{"bundle_type":"pith_open_graph_bundle","bundle_version":"1.0","pith_number":"pith:2013:EHQZZYIE5S3TY5RVSLWJ2ZNW4C","short_pith_number":"pith:EHQZZYIE","canonical_record":{"source":{"id":"1312.6108","kind":"arxiv","version":3},"metadata":{"license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"cs.NE","submitted_at":"2013-12-20T20:47:28Z","cross_cats_sorted":["cs.LG","q-bio.NC"],"title_canon_sha256":"5bfab0871fe2b1502885c7e25be8feb0899bbb0e070186344dd1d2723fee3a54","abstract_canon_sha256":"7fac05adb70a7325d87410a1680c5c050c7fdea948a531ba1259d41ebf9fce73"},"schema_version":"1.0"},"canonical_sha256":"21e19ce104ecb73c763592ec9d65b6e0aee7ff3f9e7002ba779b7d33086db850","source":{"kind":"arxiv","id":"1312.6108","version":3},"source_aliases":[{"alias_kind":"arxiv","alias_value":"1312.6108","created_at":"2026-05-18T02:58:56Z"},{"alias_kind":"arxiv_version","alias_value":"1312.6108v3","created_at":"2026-05-18T02:58:56Z"},{"alias_kind":"doi","alias_value":"10.48550/arxiv.1312.6108","created_at":"2026-05-18T02:58:56Z"},{"alias_kind":"pith_short_12","alias_value":"EHQZZYIE5S3T","created_at":"2026-05-18T12:27:43Z"},{"alias_kind":"pith_short_16","alias_value":"EHQZZYIE5S3TY5RV","created_at":"2026-05-18T12:27:43Z"},{"alias_kind":"pith_short_8","alias_value":"EHQZZYIE","created_at":"2026-05-18T12:27:43Z"}],"events":[{"event_type":"record_created","subject_pith_number":"pith:2013:EHQZZYIE5S3TY5RVSLWJ2ZNW4C","target":"record","payload":{"canonical_record":{"source":{"id":"1312.6108","kind":"arxiv","version":3},"metadata":{"license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"cs.NE","submitted_at":"2013-12-20T20:47:28Z","cross_cats_sorted":["cs.LG","q-bio.NC"],"title_canon_sha256":"5bfab0871fe2b1502885c7e25be8feb0899bbb0e070186344dd1d2723fee3a54","abstract_canon_sha256":"7fac05adb70a7325d87410a1680c5c050c7fdea948a531ba1259d41ebf9fce73"},"schema_version":"1.0"},"canonical_sha256":"21e19ce104ecb73c763592ec9d65b6e0aee7ff3f9e7002ba779b7d33086db850","receipt":{"kind":"pith_receipt","key_id":"pith-v1-2026-05","algorithm":"ed25519","signed_at":"2026-05-18T02:58:56.412846Z","signature_b64":"Mc7+dzIHayE9MWlPl3vsfY/efB5cou9FwPfDr20OPON7THhQElreBWfKNUlLK1hvxJQnNwRonhfeHulDaZ9IAg==","signed_message":"canonical_sha256_bytes","builder_version":"pith-number-builder-2026-05-17-v1","receipt_version":"0.3","canonical_sha256":"21e19ce104ecb73c763592ec9d65b6e0aee7ff3f9e7002ba779b7d33086db850","last_reissued_at":"2026-05-18T02:58:56.412254Z","signature_status":"signed_v1","first_computed_at":"2026-05-18T02:58:56.412254Z","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54"},"source_kind":"arxiv","source_id":"1312.6108","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":"2026-05-18T02:58:56Z","supersedes":[],"prev_event":null,"signature":{"signature_status":"signed_v1","algorithm":"ed25519","key_id":"pith-v1-2026-05","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54","signature_b64":"3dQgePca6wduNx49kMj7okY0Qe7O4O/gki7vGa2ifP85kYQaI43Qu3dFPM0p1nq8STPvHn1ocQfj8XAJ27bFAA==","signed_message":"open_graph_event_sha256_bytes","signed_at":"2026-06-11T10:05:22.569063Z"},"content_sha256":"b2d0da3c63fbf049a27da363c3e4010897168800f0cde66103cdb232ae778a46","schema_version":"1.0","event_id":"sha256:b2d0da3c63fbf049a27da363c3e4010897168800f0cde66103cdb232ae778a46"},{"event_type":"graph_snapshot","subject_pith_number":"pith:2013:EHQZZYIE5S3TY5RVSLWJ2ZNW4C","target":"graph","payload":{"graph_snapshot":{"paper":{"title":"Modeling correlations in spontaneous activity of visual cortex with centered Gaussian-binary deep Boltzmann machines","license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","headline":"","cross_cats":["cs.LG","q-bio.NC"],"primary_cat":"cs.NE","authors_text":"Dirk Jancke, Laurenz Wiskott, Nan Wang","submitted_at":"2013-12-20T20:47:28Z","abstract_excerpt":"Spontaneous cortical activity -- the ongoing cortical activities in absence of intentional sensory input -- is considered to play a vital role in many aspects of both normal brain functions and mental dysfunctions. We present a centered Gaussian-binary Deep Boltzmann Machine (GDBM) for modeling the activity in early cortical visual areas and relate the random sampling in GDBMs to the spontaneous cortical activity. After training the proposed model on natural image patches, we show that the samples collected from the model's probability distribution encompass similar activity patterns as found "},"claims":{"count":0,"items":[],"snapshot_sha256":"258153158e38e3291e3d48162225fcdb2d5a3ed65a07baac614ab91432fd4f57"},"source":{"id":"1312.6108","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":""},"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":"2026-05-18T02:58:56Z","supersedes":[],"prev_event":null,"signature":{"signature_status":"signed_v1","algorithm":"ed25519","key_id":"pith-v1-2026-05","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54","signature_b64":"av/o2oa+/Qhf+C5hjWx8g1/7oYF7gyI7tWURultkpzmWMqC0kUJM+8LyXkE5ratYPhC3tFz/i39VmeVVLySfCQ==","signed_message":"open_graph_event_sha256_bytes","signed_at":"2026-06-11T10:05:22.569437Z"},"content_sha256":"f223c213fc476ccb6cb3b8fdddc900c4f69e56bd7ffbc9d13f460cc5e0db728b","schema_version":"1.0","event_id":"sha256:f223c213fc476ccb6cb3b8fdddc900c4f69e56bd7ffbc9d13f460cc5e0db728b"}],"timestamp_proofs":[],"mirror_hints":[{"mirror_type":"https","name":"Pith Resolver","base_url":"https://pith.science","bundle_url":"https://pith.science/pith/EHQZZYIE5S3TY5RVSLWJ2ZNW4C/bundle.json","state_url":"https://pith.science/pith/EHQZZYIE5S3TY5RVSLWJ2ZNW4C/state.json","well_known_bundle_url":"https://pith.science/.well-known/pith/EHQZZYIE5S3TY5RVSLWJ2ZNW4C/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":"2026-06-11T10:05:22Z","links":{"resolver":"https://pith.science/pith/EHQZZYIE5S3TY5RVSLWJ2ZNW4C","bundle":"https://pith.science/pith/EHQZZYIE5S3TY5RVSLWJ2ZNW4C/bundle.json","state":"https://pith.science/pith/EHQZZYIE5S3TY5RVSLWJ2ZNW4C/state.json","well_known_bundle":"https://pith.science/.well-known/pith/EHQZZYIE5S3TY5RVSLWJ2ZNW4C/bundle.json"},"state":{"state_type":"pith_open_graph_state","state_version":"1.0","pith_number":"pith:2013:EHQZZYIE5S3TY5RVSLWJ2ZNW4C","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":"7fac05adb70a7325d87410a1680c5c050c7fdea948a531ba1259d41ebf9fce73","cross_cats_sorted":["cs.LG","q-bio.NC"],"license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"cs.NE","submitted_at":"2013-12-20T20:47:28Z","title_canon_sha256":"5bfab0871fe2b1502885c7e25be8feb0899bbb0e070186344dd1d2723fee3a54"},"schema_version":"1.0","source":{"id":"1312.6108","kind":"arxiv","version":3}},"source_aliases":[{"alias_kind":"arxiv","alias_value":"1312.6108","created_at":"2026-05-18T02:58:56Z"},{"alias_kind":"arxiv_version","alias_value":"1312.6108v3","created_at":"2026-05-18T02:58:56Z"},{"alias_kind":"doi","alias_value":"10.48550/arxiv.1312.6108","created_at":"2026-05-18T02:58:56Z"},{"alias_kind":"pith_short_12","alias_value":"EHQZZYIE5S3T","created_at":"2026-05-18T12:27:43Z"},{"alias_kind":"pith_short_16","alias_value":"EHQZZYIE5S3TY5RV","created_at":"2026-05-18T12:27:43Z"},{"alias_kind":"pith_short_8","alias_value":"EHQZZYIE","created_at":"2026-05-18T12:27:43Z"}],"graph_snapshots":[{"event_id":"sha256:f223c213fc476ccb6cb3b8fdddc900c4f69e56bd7ffbc9d13f460cc5e0db728b","target":"graph","created_at":"2026-05-18T02:58:56Z","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":"Spontaneous cortical activity -- the ongoing cortical activities in absence of intentional sensory input -- is considered to play a vital role in many aspects of both normal brain functions and mental dysfunctions. We present a centered Gaussian-binary Deep Boltzmann Machine (GDBM) for modeling the activity in early cortical visual areas and relate the random sampling in GDBMs to the spontaneous cortical activity. After training the proposed model on natural image patches, we show that the samples collected from the model's probability distribution encompass similar activity patterns as found ","authors_text":"Dirk Jancke, Laurenz Wiskott, Nan Wang","cross_cats":["cs.LG","q-bio.NC"],"headline":"","license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"cs.NE","submitted_at":"2013-12-20T20:47:28Z","title":"Modeling correlations in spontaneous activity of visual cortex with centered Gaussian-binary deep Boltzmann machines"},"references":{"count":0,"internal_anchors":0,"resolved_work":0,"sample":[],"snapshot_sha256":"258153158e38e3291e3d48162225fcdb2d5a3ed65a07baac614ab91432fd4f57"},"source":{"id":"1312.6108","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:b2d0da3c63fbf049a27da363c3e4010897168800f0cde66103cdb232ae778a46","target":"record","created_at":"2026-05-18T02:58:56Z","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":"7fac05adb70a7325d87410a1680c5c050c7fdea948a531ba1259d41ebf9fce73","cross_cats_sorted":["cs.LG","q-bio.NC"],"license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"cs.NE","submitted_at":"2013-12-20T20:47:28Z","title_canon_sha256":"5bfab0871fe2b1502885c7e25be8feb0899bbb0e070186344dd1d2723fee3a54"},"schema_version":"1.0","source":{"id":"1312.6108","kind":"arxiv","version":3}},"canonical_sha256":"21e19ce104ecb73c763592ec9d65b6e0aee7ff3f9e7002ba779b7d33086db850","receipt":{"algorithm":"ed25519","builder_version":"pith-number-builder-2026-05-17-v1","canonical_sha256":"21e19ce104ecb73c763592ec9d65b6e0aee7ff3f9e7002ba779b7d33086db850","first_computed_at":"2026-05-18T02:58:56.412254Z","key_id":"pith-v1-2026-05","kind":"pith_receipt","last_reissued_at":"2026-05-18T02:58:56.412254Z","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54","receipt_version":"0.3","signature_b64":"Mc7+dzIHayE9MWlPl3vsfY/efB5cou9FwPfDr20OPON7THhQElreBWfKNUlLK1hvxJQnNwRonhfeHulDaZ9IAg==","signature_status":"signed_v1","signed_at":"2026-05-18T02:58:56.412846Z","signed_message":"canonical_sha256_bytes"},"source_id":"1312.6108","source_kind":"arxiv","source_version":3}}},"equivocations":[],"invalid_events":[],"applied_event_ids":["sha256:b2d0da3c63fbf049a27da363c3e4010897168800f0cde66103cdb232ae778a46","sha256:f223c213fc476ccb6cb3b8fdddc900c4f69e56bd7ffbc9d13f460cc5e0db728b"],"state_sha256":"85d9e84eac16e279a72f3c4bdab04dd0ecfba25449e08792a0100c66a8e6d7fa"},"bundle_signature":{"signature_status":"signed_v1","algorithm":"ed25519","key_id":"pith-v1-2026-05","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54","signature_b64":"LS8wCWYQxCFjsmQit28JM3ptybOA8cxvnyF/UlHQ84ck4iOIRHDdw/yRnJPX5BFmAPtIa+rUCnD2U3fyzOkECA==","signed_message":"bundle_sha256_bytes","signed_at":"2026-06-11T10:05:22.571618Z","bundle_sha256":"421acff1328568989107fead0eac148627751876b3aa255f37338619d78fd989"}}