{"bundle_type":"pith_open_graph_bundle","bundle_version":"1.0","pith_number":"pith:2022:I4FAOHKQQQY7VEIVRPWWXWZ3IN","short_pith_number":"pith:I4FAOHKQ","canonical_record":{"source":{"id":"2204.07058","kind":"arxiv","version":1},"metadata":{"license":"http://creativecommons.org/licenses/by/4.0/","primary_cat":"cs.NI","submitted_at":"2022-03-19T08:45:45Z","cross_cats_sorted":["cs.LG"],"title_canon_sha256":"4feae776232f426f162f2fe09a68a1f6030019688e64e917be004d71bb91dd72","abstract_canon_sha256":"3ec546f09139bf87882efcf5901016080fe4e05684febf8d56fe263bddefd3da"},"schema_version":"1.0"},"canonical_sha256":"470a071d508431fa91158bed6bdb3b4354f75f54be070bbb439872a5a0f41143","source":{"kind":"arxiv","id":"2204.07058","version":1},"source_aliases":[{"alias_kind":"arxiv","alias_value":"2204.07058","created_at":"2026-07-05T04:14:48Z"},{"alias_kind":"arxiv_version","alias_value":"2204.07058v1","created_at":"2026-07-05T04:14:48Z"},{"alias_kind":"doi","alias_value":"10.48550/arxiv.2204.07058","created_at":"2026-07-05T04:14:48Z"},{"alias_kind":"pith_short_12","alias_value":"I4FAOHKQQQY7","created_at":"2026-07-05T04:14:48Z"},{"alias_kind":"pith_short_16","alias_value":"I4FAOHKQQQY7VEIV","created_at":"2026-07-05T04:14:48Z"},{"alias_kind":"pith_short_8","alias_value":"I4FAOHKQ","created_at":"2026-07-05T04:14:48Z"}],"events":[{"event_type":"record_created","subject_pith_number":"pith:2022:I4FAOHKQQQY7VEIVRPWWXWZ3IN","target":"record","payload":{"canonical_record":{"source":{"id":"2204.07058","kind":"arxiv","version":1},"metadata":{"license":"http://creativecommons.org/licenses/by/4.0/","primary_cat":"cs.NI","submitted_at":"2022-03-19T08:45:45Z","cross_cats_sorted":["cs.LG"],"title_canon_sha256":"4feae776232f426f162f2fe09a68a1f6030019688e64e917be004d71bb91dd72","abstract_canon_sha256":"3ec546f09139bf87882efcf5901016080fe4e05684febf8d56fe263bddefd3da"},"schema_version":"1.0"},"canonical_sha256":"470a071d508431fa91158bed6bdb3b4354f75f54be070bbb439872a5a0f41143","receipt":{"kind":"pith_receipt","key_id":"pith-v1-2026-05","algorithm":"ed25519","signed_at":"2026-07-05T04:14:48.893914Z","signature_b64":"28K1DU/aJNTSA804nNCOGPa/N39+om/Bdv39752ZN+oYTWYtMO0FEqsoX0auAfnL0g0rbZdXKlj+df60d4urBA==","signed_message":"canonical_sha256_bytes","builder_version":"pith-number-builder-2026-05-17-v1","receipt_version":"0.3","canonical_sha256":"470a071d508431fa91158bed6bdb3b4354f75f54be070bbb439872a5a0f41143","last_reissued_at":"2026-07-05T04:14:48.893508Z","signature_status":"signed_v1","first_computed_at":"2026-07-05T04:14:48.893508Z","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54"},"source_kind":"arxiv","source_id":"2204.07058","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":"2026-07-05T04:14:48Z","supersedes":[],"prev_event":null,"signature":{"signature_status":"signed_v1","algorithm":"ed25519","key_id":"pith-v1-2026-05","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54","signature_b64":"BPAsUVyAEkW1ezAIPFnJ49ApdEmd4A22+QRLDrCnnLsUQLdKBbz0qk7BRFs9JlUb5UHmFoxr5W4mK3yGCh1yBA==","signed_message":"open_graph_event_sha256_bytes","signed_at":"2026-08-13T04:52:16.874377Z"},"content_sha256":"152bf7a21f0baab83f92049dbaa93f9a9458719da97ba841abca828c776c4189","schema_version":"1.0","event_id":"sha256:152bf7a21f0baab83f92049dbaa93f9a9458719da97ba841abca828c776c4189"},{"event_type":"graph_snapshot","subject_pith_number":"pith:2022:I4FAOHKQQQY7VEIVRPWWXWZ3IN","target":"graph","payload":{"graph_snapshot":{"paper":{"title":"Reflective Fiber Faults Detection and Characterization Using Long-Short-Term Memory","license":"http://creativecommons.org/licenses/by/4.0/","headline":"","cross_cats":["cs.LG"],"primary_cat":"cs.NI","authors_text":"Carsten Tropschug, Helmut Griesser, Khouloud Abdelli, Peter Ehrle, Stephan Pachnicke","submitted_at":"2022-03-19T08:45:45Z","abstract_excerpt":"To reduce operation-and-maintenance expenses (OPEX) and to ensure optical network survivability, optical network operators need to detect and diagnose faults in a timely manner and with high accuracy. With the rapid advancement of telemetry technology and data analysis techniques, data-driven approaches leveraging telemetry data to tackle the fault diagnosis problem have been gaining popularity due to their quick implementation and deployment. In this paper, we propose a novel multi-task learning model based on long short-term memory (LSTM) to detect, locate, and estimate the reflectance of fi"},"claims":{"count":0,"items":[],"snapshot_sha256":"258153158e38e3291e3d48162225fcdb2d5a3ed65a07baac614ab91432fd4f57"},"source":{"id":"2204.07058","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/2204.07058/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":"2026-07-05T04:14:48Z","supersedes":[],"prev_event":null,"signature":{"signature_status":"signed_v1","algorithm":"ed25519","key_id":"pith-v1-2026-05","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54","signature_b64":"MT5ohVpbVLfQcjI+FbJMFmj99unj2Fm+ZwKHISyhtxxUYr/clVQxzN9fm8Jt98l5r4nGzDAb5s17yGC0dUYYBQ==","signed_message":"open_graph_event_sha256_bytes","signed_at":"2026-08-13T04:52:16.874747Z"},"content_sha256":"86d3266b8347b1d0cb2eb213e40b2661910cd2946e21d57cbabf1cb8153c1811","schema_version":"1.0","event_id":"sha256:86d3266b8347b1d0cb2eb213e40b2661910cd2946e21d57cbabf1cb8153c1811"}],"timestamp_proofs":[],"mirror_hints":[{"mirror_type":"https","name":"Pith Resolver","base_url":"https://pith.science","bundle_url":"https://pith.science/pith/I4FAOHKQQQY7VEIVRPWWXWZ3IN/bundle.json","state_url":"https://pith.science/pith/I4FAOHKQQQY7VEIVRPWWXWZ3IN/state.json","well_known_bundle_url":"https://pith.science/.well-known/pith/I4FAOHKQQQY7VEIVRPWWXWZ3IN/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":"2026-08-13T04:52:16Z","links":{"resolver":"https://pith.science/pith/I4FAOHKQQQY7VEIVRPWWXWZ3IN","bundle":"https://pith.science/pith/I4FAOHKQQQY7VEIVRPWWXWZ3IN/bundle.json","state":"https://pith.science/pith/I4FAOHKQQQY7VEIVRPWWXWZ3IN/state.json","well_known_bundle":"https://pith.science/.well-known/pith/I4FAOHKQQQY7VEIVRPWWXWZ3IN/bundle.json"},"state":{"state_type":"pith_open_graph_state","state_version":"1.0","pith_number":"pith:2022:I4FAOHKQQQY7VEIVRPWWXWZ3IN","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":"3ec546f09139bf87882efcf5901016080fe4e05684febf8d56fe263bddefd3da","cross_cats_sorted":["cs.LG"],"license":"http://creativecommons.org/licenses/by/4.0/","primary_cat":"cs.NI","submitted_at":"2022-03-19T08:45:45Z","title_canon_sha256":"4feae776232f426f162f2fe09a68a1f6030019688e64e917be004d71bb91dd72"},"schema_version":"1.0","source":{"id":"2204.07058","kind":"arxiv","version":1}},"source_aliases":[{"alias_kind":"arxiv","alias_value":"2204.07058","created_at":"2026-07-05T04:14:48Z"},{"alias_kind":"arxiv_version","alias_value":"2204.07058v1","created_at":"2026-07-05T04:14:48Z"},{"alias_kind":"doi","alias_value":"10.48550/arxiv.2204.07058","created_at":"2026-07-05T04:14:48Z"},{"alias_kind":"pith_short_12","alias_value":"I4FAOHKQQQY7","created_at":"2026-07-05T04:14:48Z"},{"alias_kind":"pith_short_16","alias_value":"I4FAOHKQQQY7VEIV","created_at":"2026-07-05T04:14:48Z"},{"alias_kind":"pith_short_8","alias_value":"I4FAOHKQ","created_at":"2026-07-05T04:14:48Z"}],"graph_snapshots":[{"event_id":"sha256:86d3266b8347b1d0cb2eb213e40b2661910cd2946e21d57cbabf1cb8153c1811","target":"graph","created_at":"2026-07-05T04:14:48Z","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/2204.07058/integrity.json","findings":[],"snapshot_sha256":"c28c3603d3b5d939e8dc4c7e95fa8dfce3d595e45f758748cecf8e644a296938","summary":{"advisory":0,"by_detector":{},"critical":0,"informational":0}},"paper":{"abstract_excerpt":"To reduce operation-and-maintenance expenses (OPEX) and to ensure optical network survivability, optical network operators need to detect and diagnose faults in a timely manner and with high accuracy. With the rapid advancement of telemetry technology and data analysis techniques, data-driven approaches leveraging telemetry data to tackle the fault diagnosis problem have been gaining popularity due to their quick implementation and deployment. In this paper, we propose a novel multi-task learning model based on long short-term memory (LSTM) to detect, locate, and estimate the reflectance of fi","authors_text":"Carsten Tropschug, Helmut Griesser, Khouloud Abdelli, Peter Ehrle, Stephan Pachnicke","cross_cats":["cs.LG"],"headline":"","license":"http://creativecommons.org/licenses/by/4.0/","primary_cat":"cs.NI","submitted_at":"2022-03-19T08:45:45Z","title":"Reflective Fiber Faults Detection and Characterization Using Long-Short-Term Memory"},"references":{"count":0,"internal_anchors":0,"resolved_work":0,"sample":[],"snapshot_sha256":"258153158e38e3291e3d48162225fcdb2d5a3ed65a07baac614ab91432fd4f57"},"source":{"id":"2204.07058","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":"sha256:152bf7a21f0baab83f92049dbaa93f9a9458719da97ba841abca828c776c4189","target":"record","created_at":"2026-07-05T04:14:48Z","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":"3ec546f09139bf87882efcf5901016080fe4e05684febf8d56fe263bddefd3da","cross_cats_sorted":["cs.LG"],"license":"http://creativecommons.org/licenses/by/4.0/","primary_cat":"cs.NI","submitted_at":"2022-03-19T08:45:45Z","title_canon_sha256":"4feae776232f426f162f2fe09a68a1f6030019688e64e917be004d71bb91dd72"},"schema_version":"1.0","source":{"id":"2204.07058","kind":"arxiv","version":1}},"canonical_sha256":"470a071d508431fa91158bed6bdb3b4354f75f54be070bbb439872a5a0f41143","receipt":{"algorithm":"ed25519","builder_version":"pith-number-builder-2026-05-17-v1","canonical_sha256":"470a071d508431fa91158bed6bdb3b4354f75f54be070bbb439872a5a0f41143","first_computed_at":"2026-07-05T04:14:48.893508Z","key_id":"pith-v1-2026-05","kind":"pith_receipt","last_reissued_at":"2026-07-05T04:14:48.893508Z","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54","receipt_version":"0.3","signature_b64":"28K1DU/aJNTSA804nNCOGPa/N39+om/Bdv39752ZN+oYTWYtMO0FEqsoX0auAfnL0g0rbZdXKlj+df60d4urBA==","signature_status":"signed_v1","signed_at":"2026-07-05T04:14:48.893914Z","signed_message":"canonical_sha256_bytes"},"source_id":"2204.07058","source_kind":"arxiv","source_version":1}}},"equivocations":[],"invalid_events":[],"applied_event_ids":["sha256:152bf7a21f0baab83f92049dbaa93f9a9458719da97ba841abca828c776c4189","sha256:86d3266b8347b1d0cb2eb213e40b2661910cd2946e21d57cbabf1cb8153c1811"],"state_sha256":"05a43f0312da62b5c12e9731726301f3895ec4144961c745d572d6d336067609"},"bundle_signature":{"signature_status":"signed_v1","algorithm":"ed25519","key_id":"pith-v1-2026-05","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54","signature_b64":"3+oZPsAtYUAfB+2m3/O1omzkU/YKNGiGPO5BOcDMpA2GvXChYTbECjeM0H43Ic2sxDer8THAo8x5NAYvRG+0Bg==","signed_message":"bundle_sha256_bytes","signed_at":"2026-08-13T04:52:16.877044Z","bundle_sha256":"676660f2a6ee6c0c8128809a890d1ccf58c007c2c3465a61ac329b1b29a936a9"}}