{"bundle_type":"pith_open_graph_bundle","bundle_version":"1.0","pith_number":"pith:2019:FEBKQMZYDPUDBCKFXTZZA6JFOK","short_pith_number":"pith:FEBKQMZY","canonical_record":{"source":{"id":"1907.07103","kind":"arxiv","version":1},"metadata":{"license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"cs.IT","submitted_at":"2019-07-15T16:18:09Z","cross_cats_sorted":["cs.LG","eess.SP","math.IT","math.PR"],"title_canon_sha256":"e177caac06d86d67987f18ae52d5661d20bd5ba569be7a47a1932808f00dee2c","abstract_canon_sha256":"0ed315d41ea7f29a4e8ddb3e980b45d27358f33d2a413fa226a59106190689ce"},"schema_version":"1.0"},"canonical_sha256":"2902a833381be8308945bcf390792572ac41ca48989c257b6f03e38afe1282e8","source":{"kind":"arxiv","id":"1907.07103","version":1},"source_aliases":[{"alias_kind":"arxiv","alias_value":"1907.07103","created_at":"2026-05-17T23:40:28Z"},{"alias_kind":"arxiv_version","alias_value":"1907.07103v1","created_at":"2026-05-17T23:40:28Z"},{"alias_kind":"doi","alias_value":"10.48550/arxiv.1907.07103","created_at":"2026-05-17T23:40:28Z"},{"alias_kind":"pith_short_12","alias_value":"FEBKQMZYDPUD","created_at":"2026-05-18T12:33:15Z"},{"alias_kind":"pith_short_16","alias_value":"FEBKQMZYDPUDBCKF","created_at":"2026-05-18T12:33:15Z"},{"alias_kind":"pith_short_8","alias_value":"FEBKQMZY","created_at":"2026-05-18T12:33:15Z"}],"events":[{"event_type":"record_created","subject_pith_number":"pith:2019:FEBKQMZYDPUDBCKFXTZZA6JFOK","target":"record","payload":{"canonical_record":{"source":{"id":"1907.07103","kind":"arxiv","version":1},"metadata":{"license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"cs.IT","submitted_at":"2019-07-15T16:18:09Z","cross_cats_sorted":["cs.LG","eess.SP","math.IT","math.PR"],"title_canon_sha256":"e177caac06d86d67987f18ae52d5661d20bd5ba569be7a47a1932808f00dee2c","abstract_canon_sha256":"0ed315d41ea7f29a4e8ddb3e980b45d27358f33d2a413fa226a59106190689ce"},"schema_version":"1.0"},"canonical_sha256":"2902a833381be8308945bcf390792572ac41ca48989c257b6f03e38afe1282e8","receipt":{"kind":"pith_receipt","key_id":"pith-v1-2026-05","algorithm":"ed25519","signed_at":"2026-05-17T23:40:28.082258Z","signature_b64":"KHhUE3C5woP7qLRVOy/xj6NXqKhWEs174yzE2QhtbuNkgDrLphhc/I7GMV7s4CYd0nPEmxtoJ7ojs4y4cNMGBQ==","signed_message":"canonical_sha256_bytes","builder_version":"pith-number-builder-2026-05-17-v1","receipt_version":"0.3","canonical_sha256":"2902a833381be8308945bcf390792572ac41ca48989c257b6f03e38afe1282e8","last_reissued_at":"2026-05-17T23:40:28.081636Z","signature_status":"signed_v1","first_computed_at":"2026-05-17T23:40:28.081636Z","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54"},"source_kind":"arxiv","source_id":"1907.07103","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":"2026-05-17T23:40:28Z","supersedes":[],"prev_event":null,"signature":{"signature_status":"signed_v1","algorithm":"ed25519","key_id":"pith-v1-2026-05","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54","signature_b64":"4IvvLKiyznA/ny+EuiTSwmu3FjFkdppedhcFSdL6uvWip21MBN5J4vGgTiSq5rw+fAFXj53RHuiFXmJcEN5UCQ==","signed_message":"open_graph_event_sha256_bytes","signed_at":"2026-05-28T00:59:27.895522Z"},"content_sha256":"e200cb96f288c85f1b54af9e83988ff9822d894a01a9cc4890fd83e487f4103e","schema_version":"1.0","event_id":"sha256:e200cb96f288c85f1b54af9e83988ff9822d894a01a9cc4890fd83e487f4103e"},{"event_type":"graph_snapshot","subject_pith_number":"pith:2019:FEBKQMZYDPUDBCKFXTZZA6JFOK","target":"graph","payload":{"graph_snapshot":{"paper":{"title":"Concentration of the matrix-valued minimum mean-square error in optimal Bayesian inference","license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","headline":"","cross_cats":["cs.LG","eess.SP","math.IT","math.PR"],"primary_cat":"cs.IT","authors_text":"Jean Barbier","submitted_at":"2019-07-15T16:18:09Z","abstract_excerpt":"We consider Bayesian inference of signals with vector-valued entries. Extending concentration techniques from the mathematical physics of spin glasses, we show that the matrix-valued minimum mean-square error concentrates when the size of the problem increases. Such results are often crucial for proving single-letter formulas for the mutual information when they exist. Our proof is valid in the optimal Bayesian inference setting, meaning that it relies on the assumption that the model and all its hyper-parameters are known. Examples of inference and learning problems covered by our results are"},"claims":{"count":0,"items":[],"snapshot_sha256":"258153158e38e3291e3d48162225fcdb2d5a3ed65a07baac614ab91432fd4f57"},"source":{"id":"1907.07103","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":""},"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":"2026-05-17T23:40:28Z","supersedes":[],"prev_event":null,"signature":{"signature_status":"signed_v1","algorithm":"ed25519","key_id":"pith-v1-2026-05","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54","signature_b64":"Pv76Qvd6qJ8X6N4UjyqJq2TWdvlrrfZPn3O7+Z2cxbNvpji8YgCriR0l9rH2VmItMqxGO6emx49iqbf+TqOzDw==","signed_message":"open_graph_event_sha256_bytes","signed_at":"2026-05-28T00:59:27.895876Z"},"content_sha256":"dbafe77f66d6045962320e7e0a817cb7aa538148be92a7fc8e640dfa010069a0","schema_version":"1.0","event_id":"sha256:dbafe77f66d6045962320e7e0a817cb7aa538148be92a7fc8e640dfa010069a0"}],"timestamp_proofs":[],"mirror_hints":[{"mirror_type":"https","name":"Pith Resolver","base_url":"https://pith.science","bundle_url":"https://pith.science/pith/FEBKQMZYDPUDBCKFXTZZA6JFOK/bundle.json","state_url":"https://pith.science/pith/FEBKQMZYDPUDBCKFXTZZA6JFOK/state.json","well_known_bundle_url":"https://pith.science/.well-known/pith/FEBKQMZYDPUDBCKFXTZZA6JFOK/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":"2026-05-28T00:59:27Z","links":{"resolver":"https://pith.science/pith/FEBKQMZYDPUDBCKFXTZZA6JFOK","bundle":"https://pith.science/pith/FEBKQMZYDPUDBCKFXTZZA6JFOK/bundle.json","state":"https://pith.science/pith/FEBKQMZYDPUDBCKFXTZZA6JFOK/state.json","well_known_bundle":"https://pith.science/.well-known/pith/FEBKQMZYDPUDBCKFXTZZA6JFOK/bundle.json"},"state":{"state_type":"pith_open_graph_state","state_version":"1.0","pith_number":"pith:2019:FEBKQMZYDPUDBCKFXTZZA6JFOK","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":"0ed315d41ea7f29a4e8ddb3e980b45d27358f33d2a413fa226a59106190689ce","cross_cats_sorted":["cs.LG","eess.SP","math.IT","math.PR"],"license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"cs.IT","submitted_at":"2019-07-15T16:18:09Z","title_canon_sha256":"e177caac06d86d67987f18ae52d5661d20bd5ba569be7a47a1932808f00dee2c"},"schema_version":"1.0","source":{"id":"1907.07103","kind":"arxiv","version":1}},"source_aliases":[{"alias_kind":"arxiv","alias_value":"1907.07103","created_at":"2026-05-17T23:40:28Z"},{"alias_kind":"arxiv_version","alias_value":"1907.07103v1","created_at":"2026-05-17T23:40:28Z"},{"alias_kind":"doi","alias_value":"10.48550/arxiv.1907.07103","created_at":"2026-05-17T23:40:28Z"},{"alias_kind":"pith_short_12","alias_value":"FEBKQMZYDPUD","created_at":"2026-05-18T12:33:15Z"},{"alias_kind":"pith_short_16","alias_value":"FEBKQMZYDPUDBCKF","created_at":"2026-05-18T12:33:15Z"},{"alias_kind":"pith_short_8","alias_value":"FEBKQMZY","created_at":"2026-05-18T12:33:15Z"}],"graph_snapshots":[{"event_id":"sha256:dbafe77f66d6045962320e7e0a817cb7aa538148be92a7fc8e640dfa010069a0","target":"graph","created_at":"2026-05-17T23:40:28Z","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":"We consider Bayesian inference of signals with vector-valued entries. Extending concentration techniques from the mathematical physics of spin glasses, we show that the matrix-valued minimum mean-square error concentrates when the size of the problem increases. Such results are often crucial for proving single-letter formulas for the mutual information when they exist. Our proof is valid in the optimal Bayesian inference setting, meaning that it relies on the assumption that the model and all its hyper-parameters are known. Examples of inference and learning problems covered by our results are","authors_text":"Jean Barbier","cross_cats":["cs.LG","eess.SP","math.IT","math.PR"],"headline":"","license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"cs.IT","submitted_at":"2019-07-15T16:18:09Z","title":"Concentration of the matrix-valued minimum mean-square error in optimal Bayesian inference"},"references":{"count":0,"internal_anchors":0,"resolved_work":0,"sample":[],"snapshot_sha256":"258153158e38e3291e3d48162225fcdb2d5a3ed65a07baac614ab91432fd4f57"},"source":{"id":"1907.07103","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:e200cb96f288c85f1b54af9e83988ff9822d894a01a9cc4890fd83e487f4103e","target":"record","created_at":"2026-05-17T23:40:28Z","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":"0ed315d41ea7f29a4e8ddb3e980b45d27358f33d2a413fa226a59106190689ce","cross_cats_sorted":["cs.LG","eess.SP","math.IT","math.PR"],"license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"cs.IT","submitted_at":"2019-07-15T16:18:09Z","title_canon_sha256":"e177caac06d86d67987f18ae52d5661d20bd5ba569be7a47a1932808f00dee2c"},"schema_version":"1.0","source":{"id":"1907.07103","kind":"arxiv","version":1}},"canonical_sha256":"2902a833381be8308945bcf390792572ac41ca48989c257b6f03e38afe1282e8","receipt":{"algorithm":"ed25519","builder_version":"pith-number-builder-2026-05-17-v1","canonical_sha256":"2902a833381be8308945bcf390792572ac41ca48989c257b6f03e38afe1282e8","first_computed_at":"2026-05-17T23:40:28.081636Z","key_id":"pith-v1-2026-05","kind":"pith_receipt","last_reissued_at":"2026-05-17T23:40:28.081636Z","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54","receipt_version":"0.3","signature_b64":"KHhUE3C5woP7qLRVOy/xj6NXqKhWEs174yzE2QhtbuNkgDrLphhc/I7GMV7s4CYd0nPEmxtoJ7ojs4y4cNMGBQ==","signature_status":"signed_v1","signed_at":"2026-05-17T23:40:28.082258Z","signed_message":"canonical_sha256_bytes"},"source_id":"1907.07103","source_kind":"arxiv","source_version":1}}},"equivocations":[],"invalid_events":[],"applied_event_ids":["sha256:e200cb96f288c85f1b54af9e83988ff9822d894a01a9cc4890fd83e487f4103e","sha256:dbafe77f66d6045962320e7e0a817cb7aa538148be92a7fc8e640dfa010069a0"],"state_sha256":"ab7360d1e043e77b8c874ddb913dc197d3ad400a15b325f83c15819f6793af58"},"bundle_signature":{"signature_status":"signed_v1","algorithm":"ed25519","key_id":"pith-v1-2026-05","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54","signature_b64":"Rm4ORekmqQ2bZIk10rWWYVlcFFw+vQmAEkyC6wBwYzW3F1mQ3T1BAAxd2GWD+4maM22EaOmrrTia4LKjpNwmBQ==","signed_message":"bundle_sha256_bytes","signed_at":"2026-05-28T00:59:27.897939Z","bundle_sha256":"cb74443bcf2c48dccdf46715234509dee4a4c1bc766999ba180eba6faca55a76"}}