{"bundle_type":"pith_open_graph_bundle","bundle_version":"1.0","pith_number":"pith:2023:YMA7MQTCTGSULCIDQX36G5DEMF","short_pith_number":"pith:YMA7MQTC","canonical_record":{"source":{"id":"2301.06576","kind":"arxiv","version":1},"metadata":{"license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"eess.SP","submitted_at":"2023-01-16T19:25:59Z","cross_cats_sorted":["cs.IT","cs.LG","math.IT"],"title_canon_sha256":"d21961446ffe050894ed4aec17999d8d1b78d6ed943b7dfbcc2926fbeba0f9e2","abstract_canon_sha256":"293c99bb562866672a7f7fdd7a9ebbfa9856a50eb7127d008279ad7247ffa9d5"},"schema_version":"1.0"},"canonical_sha256":"c301f6426299a545890385f7e37464616a064e30082a1c42532ced33d4f0aa35","source":{"kind":"arxiv","id":"2301.06576","version":1},"source_aliases":[{"alias_kind":"arxiv","alias_value":"2301.06576","created_at":"2026-07-05T05:33:33Z"},{"alias_kind":"arxiv_version","alias_value":"2301.06576v1","created_at":"2026-07-05T05:33:33Z"},{"alias_kind":"doi","alias_value":"10.48550/arxiv.2301.06576","created_at":"2026-07-05T05:33:33Z"},{"alias_kind":"pith_short_12","alias_value":"YMA7MQTCTGSU","created_at":"2026-07-05T05:33:33Z"},{"alias_kind":"pith_short_16","alias_value":"YMA7MQTCTGSULCID","created_at":"2026-07-05T05:33:33Z"},{"alias_kind":"pith_short_8","alias_value":"YMA7MQTC","created_at":"2026-07-05T05:33:33Z"}],"events":[{"event_type":"record_created","subject_pith_number":"pith:2023:YMA7MQTCTGSULCIDQX36G5DEMF","target":"record","payload":{"canonical_record":{"source":{"id":"2301.06576","kind":"arxiv","version":1},"metadata":{"license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"eess.SP","submitted_at":"2023-01-16T19:25:59Z","cross_cats_sorted":["cs.IT","cs.LG","math.IT"],"title_canon_sha256":"d21961446ffe050894ed4aec17999d8d1b78d6ed943b7dfbcc2926fbeba0f9e2","abstract_canon_sha256":"293c99bb562866672a7f7fdd7a9ebbfa9856a50eb7127d008279ad7247ffa9d5"},"schema_version":"1.0"},"canonical_sha256":"c301f6426299a545890385f7e37464616a064e30082a1c42532ced33d4f0aa35","receipt":{"kind":"pith_receipt","key_id":"pith-v1-2026-05","algorithm":"ed25519","signed_at":"2026-07-05T05:33:33.414813Z","signature_b64":"1KU9MhwuoY4Awi9aw7/kCkPlJcmFV03dzJaQnjWcbjGDd4I6/30j7vDLF4Tv0CBwcszuQ4d9JSBR4BVM1+ZxCg==","signed_message":"canonical_sha256_bytes","builder_version":"pith-number-builder-2026-05-17-v1","receipt_version":"0.3","canonical_sha256":"c301f6426299a545890385f7e37464616a064e30082a1c42532ced33d4f0aa35","last_reissued_at":"2026-07-05T05:33:33.414243Z","signature_status":"signed_v1","first_computed_at":"2026-07-05T05:33:33.414243Z","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54"},"source_kind":"arxiv","source_id":"2301.06576","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":"2026-07-05T05:33:33Z","supersedes":[],"prev_event":null,"signature":{"signature_status":"signed_v1","algorithm":"ed25519","key_id":"pith-v1-2026-05","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54","signature_b64":"8pAFqym3GK9UjyWowROeBf6eo53ktrrURxVedIyVn+B1NhQl0KkMa5UtafPmvUW/3+bv2r7f19F6At1dsd1ACQ==","signed_message":"open_graph_event_sha256_bytes","signed_at":"2026-08-22T13:22:32.349320Z"},"content_sha256":"556b7b05dd8e33640097830a3a07befc75e90b0895f8aedf61c3b094c42da111","schema_version":"1.0","event_id":"sha256:556b7b05dd8e33640097830a3a07befc75e90b0895f8aedf61c3b094c42da111"},{"event_type":"graph_snapshot","subject_pith_number":"pith:2023:YMA7MQTCTGSULCIDQX36G5DEMF","target":"graph","payload":{"graph_snapshot":{"paper":{"title":"Improving the Bootstrap of Blind Equalizers with Variational Autoencoders","license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","headline":"","cross_cats":["cs.IT","cs.LG","math.IT"],"primary_cat":"eess.SP","authors_text":"Fred Buchali, Laurent Schmalen, Vincent Lauinger","submitted_at":"2023-01-16T19:25:59Z","abstract_excerpt":"We evaluate the start-up of blind equalizers at critical working points, analyze the advantages and obstacles of commonly-used algorithms, and demonstrate how the recently-proposed variational autoencoder (VAE) based equalizers can improve bootstrapping."},"claims":{"count":0,"items":[],"snapshot_sha256":"258153158e38e3291e3d48162225fcdb2d5a3ed65a07baac614ab91432fd4f57"},"source":{"id":"2301.06576","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/2301.06576/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":"2026-07-05T05:33:33Z","supersedes":[],"prev_event":null,"signature":{"signature_status":"signed_v1","algorithm":"ed25519","key_id":"pith-v1-2026-05","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54","signature_b64":"+CWDqYeFGW+WaaG11FqflMYKIxG5jn9W98i975J320tUDmeP04J0KzPde1YaOIdIKPSAoLHT28xaS02t2YlvAw==","signed_message":"open_graph_event_sha256_bytes","signed_at":"2026-08-22T13:22:32.350017Z"},"content_sha256":"2a1f0de10170436f5fb6d4d26b451aa63171f2e95bc50cbd2eb0bdd5ea7e266e","schema_version":"1.0","event_id":"sha256:2a1f0de10170436f5fb6d4d26b451aa63171f2e95bc50cbd2eb0bdd5ea7e266e"}],"timestamp_proofs":[],"mirror_hints":[{"mirror_type":"https","name":"Pith Resolver","base_url":"https://pith.science","bundle_url":"https://pith.science/pith/YMA7MQTCTGSULCIDQX36G5DEMF/bundle.json","state_url":"https://pith.science/pith/YMA7MQTCTGSULCIDQX36G5DEMF/state.json","well_known_bundle_url":"https://pith.science/.well-known/pith/YMA7MQTCTGSULCIDQX36G5DEMF/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":"2026-08-22T13:22:32Z","links":{"resolver":"https://pith.science/pith/YMA7MQTCTGSULCIDQX36G5DEMF","bundle":"https://pith.science/pith/YMA7MQTCTGSULCIDQX36G5DEMF/bundle.json","state":"https://pith.science/pith/YMA7MQTCTGSULCIDQX36G5DEMF/state.json","well_known_bundle":"https://pith.science/.well-known/pith/YMA7MQTCTGSULCIDQX36G5DEMF/bundle.json"},"state":{"state_type":"pith_open_graph_state","state_version":"1.0","pith_number":"pith:2023:YMA7MQTCTGSULCIDQX36G5DEMF","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":"293c99bb562866672a7f7fdd7a9ebbfa9856a50eb7127d008279ad7247ffa9d5","cross_cats_sorted":["cs.IT","cs.LG","math.IT"],"license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"eess.SP","submitted_at":"2023-01-16T19:25:59Z","title_canon_sha256":"d21961446ffe050894ed4aec17999d8d1b78d6ed943b7dfbcc2926fbeba0f9e2"},"schema_version":"1.0","source":{"id":"2301.06576","kind":"arxiv","version":1}},"source_aliases":[{"alias_kind":"arxiv","alias_value":"2301.06576","created_at":"2026-07-05T05:33:33Z"},{"alias_kind":"arxiv_version","alias_value":"2301.06576v1","created_at":"2026-07-05T05:33:33Z"},{"alias_kind":"doi","alias_value":"10.48550/arxiv.2301.06576","created_at":"2026-07-05T05:33:33Z"},{"alias_kind":"pith_short_12","alias_value":"YMA7MQTCTGSU","created_at":"2026-07-05T05:33:33Z"},{"alias_kind":"pith_short_16","alias_value":"YMA7MQTCTGSULCID","created_at":"2026-07-05T05:33:33Z"},{"alias_kind":"pith_short_8","alias_value":"YMA7MQTC","created_at":"2026-07-05T05:33:33Z"}],"graph_snapshots":[{"event_id":"sha256:2a1f0de10170436f5fb6d4d26b451aa63171f2e95bc50cbd2eb0bdd5ea7e266e","target":"graph","created_at":"2026-07-05T05:33:33Z","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/2301.06576/integrity.json","findings":[],"snapshot_sha256":"c28c3603d3b5d939e8dc4c7e95fa8dfce3d595e45f758748cecf8e644a296938","summary":{"advisory":0,"by_detector":{},"critical":0,"informational":0}},"paper":{"abstract_excerpt":"We evaluate the start-up of blind equalizers at critical working points, analyze the advantages and obstacles of commonly-used algorithms, and demonstrate how the recently-proposed variational autoencoder (VAE) based equalizers can improve bootstrapping.","authors_text":"Fred Buchali, Laurent Schmalen, Vincent Lauinger","cross_cats":["cs.IT","cs.LG","math.IT"],"headline":"","license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"eess.SP","submitted_at":"2023-01-16T19:25:59Z","title":"Improving the Bootstrap of Blind Equalizers with Variational Autoencoders"},"references":{"count":0,"internal_anchors":0,"resolved_work":0,"sample":[],"snapshot_sha256":"258153158e38e3291e3d48162225fcdb2d5a3ed65a07baac614ab91432fd4f57"},"source":{"id":"2301.06576","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":"sha256:556b7b05dd8e33640097830a3a07befc75e90b0895f8aedf61c3b094c42da111","target":"record","created_at":"2026-07-05T05:33:33Z","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":"293c99bb562866672a7f7fdd7a9ebbfa9856a50eb7127d008279ad7247ffa9d5","cross_cats_sorted":["cs.IT","cs.LG","math.IT"],"license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"eess.SP","submitted_at":"2023-01-16T19:25:59Z","title_canon_sha256":"d21961446ffe050894ed4aec17999d8d1b78d6ed943b7dfbcc2926fbeba0f9e2"},"schema_version":"1.0","source":{"id":"2301.06576","kind":"arxiv","version":1}},"canonical_sha256":"c301f6426299a545890385f7e37464616a064e30082a1c42532ced33d4f0aa35","receipt":{"algorithm":"ed25519","builder_version":"pith-number-builder-2026-05-17-v1","canonical_sha256":"c301f6426299a545890385f7e37464616a064e30082a1c42532ced33d4f0aa35","first_computed_at":"2026-07-05T05:33:33.414243Z","key_id":"pith-v1-2026-05","kind":"pith_receipt","last_reissued_at":"2026-07-05T05:33:33.414243Z","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54","receipt_version":"0.3","signature_b64":"1KU9MhwuoY4Awi9aw7/kCkPlJcmFV03dzJaQnjWcbjGDd4I6/30j7vDLF4Tv0CBwcszuQ4d9JSBR4BVM1+ZxCg==","signature_status":"signed_v1","signed_at":"2026-07-05T05:33:33.414813Z","signed_message":"canonical_sha256_bytes"},"source_id":"2301.06576","source_kind":"arxiv","source_version":1}}},"equivocations":[],"invalid_events":[],"applied_event_ids":["sha256:556b7b05dd8e33640097830a3a07befc75e90b0895f8aedf61c3b094c42da111","sha256:2a1f0de10170436f5fb6d4d26b451aa63171f2e95bc50cbd2eb0bdd5ea7e266e"],"state_sha256":"356f031a19d4e605c08fd5def46f241eb8bc038bcf4c5be9f41347511f0741e1"},"bundle_signature":{"signature_status":"signed_v1","algorithm":"ed25519","key_id":"pith-v1-2026-05","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54","signature_b64":"Jcg8CUyWhRIKhk8EIm3L0mbiYpsO3Im403toi/D5uEEcg6yx7K+jW3xYkAI0tEJzF4pKQ/NlBDP+Lm9lLs54Bw==","signed_message":"bundle_sha256_bytes","signed_at":"2026-08-22T13:22:32.356201Z","bundle_sha256":"520545e37b3c80968b3d797f2f9f32770ab89a4bc7f50b76ab386a3a5744cf97"}}