{"bundle_type":"pith_open_graph_bundle","bundle_version":"1.0","pith_number":"pith:2019:WVYTJO3PUSO432DB6QGCGHQDLR","short_pith_number":"pith:WVYTJO3P","canonical_record":{"source":{"id":"1903.01426","kind":"arxiv","version":2},"metadata":{"license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"astro-ph.SR","submitted_at":"2019-03-04T18:38:11Z","cross_cats_sorted":[],"title_canon_sha256":"a7ef3bbe66834064b711737ccce477cf55f9b883f342075f1a1d320d948cf40b","abstract_canon_sha256":"9cd822abd8ff6271cbf3b533598f34ef37b2b11425ae17ec45dfccb74eabea70"},"schema_version":"1.0"},"canonical_sha256":"b57134bb6fa49dcde861f40c231e035c474cb2ff572e30db4184d230577cba19","source":{"kind":"arxiv","id":"1903.01426","version":2},"source_aliases":[{"alias_kind":"arxiv","alias_value":"1903.01426","created_at":"2026-05-17T23:40:33Z"},{"alias_kind":"arxiv_version","alias_value":"1903.01426v2","created_at":"2026-05-17T23:40:33Z"},{"alias_kind":"doi","alias_value":"10.48550/arxiv.1903.01426","created_at":"2026-05-17T23:40:33Z"},{"alias_kind":"pith_short_12","alias_value":"WVYTJO3PUSO4","created_at":"2026-05-18T12:33:33Z"},{"alias_kind":"pith_short_16","alias_value":"WVYTJO3PUSO432DB","created_at":"2026-05-18T12:33:33Z"},{"alias_kind":"pith_short_8","alias_value":"WVYTJO3P","created_at":"2026-05-18T12:33:33Z"}],"events":[{"event_type":"record_created","subject_pith_number":"pith:2019:WVYTJO3PUSO432DB6QGCGHQDLR","target":"record","payload":{"canonical_record":{"source":{"id":"1903.01426","kind":"arxiv","version":2},"metadata":{"license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"astro-ph.SR","submitted_at":"2019-03-04T18:38:11Z","cross_cats_sorted":[],"title_canon_sha256":"a7ef3bbe66834064b711737ccce477cf55f9b883f342075f1a1d320d948cf40b","abstract_canon_sha256":"9cd822abd8ff6271cbf3b533598f34ef37b2b11425ae17ec45dfccb74eabea70"},"schema_version":"1.0"},"canonical_sha256":"b57134bb6fa49dcde861f40c231e035c474cb2ff572e30db4184d230577cba19","receipt":{"kind":"pith_receipt","key_id":"pith-v1-2026-05","algorithm":"ed25519","signed_at":"2026-05-17T23:40:33.197468Z","signature_b64":"Eci8fcyypoY4pxLVNFP8MXrqiNR0MNebuGOTKcBe8sSaZwA3dAoZGNt4q8VauH4FaFC6orj7WMvQYvZ7r2dWCA==","signed_message":"canonical_sha256_bytes","builder_version":"pith-number-builder-2026-05-17-v1","receipt_version":"0.3","canonical_sha256":"b57134bb6fa49dcde861f40c231e035c474cb2ff572e30db4184d230577cba19","last_reissued_at":"2026-05-17T23:40:33.196832Z","signature_status":"signed_v1","first_computed_at":"2026-05-17T23:40:33.196832Z","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54"},"source_kind":"arxiv","source_id":"1903.01426","source_version":2,"attestation_state":"computed"},"signer":{"signer_id":"pith.science","signer_type":"pith_registry","key_id":"pith-v1-2026-05","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54"},"created_at":"2026-05-17T23:40:33Z","supersedes":[],"prev_event":null,"signature":{"signature_status":"signed_v1","algorithm":"ed25519","key_id":"pith-v1-2026-05","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54","signature_b64":"ZFA4gZPCShioMXxAWS+RG4yIELd5sTks/qFs3y8HRfq7KpBOtcS/qIcezoyVBLNnm+qEi+cXxX6f+e91Q6nnAw==","signed_message":"open_graph_event_sha256_bytes","signed_at":"2026-05-26T06:52:53.144749Z"},"content_sha256":"add80c18f596fe9a0f8ffaad6827bc63e5cd29cad50cdcaa938d10ccd357ae2a","schema_version":"1.0","event_id":"sha256:add80c18f596fe9a0f8ffaad6827bc63e5cd29cad50cdcaa938d10ccd357ae2a"},{"event_type":"graph_snapshot","subject_pith_number":"pith:2019:WVYTJO3PUSO432DB6QGCGHQDLR","target":"graph","payload":{"graph_snapshot":{"paper":{"title":"Modules for Experiments in Stellar Astrophysics (MESA): Pulsating Variable Stars, Rotation, Convective Boundaries, and Energy Conservation","license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","headline":"","cross_cats":[],"primary_cat":"astro-ph.SR","authors_text":"Aaron Dotter, Adam S. Jermyn, A. Gautschy, Anne Thoul, Bill Paxton, F.X. Timmes, Jared A. Goldberg, Josiah Schwab, Lars Bildsten, Matteo Cantiello, Michael Zhang, Pablo Marchant, R. Farmer, Richard H. D. Townsend, R. Smolec, S.M. Kanbur, William M. Wolf","submitted_at":"2019-03-04T18:38:11Z","abstract_excerpt":"We update the capabilities of the open-knowledge software instrument Modules for Experiments in Stellar Astrophysics (MESA). RSP is a new functionality in MESAstar that models the non-linear radial stellar pulsations that characterize RR Lyrae, Cepheids, and other classes of variable stars. We significantly enhance numerical energy conservation capabilities, including during mass changes. For example, this enables calculations through the He flash that conserve energy to better than 0.001 %. To improve the modeling of rotating stars in MESA, we introduce a new approach to modifying the pressur"},"claims":{"count":0,"items":[],"snapshot_sha256":"258153158e38e3291e3d48162225fcdb2d5a3ed65a07baac614ab91432fd4f57"},"source":{"id":"1903.01426","kind":"arxiv","version":2},"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":"2026-05-17T23:40:33Z","supersedes":[],"prev_event":null,"signature":{"signature_status":"signed_v1","algorithm":"ed25519","key_id":"pith-v1-2026-05","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54","signature_b64":"DlqBkTGZJtZnRG7LftnKyUZzu6fniPgXBSZLmbVki5hhEMdoWAuWghsUKjeUFBa1sX1eoHNUL2HWCWSuuvNTAw==","signed_message":"open_graph_event_sha256_bytes","signed_at":"2026-05-26T06:52:53.145479Z"},"content_sha256":"3f761452c9c15582105d838adaf95200f2148c745806efc2ccb0f37d0ba9d2e7","schema_version":"1.0","event_id":"sha256:3f761452c9c15582105d838adaf95200f2148c745806efc2ccb0f37d0ba9d2e7"}],"timestamp_proofs":[],"mirror_hints":[{"mirror_type":"https","name":"Pith Resolver","base_url":"https://pith.science","bundle_url":"https://pith.science/pith/WVYTJO3PUSO432DB6QGCGHQDLR/bundle.json","state_url":"https://pith.science/pith/WVYTJO3PUSO432DB6QGCGHQDLR/state.json","well_known_bundle_url":"https://pith.science/.well-known/pith/WVYTJO3PUSO432DB6QGCGHQDLR/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":"2026-05-26T06:52:53Z","links":{"resolver":"https://pith.science/pith/WVYTJO3PUSO432DB6QGCGHQDLR","bundle":"https://pith.science/pith/WVYTJO3PUSO432DB6QGCGHQDLR/bundle.json","state":"https://pith.science/pith/WVYTJO3PUSO432DB6QGCGHQDLR/state.json","well_known_bundle":"https://pith.science/.well-known/pith/WVYTJO3PUSO432DB6QGCGHQDLR/bundle.json"},"state":{"state_type":"pith_open_graph_state","state_version":"1.0","pith_number":"pith:2019:WVYTJO3PUSO432DB6QGCGHQDLR","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":"9cd822abd8ff6271cbf3b533598f34ef37b2b11425ae17ec45dfccb74eabea70","cross_cats_sorted":[],"license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"astro-ph.SR","submitted_at":"2019-03-04T18:38:11Z","title_canon_sha256":"a7ef3bbe66834064b711737ccce477cf55f9b883f342075f1a1d320d948cf40b"},"schema_version":"1.0","source":{"id":"1903.01426","kind":"arxiv","version":2}},"source_aliases":[{"alias_kind":"arxiv","alias_value":"1903.01426","created_at":"2026-05-17T23:40:33Z"},{"alias_kind":"arxiv_version","alias_value":"1903.01426v2","created_at":"2026-05-17T23:40:33Z"},{"alias_kind":"doi","alias_value":"10.48550/arxiv.1903.01426","created_at":"2026-05-17T23:40:33Z"},{"alias_kind":"pith_short_12","alias_value":"WVYTJO3PUSO4","created_at":"2026-05-18T12:33:33Z"},{"alias_kind":"pith_short_16","alias_value":"WVYTJO3PUSO432DB","created_at":"2026-05-18T12:33:33Z"},{"alias_kind":"pith_short_8","alias_value":"WVYTJO3P","created_at":"2026-05-18T12:33:33Z"}],"graph_snapshots":[{"event_id":"sha256:3f761452c9c15582105d838adaf95200f2148c745806efc2ccb0f37d0ba9d2e7","target":"graph","created_at":"2026-05-17T23:40:33Z","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 update the capabilities of the open-knowledge software instrument Modules for Experiments in Stellar Astrophysics (MESA). RSP is a new functionality in MESAstar that models the non-linear radial stellar pulsations that characterize RR Lyrae, Cepheids, and other classes of variable stars. We significantly enhance numerical energy conservation capabilities, including during mass changes. For example, this enables calculations through the He flash that conserve energy to better than 0.001 %. To improve the modeling of rotating stars in MESA, we introduce a new approach to modifying the pressur","authors_text":"Aaron Dotter, Adam S. Jermyn, A. Gautschy, Anne Thoul, Bill Paxton, F.X. Timmes, Jared A. Goldberg, Josiah Schwab, Lars Bildsten, Matteo Cantiello, Michael Zhang, Pablo Marchant, R. Farmer, Richard H. D. Townsend, R. Smolec, S.M. Kanbur, William M. Wolf","cross_cats":[],"headline":"","license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"astro-ph.SR","submitted_at":"2019-03-04T18:38:11Z","title":"Modules for Experiments in Stellar Astrophysics (MESA): Pulsating Variable Stars, Rotation, Convective Boundaries, and Energy Conservation"},"references":{"count":0,"internal_anchors":0,"resolved_work":0,"sample":[],"snapshot_sha256":"258153158e38e3291e3d48162225fcdb2d5a3ed65a07baac614ab91432fd4f57"},"source":{"id":"1903.01426","kind":"arxiv","version":2},"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:add80c18f596fe9a0f8ffaad6827bc63e5cd29cad50cdcaa938d10ccd357ae2a","target":"record","created_at":"2026-05-17T23:40:33Z","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":"9cd822abd8ff6271cbf3b533598f34ef37b2b11425ae17ec45dfccb74eabea70","cross_cats_sorted":[],"license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"astro-ph.SR","submitted_at":"2019-03-04T18:38:11Z","title_canon_sha256":"a7ef3bbe66834064b711737ccce477cf55f9b883f342075f1a1d320d948cf40b"},"schema_version":"1.0","source":{"id":"1903.01426","kind":"arxiv","version":2}},"canonical_sha256":"b57134bb6fa49dcde861f40c231e035c474cb2ff572e30db4184d230577cba19","receipt":{"algorithm":"ed25519","builder_version":"pith-number-builder-2026-05-17-v1","canonical_sha256":"b57134bb6fa49dcde861f40c231e035c474cb2ff572e30db4184d230577cba19","first_computed_at":"2026-05-17T23:40:33.196832Z","key_id":"pith-v1-2026-05","kind":"pith_receipt","last_reissued_at":"2026-05-17T23:40:33.196832Z","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54","receipt_version":"0.3","signature_b64":"Eci8fcyypoY4pxLVNFP8MXrqiNR0MNebuGOTKcBe8sSaZwA3dAoZGNt4q8VauH4FaFC6orj7WMvQYvZ7r2dWCA==","signature_status":"signed_v1","signed_at":"2026-05-17T23:40:33.197468Z","signed_message":"canonical_sha256_bytes"},"source_id":"1903.01426","source_kind":"arxiv","source_version":2}}},"equivocations":[],"invalid_events":[],"applied_event_ids":["sha256:add80c18f596fe9a0f8ffaad6827bc63e5cd29cad50cdcaa938d10ccd357ae2a","sha256:3f761452c9c15582105d838adaf95200f2148c745806efc2ccb0f37d0ba9d2e7"],"state_sha256":"7171095053eeb6b3b5547b97af4b68f83204c62cf5b30d7684fb8406edd8479b"},"bundle_signature":{"signature_status":"signed_v1","algorithm":"ed25519","key_id":"pith-v1-2026-05","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54","signature_b64":"s46GYwqkXniwb8YfqHizI9Ce8b7PYNCoyTKcDncjFKUXTJDaL/pD8e4ZAjatsGnltFylaJQq8pq1DvB0oml5Bg==","signed_message":"bundle_sha256_bytes","signed_at":"2026-05-26T06:52:53.149488Z","bundle_sha256":"a1c0507d1b6a21b5698ab115b3f5fab3287108a244c9b2c12555574c14b3fec0"}}