{"bundle_type":"pith_open_graph_bundle","bundle_version":"1.0","pith_number":"pith:2013:QUVA7T3FE76HEPI4JIMESBRF2I","short_pith_number":"pith:QUVA7T3F","canonical_record":{"source":{"id":"1307.5231","kind":"arxiv","version":2},"metadata":{"license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"stat.ME","submitted_at":"2013-07-19T14:32:46Z","cross_cats_sorted":["math.ST","stat.TH"],"title_canon_sha256":"2a3917db75cb3bfda561fb92fa6f9493a2d30a92cc9cf3b9cb9d0977b5da40b5","abstract_canon_sha256":"fa0fa55eb7fd190cca0d4b336e8d7b7456dcd36437a49f6de30a95087dd03f9d"},"schema_version":"1.0"},"canonical_sha256":"852a0fcf6527fc723d1c4a18490625d203671244fbf32891a19b8e1d51337be2","source":{"kind":"arxiv","id":"1307.5231","version":2},"source_aliases":[{"alias_kind":"arxiv","alias_value":"1307.5231","created_at":"2026-05-18T02:47:07Z"},{"alias_kind":"arxiv_version","alias_value":"1307.5231v2","created_at":"2026-05-18T02:47:07Z"},{"alias_kind":"doi","alias_value":"10.48550/arxiv.1307.5231","created_at":"2026-05-18T02:47:07Z"},{"alias_kind":"pith_short_12","alias_value":"QUVA7T3FE76H","created_at":"2026-05-18T12:27:57Z"},{"alias_kind":"pith_short_16","alias_value":"QUVA7T3FE76HEPI4","created_at":"2026-05-18T12:27:57Z"},{"alias_kind":"pith_short_8","alias_value":"QUVA7T3F","created_at":"2026-05-18T12:27:57Z"}],"events":[{"event_type":"record_created","subject_pith_number":"pith:2013:QUVA7T3FE76HEPI4JIMESBRF2I","target":"record","payload":{"canonical_record":{"source":{"id":"1307.5231","kind":"arxiv","version":2},"metadata":{"license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"stat.ME","submitted_at":"2013-07-19T14:32:46Z","cross_cats_sorted":["math.ST","stat.TH"],"title_canon_sha256":"2a3917db75cb3bfda561fb92fa6f9493a2d30a92cc9cf3b9cb9d0977b5da40b5","abstract_canon_sha256":"fa0fa55eb7fd190cca0d4b336e8d7b7456dcd36437a49f6de30a95087dd03f9d"},"schema_version":"1.0"},"canonical_sha256":"852a0fcf6527fc723d1c4a18490625d203671244fbf32891a19b8e1d51337be2","receipt":{"kind":"pith_receipt","key_id":"pith-v1-2026-05","algorithm":"ed25519","signed_at":"2026-05-18T02:47:07.798302Z","signature_b64":"6ezmbPhY4W32My4Oo8DvTUYtLAqWkinqfsHy9gruQ4lDiWLUJ0kEcXZwW3xR+ljiMjg3zCMuOXD9Zmve5nQKAA==","signed_message":"canonical_sha256_bytes","builder_version":"pith-number-builder-2026-05-17-v1","receipt_version":"0.3","canonical_sha256":"852a0fcf6527fc723d1c4a18490625d203671244fbf32891a19b8e1d51337be2","last_reissued_at":"2026-05-18T02:47:07.797914Z","signature_status":"signed_v1","first_computed_at":"2026-05-18T02:47:07.797914Z","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54"},"source_kind":"arxiv","source_id":"1307.5231","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":"2026-05-18T02:47:07Z","supersedes":[],"prev_event":null,"signature":{"signature_status":"signed_v1","algorithm":"ed25519","key_id":"pith-v1-2026-05","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54","signature_b64":"PnmJqN8bRYsCbWDBkqSmayvVMwUMXPN0I6maqBBtkT+pj+iPUMkLPASeNQK3eCQbaYTiPPbCiEExKadDXzkAAg==","signed_message":"open_graph_event_sha256_bytes","signed_at":"2026-06-12T10:13:44.519751Z"},"content_sha256":"813f6e55b1594252a21593d2a683fa1a981f99b66c74373d628e415c91bf9807","schema_version":"1.0","event_id":"sha256:813f6e55b1594252a21593d2a683fa1a981f99b66c74373d628e415c91bf9807"},{"event_type":"graph_snapshot","subject_pith_number":"pith:2013:QUVA7T3FE76HEPI4JIMESBRF2I","target":"graph","payload":{"graph_snapshot":{"paper":{"title":"Hierarchical sparsity priors for regression models","license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","headline":"","cross_cats":["math.ST","stat.TH"],"primary_cat":"stat.ME","authors_text":"Jim E. Griffin, Philip J. Brown","submitted_at":"2013-07-19T14:32:46Z","abstract_excerpt":"We focus on the increasingly important area of sparse regression problems where there are many variables and the effects of a large subset of these are negligible. This paper describes the construction of hierarchical prior distributions when the effects are considered related. These priors allow dependence between the regression coefficients and encourage related shrinkage towards zero of different regression coefficients. The properties of these priors are discussed and applications to linear models with interactions and generalized additive models are used as illustrations. Ideas of heredit"},"claims":{"count":0,"items":[],"snapshot_sha256":"258153158e38e3291e3d48162225fcdb2d5a3ed65a07baac614ab91432fd4f57"},"source":{"id":"1307.5231","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":"2026-05-18T02:47:07Z","supersedes":[],"prev_event":null,"signature":{"signature_status":"signed_v1","algorithm":"ed25519","key_id":"pith-v1-2026-05","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54","signature_b64":"n/4y+IaNhfoBdEgS8dSw77G/umIjqXiHKwmbk+ECLdKQptgbjBDNseRwt+tui3ftLvMphwoRfMNz7mTI4lW9Dg==","signed_message":"open_graph_event_sha256_bytes","signed_at":"2026-06-12T10:13:44.520098Z"},"content_sha256":"33109e3170f9b29a99f553aa5eb4c3c2cf714020c3296e6be74c5fc0d902e459","schema_version":"1.0","event_id":"sha256:33109e3170f9b29a99f553aa5eb4c3c2cf714020c3296e6be74c5fc0d902e459"}],"timestamp_proofs":[],"mirror_hints":[{"mirror_type":"https","name":"Pith Resolver","base_url":"https://pith.science","bundle_url":"https://pith.science/pith/QUVA7T3FE76HEPI4JIMESBRF2I/bundle.json","state_url":"https://pith.science/pith/QUVA7T3FE76HEPI4JIMESBRF2I/state.json","well_known_bundle_url":"https://pith.science/.well-known/pith/QUVA7T3FE76HEPI4JIMESBRF2I/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":"2026-06-12T10:13:44Z","links":{"resolver":"https://pith.science/pith/QUVA7T3FE76HEPI4JIMESBRF2I","bundle":"https://pith.science/pith/QUVA7T3FE76HEPI4JIMESBRF2I/bundle.json","state":"https://pith.science/pith/QUVA7T3FE76HEPI4JIMESBRF2I/state.json","well_known_bundle":"https://pith.science/.well-known/pith/QUVA7T3FE76HEPI4JIMESBRF2I/bundle.json"},"state":{"state_type":"pith_open_graph_state","state_version":"1.0","pith_number":"pith:2013:QUVA7T3FE76HEPI4JIMESBRF2I","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":"fa0fa55eb7fd190cca0d4b336e8d7b7456dcd36437a49f6de30a95087dd03f9d","cross_cats_sorted":["math.ST","stat.TH"],"license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"stat.ME","submitted_at":"2013-07-19T14:32:46Z","title_canon_sha256":"2a3917db75cb3bfda561fb92fa6f9493a2d30a92cc9cf3b9cb9d0977b5da40b5"},"schema_version":"1.0","source":{"id":"1307.5231","kind":"arxiv","version":2}},"source_aliases":[{"alias_kind":"arxiv","alias_value":"1307.5231","created_at":"2026-05-18T02:47:07Z"},{"alias_kind":"arxiv_version","alias_value":"1307.5231v2","created_at":"2026-05-18T02:47:07Z"},{"alias_kind":"doi","alias_value":"10.48550/arxiv.1307.5231","created_at":"2026-05-18T02:47:07Z"},{"alias_kind":"pith_short_12","alias_value":"QUVA7T3FE76H","created_at":"2026-05-18T12:27:57Z"},{"alias_kind":"pith_short_16","alias_value":"QUVA7T3FE76HEPI4","created_at":"2026-05-18T12:27:57Z"},{"alias_kind":"pith_short_8","alias_value":"QUVA7T3F","created_at":"2026-05-18T12:27:57Z"}],"graph_snapshots":[{"event_id":"sha256:33109e3170f9b29a99f553aa5eb4c3c2cf714020c3296e6be74c5fc0d902e459","target":"graph","created_at":"2026-05-18T02:47:07Z","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 focus on the increasingly important area of sparse regression problems where there are many variables and the effects of a large subset of these are negligible. This paper describes the construction of hierarchical prior distributions when the effects are considered related. These priors allow dependence between the regression coefficients and encourage related shrinkage towards zero of different regression coefficients. The properties of these priors are discussed and applications to linear models with interactions and generalized additive models are used as illustrations. Ideas of heredit","authors_text":"Jim E. Griffin, Philip J. Brown","cross_cats":["math.ST","stat.TH"],"headline":"","license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"stat.ME","submitted_at":"2013-07-19T14:32:46Z","title":"Hierarchical sparsity priors for regression models"},"references":{"count":0,"internal_anchors":0,"resolved_work":0,"sample":[],"snapshot_sha256":"258153158e38e3291e3d48162225fcdb2d5a3ed65a07baac614ab91432fd4f57"},"source":{"id":"1307.5231","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":"sha256:813f6e55b1594252a21593d2a683fa1a981f99b66c74373d628e415c91bf9807","target":"record","created_at":"2026-05-18T02:47:07Z","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":"fa0fa55eb7fd190cca0d4b336e8d7b7456dcd36437a49f6de30a95087dd03f9d","cross_cats_sorted":["math.ST","stat.TH"],"license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"stat.ME","submitted_at":"2013-07-19T14:32:46Z","title_canon_sha256":"2a3917db75cb3bfda561fb92fa6f9493a2d30a92cc9cf3b9cb9d0977b5da40b5"},"schema_version":"1.0","source":{"id":"1307.5231","kind":"arxiv","version":2}},"canonical_sha256":"852a0fcf6527fc723d1c4a18490625d203671244fbf32891a19b8e1d51337be2","receipt":{"algorithm":"ed25519","builder_version":"pith-number-builder-2026-05-17-v1","canonical_sha256":"852a0fcf6527fc723d1c4a18490625d203671244fbf32891a19b8e1d51337be2","first_computed_at":"2026-05-18T02:47:07.797914Z","key_id":"pith-v1-2026-05","kind":"pith_receipt","last_reissued_at":"2026-05-18T02:47:07.797914Z","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54","receipt_version":"0.3","signature_b64":"6ezmbPhY4W32My4Oo8DvTUYtLAqWkinqfsHy9gruQ4lDiWLUJ0kEcXZwW3xR+ljiMjg3zCMuOXD9Zmve5nQKAA==","signature_status":"signed_v1","signed_at":"2026-05-18T02:47:07.798302Z","signed_message":"canonical_sha256_bytes"},"source_id":"1307.5231","source_kind":"arxiv","source_version":2}}},"equivocations":[],"invalid_events":[],"applied_event_ids":["sha256:813f6e55b1594252a21593d2a683fa1a981f99b66c74373d628e415c91bf9807","sha256:33109e3170f9b29a99f553aa5eb4c3c2cf714020c3296e6be74c5fc0d902e459"],"state_sha256":"b25c5286ba30348a8654369debeaf8ac352fdc6c998328a9026bd34504311b2d"},"bundle_signature":{"signature_status":"signed_v1","algorithm":"ed25519","key_id":"pith-v1-2026-05","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54","signature_b64":"SrBo7nTeKGTORIaEgi/Zayl36rhv/qCfYer5mVX9vXyJ4Pv43XEM9gIKsQ9p133KMAZVbyqi/vrtzuWKW+YvDQ==","signed_message":"bundle_sha256_bytes","signed_at":"2026-06-12T10:13:44.522042Z","bundle_sha256":"897151429b01741ea35ef5948bdbd36a7f8f7e365140500570c8b45ff3faa904"}}