{"bundle_type":"pith_open_graph_bundle","bundle_version":"1.0","pith_number":"pith:2011:JALM3DFMKL2ARWDIYAUGYBOWJU","short_pith_number":"pith:JALM3DFM","canonical_record":{"source":{"id":"1106.4791","kind":"arxiv","version":1},"metadata":{"license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"astro-ph.SR","submitted_at":"2011-06-23T18:49:57Z","cross_cats_sorted":["astro-ph.EP"],"title_canon_sha256":"75fa95e58326c07b1d674d00fee85c566f1fbbe3a5d1c0ebf7107e847fd61aca","abstract_canon_sha256":"80224e79b3ede700e1c7faaab5ae809913ee5aec5200311e952f0e603b6e72ac"},"schema_version":"1.0"},"canonical_sha256":"4816cd8cac52f408d868c0286c05d64d00dfa95fc6063dfcfcccac211f1d9b80","source":{"kind":"arxiv","id":"1106.4791","version":1},"source_aliases":[{"alias_kind":"arxiv","alias_value":"1106.4791","created_at":"2026-05-18T02:01:31Z"},{"alias_kind":"arxiv_version","alias_value":"1106.4791v1","created_at":"2026-05-18T02:01:31Z"},{"alias_kind":"doi","alias_value":"10.48550/arxiv.1106.4791","created_at":"2026-05-18T02:01:31Z"},{"alias_kind":"pith_short_12","alias_value":"JALM3DFMKL2A","created_at":"2026-05-18T12:26:32Z"},{"alias_kind":"pith_short_16","alias_value":"JALM3DFMKL2ARWDI","created_at":"2026-05-18T12:26:32Z"},{"alias_kind":"pith_short_8","alias_value":"JALM3DFM","created_at":"2026-05-18T12:26:32Z"}],"events":[{"event_type":"record_created","subject_pith_number":"pith:2011:JALM3DFMKL2ARWDIYAUGYBOWJU","target":"record","payload":{"canonical_record":{"source":{"id":"1106.4791","kind":"arxiv","version":1},"metadata":{"license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"astro-ph.SR","submitted_at":"2011-06-23T18:49:57Z","cross_cats_sorted":["astro-ph.EP"],"title_canon_sha256":"75fa95e58326c07b1d674d00fee85c566f1fbbe3a5d1c0ebf7107e847fd61aca","abstract_canon_sha256":"80224e79b3ede700e1c7faaab5ae809913ee5aec5200311e952f0e603b6e72ac"},"schema_version":"1.0"},"canonical_sha256":"4816cd8cac52f408d868c0286c05d64d00dfa95fc6063dfcfcccac211f1d9b80","receipt":{"kind":"pith_receipt","key_id":"pith-v1-2026-05","algorithm":"ed25519","signed_at":"2026-05-18T02:01:31.464008Z","signature_b64":"zQRRA0Rze/+z75FoxucW17HF8auG+493lDzT9DlzwEhlFLrUEbrO2D2UDM5eLiVkLnrNAeSWiiFM8i344NGkCQ==","signed_message":"canonical_sha256_bytes","builder_version":"pith-number-builder-2026-05-17-v1","receipt_version":"0.3","canonical_sha256":"4816cd8cac52f408d868c0286c05d64d00dfa95fc6063dfcfcccac211f1d9b80","last_reissued_at":"2026-05-18T02:01:31.463535Z","signature_status":"signed_v1","first_computed_at":"2026-05-18T02:01:31.463535Z","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54"},"source_kind":"arxiv","source_id":"1106.4791","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":"2026-05-18T02:01:31Z","supersedes":[],"prev_event":null,"signature":{"signature_status":"signed_v1","algorithm":"ed25519","key_id":"pith-v1-2026-05","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54","signature_b64":"tLxKil1zjuGYe5dBLNH8NbDkGt1HnLjxOX2hlhHdGeoiFoINpLTJFw2/rRKm8ZTkfzYw1eLz1orEZ1ZjmDDEAg==","signed_message":"open_graph_event_sha256_bytes","signed_at":"2026-06-02T08:04:28.878364Z"},"content_sha256":"f0ca74a20b9ba1f52aeed6a9b4cfa9fc948886e8320f63bef29700a1b3c26d0a","schema_version":"1.0","event_id":"sha256:f0ca74a20b9ba1f52aeed6a9b4cfa9fc948886e8320f63bef29700a1b3c26d0a"},{"event_type":"graph_snapshot","subject_pith_number":"pith:2011:JALM3DFMKL2ARWDIYAUGYBOWJU","target":"graph","payload":{"graph_snapshot":{"paper":{"title":"Excitation of spiral density waves by convection in accretion discs","license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","headline":"","cross_cats":["astro-ph.EP"],"primary_cat":"astro-ph.SR","authors_text":"G. R. Mamatsashvili, W. K. M. Rice","submitted_at":"2011-06-23T18:49:57Z","abstract_excerpt":"Motivated by the recent results of \\citet{Lesur_Ogilvie10} on the transport properties of incompressible convection in protoplanetary discs, in this paper we study the role of compressibility and hence of another basic mode -- spiral density waves -- in convective instability in discs. We analyse the linear dynamics of non-axisymmetric convection and spiral density waves in a Keplerian disc with superadiabatic vertical stratification using the local shearing box approach. It is demonstrated that the shear associated with Keplerian differential rotation introduces a novel phenomenon, it causes "},"claims":{"count":0,"items":[],"snapshot_sha256":"258153158e38e3291e3d48162225fcdb2d5a3ed65a07baac614ab91432fd4f57"},"source":{"id":"1106.4791","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":"2026-05-18T02:01:31Z","supersedes":[],"prev_event":null,"signature":{"signature_status":"signed_v1","algorithm":"ed25519","key_id":"pith-v1-2026-05","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54","signature_b64":"qBaHYknrX1SOlXuWN99tM3+JLAW0jhZRHHcOcmNS6iojjbobmNmk4MSq8dgoZ3D/qEnSuGruTX4uihz1kXcVBg==","signed_message":"open_graph_event_sha256_bytes","signed_at":"2026-06-02T08:04:28.878711Z"},"content_sha256":"27f1f7be3294a9b71ee5a715cc49e7fa4e58442c7b7c1a388b56aae84762df54","schema_version":"1.0","event_id":"sha256:27f1f7be3294a9b71ee5a715cc49e7fa4e58442c7b7c1a388b56aae84762df54"}],"timestamp_proofs":[],"mirror_hints":[{"mirror_type":"https","name":"Pith Resolver","base_url":"https://pith.science","bundle_url":"https://pith.science/pith/JALM3DFMKL2ARWDIYAUGYBOWJU/bundle.json","state_url":"https://pith.science/pith/JALM3DFMKL2ARWDIYAUGYBOWJU/state.json","well_known_bundle_url":"https://pith.science/.well-known/pith/JALM3DFMKL2ARWDIYAUGYBOWJU/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":"2026-06-02T08:04:28Z","links":{"resolver":"https://pith.science/pith/JALM3DFMKL2ARWDIYAUGYBOWJU","bundle":"https://pith.science/pith/JALM3DFMKL2ARWDIYAUGYBOWJU/bundle.json","state":"https://pith.science/pith/JALM3DFMKL2ARWDIYAUGYBOWJU/state.json","well_known_bundle":"https://pith.science/.well-known/pith/JALM3DFMKL2ARWDIYAUGYBOWJU/bundle.json"},"state":{"state_type":"pith_open_graph_state","state_version":"1.0","pith_number":"pith:2011:JALM3DFMKL2ARWDIYAUGYBOWJU","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":"80224e79b3ede700e1c7faaab5ae809913ee5aec5200311e952f0e603b6e72ac","cross_cats_sorted":["astro-ph.EP"],"license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"astro-ph.SR","submitted_at":"2011-06-23T18:49:57Z","title_canon_sha256":"75fa95e58326c07b1d674d00fee85c566f1fbbe3a5d1c0ebf7107e847fd61aca"},"schema_version":"1.0","source":{"id":"1106.4791","kind":"arxiv","version":1}},"source_aliases":[{"alias_kind":"arxiv","alias_value":"1106.4791","created_at":"2026-05-18T02:01:31Z"},{"alias_kind":"arxiv_version","alias_value":"1106.4791v1","created_at":"2026-05-18T02:01:31Z"},{"alias_kind":"doi","alias_value":"10.48550/arxiv.1106.4791","created_at":"2026-05-18T02:01:31Z"},{"alias_kind":"pith_short_12","alias_value":"JALM3DFMKL2A","created_at":"2026-05-18T12:26:32Z"},{"alias_kind":"pith_short_16","alias_value":"JALM3DFMKL2ARWDI","created_at":"2026-05-18T12:26:32Z"},{"alias_kind":"pith_short_8","alias_value":"JALM3DFM","created_at":"2026-05-18T12:26:32Z"}],"graph_snapshots":[{"event_id":"sha256:27f1f7be3294a9b71ee5a715cc49e7fa4e58442c7b7c1a388b56aae84762df54","target":"graph","created_at":"2026-05-18T02:01:31Z","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":"Motivated by the recent results of \\citet{Lesur_Ogilvie10} on the transport properties of incompressible convection in protoplanetary discs, in this paper we study the role of compressibility and hence of another basic mode -- spiral density waves -- in convective instability in discs. We analyse the linear dynamics of non-axisymmetric convection and spiral density waves in a Keplerian disc with superadiabatic vertical stratification using the local shearing box approach. It is demonstrated that the shear associated with Keplerian differential rotation introduces a novel phenomenon, it causes ","authors_text":"G. R. Mamatsashvili, W. K. M. Rice","cross_cats":["astro-ph.EP"],"headline":"","license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"astro-ph.SR","submitted_at":"2011-06-23T18:49:57Z","title":"Excitation of spiral density waves by convection in accretion discs"},"references":{"count":0,"internal_anchors":0,"resolved_work":0,"sample":[],"snapshot_sha256":"258153158e38e3291e3d48162225fcdb2d5a3ed65a07baac614ab91432fd4f57"},"source":{"id":"1106.4791","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:f0ca74a20b9ba1f52aeed6a9b4cfa9fc948886e8320f63bef29700a1b3c26d0a","target":"record","created_at":"2026-05-18T02:01:31Z","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":"80224e79b3ede700e1c7faaab5ae809913ee5aec5200311e952f0e603b6e72ac","cross_cats_sorted":["astro-ph.EP"],"license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"astro-ph.SR","submitted_at":"2011-06-23T18:49:57Z","title_canon_sha256":"75fa95e58326c07b1d674d00fee85c566f1fbbe3a5d1c0ebf7107e847fd61aca"},"schema_version":"1.0","source":{"id":"1106.4791","kind":"arxiv","version":1}},"canonical_sha256":"4816cd8cac52f408d868c0286c05d64d00dfa95fc6063dfcfcccac211f1d9b80","receipt":{"algorithm":"ed25519","builder_version":"pith-number-builder-2026-05-17-v1","canonical_sha256":"4816cd8cac52f408d868c0286c05d64d00dfa95fc6063dfcfcccac211f1d9b80","first_computed_at":"2026-05-18T02:01:31.463535Z","key_id":"pith-v1-2026-05","kind":"pith_receipt","last_reissued_at":"2026-05-18T02:01:31.463535Z","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54","receipt_version":"0.3","signature_b64":"zQRRA0Rze/+z75FoxucW17HF8auG+493lDzT9DlzwEhlFLrUEbrO2D2UDM5eLiVkLnrNAeSWiiFM8i344NGkCQ==","signature_status":"signed_v1","signed_at":"2026-05-18T02:01:31.464008Z","signed_message":"canonical_sha256_bytes"},"source_id":"1106.4791","source_kind":"arxiv","source_version":1}}},"equivocations":[],"invalid_events":[],"applied_event_ids":["sha256:f0ca74a20b9ba1f52aeed6a9b4cfa9fc948886e8320f63bef29700a1b3c26d0a","sha256:27f1f7be3294a9b71ee5a715cc49e7fa4e58442c7b7c1a388b56aae84762df54"],"state_sha256":"483d43013cb5b9e3f23c01908e8ae1a9817b78a8a0b76c645b2a6a27d35b9c2b"},"bundle_signature":{"signature_status":"signed_v1","algorithm":"ed25519","key_id":"pith-v1-2026-05","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54","signature_b64":"HXGPg7reLZfPCkSJnbruxWNix5jxaLGdAKLGR78ZkS/wn40wfAPwBmrR2o2HVw60IKoSEX3SGb0rWShtZdvYCA==","signed_message":"bundle_sha256_bytes","signed_at":"2026-06-02T08:04:28.880687Z","bundle_sha256":"c9b16059b9380273296c5a5c3a0ee4e07ad1d80e65cee7fb1572eb8f01747490"}}