{"bundle_type":"pith_open_graph_bundle","bundle_version":"1.0","pith_number":"pith:2017:FBX4C6XIP7PBHIK7SQAG47IOBH","short_pith_number":"pith:FBX4C6XI","canonical_record":{"source":{"id":"1708.09762","kind":"arxiv","version":1},"metadata":{"license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"stat.AP","submitted_at":"2017-08-31T14:56:14Z","cross_cats_sorted":[],"title_canon_sha256":"ce173a96950087984c2a50d82cd4112ec8c9d60a95ff0a39762ba974d529798c","abstract_canon_sha256":"3ffa89627bb2d4a8a4963a114c6c032324b3209f50b122d72886af0f4b250421"},"schema_version":"1.0"},"canonical_sha256":"286fc17ae87fde13a15f94006e7d0e09c638a3e292ed0ebc3023120d780ad369","source":{"kind":"arxiv","id":"1708.09762","version":1},"source_aliases":[{"alias_kind":"arxiv","alias_value":"1708.09762","created_at":"2026-05-18T00:36:15Z"},{"alias_kind":"arxiv_version","alias_value":"1708.09762v1","created_at":"2026-05-18T00:36:15Z"},{"alias_kind":"doi","alias_value":"10.48550/arxiv.1708.09762","created_at":"2026-05-18T00:36:15Z"},{"alias_kind":"pith_short_12","alias_value":"FBX4C6XIP7PB","created_at":"2026-05-18T12:31:15Z"},{"alias_kind":"pith_short_16","alias_value":"FBX4C6XIP7PBHIK7","created_at":"2026-05-18T12:31:15Z"},{"alias_kind":"pith_short_8","alias_value":"FBX4C6XI","created_at":"2026-05-18T12:31:15Z"}],"events":[{"event_type":"record_created","subject_pith_number":"pith:2017:FBX4C6XIP7PBHIK7SQAG47IOBH","target":"record","payload":{"canonical_record":{"source":{"id":"1708.09762","kind":"arxiv","version":1},"metadata":{"license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"stat.AP","submitted_at":"2017-08-31T14:56:14Z","cross_cats_sorted":[],"title_canon_sha256":"ce173a96950087984c2a50d82cd4112ec8c9d60a95ff0a39762ba974d529798c","abstract_canon_sha256":"3ffa89627bb2d4a8a4963a114c6c032324b3209f50b122d72886af0f4b250421"},"schema_version":"1.0"},"canonical_sha256":"286fc17ae87fde13a15f94006e7d0e09c638a3e292ed0ebc3023120d780ad369","receipt":{"kind":"pith_receipt","key_id":"pith-v1-2026-05","algorithm":"ed25519","signed_at":"2026-05-18T00:36:15.178974Z","signature_b64":"6OWY5A4hmeXmK3dg8uvkZg6Q7ruAKwok+j6UD6HTS3kfLHNuFr35Ua3rUcHqW1f8OC8wYhE+xomh7sH5J0p2Bg==","signed_message":"canonical_sha256_bytes","builder_version":"pith-number-builder-2026-05-17-v1","receipt_version":"0.3","canonical_sha256":"286fc17ae87fde13a15f94006e7d0e09c638a3e292ed0ebc3023120d780ad369","last_reissued_at":"2026-05-18T00:36:15.178272Z","signature_status":"signed_v1","first_computed_at":"2026-05-18T00:36:15.178272Z","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54"},"source_kind":"arxiv","source_id":"1708.09762","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":"2026-05-18T00:36:15Z","supersedes":[],"prev_event":null,"signature":{"signature_status":"signed_v1","algorithm":"ed25519","key_id":"pith-v1-2026-05","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54","signature_b64":"cZ9nfXuvmfCeJr80YCJmLSPcse2GKb4NBvTv32koSHzgS5hlkBK4q0NQ9Jq3bJxPPEqVjQcSUaWlM+uswJDVCw==","signed_message":"open_graph_event_sha256_bytes","signed_at":"2026-06-23T02:40:32.161968Z"},"content_sha256":"f1de264075e49ac924a9c7ff5ae6749e2008e9ecda92a9a17256988816cd4c5c","schema_version":"1.0","event_id":"sha256:f1de264075e49ac924a9c7ff5ae6749e2008e9ecda92a9a17256988816cd4c5c"},{"event_type":"graph_snapshot","subject_pith_number":"pith:2017:FBX4C6XIP7PBHIK7SQAG47IOBH","target":"graph","payload":{"graph_snapshot":{"paper":{"title":"Gaussian Processes for HRF estimation for BOLD fMRI","license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","headline":"","cross_cats":[],"primary_cat":"stat.AP","authors_text":"Aina Frau-Pascual, Andr\\'es Hoyos-Idrobo, Michael Eickenberg","submitted_at":"2017-08-31T14:56:14Z","abstract_excerpt":"We present a non-parametric joint estimation method for fMRI task activation values and the hemodynamic response function (HRF). The HRF is modeled as a Gaussian process, making continuous evaluation possible for jittered paradigms and providing a variance estimate at each point."},"claims":{"count":0,"items":[],"snapshot_sha256":"258153158e38e3291e3d48162225fcdb2d5a3ed65a07baac614ab91432fd4f57"},"source":{"id":"1708.09762","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":"2026-05-18T00:36:15Z","supersedes":[],"prev_event":null,"signature":{"signature_status":"signed_v1","algorithm":"ed25519","key_id":"pith-v1-2026-05","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54","signature_b64":"bxJkYzxChn0kAWIUUnNC9VhloMag37ZKY8Qdb9lg5BGhvOY8j6FPaMOTK6LrsoBcdffWXWYfnBM2/dHhwAHcDA==","signed_message":"open_graph_event_sha256_bytes","signed_at":"2026-06-23T02:40:32.162465Z"},"content_sha256":"4e47a50aa510739c4ce8ebf1a3f1b0bce30f328baa65f63a570cfd5ad4c33d96","schema_version":"1.0","event_id":"sha256:4e47a50aa510739c4ce8ebf1a3f1b0bce30f328baa65f63a570cfd5ad4c33d96"}],"timestamp_proofs":[],"mirror_hints":[{"mirror_type":"https","name":"Pith Resolver","base_url":"https://pith.science","bundle_url":"https://pith.science/pith/FBX4C6XIP7PBHIK7SQAG47IOBH/bundle.json","state_url":"https://pith.science/pith/FBX4C6XIP7PBHIK7SQAG47IOBH/state.json","well_known_bundle_url":"https://pith.science/.well-known/pith/FBX4C6XIP7PBHIK7SQAG47IOBH/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":"2026-06-23T02:40:32Z","links":{"resolver":"https://pith.science/pith/FBX4C6XIP7PBHIK7SQAG47IOBH","bundle":"https://pith.science/pith/FBX4C6XIP7PBHIK7SQAG47IOBH/bundle.json","state":"https://pith.science/pith/FBX4C6XIP7PBHIK7SQAG47IOBH/state.json","well_known_bundle":"https://pith.science/.well-known/pith/FBX4C6XIP7PBHIK7SQAG47IOBH/bundle.json"},"state":{"state_type":"pith_open_graph_state","state_version":"1.0","pith_number":"pith:2017:FBX4C6XIP7PBHIK7SQAG47IOBH","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":"3ffa89627bb2d4a8a4963a114c6c032324b3209f50b122d72886af0f4b250421","cross_cats_sorted":[],"license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"stat.AP","submitted_at":"2017-08-31T14:56:14Z","title_canon_sha256":"ce173a96950087984c2a50d82cd4112ec8c9d60a95ff0a39762ba974d529798c"},"schema_version":"1.0","source":{"id":"1708.09762","kind":"arxiv","version":1}},"source_aliases":[{"alias_kind":"arxiv","alias_value":"1708.09762","created_at":"2026-05-18T00:36:15Z"},{"alias_kind":"arxiv_version","alias_value":"1708.09762v1","created_at":"2026-05-18T00:36:15Z"},{"alias_kind":"doi","alias_value":"10.48550/arxiv.1708.09762","created_at":"2026-05-18T00:36:15Z"},{"alias_kind":"pith_short_12","alias_value":"FBX4C6XIP7PB","created_at":"2026-05-18T12:31:15Z"},{"alias_kind":"pith_short_16","alias_value":"FBX4C6XIP7PBHIK7","created_at":"2026-05-18T12:31:15Z"},{"alias_kind":"pith_short_8","alias_value":"FBX4C6XI","created_at":"2026-05-18T12:31:15Z"}],"graph_snapshots":[{"event_id":"sha256:4e47a50aa510739c4ce8ebf1a3f1b0bce30f328baa65f63a570cfd5ad4c33d96","target":"graph","created_at":"2026-05-18T00:36:15Z","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 present a non-parametric joint estimation method for fMRI task activation values and the hemodynamic response function (HRF). The HRF is modeled as a Gaussian process, making continuous evaluation possible for jittered paradigms and providing a variance estimate at each point.","authors_text":"Aina Frau-Pascual, Andr\\'es Hoyos-Idrobo, Michael Eickenberg","cross_cats":[],"headline":"","license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"stat.AP","submitted_at":"2017-08-31T14:56:14Z","title":"Gaussian Processes for HRF estimation for BOLD fMRI"},"references":{"count":0,"internal_anchors":0,"resolved_work":0,"sample":[],"snapshot_sha256":"258153158e38e3291e3d48162225fcdb2d5a3ed65a07baac614ab91432fd4f57"},"source":{"id":"1708.09762","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:f1de264075e49ac924a9c7ff5ae6749e2008e9ecda92a9a17256988816cd4c5c","target":"record","created_at":"2026-05-18T00:36:15Z","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":"3ffa89627bb2d4a8a4963a114c6c032324b3209f50b122d72886af0f4b250421","cross_cats_sorted":[],"license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"stat.AP","submitted_at":"2017-08-31T14:56:14Z","title_canon_sha256":"ce173a96950087984c2a50d82cd4112ec8c9d60a95ff0a39762ba974d529798c"},"schema_version":"1.0","source":{"id":"1708.09762","kind":"arxiv","version":1}},"canonical_sha256":"286fc17ae87fde13a15f94006e7d0e09c638a3e292ed0ebc3023120d780ad369","receipt":{"algorithm":"ed25519","builder_version":"pith-number-builder-2026-05-17-v1","canonical_sha256":"286fc17ae87fde13a15f94006e7d0e09c638a3e292ed0ebc3023120d780ad369","first_computed_at":"2026-05-18T00:36:15.178272Z","key_id":"pith-v1-2026-05","kind":"pith_receipt","last_reissued_at":"2026-05-18T00:36:15.178272Z","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54","receipt_version":"0.3","signature_b64":"6OWY5A4hmeXmK3dg8uvkZg6Q7ruAKwok+j6UD6HTS3kfLHNuFr35Ua3rUcHqW1f8OC8wYhE+xomh7sH5J0p2Bg==","signature_status":"signed_v1","signed_at":"2026-05-18T00:36:15.178974Z","signed_message":"canonical_sha256_bytes"},"source_id":"1708.09762","source_kind":"arxiv","source_version":1}}},"equivocations":[],"invalid_events":[],"applied_event_ids":["sha256:f1de264075e49ac924a9c7ff5ae6749e2008e9ecda92a9a17256988816cd4c5c","sha256:4e47a50aa510739c4ce8ebf1a3f1b0bce30f328baa65f63a570cfd5ad4c33d96"],"state_sha256":"703ec4de34a57f681e248211ee71411bb4633d6c22fb69229d10f368d7fef411"},"bundle_signature":{"signature_status":"signed_v1","algorithm":"ed25519","key_id":"pith-v1-2026-05","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54","signature_b64":"TksMBgM76nITbyVHP+i2fMk969oyNNA3062u7N2hcM4G+kscbtsYn1Z8jLXb/oaVs4FDqZk0Pb2H8dsQDw9yCA==","signed_message":"bundle_sha256_bytes","signed_at":"2026-06-23T02:40:32.164965Z","bundle_sha256":"64cc1998f4ce6c5dc30d4923120ba30bb1b83f1b435a550def1edbdab1085262"}}