{"bundle_type":"pith_open_graph_bundle","bundle_version":"1.0","pith_number":"pith:2016:LDYFUJQKBS2RZV7RD2AG4BOP77","short_pith_number":"pith:LDYFUJQK","canonical_record":{"source":{"id":"1612.03669","kind":"arxiv","version":1},"metadata":{"license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"astro-ph.SR","submitted_at":"2016-12-12T13:40:12Z","cross_cats_sorted":[],"title_canon_sha256":"1f4d0a1ad0d2cfcb4cc06c389982787bdea23353c6443b24b41352df363434dc","abstract_canon_sha256":"0ac4aedacd3a31232c33dc5f8457950f940c045c123da1c84a96738e2860ed46"},"schema_version":"1.0"},"canonical_sha256":"58f05a260a0cb51cd7f11e806e05cffff45a04b1c1b6e1f9a002504737a63f47","source":{"kind":"arxiv","id":"1612.03669","version":1},"source_aliases":[{"alias_kind":"arxiv","alias_value":"1612.03669","created_at":"2026-05-18T00:42:02Z"},{"alias_kind":"arxiv_version","alias_value":"1612.03669v1","created_at":"2026-05-18T00:42:02Z"},{"alias_kind":"doi","alias_value":"10.48550/arxiv.1612.03669","created_at":"2026-05-18T00:42:02Z"},{"alias_kind":"pith_short_12","alias_value":"LDYFUJQKBS2R","created_at":"2026-05-18T12:30:29Z"},{"alias_kind":"pith_short_16","alias_value":"LDYFUJQKBS2RZV7R","created_at":"2026-05-18T12:30:29Z"},{"alias_kind":"pith_short_8","alias_value":"LDYFUJQK","created_at":"2026-05-18T12:30:29Z"}],"events":[{"event_type":"record_created","subject_pith_number":"pith:2016:LDYFUJQKBS2RZV7RD2AG4BOP77","target":"record","payload":{"canonical_record":{"source":{"id":"1612.03669","kind":"arxiv","version":1},"metadata":{"license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"astro-ph.SR","submitted_at":"2016-12-12T13:40:12Z","cross_cats_sorted":[],"title_canon_sha256":"1f4d0a1ad0d2cfcb4cc06c389982787bdea23353c6443b24b41352df363434dc","abstract_canon_sha256":"0ac4aedacd3a31232c33dc5f8457950f940c045c123da1c84a96738e2860ed46"},"schema_version":"1.0"},"canonical_sha256":"58f05a260a0cb51cd7f11e806e05cffff45a04b1c1b6e1f9a002504737a63f47","receipt":{"kind":"pith_receipt","key_id":"pith-v1-2026-05","algorithm":"ed25519","signed_at":"2026-05-18T00:42:02.310676Z","signature_b64":"h75zTLCOdvfMBN8ZdHrfDZ9RTh0Bt7uyoxTwgIQbNv4Qk6deaeiCtC1BAmLLM9TEoJ+8qpKfG8UpqTteeZghDg==","signed_message":"canonical_sha256_bytes","builder_version":"pith-number-builder-2026-05-17-v1","receipt_version":"0.3","canonical_sha256":"58f05a260a0cb51cd7f11e806e05cffff45a04b1c1b6e1f9a002504737a63f47","last_reissued_at":"2026-05-18T00:42:02.310187Z","signature_status":"signed_v1","first_computed_at":"2026-05-18T00:42:02.310187Z","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54"},"source_kind":"arxiv","source_id":"1612.03669","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":"2026-05-18T00:42:02Z","supersedes":[],"prev_event":null,"signature":{"signature_status":"signed_v1","algorithm":"ed25519","key_id":"pith-v1-2026-05","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54","signature_b64":"RcTCFzRHIPkJc60g02A+RYVv67A3h7/DVbqyna5wlimIEb1Pkw0NeNNNk4tbZ7hBXp842pFmV7c7MOSeDIdwCQ==","signed_message":"open_graph_event_sha256_bytes","signed_at":"2026-05-19T11:38:32.277587Z"},"content_sha256":"0ac9ee417835cd1f713b1ad8513929e8874abab351862680efe787951369a6d6","schema_version":"1.0","event_id":"sha256:0ac9ee417835cd1f713b1ad8513929e8874abab351862680efe787951369a6d6"},{"event_type":"graph_snapshot","subject_pith_number":"pith:2016:LDYFUJQKBS2RZV7RD2AG4BOP77","target":"graph","payload":{"graph_snapshot":{"paper":{"title":"High-resolution spectroscopy of the extremely iron-poor post-AGB star CC Lyr","license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","headline":"","cross_cats":[],"primary_cat":"astro-ph.SR","authors_text":"Haining Li, Mudumba Parthasarathy, Satoshi Honda, Tadafumi Matsuno, Takuma Suda, Wako Aoki","submitted_at":"2016-12-12T13:40:12Z","abstract_excerpt":"High-resolution optical spectroscopy was conducted for the metal-poor post-AGB star CC Lyr to determine its chemical abundances and spectral line profiles. Our standard abundance analysis confirms its extremely low metallicity ([Fe/H]<-3.5) and a clear correlation between abundance ratios and the condensation temperature for 11 elements, indicating that dust depletion is the cause of the abundance anomaly of this object. The very low abundances of Sr and Ba, which are detected for the first time for this object, suggest that heavy neutron-capture elements are not significantly enhanced in this"},"claims":{"count":0,"items":[],"snapshot_sha256":"258153158e38e3291e3d48162225fcdb2d5a3ed65a07baac614ab91432fd4f57"},"source":{"id":"1612.03669","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":"2026-05-18T00:42:02Z","supersedes":[],"prev_event":null,"signature":{"signature_status":"signed_v1","algorithm":"ed25519","key_id":"pith-v1-2026-05","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54","signature_b64":"vBgLdnL0stuIcRR+bNV0Im6lAC1MAXxpFx5U/6n/dGnMRoTYXVdxQ6H7pGAvRWTPvXJgiFDBrISBlbbxxI6ZDw==","signed_message":"open_graph_event_sha256_bytes","signed_at":"2026-05-19T11:38:32.277938Z"},"content_sha256":"33ac8347d253645c62a20d252b026ca34f5c9f4038f5f487293dcf860fdabcae","schema_version":"1.0","event_id":"sha256:33ac8347d253645c62a20d252b026ca34f5c9f4038f5f487293dcf860fdabcae"}],"timestamp_proofs":[],"mirror_hints":[{"mirror_type":"https","name":"Pith Resolver","base_url":"https://pith.science","bundle_url":"https://pith.science/pith/LDYFUJQKBS2RZV7RD2AG4BOP77/bundle.json","state_url":"https://pith.science/pith/LDYFUJQKBS2RZV7RD2AG4BOP77/state.json","well_known_bundle_url":"https://pith.science/.well-known/pith/LDYFUJQKBS2RZV7RD2AG4BOP77/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":"2026-05-19T11:38:32Z","links":{"resolver":"https://pith.science/pith/LDYFUJQKBS2RZV7RD2AG4BOP77","bundle":"https://pith.science/pith/LDYFUJQKBS2RZV7RD2AG4BOP77/bundle.json","state":"https://pith.science/pith/LDYFUJQKBS2RZV7RD2AG4BOP77/state.json","well_known_bundle":"https://pith.science/.well-known/pith/LDYFUJQKBS2RZV7RD2AG4BOP77/bundle.json"},"state":{"state_type":"pith_open_graph_state","state_version":"1.0","pith_number":"pith:2016:LDYFUJQKBS2RZV7RD2AG4BOP77","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":"0ac4aedacd3a31232c33dc5f8457950f940c045c123da1c84a96738e2860ed46","cross_cats_sorted":[],"license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"astro-ph.SR","submitted_at":"2016-12-12T13:40:12Z","title_canon_sha256":"1f4d0a1ad0d2cfcb4cc06c389982787bdea23353c6443b24b41352df363434dc"},"schema_version":"1.0","source":{"id":"1612.03669","kind":"arxiv","version":1}},"source_aliases":[{"alias_kind":"arxiv","alias_value":"1612.03669","created_at":"2026-05-18T00:42:02Z"},{"alias_kind":"arxiv_version","alias_value":"1612.03669v1","created_at":"2026-05-18T00:42:02Z"},{"alias_kind":"doi","alias_value":"10.48550/arxiv.1612.03669","created_at":"2026-05-18T00:42:02Z"},{"alias_kind":"pith_short_12","alias_value":"LDYFUJQKBS2R","created_at":"2026-05-18T12:30:29Z"},{"alias_kind":"pith_short_16","alias_value":"LDYFUJQKBS2RZV7R","created_at":"2026-05-18T12:30:29Z"},{"alias_kind":"pith_short_8","alias_value":"LDYFUJQK","created_at":"2026-05-18T12:30:29Z"}],"graph_snapshots":[{"event_id":"sha256:33ac8347d253645c62a20d252b026ca34f5c9f4038f5f487293dcf860fdabcae","target":"graph","created_at":"2026-05-18T00:42:02Z","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":"High-resolution optical spectroscopy was conducted for the metal-poor post-AGB star CC Lyr to determine its chemical abundances and spectral line profiles. Our standard abundance analysis confirms its extremely low metallicity ([Fe/H]<-3.5) and a clear correlation between abundance ratios and the condensation temperature for 11 elements, indicating that dust depletion is the cause of the abundance anomaly of this object. The very low abundances of Sr and Ba, which are detected for the first time for this object, suggest that heavy neutron-capture elements are not significantly enhanced in this","authors_text":"Haining Li, Mudumba Parthasarathy, Satoshi Honda, Tadafumi Matsuno, Takuma Suda, Wako Aoki","cross_cats":[],"headline":"","license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"astro-ph.SR","submitted_at":"2016-12-12T13:40:12Z","title":"High-resolution spectroscopy of the extremely iron-poor post-AGB star CC Lyr"},"references":{"count":0,"internal_anchors":0,"resolved_work":0,"sample":[],"snapshot_sha256":"258153158e38e3291e3d48162225fcdb2d5a3ed65a07baac614ab91432fd4f57"},"source":{"id":"1612.03669","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":"sha256:0ac9ee417835cd1f713b1ad8513929e8874abab351862680efe787951369a6d6","target":"record","created_at":"2026-05-18T00:42:02Z","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":"0ac4aedacd3a31232c33dc5f8457950f940c045c123da1c84a96738e2860ed46","cross_cats_sorted":[],"license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"astro-ph.SR","submitted_at":"2016-12-12T13:40:12Z","title_canon_sha256":"1f4d0a1ad0d2cfcb4cc06c389982787bdea23353c6443b24b41352df363434dc"},"schema_version":"1.0","source":{"id":"1612.03669","kind":"arxiv","version":1}},"canonical_sha256":"58f05a260a0cb51cd7f11e806e05cffff45a04b1c1b6e1f9a002504737a63f47","receipt":{"algorithm":"ed25519","builder_version":"pith-number-builder-2026-05-17-v1","canonical_sha256":"58f05a260a0cb51cd7f11e806e05cffff45a04b1c1b6e1f9a002504737a63f47","first_computed_at":"2026-05-18T00:42:02.310187Z","key_id":"pith-v1-2026-05","kind":"pith_receipt","last_reissued_at":"2026-05-18T00:42:02.310187Z","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54","receipt_version":"0.3","signature_b64":"h75zTLCOdvfMBN8ZdHrfDZ9RTh0Bt7uyoxTwgIQbNv4Qk6deaeiCtC1BAmLLM9TEoJ+8qpKfG8UpqTteeZghDg==","signature_status":"signed_v1","signed_at":"2026-05-18T00:42:02.310676Z","signed_message":"canonical_sha256_bytes"},"source_id":"1612.03669","source_kind":"arxiv","source_version":1}}},"equivocations":[],"invalid_events":[],"applied_event_ids":["sha256:0ac9ee417835cd1f713b1ad8513929e8874abab351862680efe787951369a6d6","sha256:33ac8347d253645c62a20d252b026ca34f5c9f4038f5f487293dcf860fdabcae"],"state_sha256":"665bab3d3718daa829d2cfbf95cb22e526ec60555a1ed49b74d0ec74e23b7dc6"},"bundle_signature":{"signature_status":"signed_v1","algorithm":"ed25519","key_id":"pith-v1-2026-05","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54","signature_b64":"5EJyu1Tj9W1NT/HBKDMkcqx1J7wutkuVo56z9N8oV19oVnq3pOI4pJpeNGCgYTj7IuFXRRazlwq3jCvFJP5xDA==","signed_message":"bundle_sha256_bytes","signed_at":"2026-05-19T11:38:32.279716Z","bundle_sha256":"34e1f0a35fe3bfd56f286336e5aaf680b767712e8569fba6258d7a3b4b34d040"}}