{"bundle_type":"pith_open_graph_bundle","bundle_version":"1.0","pith_number":"pith:2021:PPFUNYUP777HQRPN5SQBL3IH5E","short_pith_number":"pith:PPFUNYUP","canonical_record":{"source":{"id":"2101.06771","kind":"arxiv","version":1},"metadata":{"license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"cs.CV","submitted_at":"2021-01-17T20:22:52Z","cross_cats_sorted":[],"title_canon_sha256":"80929960065c9e54d40c9ff704bbf1b86be17b361c92d85ea9ff8887f1ccd4d5","abstract_canon_sha256":"a7953328a615ffd3c028f1ea2b7f916a7315d1558c733a997503d9ca26572b67"},"schema_version":"1.0"},"canonical_sha256":"7bcb46e28ffffe7845edeca015ed07e92e5943b241ddc4f6ce322dcc0ae7fd7c","source":{"kind":"arxiv","id":"2101.06771","version":1},"source_aliases":[{"alias_kind":"arxiv","alias_value":"2101.06771","created_at":"2026-07-05T02:07:36Z"},{"alias_kind":"arxiv_version","alias_value":"2101.06771v1","created_at":"2026-07-05T02:07:36Z"},{"alias_kind":"doi","alias_value":"10.48550/arxiv.2101.06771","created_at":"2026-07-05T02:07:36Z"},{"alias_kind":"pith_short_12","alias_value":"PPFUNYUP777H","created_at":"2026-07-05T02:07:36Z"},{"alias_kind":"pith_short_16","alias_value":"PPFUNYUP777HQRPN","created_at":"2026-07-05T02:07:36Z"},{"alias_kind":"pith_short_8","alias_value":"PPFUNYUP","created_at":"2026-07-05T02:07:36Z"}],"events":[{"event_type":"record_created","subject_pith_number":"pith:2021:PPFUNYUP777HQRPN5SQBL3IH5E","target":"record","payload":{"canonical_record":{"source":{"id":"2101.06771","kind":"arxiv","version":1},"metadata":{"license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"cs.CV","submitted_at":"2021-01-17T20:22:52Z","cross_cats_sorted":[],"title_canon_sha256":"80929960065c9e54d40c9ff704bbf1b86be17b361c92d85ea9ff8887f1ccd4d5","abstract_canon_sha256":"a7953328a615ffd3c028f1ea2b7f916a7315d1558c733a997503d9ca26572b67"},"schema_version":"1.0"},"canonical_sha256":"7bcb46e28ffffe7845edeca015ed07e92e5943b241ddc4f6ce322dcc0ae7fd7c","receipt":{"kind":"pith_receipt","key_id":"pith-v1-2026-05","algorithm":"ed25519","signed_at":"2026-07-05T02:07:36.962577Z","signature_b64":"Iql95cV4YcTrnHRNukCYCereelQ4uR8WoV4dnI5diBDxWjgBzcDrUV9gRglDzILLcq79duyYHdfkHLbBhfgFCA==","signed_message":"canonical_sha256_bytes","builder_version":"pith-number-builder-2026-05-17-v1","receipt_version":"0.3","canonical_sha256":"7bcb46e28ffffe7845edeca015ed07e92e5943b241ddc4f6ce322dcc0ae7fd7c","last_reissued_at":"2026-07-05T02:07:36.962150Z","signature_status":"signed_v1","first_computed_at":"2026-07-05T02:07:36.962150Z","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54"},"source_kind":"arxiv","source_id":"2101.06771","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":"2026-07-05T02:07:36Z","supersedes":[],"prev_event":null,"signature":{"signature_status":"signed_v1","algorithm":"ed25519","key_id":"pith-v1-2026-05","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54","signature_b64":"bSNmPcHAW8QgEhnC4ilAfWADwtTFlNog0GP/HnUAhY8lp3bVH2fO/EIYlpk8tTUBLc4vrSlmyJercKrX2NLuBg==","signed_message":"open_graph_event_sha256_bytes","signed_at":"2026-08-09T07:27:52.018987Z"},"content_sha256":"00f132dc5f981ea051dcd14a971f72f36a058d7cffdc877ae3f4ddda0d2d3f70","schema_version":"1.0","event_id":"sha256:00f132dc5f981ea051dcd14a971f72f36a058d7cffdc877ae3f4ddda0d2d3f70"},{"event_type":"graph_snapshot","subject_pith_number":"pith:2021:PPFUNYUP777HQRPN5SQBL3IH5E","target":"graph","payload":{"graph_snapshot":{"paper":{"title":"Temporal Spatial-Adaptive Interpolation with Deformable Refinement for Electron Microscopic Images","license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","headline":"","cross_cats":[],"primary_cat":"cs.CV","authors_text":"Guodong Sun, Guoqing Li, Hua Han, Lina Zhang, Zejin Wang","submitted_at":"2021-01-17T20:22:52Z","abstract_excerpt":"Recently, flow-based methods have achieved promising success in video frame interpolation. However, electron microscopic (EM) images suffer from unstable image quality, low PSNR, and disorderly deformation. Existing flow-based interpolation methods cannot precisely compute optical flow for EM images since only predicting each position's unique offset. To overcome these problems, we propose a novel interpolation framework for EM images that progressively synthesizes interpolated features in a coarse-to-fine manner. First, we extract missing intermediate features by the proposed temporal spatial"},"claims":{"count":0,"items":[],"snapshot_sha256":"258153158e38e3291e3d48162225fcdb2d5a3ed65a07baac614ab91432fd4f57"},"source":{"id":"2101.06771","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/2101.06771/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":"2026-07-05T02:07:36Z","supersedes":[],"prev_event":null,"signature":{"signature_status":"signed_v1","algorithm":"ed25519","key_id":"pith-v1-2026-05","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54","signature_b64":"F45QhiGWvAsf2SMU+Ud8pDGVOtgomvzYWsfv9bUrxODr142IHnD90GJEB9oi/HaYka760HcdI766nwkjyxQ6Cg==","signed_message":"open_graph_event_sha256_bytes","signed_at":"2026-08-09T07:27:52.019479Z"},"content_sha256":"4db1fc034ec8045ef03eec908bdc9533530910032b03e05c380f6f525e006cff","schema_version":"1.0","event_id":"sha256:4db1fc034ec8045ef03eec908bdc9533530910032b03e05c380f6f525e006cff"}],"timestamp_proofs":[],"mirror_hints":[{"mirror_type":"https","name":"Pith Resolver","base_url":"https://pith.science","bundle_url":"https://pith.science/pith/PPFUNYUP777HQRPN5SQBL3IH5E/bundle.json","state_url":"https://pith.science/pith/PPFUNYUP777HQRPN5SQBL3IH5E/state.json","well_known_bundle_url":"https://pith.science/.well-known/pith/PPFUNYUP777HQRPN5SQBL3IH5E/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":"2026-08-09T07:27:52Z","links":{"resolver":"https://pith.science/pith/PPFUNYUP777HQRPN5SQBL3IH5E","bundle":"https://pith.science/pith/PPFUNYUP777HQRPN5SQBL3IH5E/bundle.json","state":"https://pith.science/pith/PPFUNYUP777HQRPN5SQBL3IH5E/state.json","well_known_bundle":"https://pith.science/.well-known/pith/PPFUNYUP777HQRPN5SQBL3IH5E/bundle.json"},"state":{"state_type":"pith_open_graph_state","state_version":"1.0","pith_number":"pith:2021:PPFUNYUP777HQRPN5SQBL3IH5E","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":"a7953328a615ffd3c028f1ea2b7f916a7315d1558c733a997503d9ca26572b67","cross_cats_sorted":[],"license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"cs.CV","submitted_at":"2021-01-17T20:22:52Z","title_canon_sha256":"80929960065c9e54d40c9ff704bbf1b86be17b361c92d85ea9ff8887f1ccd4d5"},"schema_version":"1.0","source":{"id":"2101.06771","kind":"arxiv","version":1}},"source_aliases":[{"alias_kind":"arxiv","alias_value":"2101.06771","created_at":"2026-07-05T02:07:36Z"},{"alias_kind":"arxiv_version","alias_value":"2101.06771v1","created_at":"2026-07-05T02:07:36Z"},{"alias_kind":"doi","alias_value":"10.48550/arxiv.2101.06771","created_at":"2026-07-05T02:07:36Z"},{"alias_kind":"pith_short_12","alias_value":"PPFUNYUP777H","created_at":"2026-07-05T02:07:36Z"},{"alias_kind":"pith_short_16","alias_value":"PPFUNYUP777HQRPN","created_at":"2026-07-05T02:07:36Z"},{"alias_kind":"pith_short_8","alias_value":"PPFUNYUP","created_at":"2026-07-05T02:07:36Z"}],"graph_snapshots":[{"event_id":"sha256:4db1fc034ec8045ef03eec908bdc9533530910032b03e05c380f6f525e006cff","target":"graph","created_at":"2026-07-05T02:07:36Z","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/2101.06771/integrity.json","findings":[],"snapshot_sha256":"c28c3603d3b5d939e8dc4c7e95fa8dfce3d595e45f758748cecf8e644a296938","summary":{"advisory":0,"by_detector":{},"critical":0,"informational":0}},"paper":{"abstract_excerpt":"Recently, flow-based methods have achieved promising success in video frame interpolation. However, electron microscopic (EM) images suffer from unstable image quality, low PSNR, and disorderly deformation. Existing flow-based interpolation methods cannot precisely compute optical flow for EM images since only predicting each position's unique offset. To overcome these problems, we propose a novel interpolation framework for EM images that progressively synthesizes interpolated features in a coarse-to-fine manner. First, we extract missing intermediate features by the proposed temporal spatial","authors_text":"Guodong Sun, Guoqing Li, Hua Han, Lina Zhang, Zejin Wang","cross_cats":[],"headline":"","license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"cs.CV","submitted_at":"2021-01-17T20:22:52Z","title":"Temporal Spatial-Adaptive Interpolation with Deformable Refinement for Electron Microscopic Images"},"references":{"count":0,"internal_anchors":0,"resolved_work":0,"sample":[],"snapshot_sha256":"258153158e38e3291e3d48162225fcdb2d5a3ed65a07baac614ab91432fd4f57"},"source":{"id":"2101.06771","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":"sha256:00f132dc5f981ea051dcd14a971f72f36a058d7cffdc877ae3f4ddda0d2d3f70","target":"record","created_at":"2026-07-05T02:07:36Z","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":"a7953328a615ffd3c028f1ea2b7f916a7315d1558c733a997503d9ca26572b67","cross_cats_sorted":[],"license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"cs.CV","submitted_at":"2021-01-17T20:22:52Z","title_canon_sha256":"80929960065c9e54d40c9ff704bbf1b86be17b361c92d85ea9ff8887f1ccd4d5"},"schema_version":"1.0","source":{"id":"2101.06771","kind":"arxiv","version":1}},"canonical_sha256":"7bcb46e28ffffe7845edeca015ed07e92e5943b241ddc4f6ce322dcc0ae7fd7c","receipt":{"algorithm":"ed25519","builder_version":"pith-number-builder-2026-05-17-v1","canonical_sha256":"7bcb46e28ffffe7845edeca015ed07e92e5943b241ddc4f6ce322dcc0ae7fd7c","first_computed_at":"2026-07-05T02:07:36.962150Z","key_id":"pith-v1-2026-05","kind":"pith_receipt","last_reissued_at":"2026-07-05T02:07:36.962150Z","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54","receipt_version":"0.3","signature_b64":"Iql95cV4YcTrnHRNukCYCereelQ4uR8WoV4dnI5diBDxWjgBzcDrUV9gRglDzILLcq79duyYHdfkHLbBhfgFCA==","signature_status":"signed_v1","signed_at":"2026-07-05T02:07:36.962577Z","signed_message":"canonical_sha256_bytes"},"source_id":"2101.06771","source_kind":"arxiv","source_version":1}}},"equivocations":[],"invalid_events":[],"applied_event_ids":["sha256:00f132dc5f981ea051dcd14a971f72f36a058d7cffdc877ae3f4ddda0d2d3f70","sha256:4db1fc034ec8045ef03eec908bdc9533530910032b03e05c380f6f525e006cff"],"state_sha256":"27f5825850dee368fd6b3d81fe95bfe7ecefa22dd8bb2dcb731b9fa8a8d6860c"},"bundle_signature":{"signature_status":"signed_v1","algorithm":"ed25519","key_id":"pith-v1-2026-05","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54","signature_b64":"6qpS0F1+VURlhqfVB93tdGNKKKgbQGn/KuFWJz4kns6t4cimaBTasZRUIiAg1vG69VxaPbiHtB5A++b4mTsWAQ==","signed_message":"bundle_sha256_bytes","signed_at":"2026-08-09T07:27:52.023082Z","bundle_sha256":"28791c01cdc10c28da79c70d9e74b45c624314687e0920a77e3ef1de1eb9961c"}}