{"bundle_type":"pith_open_graph_bundle","bundle_version":"1.0","pith_number":"pith:2011:WVSUP2FQXUNMLOWVFBLC6KYKZM","short_pith_number":"pith:WVSUP2FQ","canonical_record":{"source":{"id":"1112.0340","kind":"arxiv","version":1},"metadata":{"license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"astro-ph.CO","submitted_at":"2011-12-01T22:06:16Z","cross_cats_sorted":["physics.comp-ph"],"title_canon_sha256":"448dd07367b782e7f7381eecf8fea2fbf649bba30899f83db296ae0d3ea0f275","abstract_canon_sha256":"0fcceb3fa552d5302c65524da8413dc0b44cd761490e21e38aaea1c873914c62"},"schema_version":"1.0"},"canonical_sha256":"b56547e8b0bd1ac5bad528562f2b0acb0eabc23a65b7b8cae275ec990d212d19","source":{"kind":"arxiv","id":"1112.0340","version":1},"source_aliases":[{"alias_kind":"arxiv","alias_value":"1112.0340","created_at":"2026-05-18T01:59:18Z"},{"alias_kind":"arxiv_version","alias_value":"1112.0340v1","created_at":"2026-05-18T01:59:18Z"},{"alias_kind":"doi","alias_value":"10.48550/arxiv.1112.0340","created_at":"2026-05-18T01:59:18Z"},{"alias_kind":"pith_short_12","alias_value":"WVSUP2FQXUNM","created_at":"2026-05-18T12:26:44Z"},{"alias_kind":"pith_short_16","alias_value":"WVSUP2FQXUNMLOWV","created_at":"2026-05-18T12:26:44Z"},{"alias_kind":"pith_short_8","alias_value":"WVSUP2FQ","created_at":"2026-05-18T12:26:44Z"}],"events":[{"event_type":"record_created","subject_pith_number":"pith:2011:WVSUP2FQXUNMLOWVFBLC6KYKZM","target":"record","payload":{"canonical_record":{"source":{"id":"1112.0340","kind":"arxiv","version":1},"metadata":{"license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"astro-ph.CO","submitted_at":"2011-12-01T22:06:16Z","cross_cats_sorted":["physics.comp-ph"],"title_canon_sha256":"448dd07367b782e7f7381eecf8fea2fbf649bba30899f83db296ae0d3ea0f275","abstract_canon_sha256":"0fcceb3fa552d5302c65524da8413dc0b44cd761490e21e38aaea1c873914c62"},"schema_version":"1.0"},"canonical_sha256":"b56547e8b0bd1ac5bad528562f2b0acb0eabc23a65b7b8cae275ec990d212d19","receipt":{"kind":"pith_receipt","key_id":"pith-v1-2026-05","algorithm":"ed25519","signed_at":"2026-05-18T01:59:18.281142Z","signature_b64":"iGBV+c3H3ochARayN0IU/DfAxlW+uGSOf7KtH35w21//rCPcdiz7Gyn9vD6TV5p6uc1w3ecvspZ0EmL0hjOvAQ==","signed_message":"canonical_sha256_bytes","builder_version":"pith-number-builder-2026-05-17-v1","receipt_version":"0.3","canonical_sha256":"b56547e8b0bd1ac5bad528562f2b0acb0eabc23a65b7b8cae275ec990d212d19","last_reissued_at":"2026-05-18T01:59:18.280394Z","signature_status":"signed_v1","first_computed_at":"2026-05-18T01:59:18.280394Z","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54"},"source_kind":"arxiv","source_id":"1112.0340","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":"2026-05-18T01:59:18Z","supersedes":[],"prev_event":null,"signature":{"signature_status":"signed_v1","algorithm":"ed25519","key_id":"pith-v1-2026-05","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54","signature_b64":"lPhTz7pCzWtTaG9Q3isKWkz5Q8HYPU4PwSq5+EUiQIhWc+eh9CQcyDx+rbF128lGnGGBKnG67br/rAvs0K9bDA==","signed_message":"open_graph_event_sha256_bytes","signed_at":"2026-06-09T12:31:46.583172Z"},"content_sha256":"865bd42358c3c587ab50d2fc5685e324b93664dde54b3f3f144f371d66a5fc94","schema_version":"1.0","event_id":"sha256:865bd42358c3c587ab50d2fc5685e324b93664dde54b3f3f144f371d66a5fc94"},{"event_type":"graph_snapshot","subject_pith_number":"pith:2011:WVSUP2FQXUNMLOWVFBLC6KYKZM","target":"graph","payload":{"graph_snapshot":{"paper":{"title":"Cosmological Simulations using GCMHD+","license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","headline":"","cross_cats":["physics.comp-ph"],"primary_cat":"astro-ph.CO","authors_text":"Daisuke Kawata, David J. Barnes, Kinwah Wu","submitted_at":"2011-12-01T22:06:16Z","abstract_excerpt":"Radio observations of galaxy clusters show that the intra cluster medium is permeated by \\mu G magnetic fields. The origin and evolution of these cosmological magnetic fields is currently not well understood and so their impact on the dynamics of structure formation is not known. Numerical simulations are required to gain a greater understanding and produce predictions for the next generation of radio telescopes. We present the galactic chemodynamics smoothed particle magnetohydrodynamic (SPMHD) code (GCMHD+), which is an MHD implementation for the cosmological smoothed particle hydrodynamic c"},"claims":{"count":0,"items":[],"snapshot_sha256":"258153158e38e3291e3d48162225fcdb2d5a3ed65a07baac614ab91432fd4f57"},"source":{"id":"1112.0340","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":"2026-05-18T01:59:18Z","supersedes":[],"prev_event":null,"signature":{"signature_status":"signed_v1","algorithm":"ed25519","key_id":"pith-v1-2026-05","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54","signature_b64":"uFdkB49U+Op38bAI47yAS4bPJjuNlVhz6u8DRFdT8KOtwhT2ow160Qqro/z0ZQs2o8CWTLU1UDhR6JFwSEewDw==","signed_message":"open_graph_event_sha256_bytes","signed_at":"2026-06-09T12:31:46.583538Z"},"content_sha256":"8c348435ca2dfad42617b6cbf4958e04d209086937f42a6d2d69d2721052c6a5","schema_version":"1.0","event_id":"sha256:8c348435ca2dfad42617b6cbf4958e04d209086937f42a6d2d69d2721052c6a5"}],"timestamp_proofs":[],"mirror_hints":[{"mirror_type":"https","name":"Pith Resolver","base_url":"https://pith.science","bundle_url":"https://pith.science/pith/WVSUP2FQXUNMLOWVFBLC6KYKZM/bundle.json","state_url":"https://pith.science/pith/WVSUP2FQXUNMLOWVFBLC6KYKZM/state.json","well_known_bundle_url":"https://pith.science/.well-known/pith/WVSUP2FQXUNMLOWVFBLC6KYKZM/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":"2026-06-09T12:31:46Z","links":{"resolver":"https://pith.science/pith/WVSUP2FQXUNMLOWVFBLC6KYKZM","bundle":"https://pith.science/pith/WVSUP2FQXUNMLOWVFBLC6KYKZM/bundle.json","state":"https://pith.science/pith/WVSUP2FQXUNMLOWVFBLC6KYKZM/state.json","well_known_bundle":"https://pith.science/.well-known/pith/WVSUP2FQXUNMLOWVFBLC6KYKZM/bundle.json"},"state":{"state_type":"pith_open_graph_state","state_version":"1.0","pith_number":"pith:2011:WVSUP2FQXUNMLOWVFBLC6KYKZM","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":"0fcceb3fa552d5302c65524da8413dc0b44cd761490e21e38aaea1c873914c62","cross_cats_sorted":["physics.comp-ph"],"license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"astro-ph.CO","submitted_at":"2011-12-01T22:06:16Z","title_canon_sha256":"448dd07367b782e7f7381eecf8fea2fbf649bba30899f83db296ae0d3ea0f275"},"schema_version":"1.0","source":{"id":"1112.0340","kind":"arxiv","version":1}},"source_aliases":[{"alias_kind":"arxiv","alias_value":"1112.0340","created_at":"2026-05-18T01:59:18Z"},{"alias_kind":"arxiv_version","alias_value":"1112.0340v1","created_at":"2026-05-18T01:59:18Z"},{"alias_kind":"doi","alias_value":"10.48550/arxiv.1112.0340","created_at":"2026-05-18T01:59:18Z"},{"alias_kind":"pith_short_12","alias_value":"WVSUP2FQXUNM","created_at":"2026-05-18T12:26:44Z"},{"alias_kind":"pith_short_16","alias_value":"WVSUP2FQXUNMLOWV","created_at":"2026-05-18T12:26:44Z"},{"alias_kind":"pith_short_8","alias_value":"WVSUP2FQ","created_at":"2026-05-18T12:26:44Z"}],"graph_snapshots":[{"event_id":"sha256:8c348435ca2dfad42617b6cbf4958e04d209086937f42a6d2d69d2721052c6a5","target":"graph","created_at":"2026-05-18T01:59:18Z","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":"Radio observations of galaxy clusters show that the intra cluster medium is permeated by \\mu G magnetic fields. The origin and evolution of these cosmological magnetic fields is currently not well understood and so their impact on the dynamics of structure formation is not known. Numerical simulations are required to gain a greater understanding and produce predictions for the next generation of radio telescopes. We present the galactic chemodynamics smoothed particle magnetohydrodynamic (SPMHD) code (GCMHD+), which is an MHD implementation for the cosmological smoothed particle hydrodynamic c","authors_text":"Daisuke Kawata, David J. Barnes, Kinwah Wu","cross_cats":["physics.comp-ph"],"headline":"","license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"astro-ph.CO","submitted_at":"2011-12-01T22:06:16Z","title":"Cosmological Simulations using GCMHD+"},"references":{"count":0,"internal_anchors":0,"resolved_work":0,"sample":[],"snapshot_sha256":"258153158e38e3291e3d48162225fcdb2d5a3ed65a07baac614ab91432fd4f57"},"source":{"id":"1112.0340","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":"sha256:865bd42358c3c587ab50d2fc5685e324b93664dde54b3f3f144f371d66a5fc94","target":"record","created_at":"2026-05-18T01:59:18Z","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":"0fcceb3fa552d5302c65524da8413dc0b44cd761490e21e38aaea1c873914c62","cross_cats_sorted":["physics.comp-ph"],"license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"astro-ph.CO","submitted_at":"2011-12-01T22:06:16Z","title_canon_sha256":"448dd07367b782e7f7381eecf8fea2fbf649bba30899f83db296ae0d3ea0f275"},"schema_version":"1.0","source":{"id":"1112.0340","kind":"arxiv","version":1}},"canonical_sha256":"b56547e8b0bd1ac5bad528562f2b0acb0eabc23a65b7b8cae275ec990d212d19","receipt":{"algorithm":"ed25519","builder_version":"pith-number-builder-2026-05-17-v1","canonical_sha256":"b56547e8b0bd1ac5bad528562f2b0acb0eabc23a65b7b8cae275ec990d212d19","first_computed_at":"2026-05-18T01:59:18.280394Z","key_id":"pith-v1-2026-05","kind":"pith_receipt","last_reissued_at":"2026-05-18T01:59:18.280394Z","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54","receipt_version":"0.3","signature_b64":"iGBV+c3H3ochARayN0IU/DfAxlW+uGSOf7KtH35w21//rCPcdiz7Gyn9vD6TV5p6uc1w3ecvspZ0EmL0hjOvAQ==","signature_status":"signed_v1","signed_at":"2026-05-18T01:59:18.281142Z","signed_message":"canonical_sha256_bytes"},"source_id":"1112.0340","source_kind":"arxiv","source_version":1}}},"equivocations":[],"invalid_events":[],"applied_event_ids":["sha256:865bd42358c3c587ab50d2fc5685e324b93664dde54b3f3f144f371d66a5fc94","sha256:8c348435ca2dfad42617b6cbf4958e04d209086937f42a6d2d69d2721052c6a5"],"state_sha256":"12e9a21f690c7f8354427f7933dae1dfe3f2a6db9b1151ddcaa8c6a257fafd68"},"bundle_signature":{"signature_status":"signed_v1","algorithm":"ed25519","key_id":"pith-v1-2026-05","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54","signature_b64":"e5qtMO8LDvZSyuThLvGdd/MEQdr8qM55H7JO9e4U5d4FTvqBTyKr+6RTvn6RFo/DjJXrS8fsp5BxtEo0bCyhBA==","signed_message":"bundle_sha256_bytes","signed_at":"2026-06-09T12:31:46.585433Z","bundle_sha256":"370b221991e01bbf632dd5b3019ddd0936306c8dc6cdc260eb36831f6c7d447a"}}