{"bundle_type":"pith_open_graph_bundle","bundle_version":"1.0","pith_number":"pith:2015:FZQQKOCAEW2P6P2MSSRSJ4QN2A","short_pith_number":"pith:FZQQKOCA","canonical_record":{"source":{"id":"1510.07414","kind":"arxiv","version":1},"metadata":{"license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"astro-ph.HE","submitted_at":"2015-10-26T09:24:48Z","cross_cats_sorted":[],"title_canon_sha256":"e70e5cc6208046dd2c0b11bddfa79a12a813999fca82d23ef0e7f358e1a977a1","abstract_canon_sha256":"bdec58a13750adac51879446b5fe204f8136bb08dfcae3820db8eef005772cc5"},"schema_version":"1.0"},"canonical_sha256":"2e6105384025b4ff3f4c94a324f20dd03747e7f65442b5fe9b1fd396d2b25405","source":{"kind":"arxiv","id":"1510.07414","version":1},"source_aliases":[{"alias_kind":"arxiv","alias_value":"1510.07414","created_at":"2026-05-18T00:11:44Z"},{"alias_kind":"arxiv_version","alias_value":"1510.07414v1","created_at":"2026-05-18T00:11:44Z"},{"alias_kind":"doi","alias_value":"10.48550/arxiv.1510.07414","created_at":"2026-05-18T00:11:44Z"},{"alias_kind":"pith_short_12","alias_value":"FZQQKOCAEW2P","created_at":"2026-05-18T12:29:22Z"},{"alias_kind":"pith_short_16","alias_value":"FZQQKOCAEW2P6P2M","created_at":"2026-05-18T12:29:22Z"},{"alias_kind":"pith_short_8","alias_value":"FZQQKOCA","created_at":"2026-05-18T12:29:22Z"}],"events":[{"event_type":"record_created","subject_pith_number":"pith:2015:FZQQKOCAEW2P6P2MSSRSJ4QN2A","target":"record","payload":{"canonical_record":{"source":{"id":"1510.07414","kind":"arxiv","version":1},"metadata":{"license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"astro-ph.HE","submitted_at":"2015-10-26T09:24:48Z","cross_cats_sorted":[],"title_canon_sha256":"e70e5cc6208046dd2c0b11bddfa79a12a813999fca82d23ef0e7f358e1a977a1","abstract_canon_sha256":"bdec58a13750adac51879446b5fe204f8136bb08dfcae3820db8eef005772cc5"},"schema_version":"1.0"},"canonical_sha256":"2e6105384025b4ff3f4c94a324f20dd03747e7f65442b5fe9b1fd396d2b25405","receipt":{"kind":"pith_receipt","key_id":"pith-v1-2026-05","algorithm":"ed25519","signed_at":"2026-05-18T00:11:44.242471Z","signature_b64":"PE0eMNMJn5wfP1cNk1TTWb+SF+8Pb4G073+y7WQlLgJ70eaPqcVlpRVLpAqAuiGRkPQ+cXIEl8JUCvquXSLICg==","signed_message":"canonical_sha256_bytes","builder_version":"pith-number-builder-2026-05-17-v1","receipt_version":"0.3","canonical_sha256":"2e6105384025b4ff3f4c94a324f20dd03747e7f65442b5fe9b1fd396d2b25405","last_reissued_at":"2026-05-18T00:11:44.241758Z","signature_status":"signed_v1","first_computed_at":"2026-05-18T00:11:44.241758Z","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54"},"source_kind":"arxiv","source_id":"1510.07414","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":"2026-05-18T00:11:44Z","supersedes":[],"prev_event":null,"signature":{"signature_status":"signed_v1","algorithm":"ed25519","key_id":"pith-v1-2026-05","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54","signature_b64":"g6RcGZTz+8mhciU7mNhRWPxLDsdzVn7EFHlWRIAL+yOkmt2zpxKwBmMNT0u/8n1ch0IRpEGtLxCA0aDVS1EZAA==","signed_message":"open_graph_event_sha256_bytes","signed_at":"2026-05-20T18:04:26.130439Z"},"content_sha256":"e319290cf72a2340d104d81938823dff55edb06eef7a5459a00ffb71104cb6b3","schema_version":"1.0","event_id":"sha256:e319290cf72a2340d104d81938823dff55edb06eef7a5459a00ffb71104cb6b3"},{"event_type":"graph_snapshot","subject_pith_number":"pith:2015:FZQQKOCAEW2P6P2MSSRSJ4QN2A","target":"graph","payload":{"graph_snapshot":{"paper":{"title":"Quasi-periodic oscillations from relativistic hydrodynamical slender tori","license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","headline":"","cross_cats":[],"primary_cat":"astro-ph.HE","authors_text":"A. Manousakis, B. Mishra, F. H. Vincent, P. C. Fragile, T. Paumard, W. Klu\\'zniak","submitted_at":"2015-10-26T09:24:48Z","abstract_excerpt":"We simulate an oscillating purely hydrodynamical torus with constant specific angular mo- mentum around a Schwarzschild black hole. The goal is to search for quasi-periodic oscil- lations (QPOs) in the light curve of the torus. The initial torus setup is subjected to radial, vertical and diagonal (combination of radial and vertical) velocity perturbations. The hydro- dynamical simulations are performed using the general relativistic magnetohydrodynamics code Cosmos++ and ray-traced using the GYOTO code. We found that a horizontal velocity perturbation triggers the radial and plus modes, while "},"claims":{"count":0,"items":[],"snapshot_sha256":"258153158e38e3291e3d48162225fcdb2d5a3ed65a07baac614ab91432fd4f57"},"source":{"id":"1510.07414","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":"2026-05-18T00:11:44Z","supersedes":[],"prev_event":null,"signature":{"signature_status":"signed_v1","algorithm":"ed25519","key_id":"pith-v1-2026-05","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54","signature_b64":"379oSuDl9BvBRO3d7IFqNDKGEw3BcRV0Rx2oSC0UDOHjv80G1RZnH1GB2HvQXkEhOyi7jaXTPWptaIwqxK8iDg==","signed_message":"open_graph_event_sha256_bytes","signed_at":"2026-05-20T18:04:26.130800Z"},"content_sha256":"b44e322980281c917cbd3dbf560ad2fb59b985e2eddbe610869da0cef8210b4c","schema_version":"1.0","event_id":"sha256:b44e322980281c917cbd3dbf560ad2fb59b985e2eddbe610869da0cef8210b4c"}],"timestamp_proofs":[],"mirror_hints":[{"mirror_type":"https","name":"Pith Resolver","base_url":"https://pith.science","bundle_url":"https://pith.science/pith/FZQQKOCAEW2P6P2MSSRSJ4QN2A/bundle.json","state_url":"https://pith.science/pith/FZQQKOCAEW2P6P2MSSRSJ4QN2A/state.json","well_known_bundle_url":"https://pith.science/.well-known/pith/FZQQKOCAEW2P6P2MSSRSJ4QN2A/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":"2026-05-20T18:04:26Z","links":{"resolver":"https://pith.science/pith/FZQQKOCAEW2P6P2MSSRSJ4QN2A","bundle":"https://pith.science/pith/FZQQKOCAEW2P6P2MSSRSJ4QN2A/bundle.json","state":"https://pith.science/pith/FZQQKOCAEW2P6P2MSSRSJ4QN2A/state.json","well_known_bundle":"https://pith.science/.well-known/pith/FZQQKOCAEW2P6P2MSSRSJ4QN2A/bundle.json"},"state":{"state_type":"pith_open_graph_state","state_version":"1.0","pith_number":"pith:2015:FZQQKOCAEW2P6P2MSSRSJ4QN2A","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":"bdec58a13750adac51879446b5fe204f8136bb08dfcae3820db8eef005772cc5","cross_cats_sorted":[],"license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"astro-ph.HE","submitted_at":"2015-10-26T09:24:48Z","title_canon_sha256":"e70e5cc6208046dd2c0b11bddfa79a12a813999fca82d23ef0e7f358e1a977a1"},"schema_version":"1.0","source":{"id":"1510.07414","kind":"arxiv","version":1}},"source_aliases":[{"alias_kind":"arxiv","alias_value":"1510.07414","created_at":"2026-05-18T00:11:44Z"},{"alias_kind":"arxiv_version","alias_value":"1510.07414v1","created_at":"2026-05-18T00:11:44Z"},{"alias_kind":"doi","alias_value":"10.48550/arxiv.1510.07414","created_at":"2026-05-18T00:11:44Z"},{"alias_kind":"pith_short_12","alias_value":"FZQQKOCAEW2P","created_at":"2026-05-18T12:29:22Z"},{"alias_kind":"pith_short_16","alias_value":"FZQQKOCAEW2P6P2M","created_at":"2026-05-18T12:29:22Z"},{"alias_kind":"pith_short_8","alias_value":"FZQQKOCA","created_at":"2026-05-18T12:29:22Z"}],"graph_snapshots":[{"event_id":"sha256:b44e322980281c917cbd3dbf560ad2fb59b985e2eddbe610869da0cef8210b4c","target":"graph","created_at":"2026-05-18T00:11:44Z","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 simulate an oscillating purely hydrodynamical torus with constant specific angular mo- mentum around a Schwarzschild black hole. The goal is to search for quasi-periodic oscil- lations (QPOs) in the light curve of the torus. The initial torus setup is subjected to radial, vertical and diagonal (combination of radial and vertical) velocity perturbations. The hydro- dynamical simulations are performed using the general relativistic magnetohydrodynamics code Cosmos++ and ray-traced using the GYOTO code. We found that a horizontal velocity perturbation triggers the radial and plus modes, while ","authors_text":"A. Manousakis, B. Mishra, F. H. Vincent, P. C. Fragile, T. Paumard, W. Klu\\'zniak","cross_cats":[],"headline":"","license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"astro-ph.HE","submitted_at":"2015-10-26T09:24:48Z","title":"Quasi-periodic oscillations from relativistic hydrodynamical slender tori"},"references":{"count":0,"internal_anchors":0,"resolved_work":0,"sample":[],"snapshot_sha256":"258153158e38e3291e3d48162225fcdb2d5a3ed65a07baac614ab91432fd4f57"},"source":{"id":"1510.07414","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:e319290cf72a2340d104d81938823dff55edb06eef7a5459a00ffb71104cb6b3","target":"record","created_at":"2026-05-18T00:11:44Z","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":"bdec58a13750adac51879446b5fe204f8136bb08dfcae3820db8eef005772cc5","cross_cats_sorted":[],"license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"astro-ph.HE","submitted_at":"2015-10-26T09:24:48Z","title_canon_sha256":"e70e5cc6208046dd2c0b11bddfa79a12a813999fca82d23ef0e7f358e1a977a1"},"schema_version":"1.0","source":{"id":"1510.07414","kind":"arxiv","version":1}},"canonical_sha256":"2e6105384025b4ff3f4c94a324f20dd03747e7f65442b5fe9b1fd396d2b25405","receipt":{"algorithm":"ed25519","builder_version":"pith-number-builder-2026-05-17-v1","canonical_sha256":"2e6105384025b4ff3f4c94a324f20dd03747e7f65442b5fe9b1fd396d2b25405","first_computed_at":"2026-05-18T00:11:44.241758Z","key_id":"pith-v1-2026-05","kind":"pith_receipt","last_reissued_at":"2026-05-18T00:11:44.241758Z","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54","receipt_version":"0.3","signature_b64":"PE0eMNMJn5wfP1cNk1TTWb+SF+8Pb4G073+y7WQlLgJ70eaPqcVlpRVLpAqAuiGRkPQ+cXIEl8JUCvquXSLICg==","signature_status":"signed_v1","signed_at":"2026-05-18T00:11:44.242471Z","signed_message":"canonical_sha256_bytes"},"source_id":"1510.07414","source_kind":"arxiv","source_version":1}}},"equivocations":[],"invalid_events":[],"applied_event_ids":["sha256:e319290cf72a2340d104d81938823dff55edb06eef7a5459a00ffb71104cb6b3","sha256:b44e322980281c917cbd3dbf560ad2fb59b985e2eddbe610869da0cef8210b4c"],"state_sha256":"fe10c81588719201aea4b6f508138eba8e2e029dd67a5522a0e0e8bb188ee443"},"bundle_signature":{"signature_status":"signed_v1","algorithm":"ed25519","key_id":"pith-v1-2026-05","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54","signature_b64":"WzN/7scSw52FJVK7XnOYLJBF4foxVhWo57r2AkcFcKwbh82FCH4lu0jSP4PJavKQRbX7Hn8J9WnflRWPccMwAw==","signed_message":"bundle_sha256_bytes","signed_at":"2026-05-20T18:04:26.132986Z","bundle_sha256":"01ff950223ea44de494cc23dea3fd5a2fe118ee70182cfaed50d0e7901324ec3"}}