"2005.11092v2","created_at":"2026-07-05T02:48:50Z"},{"alias_kind":"doi","alias_value":"10.48550/arxiv.2005.11092","created_at":"2026-07-05T02:48:50Z"},{"alias_kind":"pith_short_12","alias_value":"DI6IRNPQN5YK","created_at":"2026-07-05T02:48:50Z"},{"alias_kind":"pith_short_16","alias_value":"DI6IRNPQN5YKXRLU","created_at":"2026-07-05T02:48:50Z"},{"alias_kind":"pith_short_8","alias_value":"DI6IRNPQ","created_at":"2026-07-05T02:48:50Z"}],"graph_snapshots":[{"event_id":"sha256:b88ab10805a5e47b5c7dcec7c50101293a26695544a9e3b69d3c6df43180ad03","target":"graph","created_at":"2026-07-05T02:48:50Z","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/2005.11092/integrity.json","findings":[],"snapshot_sha256":"c28c3603d3b5d939e8dc4c7e95fa8dfce3d595e45f758748cecf8e644a296938","summary":{"advisory":0,"by_detector":{},"critical":0,"informational":0}},"paper":{"abstract_excerpt":"Co-registering the Sentinel-1 SAR and Sentinel-2 optical data of European Space Agency (ESA) is of great importance for many remote sensing applications. However, we find that there are evident misregistration shifts between the Sentinel-1 SAR and Sentinel-2 optical images that are directly downloaded from the official website. To address that, this paper presents a fast and effective registration method for the two types of images. In the proposed method, a block-based scheme is first designed to extract evenly distributed interest points. Then the correspondences are detected by using the si","authors_text":"Bai Zhu, Chao Yang, Huarong Jia, Youquan He, Yuanxin Ye","cross_cats":["cs.CV"],"headline":"","license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"eess.IV","submitted_at":"2020-05-22T10:35:11Z","title":"Improving Co-registration for Sentinel-1 SAR and Sentinel-2 Optical images"},"references":{"count":0,"internal_anchors":0,"resolved_work":0,"sample":[],"snapshot_sha256":"258153158e38e3291e3d48162225fcdb2d5a3ed65a07baac614ab91432fd4f57"},"source":{"id":"2005.11092","kind":"arxiv","version":2},"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:cb408556cee09143e04e38a7e2c1d889b38b14b6031e9149e60d6b1b46625cd4","target":"record","created_at":"2026-07-05T02:48:50Z","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":"f79dcfaed3f0855e0efaa90086236324be7ae0fa626bc585549137fb4c118853","cross_cats_sorted":["cs.CV"],"license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"eess.IV","submitted_at":"2020-05-22T10:35:11Z","title_canon_sha256":"3e91f8fc1b9e69e00eb41ec470406088a1d7487a2f5b9ed4fd8a327cff04c046"},"schema_version":"1.0","source":{"id":"2005.11092","kind":"arxiv","version":2}},"canonical_sha256":"1a3c88b5f06f70abc574e5b82d2996e2f801b29032030bf20069f9923f1d3565","receipt":{"algorithm":"ed25519","builder_version":"pith-number-builder-2026-05-17-v1","canonical_sha256":"1a3c88b5f06f70abc574e5b82d2996e2f801b29032030bf20069f9923f1d3565","first_computed_at":"2026-07-05T02:48:50.789328Z","key_id":"pith-v1-2026-05","kind":"pith_receipt","last_reissued_at":"2026-07-05T02:48:50.789328Z","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54","receipt_version":"0.3","signature_b64":"tc19MtUJ1d38w6JSfqK6rxM5T1RSpU2AqkltJKnb2j/FtJfl1X4DJYZK6avyZIAFUvJ5YcGdu1EtryNAI9o2DQ==","signature_status":"signed_v1","signed_at":"2026-07-05T02:48:50.789775Z","signed_message":"canonical_sha256_bytes"},"source_id":"2005.11092","source_kind":"arxiv","source_version":2}}},"equivocations":[],"invalid_events":[],"applied_event_ids":["sha256:cb408556cee09143e04e38a7e2c1d889b38b14b6031e9149e60d6b1b46625cd4","sha256:b88ab10805a5e47b5c7dcec7c50101293a26695544a9e3b69d3c6df43180ad03"],"state_sha256":"a0eb460620435b5b5ea029f9a10e2e707b4ecb55c6170f6063df76e0ef37863c"},"bundle_signature":{"signature_status":"signed_v1","algorithm":"ed25519","key_id":"pith-v1-2026-05","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54","signature_b64":"vnbApPCvM/hDgTejBRU4Ae6xzsHrhri4PnqlZMZ44rRkwMKS/m+ipVvthT++NqOfiUL1Pvr7qTUCoSIMRA9ICw==","signed_message":"bundle_sha256_bytes","signed_at":"2026-08-13T05:49:59.254553Z","bundle_sha256":"3df49af1a5ca13e313f51c4c911cabd504598415d1aeeecdd049c394e842b4d2"}}