{"bundle_type":"pith_open_graph_bundle","bundle_version":"1.0","pith_number":"pith:2017:HNWSIOZJK5SFUUBMP2IIR5CKFB","short_pith_number":"pith:HNWSIOZJ","canonical_record":{"source":{"id":"1705.05879","kind":"arxiv","version":1},"metadata":{"license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"astro-ph.SR","submitted_at":"2017-05-16T19:16:10Z","cross_cats_sorted":[],"title_canon_sha256":"712eb9d1b8c82f097de36ae07b62297bdfa8a47668901cdac9218ca9dc12bbd1","abstract_canon_sha256":"548a3518b9b5521eb6f63c96c5ec54b653fb234688a5695c73576568f3dc9221"},"schema_version":"1.0"},"canonical_sha256":"3b6d243b2957645a502c7e9088f44a284d65f555898614a17c4a905adbb56ed6","source":{"kind":"arxiv","id":"1705.05879","version":1},"source_aliases":[{"alias_kind":"arxiv","alias_value":"1705.05879","created_at":"2026-05-18T00:31:12Z"},{"alias_kind":"arxiv_version","alias_value":"1705.05879v1","created_at":"2026-05-18T00:31:12Z"},{"alias_kind":"doi","alias_value":"10.48550/arxiv.1705.05879","created_at":"2026-05-18T00:31:12Z"},{"alias_kind":"pith_short_12","alias_value":"HNWSIOZJK5SF","created_at":"2026-05-18T12:31:18Z"},{"alias_kind":"pith_short_16","alias_value":"HNWSIOZJK5SFUUBM","created_at":"2026-05-18T12:31:18Z"},{"alias_kind":"pith_short_8","alias_value":"HNWSIOZJ","created_at":"2026-05-18T12:31:18Z"}],"events":[{"event_type":"record_created","subject_pith_number":"pith:2017:HNWSIOZJK5SFUUBMP2IIR5CKFB","target":"record","payload":{"canonical_record":{"source":{"id":"1705.05879","kind":"arxiv","version":1},"metadata":{"license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"astro-ph.SR","submitted_at":"2017-05-16T19:16:10Z","cross_cats_sorted":[],"title_canon_sha256":"712eb9d1b8c82f097de36ae07b62297bdfa8a47668901cdac9218ca9dc12bbd1","abstract_canon_sha256":"548a3518b9b5521eb6f63c96c5ec54b653fb234688a5695c73576568f3dc9221"},"schema_version":"1.0"},"canonical_sha256":"3b6d243b2957645a502c7e9088f44a284d65f555898614a17c4a905adbb56ed6","receipt":{"kind":"pith_receipt","key_id":"pith-v1-2026-05","algorithm":"ed25519","signed_at":"2026-05-18T00:31:12.770626Z","signature_b64":"nvksWMfMkva/7kgq5XddTkubwXPqyDur4MjYKy4xapp308TXM0/eG617TUy6GQgPY0wSB7wwfQvaX4cRt9ibCQ==","signed_message":"canonical_sha256_bytes","builder_version":"pith-number-builder-2026-05-17-v1","receipt_version":"0.3","canonical_sha256":"3b6d243b2957645a502c7e9088f44a284d65f555898614a17c4a905adbb56ed6","last_reissued_at":"2026-05-18T00:31:12.769957Z","signature_status":"signed_v1","first_computed_at":"2026-05-18T00:31:12.769957Z","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54"},"source_kind":"arxiv","source_id":"1705.05879","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":"2026-05-18T00:31:12Z","supersedes":[],"prev_event":null,"signature":{"signature_status":"signed_v1","algorithm":"ed25519","key_id":"pith-v1-2026-05","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54","signature_b64":"+kmh41e8e8q9UYjoLdA1H4V8mfFMK9as38wy1G80uyIIyG23xrJTgidFeAazl9J91Mo8Oe2U+y9tBGuOLzFcDw==","signed_message":"open_graph_event_sha256_bytes","signed_at":"2026-05-30T00:01:55.885467Z"},"content_sha256":"650072d03916db3d3f8451f10690631e914de3c26fcb425f7d9d8905b1a77b92","schema_version":"1.0","event_id":"sha256:650072d03916db3d3f8451f10690631e914de3c26fcb425f7d9d8905b1a77b92"},{"event_type":"graph_snapshot","subject_pith_number":"pith:2017:HNWSIOZJK5SFUUBMP2IIR5CKFB","target":"graph","payload":{"graph_snapshot":{"paper":{"title":"Evolutionary states of red-giant stars from grid-based modelling","license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","headline":"","cross_cats":[],"primary_cat":"astro-ph.SR","authors_text":"Earl Bellinger, Sarbani Basu, Saskia Hekker, Yvonne Elsworth","submitted_at":"2017-05-16T19:16:10Z","abstract_excerpt":"From its surface properties it can be difficult to determine whether a red-giant star is in its helium-core-burning phase or only burning hydrogen in a shell around an inert helium core. Stars in either of these stages can have similar effective temperatures, radii and hence luminosities, i.e. they can be located at the same position in the Hertzsprung-Russell diagram. Asteroseismology -- the study of the internal structure of stars through their global oscillations -- can provide the necessary additional constraints to determine the evolutionary states of red-giant stars. Here, we present a m"},"claims":{"count":0,"items":[],"snapshot_sha256":"258153158e38e3291e3d48162225fcdb2d5a3ed65a07baac614ab91432fd4f57"},"source":{"id":"1705.05879","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":"2026-05-18T00:31:12Z","supersedes":[],"prev_event":null,"signature":{"signature_status":"signed_v1","algorithm":"ed25519","key_id":"pith-v1-2026-05","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54","signature_b64":"27/gRjyzOtJFBScNQn3b+EDHIpIf3l11V9Hri+bu9+R3G9pYHKKMgXLLXt1zg46vIQD1CxENPsAV5jU7fQ/OBQ==","signed_message":"open_graph_event_sha256_bytes","signed_at":"2026-05-30T00:01:55.886143Z"},"content_sha256":"7ebc7c96952b297b0d9b1d3cab2121ac27c794613923406eaf6764ea70aa3f9e","schema_version":"1.0","event_id":"sha256:7ebc7c96952b297b0d9b1d3cab2121ac27c794613923406eaf6764ea70aa3f9e"}],"timestamp_proofs":[],"mirror_hints":[{"mirror_type":"https","name":"Pith Resolver","base_url":"https://pith.science","bundle_url":"https://pith.science/pith/HNWSIOZJK5SFUUBMP2IIR5CKFB/bundle.json","state_url":"https://pith.science/pith/HNWSIOZJK5SFUUBMP2IIR5CKFB/state.json","well_known_bundle_url":"https://pith.science/.well-known/pith/HNWSIOZJK5SFUUBMP2IIR5CKFB/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":"2026-05-30T00:01:55Z","links":{"resolver":"https://pith.science/pith/HNWSIOZJK5SFUUBMP2IIR5CKFB","bundle":"https://pith.science/pith/HNWSIOZJK5SFUUBMP2IIR5CKFB/bundle.json","state":"https://pith.science/pith/HNWSIOZJK5SFUUBMP2IIR5CKFB/state.json","well_known_bundle":"https://pith.science/.well-known/pith/HNWSIOZJK5SFUUBMP2IIR5CKFB/bundle.json"},"state":{"state_type":"pith_open_graph_state","state_version":"1.0","pith_number":"pith:2017:HNWSIOZJK5SFUUBMP2IIR5CKFB","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":"548a3518b9b5521eb6f63c96c5ec54b653fb234688a5695c73576568f3dc9221","cross_cats_sorted":[],"license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"astro-ph.SR","submitted_at":"2017-05-16T19:16:10Z","title_canon_sha256":"712eb9d1b8c82f097de36ae07b62297bdfa8a47668901cdac9218ca9dc12bbd1"},"schema_version":"1.0","source":{"id":"1705.05879","kind":"arxiv","version":1}},"source_aliases":[{"alias_kind":"arxiv","alias_value":"1705.05879","created_at":"2026-05-18T00:31:12Z"},{"alias_kind":"arxiv_version","alias_value":"1705.05879v1","created_at":"2026-05-18T00:31:12Z"},{"alias_kind":"doi","alias_value":"10.48550/arxiv.1705.05879","created_at":"2026-05-18T00:31:12Z"},{"alias_kind":"pith_short_12","alias_value":"HNWSIOZJK5SF","created_at":"2026-05-18T12:31:18Z"},{"alias_kind":"pith_short_16","alias_value":"HNWSIOZJK5SFUUBM","created_at":"2026-05-18T12:31:18Z"},{"alias_kind":"pith_short_8","alias_value":"HNWSIOZJ","created_at":"2026-05-18T12:31:18Z"}],"graph_snapshots":[{"event_id":"sha256:7ebc7c96952b297b0d9b1d3cab2121ac27c794613923406eaf6764ea70aa3f9e","target":"graph","created_at":"2026-05-18T00:31:12Z","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":"From its surface properties it can be difficult to determine whether a red-giant star is in its helium-core-burning phase or only burning hydrogen in a shell around an inert helium core. Stars in either of these stages can have similar effective temperatures, radii and hence luminosities, i.e. they can be located at the same position in the Hertzsprung-Russell diagram. Asteroseismology -- the study of the internal structure of stars through their global oscillations -- can provide the necessary additional constraints to determine the evolutionary states of red-giant stars. Here, we present a m","authors_text":"Earl Bellinger, Sarbani Basu, Saskia Hekker, Yvonne Elsworth","cross_cats":[],"headline":"","license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"astro-ph.SR","submitted_at":"2017-05-16T19:16:10Z","title":"Evolutionary states of red-giant stars from grid-based modelling"},"references":{"count":0,"internal_anchors":0,"resolved_work":0,"sample":[],"snapshot_sha256":"258153158e38e3291e3d48162225fcdb2d5a3ed65a07baac614ab91432fd4f57"},"source":{"id":"1705.05879","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":"sha256:650072d03916db3d3f8451f10690631e914de3c26fcb425f7d9d8905b1a77b92","target":"record","created_at":"2026-05-18T00:31:12Z","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":"548a3518b9b5521eb6f63c96c5ec54b653fb234688a5695c73576568f3dc9221","cross_cats_sorted":[],"license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"astro-ph.SR","submitted_at":"2017-05-16T19:16:10Z","title_canon_sha256":"712eb9d1b8c82f097de36ae07b62297bdfa8a47668901cdac9218ca9dc12bbd1"},"schema_version":"1.0","source":{"id":"1705.05879","kind":"arxiv","version":1}},"canonical_sha256":"3b6d243b2957645a502c7e9088f44a284d65f555898614a17c4a905adbb56ed6","receipt":{"algorithm":"ed25519","builder_version":"pith-number-builder-2026-05-17-v1","canonical_sha256":"3b6d243b2957645a502c7e9088f44a284d65f555898614a17c4a905adbb56ed6","first_computed_at":"2026-05-18T00:31:12.769957Z","key_id":"pith-v1-2026-05","kind":"pith_receipt","last_reissued_at":"2026-05-18T00:31:12.769957Z","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54","receipt_version":"0.3","signature_b64":"nvksWMfMkva/7kgq5XddTkubwXPqyDur4MjYKy4xapp308TXM0/eG617TUy6GQgPY0wSB7wwfQvaX4cRt9ibCQ==","signature_status":"signed_v1","signed_at":"2026-05-18T00:31:12.770626Z","signed_message":"canonical_sha256_bytes"},"source_id":"1705.05879","source_kind":"arxiv","source_version":1}}},"equivocations":[],"invalid_events":[],"applied_event_ids":["sha256:650072d03916db3d3f8451f10690631e914de3c26fcb425f7d9d8905b1a77b92","sha256:7ebc7c96952b297b0d9b1d3cab2121ac27c794613923406eaf6764ea70aa3f9e"],"state_sha256":"4af5468285db0c143760ba42ffa6c2ecd352214d63bdeb9d8fa11afe9af0cf80"},"bundle_signature":{"signature_status":"signed_v1","algorithm":"ed25519","key_id":"pith-v1-2026-05","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54","signature_b64":"8f987C7tK8EL7U3abXPfk29xpZagmXu2IUiNUYc4Xj9/NnjHvzwNQTSBUjG27WmeyqKogo2eWCdoepnIaNdZAA==","signed_message":"bundle_sha256_bytes","signed_at":"2026-05-30T00:01:55.890371Z","bundle_sha256":"2757f35094eba6ea4534485179467de6d9e69b1b474b57a6e86692a14db7432a"}}