{"bundle_type":"pith_open_graph_bundle","bundle_version":"1.0","pith_number":"pith:2021:YGZ6ZJKBHVFQE2EWY5EY3MD7FE","short_pith_number":"pith:YGZ6ZJKB","canonical_record":{"source":{"id":"2108.01088","kind":"arxiv","version":2},"metadata":{"license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"astro-ph.SR","submitted_at":"2021-08-02T18:00:02Z","cross_cats_sorted":[],"title_canon_sha256":"1a2745d917872cef31daaee553fd33329d3b24914cbc332eec7f27d469a5916e","abstract_canon_sha256":"657beb2d2e790e7181231212b24e25cd5f6667704fed5d7f52ec2e2ff3d330f7"},"schema_version":"1.0"},"canonical_sha256":"c1b3eca5413d4b026896c7498db07f291cf573269783bf73a01bc9722ca86f3d","source":{"kind":"arxiv","id":"2108.01088","version":2},"source_aliases":[{"alias_kind":"arxiv","alias_value":"2108.01088","created_at":"2026-07-05T03:30:14Z"},{"alias_kind":"arxiv_version","alias_value":"2108.01088v2","created_at":"2026-07-05T03:30:14Z"},{"alias_kind":"doi","alias_value":"10.48550/arxiv.2108.01088","created_at":"2026-07-05T03:30:14Z"},{"alias_kind":"pith_short_12","alias_value":"YGZ6ZJKBHVFQ","created_at":"2026-07-05T03:30:14Z"},{"alias_kind":"pith_short_16","alias_value":"YGZ6ZJKBHVFQE2EW","created_at":"2026-07-05T03:30:14Z"},{"alias_kind":"pith_short_8","alias_value":"YGZ6ZJKB","created_at":"2026-07-05T03:30:14Z"}],"events":[{"event_type":"record_created","subject_pith_number":"pith:2021:YGZ6ZJKBHVFQE2EWY5EY3MD7FE","target":"record","payload":{"canonical_record":{"source":{"id":"2108.01088","kind":"arxiv","version":2},"metadata":{"license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"astro-ph.SR","submitted_at":"2021-08-02T18:00:02Z","cross_cats_sorted":[],"title_canon_sha256":"1a2745d917872cef31daaee553fd33329d3b24914cbc332eec7f27d469a5916e","abstract_canon_sha256":"657beb2d2e790e7181231212b24e25cd5f6667704fed5d7f52ec2e2ff3d330f7"},"schema_version":"1.0"},"canonical_sha256":"c1b3eca5413d4b026896c7498db07f291cf573269783bf73a01bc9722ca86f3d","receipt":{"kind":"pith_receipt","key_id":"pith-v1-2026-05","algorithm":"ed25519","signed_at":"2026-07-05T03:30:14.537391Z","signature_b64":"ThqO+ByVrLNdo7/wkn9vXuJK8maULSNLiQCfMC80GSyrixykuKtTEfgHe42fneGlveDgaq9nLhBMPfmI6JZcCg==","signed_message":"canonical_sha256_bytes","builder_version":"pith-number-builder-2026-05-17-v1","receipt_version":"0.3","canonical_sha256":"c1b3eca5413d4b026896c7498db07f291cf573269783bf73a01bc9722ca86f3d","last_reissued_at":"2026-07-05T03:30:14.536914Z","signature_status":"signed_v1","first_computed_at":"2026-07-05T03:30:14.536914Z","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54"},"source_kind":"arxiv","source_id":"2108.01088","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":"2026-07-05T03:30:14Z","supersedes":[],"prev_event":null,"signature":{"signature_status":"signed_v1","algorithm":"ed25519","key_id":"pith-v1-2026-05","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54","signature_b64":"CD3RnPvSRIereK3Hvu5Ks4HTntUQyZ+NxBS4njMGqmUGduhizcsvQu8T/hbG3BmZwRAKfgQAquzunguV4rAPAQ==","signed_message":"open_graph_event_sha256_bytes","signed_at":"2026-08-03T20:19:39.292583Z"},"content_sha256":"7d0652fda81332ece9a36c72f8869bebe16697e998943e842d2e075075d95a47","schema_version":"1.0","event_id":"sha256:7d0652fda81332ece9a36c72f8869bebe16697e998943e842d2e075075d95a47"},{"event_type":"graph_snapshot","subject_pith_number":"pith:2021:YGZ6ZJKBHVFQE2EWY5EY3MD7FE","target":"graph","payload":{"graph_snapshot":{"paper":{"title":"Magnetic and Rotational Evolution of $\\rho$ CrB from Asteroseismology with TESS","license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","headline":"","cross_cats":[],"primary_cat":"astro-ph.SR","authors_text":"Adam J. Finley, Daniel Huber, Derek Buzasi, Jennifer L. van Saders, Jeremy J. Drake, Keivan G. Stassun, Oleg Kochukhov, Ricky Egeland, Sallie Baliunas, Sarbani Basu, Savita Mathur, Steven H. Saar, Tiago L. Campante, Timo Reinhold, Travis S. Metcalfe, Victor See, Warrick H. Ball, Willie Soon","submitted_at":"2021-08-02T18:00:02Z","abstract_excerpt":"During the first half of main-sequence lifetimes, the evolution of rotation and magnetic activity in solar-type stars appears to be strongly coupled. Recent observations suggest that rotation rates evolve much more slowly beyond middle-age, while stellar activity continues to decline. We aim to characterize this mid-life transition by combining archival stellar activity data from the Mount Wilson Observatory with asteroseismology from the Transiting Exoplanet Survey Satellite (TESS). For two stars on opposite sides of the transition (88 Leo and $\\rho$ CrB), we independently assess the mean act"},"claims":{"count":0,"items":[],"snapshot_sha256":"258153158e38e3291e3d48162225fcdb2d5a3ed65a07baac614ab91432fd4f57"},"source":{"id":"2108.01088","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":""},"integrity":{"clean":true,"summary":{"advisory":0,"critical":0,"by_detector":{},"informational":0},"endpoint":"/pith/2108.01088/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":"2026-07-05T03:30:14Z","supersedes":[],"prev_event":null,"signature":{"signature_status":"signed_v1","algorithm":"ed25519","key_id":"pith-v1-2026-05","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54","signature_b64":"k4RaHQsg1Uj1seG9FSb7dUi0SbohFBIZlozuy1YyuueoJhsIlCViLKOeGxOiI+JWRnpn5Nnv3yhkQAT6sQ6+Ag==","signed_message":"open_graph_event_sha256_bytes","signed_at":"2026-08-03T20:19:39.293792Z"},"content_sha256":"890c1d9956385942130630e8a55c975610063422cfa60f73247ecfafb8faaf06","schema_version":"1.0","event_id":"sha256:890c1d9956385942130630e8a55c975610063422cfa60f73247ecfafb8faaf06"}],"timestamp_proofs":[],"mirror_hints":[{"mirror_type":"https","name":"Pith Resolver","base_url":"https://pith.science","bundle_url":"https://pith.science/pith/YGZ6ZJKBHVFQE2EWY5EY3MD7FE/bundle.json","state_url":"https://pith.science/pith/YGZ6ZJKBHVFQE2EWY5EY3MD7FE/state.json","well_known_bundle_url":"https://pith.science/.well-known/pith/YGZ6ZJKBHVFQE2EWY5EY3MD7FE/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":"2026-08-03T20:19:39Z","links":{"resolver":"https://pith.science/pith/YGZ6ZJKBHVFQE2EWY5EY3MD7FE","bundle":"https://pith.science/pith/YGZ6ZJKBHVFQE2EWY5EY3MD7FE/bundle.json","state":"https://pith.science/pith/YGZ6ZJKBHVFQE2EWY5EY3MD7FE/state.json","well_known_bundle":"https://pith.science/.well-known/pith/YGZ6ZJKBHVFQE2EWY5EY3MD7FE/bundle.json"},"state":{"state_type":"pith_open_graph_state","state_version":"1.0","pith_number":"pith:2021:YGZ6ZJKBHVFQE2EWY5EY3MD7FE","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":"657beb2d2e790e7181231212b24e25cd5f6667704fed5d7f52ec2e2ff3d330f7","cross_cats_sorted":[],"license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"astro-ph.SR","submitted_at":"2021-08-02T18:00:02Z","title_canon_sha256":"1a2745d917872cef31daaee553fd33329d3b24914cbc332eec7f27d469a5916e"},"schema_version":"1.0","source":{"id":"2108.01088","kind":"arxiv","version":2}},"source_aliases":[{"alias_kind":"arxiv","alias_value":"2108.01088","created_at":"2026-07-05T03:30:14Z"},{"alias_kind":"arxiv_version","alias_value":"2108.01088v2","created_at":"2026-07-05T03:30:14Z"},{"alias_kind":"doi","alias_value":"10.48550/arxiv.2108.01088","created_at":"2026-07-05T03:30:14Z"},{"alias_kind":"pith_short_12","alias_value":"YGZ6ZJKBHVFQ","created_at":"2026-07-05T03:30:14Z"},{"alias_kind":"pith_short_16","alias_value":"YGZ6ZJKBHVFQE2EW","created_at":"2026-07-05T03:30:14Z"},{"alias_kind":"pith_short_8","alias_value":"YGZ6ZJKB","created_at":"2026-07-05T03:30:14Z"}],"graph_snapshots":[{"event_id":"sha256:890c1d9956385942130630e8a55c975610063422cfa60f73247ecfafb8faaf06","target":"graph","created_at":"2026-07-05T03:30:14Z","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/2108.01088/integrity.json","findings":[],"snapshot_sha256":"c28c3603d3b5d939e8dc4c7e95fa8dfce3d595e45f758748cecf8e644a296938","summary":{"advisory":0,"by_detector":{},"critical":0,"informational":0}},"paper":{"abstract_excerpt":"During the first half of main-sequence lifetimes, the evolution of rotation and magnetic activity in solar-type stars appears to be strongly coupled. Recent observations suggest that rotation rates evolve much more slowly beyond middle-age, while stellar activity continues to decline. We aim to characterize this mid-life transition by combining archival stellar activity data from the Mount Wilson Observatory with asteroseismology from the Transiting Exoplanet Survey Satellite (TESS). For two stars on opposite sides of the transition (88 Leo and $\\rho$ CrB), we independently assess the mean act","authors_text":"Adam J. Finley, Daniel Huber, Derek Buzasi, Jennifer L. van Saders, Jeremy J. Drake, Keivan G. Stassun, Oleg Kochukhov, Ricky Egeland, Sallie Baliunas, Sarbani Basu, Savita Mathur, Steven H. Saar, Tiago L. Campante, Timo Reinhold, Travis S. Metcalfe, Victor See, Warrick H. Ball, Willie Soon","cross_cats":[],"headline":"","license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"astro-ph.SR","submitted_at":"2021-08-02T18:00:02Z","title":"Magnetic and Rotational Evolution of $\\rho$ CrB from Asteroseismology with TESS"},"references":{"count":0,"internal_anchors":0,"resolved_work":0,"sample":[],"snapshot_sha256":"258153158e38e3291e3d48162225fcdb2d5a3ed65a07baac614ab91432fd4f57"},"source":{"id":"2108.01088","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":"sha256:7d0652fda81332ece9a36c72f8869bebe16697e998943e842d2e075075d95a47","target":"record","created_at":"2026-07-05T03:30:14Z","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":"657beb2d2e790e7181231212b24e25cd5f6667704fed5d7f52ec2e2ff3d330f7","cross_cats_sorted":[],"license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"astro-ph.SR","submitted_at":"2021-08-02T18:00:02Z","title_canon_sha256":"1a2745d917872cef31daaee553fd33329d3b24914cbc332eec7f27d469a5916e"},"schema_version":"1.0","source":{"id":"2108.01088","kind":"arxiv","version":2}},"canonical_sha256":"c1b3eca5413d4b026896c7498db07f291cf573269783bf73a01bc9722ca86f3d","receipt":{"algorithm":"ed25519","builder_version":"pith-number-builder-2026-05-17-v1","canonical_sha256":"c1b3eca5413d4b026896c7498db07f291cf573269783bf73a01bc9722ca86f3d","first_computed_at":"2026-07-05T03:30:14.536914Z","key_id":"pith-v1-2026-05","kind":"pith_receipt","last_reissued_at":"2026-07-05T03:30:14.536914Z","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54","receipt_version":"0.3","signature_b64":"ThqO+ByVrLNdo7/wkn9vXuJK8maULSNLiQCfMC80GSyrixykuKtTEfgHe42fneGlveDgaq9nLhBMPfmI6JZcCg==","signature_status":"signed_v1","signed_at":"2026-07-05T03:30:14.537391Z","signed_message":"canonical_sha256_bytes"},"source_id":"2108.01088","source_kind":"arxiv","source_version":2}}},"equivocations":[],"invalid_events":[],"applied_event_ids":["sha256:7d0652fda81332ece9a36c72f8869bebe16697e998943e842d2e075075d95a47","sha256:890c1d9956385942130630e8a55c975610063422cfa60f73247ecfafb8faaf06"],"state_sha256":"4b0bb404acdb82e3b8d92ee699e2eec5503f32feecb2a6c91860549aacc4fc7e"},"bundle_signature":{"signature_status":"signed_v1","algorithm":"ed25519","key_id":"pith-v1-2026-05","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54","signature_b64":"Abnze37KSw+Ynt5JiInTB4rpdud48OlQJykGUGOQHz+Ajcy5MT7aWTaOvjjDakRXx5/k/NmwYTjP87jWCc5fAA==","signed_message":"bundle_sha256_bytes","signed_at":"2026-08-03T20:19:39.299697Z","bundle_sha256":"af89a40a98c450114b59247eb0da1887710fbcf3f950435da72995de83f458ee"}}