{"bundle_type":"pith_open_graph_bundle","bundle_version":"1.0","pith_number":"pith:2017:YINX4EJECXJ6PNSXXGHRRGGEEC","short_pith_number":"pith:YINX4EJE","canonical_record":{"source":{"id":"1707.07769","kind":"arxiv","version":2},"metadata":{"license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"quant-ph","submitted_at":"2017-07-24T23:05:44Z","cross_cats_sorted":["cs.LG"],"title_canon_sha256":"dcb76eafa1761aea8111db2b1115bd0e357c710dab55d4149be901991ac03e27","abstract_canon_sha256":"ff1ef73438184d2dc323729388652b5fb043d6ebe46767546f95aa107ead92c5"},"schema_version":"1.0"},"canonical_sha256":"c21b7e112415d3e7b657b98f1898c420b83783f0193f69893061fcb7a1ec0405","source":{"kind":"arxiv","id":"1707.07769","version":2},"source_aliases":[{"alias_kind":"arxiv","alias_value":"1707.07769","created_at":"2026-05-18T00:33:16Z"},{"alias_kind":"arxiv_version","alias_value":"1707.07769v2","created_at":"2026-05-18T00:33:16Z"},{"alias_kind":"doi","alias_value":"10.48550/arxiv.1707.07769","created_at":"2026-05-18T00:33:16Z"},{"alias_kind":"pith_short_12","alias_value":"YINX4EJECXJ6","created_at":"2026-05-18T12:31:56Z"},{"alias_kind":"pith_short_16","alias_value":"YINX4EJECXJ6PNSX","created_at":"2026-05-18T12:31:56Z"},{"alias_kind":"pith_short_8","alias_value":"YINX4EJE","created_at":"2026-05-18T12:31:56Z"}],"events":[{"event_type":"record_created","subject_pith_number":"pith:2017:YINX4EJECXJ6PNSXXGHRRGGEEC","target":"record","payload":{"canonical_record":{"source":{"id":"1707.07769","kind":"arxiv","version":2},"metadata":{"license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"quant-ph","submitted_at":"2017-07-24T23:05:44Z","cross_cats_sorted":["cs.LG"],"title_canon_sha256":"dcb76eafa1761aea8111db2b1115bd0e357c710dab55d4149be901991ac03e27","abstract_canon_sha256":"ff1ef73438184d2dc323729388652b5fb043d6ebe46767546f95aa107ead92c5"},"schema_version":"1.0"},"canonical_sha256":"c21b7e112415d3e7b657b98f1898c420b83783f0193f69893061fcb7a1ec0405","receipt":{"kind":"pith_receipt","key_id":"pith-v1-2026-05","algorithm":"ed25519","signed_at":"2026-05-18T00:33:16.225253Z","signature_b64":"m5W9ak9QjLuHf3sCVv2AIcWfmMx4WWINMtKhbHGqSAYQNWVkk/cJrTdFGeSPmtyt/vU+KpdizhIg1ytlxip1Aw==","signed_message":"canonical_sha256_bytes","builder_version":"pith-number-builder-2026-05-17-v1","receipt_version":"0.3","canonical_sha256":"c21b7e112415d3e7b657b98f1898c420b83783f0193f69893061fcb7a1ec0405","last_reissued_at":"2026-05-18T00:33:16.224701Z","signature_status":"signed_v1","first_computed_at":"2026-05-18T00:33:16.224701Z","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54"},"source_kind":"arxiv","source_id":"1707.07769","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":"2026-05-18T00:33:16Z","supersedes":[],"prev_event":null,"signature":{"signature_status":"signed_v1","algorithm":"ed25519","key_id":"pith-v1-2026-05","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54","signature_b64":"Ssbx+JPzs1nVjJKRQcTQQkho01YQW8P6EATlf6sOvqof4jR8xTrzEhmmCNVHzy92eGhZ+NPWCD0OhbKkSlqHCw==","signed_message":"open_graph_event_sha256_bytes","signed_at":"2026-05-27T10:43:34.600883Z"},"content_sha256":"d3cdb8590ab6c86938362b3637521376b31ce43c9d71d502aedb8e3bff8f21b3","schema_version":"1.0","event_id":"sha256:d3cdb8590ab6c86938362b3637521376b31ce43c9d71d502aedb8e3bff8f21b3"},{"event_type":"graph_snapshot","subject_pith_number":"pith:2017:YINX4EJECXJ6PNSXXGHRRGGEEC","target":"graph","payload":{"graph_snapshot":{"paper":{"title":"Exact Identification of a Quantum Change Point","license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","headline":"","cross_cats":["cs.LG"],"primary_cat":"quant-ph","authors_text":"Gael Sent\\'is, John Calsamiglia, Ramon Munoz-Tapia","submitted_at":"2017-07-24T23:05:44Z","abstract_excerpt":"The detection of change points is a pivotal task in statistical analysis. In the quantum realm, it is a new primitive where one aims at identifying the point where a source that supposedly prepares a sequence of particles in identical quantum states starts preparing a mutated one. We obtain the optimal procedure to identify the change point with certainty---naturally at the price of having a certain probability of getting an inconclusive answer. We obtain the analytical form of the optimal probability of successful identification for any length of the particle sequence. We show that the condit"},"claims":{"count":0,"items":[],"snapshot_sha256":"258153158e38e3291e3d48162225fcdb2d5a3ed65a07baac614ab91432fd4f57"},"source":{"id":"1707.07769","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":""},"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":"2026-05-18T00:33:16Z","supersedes":[],"prev_event":null,"signature":{"signature_status":"signed_v1","algorithm":"ed25519","key_id":"pith-v1-2026-05","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54","signature_b64":"q29C5KWDCIYqX1cpZh9Ft7s4cuZn13gmD5uVZPZdyAFu1J9yweUdaFqbka1LJ1f45m/eG8bMmUYHCKofbIeiCw==","signed_message":"open_graph_event_sha256_bytes","signed_at":"2026-05-27T10:43:34.601262Z"},"content_sha256":"b150db16ee6e8306fda73b785d6b03022de6e59c403bee020224a51826b8cf51","schema_version":"1.0","event_id":"sha256:b150db16ee6e8306fda73b785d6b03022de6e59c403bee020224a51826b8cf51"}],"timestamp_proofs":[],"mirror_hints":[{"mirror_type":"https","name":"Pith Resolver","base_url":"https://pith.science","bundle_url":"https://pith.science/pith/YINX4EJECXJ6PNSXXGHRRGGEEC/bundle.json","state_url":"https://pith.science/pith/YINX4EJECXJ6PNSXXGHRRGGEEC/state.json","well_known_bundle_url":"https://pith.science/.well-known/pith/YINX4EJECXJ6PNSXXGHRRGGEEC/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":"2026-05-27T10:43:34Z","links":{"resolver":"https://pith.science/pith/YINX4EJECXJ6PNSXXGHRRGGEEC","bundle":"https://pith.science/pith/YINX4EJECXJ6PNSXXGHRRGGEEC/bundle.json","state":"https://pith.science/pith/YINX4EJECXJ6PNSXXGHRRGGEEC/state.json","well_known_bundle":"https://pith.science/.well-known/pith/YINX4EJECXJ6PNSXXGHRRGGEEC/bundle.json"},"state":{"state_type":"pith_open_graph_state","state_version":"1.0","pith_number":"pith:2017:YINX4EJECXJ6PNSXXGHRRGGEEC","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":"ff1ef73438184d2dc323729388652b5fb043d6ebe46767546f95aa107ead92c5","cross_cats_sorted":["cs.LG"],"license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"quant-ph","submitted_at":"2017-07-24T23:05:44Z","title_canon_sha256":"dcb76eafa1761aea8111db2b1115bd0e357c710dab55d4149be901991ac03e27"},"schema_version":"1.0","source":{"id":"1707.07769","kind":"arxiv","version":2}},"source_aliases":[{"alias_kind":"arxiv","alias_value":"1707.07769","created_at":"2026-05-18T00:33:16Z"},{"alias_kind":"arxiv_version","alias_value":"1707.07769v2","created_at":"2026-05-18T00:33:16Z"},{"alias_kind":"doi","alias_value":"10.48550/arxiv.1707.07769","created_at":"2026-05-18T00:33:16Z"},{"alias_kind":"pith_short_12","alias_value":"YINX4EJECXJ6","created_at":"2026-05-18T12:31:56Z"},{"alias_kind":"pith_short_16","alias_value":"YINX4EJECXJ6PNSX","created_at":"2026-05-18T12:31:56Z"},{"alias_kind":"pith_short_8","alias_value":"YINX4EJE","created_at":"2026-05-18T12:31:56Z"}],"graph_snapshots":[{"event_id":"sha256:b150db16ee6e8306fda73b785d6b03022de6e59c403bee020224a51826b8cf51","target":"graph","created_at":"2026-05-18T00:33:16Z","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":"The detection of change points is a pivotal task in statistical analysis. In the quantum realm, it is a new primitive where one aims at identifying the point where a source that supposedly prepares a sequence of particles in identical quantum states starts preparing a mutated one. We obtain the optimal procedure to identify the change point with certainty---naturally at the price of having a certain probability of getting an inconclusive answer. We obtain the analytical form of the optimal probability of successful identification for any length of the particle sequence. We show that the condit","authors_text":"Gael Sent\\'is, John Calsamiglia, Ramon Munoz-Tapia","cross_cats":["cs.LG"],"headline":"","license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"quant-ph","submitted_at":"2017-07-24T23:05:44Z","title":"Exact Identification of a Quantum Change Point"},"references":{"count":0,"internal_anchors":0,"resolved_work":0,"sample":[],"snapshot_sha256":"258153158e38e3291e3d48162225fcdb2d5a3ed65a07baac614ab91432fd4f57"},"source":{"id":"1707.07769","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:d3cdb8590ab6c86938362b3637521376b31ce43c9d71d502aedb8e3bff8f21b3","target":"record","created_at":"2026-05-18T00:33:16Z","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":"ff1ef73438184d2dc323729388652b5fb043d6ebe46767546f95aa107ead92c5","cross_cats_sorted":["cs.LG"],"license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"quant-ph","submitted_at":"2017-07-24T23:05:44Z","title_canon_sha256":"dcb76eafa1761aea8111db2b1115bd0e357c710dab55d4149be901991ac03e27"},"schema_version":"1.0","source":{"id":"1707.07769","kind":"arxiv","version":2}},"canonical_sha256":"c21b7e112415d3e7b657b98f1898c420b83783f0193f69893061fcb7a1ec0405","receipt":{"algorithm":"ed25519","builder_version":"pith-number-builder-2026-05-17-v1","canonical_sha256":"c21b7e112415d3e7b657b98f1898c420b83783f0193f69893061fcb7a1ec0405","first_computed_at":"2026-05-18T00:33:16.224701Z","key_id":"pith-v1-2026-05","kind":"pith_receipt","last_reissued_at":"2026-05-18T00:33:16.224701Z","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54","receipt_version":"0.3","signature_b64":"m5W9ak9QjLuHf3sCVv2AIcWfmMx4WWINMtKhbHGqSAYQNWVkk/cJrTdFGeSPmtyt/vU+KpdizhIg1ytlxip1Aw==","signature_status":"signed_v1","signed_at":"2026-05-18T00:33:16.225253Z","signed_message":"canonical_sha256_bytes"},"source_id":"1707.07769","source_kind":"arxiv","source_version":2}}},"equivocations":[],"invalid_events":[],"applied_event_ids":["sha256:d3cdb8590ab6c86938362b3637521376b31ce43c9d71d502aedb8e3bff8f21b3","sha256:b150db16ee6e8306fda73b785d6b03022de6e59c403bee020224a51826b8cf51"],"state_sha256":"bf5719e4e2c873a723978540f928f9dfc9e7f59eac64f18701df16654649b744"},"bundle_signature":{"signature_status":"signed_v1","algorithm":"ed25519","key_id":"pith-v1-2026-05","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54","signature_b64":"r60LS06uvpvn1pUafCYuuZcSuGwMGOKzTQHRA/m8ufG5//BzIXVuwQ5BmPw5Ci+bcNsxHfB7IT2HtwYwQEqmCQ==","signed_message":"bundle_sha256_bytes","signed_at":"2026-05-27T10:43:34.603928Z","bundle_sha256":"8fe2374e03ff16d15ccb518d801bce11b109f8257a0a7dba3bbe956b0a87c123"}}