{"bundle_type":"pith_open_graph_bundle","bundle_version":"1.0","pith_number":"pith:2014:Q3WTFJWBQKEGVHQP4233GYG6WK","short_pith_number":"pith:Q3WTFJWB","canonical_record":{"source":{"id":"1412.3925","kind":"arxiv","version":1},"metadata":{"license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"q-bio.NC","submitted_at":"2014-12-12T09:00:30Z","cross_cats_sorted":["cs.CV"],"title_canon_sha256":"21226149a56bf925dc9a37bd6fa4468d4ea63555dd8961c391dbbc93bda41d15","abstract_canon_sha256":"b5bbfaf758582ab35c6fdcc26c0160672ce94a096e4d13a36dd55dfa16cec9f6"},"schema_version":"1.0"},"canonical_sha256":"86ed32a6c182886a9e0fe6b7b360deb292f0aa6212d5a150478954fde960bb27","source":{"kind":"arxiv","id":"1412.3925","version":1},"source_aliases":[{"alias_kind":"arxiv","alias_value":"1412.3925","created_at":"2026-05-18T02:31:29Z"},{"alias_kind":"arxiv_version","alias_value":"1412.3925v1","created_at":"2026-05-18T02:31:29Z"},{"alias_kind":"doi","alias_value":"10.48550/arxiv.1412.3925","created_at":"2026-05-18T02:31:29Z"},{"alias_kind":"pith_short_12","alias_value":"Q3WTFJWBQKEG","created_at":"2026-05-18T12:28:43Z"},{"alias_kind":"pith_short_16","alias_value":"Q3WTFJWBQKEGVHQP","created_at":"2026-05-18T12:28:43Z"},{"alias_kind":"pith_short_8","alias_value":"Q3WTFJWB","created_at":"2026-05-18T12:28:43Z"}],"events":[{"event_type":"record_created","subject_pith_number":"pith:2014:Q3WTFJWBQKEGVHQP4233GYG6WK","target":"record","payload":{"canonical_record":{"source":{"id":"1412.3925","kind":"arxiv","version":1},"metadata":{"license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"q-bio.NC","submitted_at":"2014-12-12T09:00:30Z","cross_cats_sorted":["cs.CV"],"title_canon_sha256":"21226149a56bf925dc9a37bd6fa4468d4ea63555dd8961c391dbbc93bda41d15","abstract_canon_sha256":"b5bbfaf758582ab35c6fdcc26c0160672ce94a096e4d13a36dd55dfa16cec9f6"},"schema_version":"1.0"},"canonical_sha256":"86ed32a6c182886a9e0fe6b7b360deb292f0aa6212d5a150478954fde960bb27","receipt":{"kind":"pith_receipt","key_id":"pith-v1-2026-05","algorithm":"ed25519","signed_at":"2026-05-18T02:31:29.275140Z","signature_b64":"igfXfFPfO93/IpCNPEHazKJcd9mVLPmEHVjympSB/0tuQy7uGGjTAcXTAxCgenhyKWVumqMkctX26+ZdFt/aDw==","signed_message":"canonical_sha256_bytes","builder_version":"pith-number-builder-2026-05-17-v1","receipt_version":"0.3","canonical_sha256":"86ed32a6c182886a9e0fe6b7b360deb292f0aa6212d5a150478954fde960bb27","last_reissued_at":"2026-05-18T02:31:29.274504Z","signature_status":"signed_v1","first_computed_at":"2026-05-18T02:31:29.274504Z","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54"},"source_kind":"arxiv","source_id":"1412.3925","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":"2026-05-18T02:31:29Z","supersedes":[],"prev_event":null,"signature":{"signature_status":"signed_v1","algorithm":"ed25519","key_id":"pith-v1-2026-05","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54","signature_b64":"dAkxBCIZMBl5ffgOOy5iNrLfI7hkMfYjD07isxrIe6/+ySK2/+Z8gh+OnD6tj/pAA6IfnwJAMoMFYMlu9Fx8Cg==","signed_message":"open_graph_event_sha256_bytes","signed_at":"2026-06-03T21:36:20.203840Z"},"content_sha256":"f2d4fd57a2a7e6443f4d26c2f0a2f37e55fc753c464ebf27345619ca364e9b69","schema_version":"1.0","event_id":"sha256:f2d4fd57a2a7e6443f4d26c2f0a2f37e55fc753c464ebf27345619ca364e9b69"},{"event_type":"graph_snapshot","subject_pith_number":"pith:2014:Q3WTFJWBQKEGVHQP4233GYG6WK","target":"graph","payload":{"graph_snapshot":{"paper":{"title":"Region segmentation for sparse decompositions: better brain parcellations from rest fMRI","license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","headline":"","cross_cats":["cs.CV"],"primary_cat":"q-bio.NC","authors_text":"Alexandre Abraham (NEUROSPIN, Bertrand Thirion (NEUROSPIN, Dimitris Samaras, Elvis Dohmatob (INRIA Saclay - Ile de France), Gael Varoquaux (NEUROSPIN, INRIA Saclay - Ile de France)","submitted_at":"2014-12-12T09:00:30Z","abstract_excerpt":"Functional Magnetic Resonance Images acquired during resting-state provide information about the functional organization of the brain through measuring correlations between brain areas. Independent components analysis is the reference approach to estimate spatial components from weakly structured data such as brain signal time courses; each of these components may be referred to as a brain network and the whole set of components can be conceptualized as a brain functional atlas. Recently, new methods using a sparsity prior have emerged to deal with low signal-to-noise ratio data. However, even"},"claims":{"count":0,"items":[],"snapshot_sha256":"258153158e38e3291e3d48162225fcdb2d5a3ed65a07baac614ab91432fd4f57"},"source":{"id":"1412.3925","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":"2026-05-18T02:31:29Z","supersedes":[],"prev_event":null,"signature":{"signature_status":"signed_v1","algorithm":"ed25519","key_id":"pith-v1-2026-05","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54","signature_b64":"i/L2GE99uVgWLZeNZN+jkC0vuY7YZk2dBJ5yUovNdPiWkN5pTWFXr5/+Veh3522AB610EkZ1AdoB+yT3BTdUBw==","signed_message":"open_graph_event_sha256_bytes","signed_at":"2026-06-03T21:36:20.204200Z"},"content_sha256":"d6329b02210d68cf3be4c39cb9a735532b87789c11bc8ac552d3edaa56286bc4","schema_version":"1.0","event_id":"sha256:d6329b02210d68cf3be4c39cb9a735532b87789c11bc8ac552d3edaa56286bc4"}],"timestamp_proofs":[],"mirror_hints":[{"mirror_type":"https","name":"Pith Resolver","base_url":"https://pith.science","bundle_url":"https://pith.science/pith/Q3WTFJWBQKEGVHQP4233GYG6WK/bundle.json","state_url":"https://pith.science/pith/Q3WTFJWBQKEGVHQP4233GYG6WK/state.json","well_known_bundle_url":"https://pith.science/.well-known/pith/Q3WTFJWBQKEGVHQP4233GYG6WK/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":"2026-06-03T21:36:20Z","links":{"resolver":"https://pith.science/pith/Q3WTFJWBQKEGVHQP4233GYG6WK","bundle":"https://pith.science/pith/Q3WTFJWBQKEGVHQP4233GYG6WK/bundle.json","state":"https://pith.science/pith/Q3WTFJWBQKEGVHQP4233GYG6WK/state.json","well_known_bundle":"https://pith.science/.well-known/pith/Q3WTFJWBQKEGVHQP4233GYG6WK/bundle.json"},"state":{"state_type":"pith_open_graph_state","state_version":"1.0","pith_number":"pith:2014:Q3WTFJWBQKEGVHQP4233GYG6WK","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":"b5bbfaf758582ab35c6fdcc26c0160672ce94a096e4d13a36dd55dfa16cec9f6","cross_cats_sorted":["cs.CV"],"license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"q-bio.NC","submitted_at":"2014-12-12T09:00:30Z","title_canon_sha256":"21226149a56bf925dc9a37bd6fa4468d4ea63555dd8961c391dbbc93bda41d15"},"schema_version":"1.0","source":{"id":"1412.3925","kind":"arxiv","version":1}},"source_aliases":[{"alias_kind":"arxiv","alias_value":"1412.3925","created_at":"2026-05-18T02:31:29Z"},{"alias_kind":"arxiv_version","alias_value":"1412.3925v1","created_at":"2026-05-18T02:31:29Z"},{"alias_kind":"doi","alias_value":"10.48550/arxiv.1412.3925","created_at":"2026-05-18T02:31:29Z"},{"alias_kind":"pith_short_12","alias_value":"Q3WTFJWBQKEG","created_at":"2026-05-18T12:28:43Z"},{"alias_kind":"pith_short_16","alias_value":"Q3WTFJWBQKEGVHQP","created_at":"2026-05-18T12:28:43Z"},{"alias_kind":"pith_short_8","alias_value":"Q3WTFJWB","created_at":"2026-05-18T12:28:43Z"}],"graph_snapshots":[{"event_id":"sha256:d6329b02210d68cf3be4c39cb9a735532b87789c11bc8ac552d3edaa56286bc4","target":"graph","created_at":"2026-05-18T02:31:29Z","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":"Functional Magnetic Resonance Images acquired during resting-state provide information about the functional organization of the brain through measuring correlations between brain areas. Independent components analysis is the reference approach to estimate spatial components from weakly structured data such as brain signal time courses; each of these components may be referred to as a brain network and the whole set of components can be conceptualized as a brain functional atlas. Recently, new methods using a sparsity prior have emerged to deal with low signal-to-noise ratio data. However, even","authors_text":"Alexandre Abraham (NEUROSPIN, Bertrand Thirion (NEUROSPIN, Dimitris Samaras, Elvis Dohmatob (INRIA Saclay - Ile de France), Gael Varoquaux (NEUROSPIN, INRIA Saclay - Ile de France)","cross_cats":["cs.CV"],"headline":"","license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"q-bio.NC","submitted_at":"2014-12-12T09:00:30Z","title":"Region segmentation for sparse decompositions: better brain parcellations from rest fMRI"},"references":{"count":0,"internal_anchors":0,"resolved_work":0,"sample":[],"snapshot_sha256":"258153158e38e3291e3d48162225fcdb2d5a3ed65a07baac614ab91432fd4f57"},"source":{"id":"1412.3925","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:f2d4fd57a2a7e6443f4d26c2f0a2f37e55fc753c464ebf27345619ca364e9b69","target":"record","created_at":"2026-05-18T02:31:29Z","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":"b5bbfaf758582ab35c6fdcc26c0160672ce94a096e4d13a36dd55dfa16cec9f6","cross_cats_sorted":["cs.CV"],"license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"q-bio.NC","submitted_at":"2014-12-12T09:00:30Z","title_canon_sha256":"21226149a56bf925dc9a37bd6fa4468d4ea63555dd8961c391dbbc93bda41d15"},"schema_version":"1.0","source":{"id":"1412.3925","kind":"arxiv","version":1}},"canonical_sha256":"86ed32a6c182886a9e0fe6b7b360deb292f0aa6212d5a150478954fde960bb27","receipt":{"algorithm":"ed25519","builder_version":"pith-number-builder-2026-05-17-v1","canonical_sha256":"86ed32a6c182886a9e0fe6b7b360deb292f0aa6212d5a150478954fde960bb27","first_computed_at":"2026-05-18T02:31:29.274504Z","key_id":"pith-v1-2026-05","kind":"pith_receipt","last_reissued_at":"2026-05-18T02:31:29.274504Z","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54","receipt_version":"0.3","signature_b64":"igfXfFPfO93/IpCNPEHazKJcd9mVLPmEHVjympSB/0tuQy7uGGjTAcXTAxCgenhyKWVumqMkctX26+ZdFt/aDw==","signature_status":"signed_v1","signed_at":"2026-05-18T02:31:29.275140Z","signed_message":"canonical_sha256_bytes"},"source_id":"1412.3925","source_kind":"arxiv","source_version":1}}},"equivocations":[],"invalid_events":[],"applied_event_ids":["sha256:f2d4fd57a2a7e6443f4d26c2f0a2f37e55fc753c464ebf27345619ca364e9b69","sha256:d6329b02210d68cf3be4c39cb9a735532b87789c11bc8ac552d3edaa56286bc4"],"state_sha256":"c5f5b7e559b8c5866123ba4bd638cd6b1fdedbb2d01c8eb0e77e1069fcad7c5e"},"bundle_signature":{"signature_status":"signed_v1","algorithm":"ed25519","key_id":"pith-v1-2026-05","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54","signature_b64":"+MIFa4g/7ZEYEH4AkEswMjOqETsJTZfV9MVDprO1RUTZMD9rFQ86qHNn2W/Fk6diICIVHQ40+fIza3Pm8QIKDg==","signed_message":"bundle_sha256_bytes","signed_at":"2026-06-03T21:36:20.206380Z","bundle_sha256":"40f497ed1c3e0ccd6a7ef6f6a4d59b99847d908f2e3d33b40a37c8da7f6ccf66"}}