{"bundle_type":"pith_open_graph_bundle","bundle_version":"1.0","pith_number":"pith:2019:HO57R57PXRIG6MOANTVUYZKPQR","short_pith_number":"pith:HO57R57P","canonical_record":{"source":{"id":"1903.11409","kind":"arxiv","version":1},"metadata":{"license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"cs.DC","submitted_at":"2019-03-27T13:18:54Z","cross_cats_sorted":[],"title_canon_sha256":"8db74ffbd6f4d892aecad0814110b546c6ad7d00fa1933597303e07d84550a6d","abstract_canon_sha256":"bbb379aa898b6e04f14b9ba603705e489edd3264e6ee86eecb31eb1c29f911be"},"schema_version":"1.0"},"canonical_sha256":"3bbbf8f7efbc506f31c06ceb4c654f844621f94f884211720a2fec14bc520fa7","source":{"kind":"arxiv","id":"1903.11409","version":1},"source_aliases":[{"alias_kind":"arxiv","alias_value":"1903.11409","created_at":"2026-05-17T23:50:03Z"},{"alias_kind":"arxiv_version","alias_value":"1903.11409v1","created_at":"2026-05-17T23:50:03Z"},{"alias_kind":"doi","alias_value":"10.48550/arxiv.1903.11409","created_at":"2026-05-17T23:50:03Z"},{"alias_kind":"pith_short_12","alias_value":"HO57R57PXRIG","created_at":"2026-05-18T12:33:18Z"},{"alias_kind":"pith_short_16","alias_value":"HO57R57PXRIG6MOA","created_at":"2026-05-18T12:33:18Z"},{"alias_kind":"pith_short_8","alias_value":"HO57R57P","created_at":"2026-05-18T12:33:18Z"}],"events":[{"event_type":"record_created","subject_pith_number":"pith:2019:HO57R57PXRIG6MOANTVUYZKPQR","target":"record","payload":{"canonical_record":{"source":{"id":"1903.11409","kind":"arxiv","version":1},"metadata":{"license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"cs.DC","submitted_at":"2019-03-27T13:18:54Z","cross_cats_sorted":[],"title_canon_sha256":"8db74ffbd6f4d892aecad0814110b546c6ad7d00fa1933597303e07d84550a6d","abstract_canon_sha256":"bbb379aa898b6e04f14b9ba603705e489edd3264e6ee86eecb31eb1c29f911be"},"schema_version":"1.0"},"canonical_sha256":"3bbbf8f7efbc506f31c06ceb4c654f844621f94f884211720a2fec14bc520fa7","receipt":{"kind":"pith_receipt","key_id":"pith-v1-2026-05","algorithm":"ed25519","signed_at":"2026-05-17T23:50:03.357456Z","signature_b64":"fDdqLBnvIGOeEp7yfclnXOJl/1EnjY9Gu0ORSyeBDnEknE1InekBMSoCUhjkquYRvP6h1W8BXWXXLmIZPnmeCg==","signed_message":"canonical_sha256_bytes","builder_version":"pith-number-builder-2026-05-17-v1","receipt_version":"0.3","canonical_sha256":"3bbbf8f7efbc506f31c06ceb4c654f844621f94f884211720a2fec14bc520fa7","last_reissued_at":"2026-05-17T23:50:03.357020Z","signature_status":"signed_v1","first_computed_at":"2026-05-17T23:50:03.357020Z","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54"},"source_kind":"arxiv","source_id":"1903.11409","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":"2026-05-17T23:50:03Z","supersedes":[],"prev_event":null,"signature":{"signature_status":"signed_v1","algorithm":"ed25519","key_id":"pith-v1-2026-05","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54","signature_b64":"hegaJYPGUszVWrPnje5gRe0c0kAaWzaetCDVmuSAOuTgE8g5TdkJsI8RMzkO4O22ajhs56h429ohIcGfQVCnDg==","signed_message":"open_graph_event_sha256_bytes","signed_at":"2026-05-31T17:57:20.338131Z"},"content_sha256":"f7c07b4a43c1b09d235e2050333fd3739199b19284d76fe94ecc2a72d6fee6f6","schema_version":"1.0","event_id":"sha256:f7c07b4a43c1b09d235e2050333fd3739199b19284d76fe94ecc2a72d6fee6f6"},{"event_type":"graph_snapshot","subject_pith_number":"pith:2019:HO57R57PXRIG6MOANTVUYZKPQR","target":"graph","payload":{"graph_snapshot":{"paper":{"title":"Batched Sparse Matrix Multiplication for Accelerating Graph Convolutional Networks","license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","headline":"","cross_cats":[],"primary_cat":"cs.DC","authors_text":"Akira Nukada, Ryosuke Kojima, Satoshi Matsuoka, Yusuke Nagasaka","submitted_at":"2019-03-27T13:18:54Z","abstract_excerpt":"Graph Convolutional Networks (GCNs) are recently getting much attention in bioinformatics and chemoinformatics as a state-of-the-art machine learning approach with high accuracy. GCNs process convolutional operations along with graph structures, and GPUs are used to process enormous operations including sparse-dense matrix multiplication (SpMM) when the graph structure is expressed as an adjacency matrix with sparse matrix format. However, the SpMM operation on small graph, where the number of nodes is tens or hundreds, hardly exploits high parallelism or compute power of GPU. Therefore, SpMM "},"claims":{"count":0,"items":[],"snapshot_sha256":"258153158e38e3291e3d48162225fcdb2d5a3ed65a07baac614ab91432fd4f57"},"source":{"id":"1903.11409","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":"2026-05-17T23:50:03Z","supersedes":[],"prev_event":null,"signature":{"signature_status":"signed_v1","algorithm":"ed25519","key_id":"pith-v1-2026-05","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54","signature_b64":"bXWWLMlGmiRVYA5f3lWJ565vqQ6WgVy4z+44w9fU3nJVvxGG5iZuC1kd6dQWF1mpBArNvHvAQSqOXZ08wh7yBw==","signed_message":"open_graph_event_sha256_bytes","signed_at":"2026-05-31T17:57:20.339008Z"},"content_sha256":"c59c9a2a3931ed7bbabb2704a411458bf4734dce4170be3305e99b33c80cc6d9","schema_version":"1.0","event_id":"sha256:c59c9a2a3931ed7bbabb2704a411458bf4734dce4170be3305e99b33c80cc6d9"}],"timestamp_proofs":[],"mirror_hints":[{"mirror_type":"https","name":"Pith Resolver","base_url":"https://pith.science","bundle_url":"https://pith.science/pith/HO57R57PXRIG6MOANTVUYZKPQR/bundle.json","state_url":"https://pith.science/pith/HO57R57PXRIG6MOANTVUYZKPQR/state.json","well_known_bundle_url":"https://pith.science/.well-known/pith/HO57R57PXRIG6MOANTVUYZKPQR/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":"2026-05-31T17:57:20Z","links":{"resolver":"https://pith.science/pith/HO57R57PXRIG6MOANTVUYZKPQR","bundle":"https://pith.science/pith/HO57R57PXRIG6MOANTVUYZKPQR/bundle.json","state":"https://pith.science/pith/HO57R57PXRIG6MOANTVUYZKPQR/state.json","well_known_bundle":"https://pith.science/.well-known/pith/HO57R57PXRIG6MOANTVUYZKPQR/bundle.json"},"state":{"state_type":"pith_open_graph_state","state_version":"1.0","pith_number":"pith:2019:HO57R57PXRIG6MOANTVUYZKPQR","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":"bbb379aa898b6e04f14b9ba603705e489edd3264e6ee86eecb31eb1c29f911be","cross_cats_sorted":[],"license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"cs.DC","submitted_at":"2019-03-27T13:18:54Z","title_canon_sha256":"8db74ffbd6f4d892aecad0814110b546c6ad7d00fa1933597303e07d84550a6d"},"schema_version":"1.0","source":{"id":"1903.11409","kind":"arxiv","version":1}},"source_aliases":[{"alias_kind":"arxiv","alias_value":"1903.11409","created_at":"2026-05-17T23:50:03Z"},{"alias_kind":"arxiv_version","alias_value":"1903.11409v1","created_at":"2026-05-17T23:50:03Z"},{"alias_kind":"doi","alias_value":"10.48550/arxiv.1903.11409","created_at":"2026-05-17T23:50:03Z"},{"alias_kind":"pith_short_12","alias_value":"HO57R57PXRIG","created_at":"2026-05-18T12:33:18Z"},{"alias_kind":"pith_short_16","alias_value":"HO57R57PXRIG6MOA","created_at":"2026-05-18T12:33:18Z"},{"alias_kind":"pith_short_8","alias_value":"HO57R57P","created_at":"2026-05-18T12:33:18Z"}],"graph_snapshots":[{"event_id":"sha256:c59c9a2a3931ed7bbabb2704a411458bf4734dce4170be3305e99b33c80cc6d9","target":"graph","created_at":"2026-05-17T23:50:03Z","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":"Graph Convolutional Networks (GCNs) are recently getting much attention in bioinformatics and chemoinformatics as a state-of-the-art machine learning approach with high accuracy. GCNs process convolutional operations along with graph structures, and GPUs are used to process enormous operations including sparse-dense matrix multiplication (SpMM) when the graph structure is expressed as an adjacency matrix with sparse matrix format. However, the SpMM operation on small graph, where the number of nodes is tens or hundreds, hardly exploits high parallelism or compute power of GPU. Therefore, SpMM ","authors_text":"Akira Nukada, Ryosuke Kojima, Satoshi Matsuoka, Yusuke Nagasaka","cross_cats":[],"headline":"","license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"cs.DC","submitted_at":"2019-03-27T13:18:54Z","title":"Batched Sparse Matrix Multiplication for Accelerating Graph Convolutional Networks"},"references":{"count":0,"internal_anchors":0,"resolved_work":0,"sample":[],"snapshot_sha256":"258153158e38e3291e3d48162225fcdb2d5a3ed65a07baac614ab91432fd4f57"},"source":{"id":"1903.11409","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:f7c07b4a43c1b09d235e2050333fd3739199b19284d76fe94ecc2a72d6fee6f6","target":"record","created_at":"2026-05-17T23:50:03Z","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":"bbb379aa898b6e04f14b9ba603705e489edd3264e6ee86eecb31eb1c29f911be","cross_cats_sorted":[],"license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"cs.DC","submitted_at":"2019-03-27T13:18:54Z","title_canon_sha256":"8db74ffbd6f4d892aecad0814110b546c6ad7d00fa1933597303e07d84550a6d"},"schema_version":"1.0","source":{"id":"1903.11409","kind":"arxiv","version":1}},"canonical_sha256":"3bbbf8f7efbc506f31c06ceb4c654f844621f94f884211720a2fec14bc520fa7","receipt":{"algorithm":"ed25519","builder_version":"pith-number-builder-2026-05-17-v1","canonical_sha256":"3bbbf8f7efbc506f31c06ceb4c654f844621f94f884211720a2fec14bc520fa7","first_computed_at":"2026-05-17T23:50:03.357020Z","key_id":"pith-v1-2026-05","kind":"pith_receipt","last_reissued_at":"2026-05-17T23:50:03.357020Z","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54","receipt_version":"0.3","signature_b64":"fDdqLBnvIGOeEp7yfclnXOJl/1EnjY9Gu0ORSyeBDnEknE1InekBMSoCUhjkquYRvP6h1W8BXWXXLmIZPnmeCg==","signature_status":"signed_v1","signed_at":"2026-05-17T23:50:03.357456Z","signed_message":"canonical_sha256_bytes"},"source_id":"1903.11409","source_kind":"arxiv","source_version":1}}},"equivocations":[],"invalid_events":[],"applied_event_ids":["sha256:f7c07b4a43c1b09d235e2050333fd3739199b19284d76fe94ecc2a72d6fee6f6","sha256:c59c9a2a3931ed7bbabb2704a411458bf4734dce4170be3305e99b33c80cc6d9"],"state_sha256":"da043ce12d27bb573fe9b56934a68cefb911f1d8ff757a7413f704dd6b937c96"},"bundle_signature":{"signature_status":"signed_v1","algorithm":"ed25519","key_id":"pith-v1-2026-05","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54","signature_b64":"r0viJrW3TSVwkLQP+UT/YG/50PVtKYZ5DJP1Qcnjsl/1Ou/7SHjFegBa4edIkLdnxA3qMkLz5h7lTfzT8Gt0AQ==","signed_message":"bundle_sha256_bytes","signed_at":"2026-05-31T17:57:20.343799Z","bundle_sha256":"71b6dad7059d21d264fddf0cc0c4459961af811ec8d90573a1262061a55fa5c3"}}