{"bundle_type":"pith_open_graph_bundle","bundle_version":"1.0","pith_number":"pith:2020:YXHNQWNI3HL3ZZ7YFESGQONIII","short_pith_number":"pith:YXHNQWNI","canonical_record":{"source":{"id":"2001.10396","kind":"arxiv","version":3},"metadata":{"license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"cs.LG","submitted_at":"2020-01-28T15:09:21Z","cross_cats_sorted":["stat.ML"],"title_canon_sha256":"c05f3000cb7232a4aaf2734932d0565bd7066ca68ab650118a2372fade1ca165","abstract_canon_sha256":"93d1756bd445a8bb9ca6ae6e58a346405f0bab7bdbb150318c9cbc316bc1081c"},"schema_version":"1.0"},"canonical_sha256":"c5ced859a8d9d7bce7f829246839a8420b7aec371310609be7bd8afe6cfed02c","source":{"kind":"arxiv","id":"2001.10396","version":3},"source_aliases":[{"alias_kind":"arxiv","alias_value":"2001.10396","created_at":"2026-07-05T05:45:22Z"},{"alias_kind":"arxiv_version","alias_value":"2001.10396v3","created_at":"2026-07-05T05:45:22Z"},{"alias_kind":"doi","alias_value":"10.48550/arxiv.2001.10396","created_at":"2026-07-05T05:45:22Z"},{"alias_kind":"pith_short_12","alias_value":"YXHNQWNI3HL3","created_at":"2026-07-05T05:45:22Z"},{"alias_kind":"pith_short_16","alias_value":"YXHNQWNI3HL3ZZ7Y","created_at":"2026-07-05T05:45:22Z"},{"alias_kind":"pith_short_8","alias_value":"YXHNQWNI","created_at":"2026-07-05T05:45:22Z"}],"events":[{"event_type":"record_created","subject_pith_number":"pith:2020:YXHNQWNI3HL3ZZ7YFESGQONIII","target":"record","payload":{"canonical_record":{"source":{"id":"2001.10396","kind":"arxiv","version":3},"metadata":{"license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"cs.LG","submitted_at":"2020-01-28T15:09:21Z","cross_cats_sorted":["stat.ML"],"title_canon_sha256":"c05f3000cb7232a4aaf2734932d0565bd7066ca68ab650118a2372fade1ca165","abstract_canon_sha256":"93d1756bd445a8bb9ca6ae6e58a346405f0bab7bdbb150318c9cbc316bc1081c"},"schema_version":"1.0"},"canonical_sha256":"c5ced859a8d9d7bce7f829246839a8420b7aec371310609be7bd8afe6cfed02c","receipt":{"kind":"pith_receipt","key_id":"pith-v1-2026-05","algorithm":"ed25519","signed_at":"2026-07-05T05:45:22.298705Z","signature_b64":"IW1xrDlXpzR20eO1ejVvWfAO9862UYxlc9BgUr+G0UWHIT+9m5neSh0SYzwAVxd3fMnnqzJXk+TkVJOmIuFXBw==","signed_message":"canonical_sha256_bytes","builder_version":"pith-number-builder-2026-05-17-v1","receipt_version":"0.3","canonical_sha256":"c5ced859a8d9d7bce7f829246839a8420b7aec371310609be7bd8afe6cfed02c","last_reissued_at":"2026-07-05T05:45:22.298219Z","signature_status":"signed_v1","first_computed_at":"2026-07-05T05:45:22.298219Z","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54"},"source_kind":"arxiv","source_id":"2001.10396","source_version":3,"attestation_state":"computed"},"signer":{"signer_id":"pith.science","signer_type":"pith_registry","key_id":"pith-v1-2026-05","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54"},"created_at":"2026-07-05T05:45:22Z","supersedes":[],"prev_event":null,"signature":{"signature_status":"signed_v1","algorithm":"ed25519","key_id":"pith-v1-2026-05","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54","signature_b64":"XTxfmzzQa9lNoBmCzhSaajIgPcNQMBfiUx493osvq4ps0JetL8siZnYCzfBDHKaNNfNe99dBBWRY3f+cRBDTBQ==","signed_message":"open_graph_event_sha256_bytes","signed_at":"2026-07-06T08:51:57.850311Z"},"content_sha256":"e3ce403411ab19da6bedeada0fa714e54d1e5281f31d7a77ed55828af6d586ef","schema_version":"1.0","event_id":"sha256:e3ce403411ab19da6bedeada0fa714e54d1e5281f31d7a77ed55828af6d586ef"},{"event_type":"graph_snapshot","subject_pith_number":"pith:2020:YXHNQWNI3HL3ZZ7YFESGQONIII","target":"graph","payload":{"graph_snapshot":{"paper":{"title":"Bandit optimisation of functions in the Mat\\'ern kernel RKHS","license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","headline":"","cross_cats":["stat.ML"],"primary_cat":"cs.LG","authors_text":"David Janz, David R. Burt, Javier Gonz\\'alez","submitted_at":"2020-01-28T15:09:21Z","abstract_excerpt":"We consider the problem of optimising functions in the reproducing kernel Hilbert space (RKHS) of a Mat\\'ern kernel with smoothness parameter $\\nu$ over the domain $[0,1]^d$ under noisy bandit feedback. Our contribution, the $\\pi$-GP-UCB algorithm, is the first practical approach with guaranteed sublinear regret for all $\\nu>1$ and $d \\geq 1$. Empirical validation suggests better performance and drastically improved computational scalablity compared with its predecessor, Improved GP-UCB."},"claims":{"count":0,"items":[],"snapshot_sha256":"258153158e38e3291e3d48162225fcdb2d5a3ed65a07baac614ab91432fd4f57"},"source":{"id":"2001.10396","kind":"arxiv","version":3},"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/2001.10396/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":"2026-07-05T05:45:22Z","supersedes":[],"prev_event":null,"signature":{"signature_status":"signed_v1","algorithm":"ed25519","key_id":"pith-v1-2026-05","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54","signature_b64":"peZ4FBBxKHcaD+DLsta+9c6L9rrh0QioAg3uAAS0vV4C0A4HHFvYlryhXWeRbB2yU3ErG6kp/7CXddT37npuAA==","signed_message":"open_graph_event_sha256_bytes","signed_at":"2026-07-06T08:51:57.850703Z"},"content_sha256":"96432ed6f396e46b78c914d172fd81eed82639dc2377b02cb8571df618ad150b","schema_version":"1.0","event_id":"sha256:96432ed6f396e46b78c914d172fd81eed82639dc2377b02cb8571df618ad150b"}],"timestamp_proofs":[],"mirror_hints":[{"mirror_type":"https","name":"Pith Resolver","base_url":"https://pith.science","bundle_url":"https://pith.science/pith/YXHNQWNI3HL3ZZ7YFESGQONIII/bundle.json","state_url":"https://pith.science/pith/YXHNQWNI3HL3ZZ7YFESGQONIII/state.json","well_known_bundle_url":"https://pith.science/.well-known/pith/YXHNQWNI3HL3ZZ7YFESGQONIII/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":"2026-07-06T08:51:57Z","links":{"resolver":"https://pith.science/pith/YXHNQWNI3HL3ZZ7YFESGQONIII","bundle":"https://pith.science/pith/YXHNQWNI3HL3ZZ7YFESGQONIII/bundle.json","state":"https://pith.science/pith/YXHNQWNI3HL3ZZ7YFESGQONIII/state.json","well_known_bundle":"https://pith.science/.well-known/pith/YXHNQWNI3HL3ZZ7YFESGQONIII/bundle.json"},"state":{"state_type":"pith_open_graph_state","state_version":"1.0","pith_number":"pith:2020:YXHNQWNI3HL3ZZ7YFESGQONIII","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":"93d1756bd445a8bb9ca6ae6e58a346405f0bab7bdbb150318c9cbc316bc1081c","cross_cats_sorted":["stat.ML"],"license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"cs.LG","submitted_at":"2020-01-28T15:09:21Z","title_canon_sha256":"c05f3000cb7232a4aaf2734932d0565bd7066ca68ab650118a2372fade1ca165"},"schema_version":"1.0","source":{"id":"2001.10396","kind":"arxiv","version":3}},"source_aliases":[{"alias_kind":"arxiv","alias_value":"2001.10396","created_at":"2026-07-05T05:45:22Z"},{"alias_kind":"arxiv_version","alias_value":"2001.10396v3","created_at":"2026-07-05T05:45:22Z"},{"alias_kind":"doi","alias_value":"10.48550/arxiv.2001.10396","created_at":"2026-07-05T05:45:22Z"},{"alias_kind":"pith_short_12","alias_value":"YXHNQWNI3HL3","created_at":"2026-07-05T05:45:22Z"},{"alias_kind":"pith_short_16","alias_value":"YXHNQWNI3HL3ZZ7Y","created_at":"2026-07-05T05:45:22Z"},{"alias_kind":"pith_short_8","alias_value":"YXHNQWNI","created_at":"2026-07-05T05:45:22Z"}],"graph_snapshots":[{"event_id":"sha256:96432ed6f396e46b78c914d172fd81eed82639dc2377b02cb8571df618ad150b","target":"graph","created_at":"2026-07-05T05:45:22Z","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/2001.10396/integrity.json","findings":[],"snapshot_sha256":"c28c3603d3b5d939e8dc4c7e95fa8dfce3d595e45f758748cecf8e644a296938","summary":{"advisory":0,"by_detector":{},"critical":0,"informational":0}},"paper":{"abstract_excerpt":"We consider the problem of optimising functions in the reproducing kernel Hilbert space (RKHS) of a Mat\\'ern kernel with smoothness parameter $\\nu$ over the domain $[0,1]^d$ under noisy bandit feedback. Our contribution, the $\\pi$-GP-UCB algorithm, is the first practical approach with guaranteed sublinear regret for all $\\nu>1$ and $d \\geq 1$. Empirical validation suggests better performance and drastically improved computational scalablity compared with its predecessor, Improved GP-UCB.","authors_text":"David Janz, David R. Burt, Javier Gonz\\'alez","cross_cats":["stat.ML"],"headline":"","license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"cs.LG","submitted_at":"2020-01-28T15:09:21Z","title":"Bandit optimisation of functions in the Mat\\'ern kernel RKHS"},"references":{"count":0,"internal_anchors":0,"resolved_work":0,"sample":[],"snapshot_sha256":"258153158e38e3291e3d48162225fcdb2d5a3ed65a07baac614ab91432fd4f57"},"source":{"id":"2001.10396","kind":"arxiv","version":3},"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:e3ce403411ab19da6bedeada0fa714e54d1e5281f31d7a77ed55828af6d586ef","target":"record","created_at":"2026-07-05T05:45:22Z","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":"93d1756bd445a8bb9ca6ae6e58a346405f0bab7bdbb150318c9cbc316bc1081c","cross_cats_sorted":["stat.ML"],"license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"cs.LG","submitted_at":"2020-01-28T15:09:21Z","title_canon_sha256":"c05f3000cb7232a4aaf2734932d0565bd7066ca68ab650118a2372fade1ca165"},"schema_version":"1.0","source":{"id":"2001.10396","kind":"arxiv","version":3}},"canonical_sha256":"c5ced859a8d9d7bce7f829246839a8420b7aec371310609be7bd8afe6cfed02c","receipt":{"algorithm":"ed25519","builder_version":"pith-number-builder-2026-05-17-v1","canonical_sha256":"c5ced859a8d9d7bce7f829246839a8420b7aec371310609be7bd8afe6cfed02c","first_computed_at":"2026-07-05T05:45:22.298219Z","key_id":"pith-v1-2026-05","kind":"pith_receipt","last_reissued_at":"2026-07-05T05:45:22.298219Z","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54","receipt_version":"0.3","signature_b64":"IW1xrDlXpzR20eO1ejVvWfAO9862UYxlc9BgUr+G0UWHIT+9m5neSh0SYzwAVxd3fMnnqzJXk+TkVJOmIuFXBw==","signature_status":"signed_v1","signed_at":"2026-07-05T05:45:22.298705Z","signed_message":"canonical_sha256_bytes"},"source_id":"2001.10396","source_kind":"arxiv","source_version":3}}},"equivocations":[],"invalid_events":[],"applied_event_ids":["sha256:e3ce403411ab19da6bedeada0fa714e54d1e5281f31d7a77ed55828af6d586ef","sha256:96432ed6f396e46b78c914d172fd81eed82639dc2377b02cb8571df618ad150b"],"state_sha256":"7e5edb978780b80730bfbe0d68be10d89d998cd2e8178a590420340650281afd"},"bundle_signature":{"signature_status":"signed_v1","algorithm":"ed25519","key_id":"pith-v1-2026-05","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54","signature_b64":"H/UCl9btG80iEEd+v8js/wxhSbA3iING0/6skW4R6/DdYJCKZzwv+ZWP8pjhIDpdryMG3G0s9zf4TAa0hxoFAQ==","signed_message":"bundle_sha256_bytes","signed_at":"2026-07-06T08:51:57.852778Z","bundle_sha256":"d7b7f22d3c26aa273104f40d04b3b7df09e98477e306aad0340ee9ed9ee23b33"}}