{"bundle_type":"pith_open_graph_bundle","bundle_version":"1.0","pith_number":"pith:2020:6NWTYNNEKPD55DHYQS4LY535MF","short_pith_number":"pith:6NWTYNNE","canonical_record":{"source":{"id":"2011.04513","kind":"arxiv","version":3},"metadata":{"license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"astro-ph.SR","submitted_at":"2020-11-09T15:47:38Z","cross_cats_sorted":["astro-ph.HE"],"title_canon_sha256":"4adfb74b6b32780b2a2fa50d5911c9b7147ccb0014cec37e8e456732d8eda14c","abstract_canon_sha256":"6d55cc29fa7a8d5f1ba30fcabe883c6f2c89d3a5f368c6f85c53310cf21a0c1a"},"schema_version":"1.0"},"canonical_sha256":"f36d3c35a453c7de8cf884b8bc777d616b9e5a4c6027e3ffa143afdd2428130e","source":{"kind":"arxiv","id":"2011.04513","version":3},"source_aliases":[{"alias_kind":"arxiv","alias_value":"2011.04513","created_at":"2026-07-05T02:16:15Z"},{"alias_kind":"arxiv_version","alias_value":"2011.04513v3","created_at":"2026-07-05T02:16:15Z"},{"alias_kind":"doi","alias_value":"10.48550/arxiv.2011.04513","created_at":"2026-07-05T02:16:15Z"},{"alias_kind":"pith_short_12","alias_value":"6NWTYNNEKPD5","created_at":"2026-07-05T02:16:15Z"},{"alias_kind":"pith_short_16","alias_value":"6NWTYNNEKPD55DHY","created_at":"2026-07-05T02:16:15Z"},{"alias_kind":"pith_short_8","alias_value":"6NWTYNNE","created_at":"2026-07-05T02:16:15Z"}],"events":[{"event_type":"record_created","subject_pith_number":"pith:2020:6NWTYNNEKPD55DHYQS4LY535MF","target":"record","payload":{"canonical_record":{"source":{"id":"2011.04513","kind":"arxiv","version":3},"metadata":{"license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"astro-ph.SR","submitted_at":"2020-11-09T15:47:38Z","cross_cats_sorted":["astro-ph.HE"],"title_canon_sha256":"4adfb74b6b32780b2a2fa50d5911c9b7147ccb0014cec37e8e456732d8eda14c","abstract_canon_sha256":"6d55cc29fa7a8d5f1ba30fcabe883c6f2c89d3a5f368c6f85c53310cf21a0c1a"},"schema_version":"1.0"},"canonical_sha256":"f36d3c35a453c7de8cf884b8bc777d616b9e5a4c6027e3ffa143afdd2428130e","receipt":{"kind":"pith_receipt","key_id":"pith-v1-2026-05","algorithm":"ed25519","signed_at":"2026-07-05T02:16:15.929874Z","signature_b64":"nfiXD2Yyk1oAJMGG+zeKDDivGzPTqfSn6AjKwvwQPEGLjEUSQCGc7ciCU43lqW1k5hBIGwilTRNygSDAaZNZDA==","signed_message":"canonical_sha256_bytes","builder_version":"pith-number-builder-2026-05-17-v1","receipt_version":"0.3","canonical_sha256":"f36d3c35a453c7de8cf884b8bc777d616b9e5a4c6027e3ffa143afdd2428130e","last_reissued_at":"2026-07-05T02:16:15.929383Z","signature_status":"signed_v1","first_computed_at":"2026-07-05T02:16:15.929383Z","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54"},"source_kind":"arxiv","source_id":"2011.04513","source_version":3,"attestation_state":"computed"},"signer":{"signer_id":"pith.science","signer_type":"pith_registry","key_id":"pith-v1-2026-05","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54"},"created_at":"2026-07-05T02:16:15Z","supersedes":[],"prev_event":null,"signature":{"signature_status":"signed_v1","algorithm":"ed25519","key_id":"pith-v1-2026-05","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54","signature_b64":"JSlBIsSxADD1bMLQid0kBBD9FPIkr2Ikzu5jgJvIzavZeRP0+LXaODC37Yu6f6xo0QHngz1Q955i5vWiRclbDg==","signed_message":"open_graph_event_sha256_bytes","signed_at":"2026-08-03T21:15:24.071406Z"},"content_sha256":"abde718b109d0fa168e1b8a04d87d5e31ae72a4d086f1320ede55f91806535ff","schema_version":"1.0","event_id":"sha256:abde718b109d0fa168e1b8a04d87d5e31ae72a4d086f1320ede55f91806535ff"},{"event_type":"graph_snapshot","subject_pith_number":"pith:2020:6NWTYNNEKPD55DHYQS4LY535MF","target":"graph","payload":{"graph_snapshot":{"paper":{"title":"Multiple Stellar Evolution: a population synthesis algorithm to model the stellar, binary, and dynamical evolution of multiple-star systems","license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","headline":"","cross_cats":["astro-ph.HE"],"primary_cat":"astro-ph.SR","authors_text":"Adrian S. Hamers, Antti Rantala, Holly Preece, Patrick Neunteufel, Pavan Vynatheya","submitted_at":"2020-11-09T15:47:38Z","abstract_excerpt":"In recent years, observations have shown that multiple-star systems such as hierarchical triple and quadruple-star systems are common, especially among massive stars. They are potential sources of interesting astrophysical phenomena such as compact object mergers, leading to supernovae, and gravitational wave events. However, many uncertainties remain in their often complex evolution. Here, we present the population synthesis code Multiple Stellar Evolution (MSE), designed to rapidly model the stellar, binary, and dynamical evolution of multiple-star systems. MSE includes a number of new featu"},"claims":{"count":0,"items":[],"snapshot_sha256":"258153158e38e3291e3d48162225fcdb2d5a3ed65a07baac614ab91432fd4f57"},"source":{"id":"2011.04513","kind":"arxiv","version":3},"verdict":{"id":null,"model_set":{},"created_at":null,"strongest_claim":"","one_line_summary":"","pipeline_version":null,"weakest_assumption":"","pith_extraction_headline":""},"integrity":{"clean":true,"summary":{"advisory":0,"critical":0,"by_detector":{},"informational":0},"endpoint":"/pith/2011.04513/integrity.json","findings":[],"available":true,"detectors_run":[],"snapshot_sha256":"c28c3603d3b5d939e8dc4c7e95fa8dfce3d595e45f758748cecf8e644a296938"},"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":"2026-07-05T02:16:15Z","supersedes":[],"prev_event":null,"signature":{"signature_status":"signed_v1","algorithm":"ed25519","key_id":"pith-v1-2026-05","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54","signature_b64":"pVjV6m6rnjQpeosUJcBpFOcHMd0OWzasJ1/gwb0tPqzqmWONpW0iOjPufewqUz1+FVVvN/QOkaWtM/PB2FA9DA==","signed_message":"open_graph_event_sha256_bytes","signed_at":"2026-08-03T21:15:24.071781Z"},"content_sha256":"6e8a93a5752d40b1a1dd13f5f6660777c887a3ff7fc6155b7ed5142b4d218f19","schema_version":"1.0","event_id":"sha256:6e8a93a5752d40b1a1dd13f5f6660777c887a3ff7fc6155b7ed5142b4d218f19"}],"timestamp_proofs":[],"mirror_hints":[{"mirror_type":"https","name":"Pith Resolver","base_url":"https://pith.science","bundle_url":"https://pith.science/pith/6NWTYNNEKPD55DHYQS4LY535MF/bundle.json","state_url":"https://pith.science/pith/6NWTYNNEKPD55DHYQS4LY535MF/state.json","well_known_bundle_url":"https://pith.science/.well-known/pith/6NWTYNNEKPD55DHYQS4LY535MF/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":"2026-08-03T21:15:24Z","links":{"resolver":"https://pith.science/pith/6NWTYNNEKPD55DHYQS4LY535MF","bundle":"https://pith.science/pith/6NWTYNNEKPD55DHYQS4LY535MF/bundle.json","state":"https://pith.science/pith/6NWTYNNEKPD55DHYQS4LY535MF/state.json","well_known_bundle":"https://pith.science/.well-known/pith/6NWTYNNEKPD55DHYQS4LY535MF/bundle.json"},"state":{"state_type":"pith_open_graph_state","state_version":"1.0","pith_number":"pith:2020:6NWTYNNEKPD55DHYQS4LY535MF","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":"6d55cc29fa7a8d5f1ba30fcabe883c6f2c89d3a5f368c6f85c53310cf21a0c1a","cross_cats_sorted":["astro-ph.HE"],"license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"astro-ph.SR","submitted_at":"2020-11-09T15:47:38Z","title_canon_sha256":"4adfb74b6b32780b2a2fa50d5911c9b7147ccb0014cec37e8e456732d8eda14c"},"schema_version":"1.0","source":{"id":"2011.04513","kind":"arxiv","version":3}},"source_aliases":[{"alias_kind":"arxiv","alias_value":"2011.04513","created_at":"2026-07-05T02:16:15Z"},{"alias_kind":"arxiv_version","alias_value":"2011.04513v3","created_at":"2026-07-05T02:16:15Z"},{"alias_kind":"doi","alias_value":"10.48550/arxiv.2011.04513","created_at":"2026-07-05T02:16:15Z"},{"alias_kind":"pith_short_12","alias_value":"6NWTYNNEKPD5","created_at":"2026-07-05T02:16:15Z"},{"alias_kind":"pith_short_16","alias_value":"6NWTYNNEKPD55DHY","created_at":"2026-07-05T02:16:15Z"},{"alias_kind":"pith_short_8","alias_value":"6NWTYNNE","created_at":"2026-07-05T02:16:15Z"}],"graph_snapshots":[{"event_id":"sha256:6e8a93a5752d40b1a1dd13f5f6660777c887a3ff7fc6155b7ed5142b4d218f19","target":"graph","created_at":"2026-07-05T02:16:15Z","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"},"integrity":{"available":true,"clean":true,"detectors_run":[],"endpoint":"/pith/2011.04513/integrity.json","findings":[],"snapshot_sha256":"c28c3603d3b5d939e8dc4c7e95fa8dfce3d595e45f758748cecf8e644a296938","summary":{"advisory":0,"by_detector":{},"critical":0,"informational":0}},"paper":{"abstract_excerpt":"In recent years, observations have shown that multiple-star systems such as hierarchical triple and quadruple-star systems are common, especially among massive stars. They are potential sources of interesting astrophysical phenomena such as compact object mergers, leading to supernovae, and gravitational wave events. However, many uncertainties remain in their often complex evolution. Here, we present the population synthesis code Multiple Stellar Evolution (MSE), designed to rapidly model the stellar, binary, and dynamical evolution of multiple-star systems. MSE includes a number of new featu","authors_text":"Adrian S. Hamers, Antti Rantala, Holly Preece, Patrick Neunteufel, Pavan Vynatheya","cross_cats":["astro-ph.HE"],"headline":"","license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"astro-ph.SR","submitted_at":"2020-11-09T15:47:38Z","title":"Multiple Stellar Evolution: a population synthesis algorithm to model the stellar, binary, and dynamical evolution of multiple-star systems"},"references":{"count":0,"internal_anchors":0,"resolved_work":0,"sample":[],"snapshot_sha256":"258153158e38e3291e3d48162225fcdb2d5a3ed65a07baac614ab91432fd4f57"},"source":{"id":"2011.04513","kind":"arxiv","version":3},"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:abde718b109d0fa168e1b8a04d87d5e31ae72a4d086f1320ede55f91806535ff","target":"record","created_at":"2026-07-05T02:16:15Z","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":"6d55cc29fa7a8d5f1ba30fcabe883c6f2c89d3a5f368c6f85c53310cf21a0c1a","cross_cats_sorted":["astro-ph.HE"],"license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"astro-ph.SR","submitted_at":"2020-11-09T15:47:38Z","title_canon_sha256":"4adfb74b6b32780b2a2fa50d5911c9b7147ccb0014cec37e8e456732d8eda14c"},"schema_version":"1.0","source":{"id":"2011.04513","kind":"arxiv","version":3}},"canonical_sha256":"f36d3c35a453c7de8cf884b8bc777d616b9e5a4c6027e3ffa143afdd2428130e","receipt":{"algorithm":"ed25519","builder_version":"pith-number-builder-2026-05-17-v1","canonical_sha256":"f36d3c35a453c7de8cf884b8bc777d616b9e5a4c6027e3ffa143afdd2428130e","first_computed_at":"2026-07-05T02:16:15.929383Z","key_id":"pith-v1-2026-05","kind":"pith_receipt","last_reissued_at":"2026-07-05T02:16:15.929383Z","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54","receipt_version":"0.3","signature_b64":"nfiXD2Yyk1oAJMGG+zeKDDivGzPTqfSn6AjKwvwQPEGLjEUSQCGc7ciCU43lqW1k5hBIGwilTRNygSDAaZNZDA==","signature_status":"signed_v1","signed_at":"2026-07-05T02:16:15.929874Z","signed_message":"canonical_sha256_bytes"},"source_id":"2011.04513","source_kind":"arxiv","source_version":3}}},"equivocations":[],"invalid_events":[],"applied_event_ids":["sha256:abde718b109d0fa168e1b8a04d87d5e31ae72a4d086f1320ede55f91806535ff","sha256:6e8a93a5752d40b1a1dd13f5f6660777c887a3ff7fc6155b7ed5142b4d218f19"],"state_sha256":"ed1a1358782c462b8b2a26a45874e7e087f6f47698b4a030e432c9608eb69fc1"},"bundle_signature":{"signature_status":"signed_v1","algorithm":"ed25519","key_id":"pith-v1-2026-05","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54","signature_b64":"F3dRFn26S/sdQqAj0KF8/PGTuL1hepwfDM3VhxPIVi5lmzYcZHZzujsg1pDUUnQXsuL4EdAMW5qjOnR7+8XvDg==","signed_message":"bundle_sha256_bytes","signed_at":"2026-08-03T21:15:24.074326Z","bundle_sha256":"b0b610bf3c8687f62033c998feab85771e5e08f7b5a84b6d73adfd1fa231208f"}}