{"bundle_type":"pith_open_graph_bundle","bundle_version":"1.0","pith_number":"pith:2019:V7UVSY4FTADOFZPN4UHYRKC5DN","short_pith_number":"pith:V7UVSY4F","canonical_record":{"source":{"id":"1905.00459","kind":"arxiv","version":1},"metadata":{"license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"astro-ph.SR","submitted_at":"2019-05-01T19:21:13Z","cross_cats_sorted":["astro-ph.GA"],"title_canon_sha256":"9110382808b4b287d0f5f78dbe7dcb80bf0dd9f8f15385ec5a44c4b7d54addb0","abstract_canon_sha256":"dccd2d5ee7ba3066d8a5c9a36ac66172c5a829bd35df328e34d701428aeb5244"},"schema_version":"1.0"},"canonical_sha256":"afe95963859806e2e5ede50f88a85d1b4387ed8392d75512091ef96cc3520bad","source":{"kind":"arxiv","id":"1905.00459","version":1},"source_aliases":[{"alias_kind":"arxiv","alias_value":"1905.00459","created_at":"2026-05-17T23:43:27Z"},{"alias_kind":"arxiv_version","alias_value":"1905.00459v1","created_at":"2026-05-17T23:43:27Z"},{"alias_kind":"doi","alias_value":"10.48550/arxiv.1905.00459","created_at":"2026-05-17T23:43:27Z"},{"alias_kind":"pith_short_12","alias_value":"V7UVSY4FTADO","created_at":"2026-05-18T12:33:30Z"},{"alias_kind":"pith_short_16","alias_value":"V7UVSY4FTADOFZPN","created_at":"2026-05-18T12:33:30Z"},{"alias_kind":"pith_short_8","alias_value":"V7UVSY4F","created_at":"2026-05-18T12:33:30Z"}],"events":[{"event_type":"record_created","subject_pith_number":"pith:2019:V7UVSY4FTADOFZPN4UHYRKC5DN","target":"record","payload":{"canonical_record":{"source":{"id":"1905.00459","kind":"arxiv","version":1},"metadata":{"license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"astro-ph.SR","submitted_at":"2019-05-01T19:21:13Z","cross_cats_sorted":["astro-ph.GA"],"title_canon_sha256":"9110382808b4b287d0f5f78dbe7dcb80bf0dd9f8f15385ec5a44c4b7d54addb0","abstract_canon_sha256":"dccd2d5ee7ba3066d8a5c9a36ac66172c5a829bd35df328e34d701428aeb5244"},"schema_version":"1.0"},"canonical_sha256":"afe95963859806e2e5ede50f88a85d1b4387ed8392d75512091ef96cc3520bad","receipt":{"kind":"pith_receipt","key_id":"pith-v1-2026-05","algorithm":"ed25519","signed_at":"2026-05-17T23:43:27.648244Z","signature_b64":"rOBRac0tQ0i9dyxAtJ+FZaBeRGGo+KJidnJulyvY8Kl8PxSd4gpuOSwqVFyReI+AQyZmprW0i3hQYRw8HfYZBw==","signed_message":"canonical_sha256_bytes","builder_version":"pith-number-builder-2026-05-17-v1","receipt_version":"0.3","canonical_sha256":"afe95963859806e2e5ede50f88a85d1b4387ed8392d75512091ef96cc3520bad","last_reissued_at":"2026-05-17T23:43:27.647645Z","signature_status":"signed_v1","first_computed_at":"2026-05-17T23:43:27.647645Z","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54"},"source_kind":"arxiv","source_id":"1905.00459","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":"2026-05-17T23:43:27Z","supersedes":[],"prev_event":null,"signature":{"signature_status":"signed_v1","algorithm":"ed25519","key_id":"pith-v1-2026-05","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54","signature_b64":"pDbyXTtFM6WS5Cd9BsObvp4xDpD4ljpjwAUAMCPmPZU6jFzIu4/J/uVEF3B9YwIFkZArOHclpJWAM6XBrV0wBA==","signed_message":"open_graph_event_sha256_bytes","signed_at":"2026-06-02T22:55:54.537964Z"},"content_sha256":"5b1fd52f307a402a25585989a2685622c12f354a8d2336f41dd32ecd9c9135f9","schema_version":"1.0","event_id":"sha256:5b1fd52f307a402a25585989a2685622c12f354a8d2336f41dd32ecd9c9135f9"},{"event_type":"graph_snapshot","subject_pith_number":"pith:2019:V7UVSY4FTADOFZPN4UHYRKC5DN","target":"graph","payload":{"graph_snapshot":{"paper":{"title":"Carbon Isotope Ratios in M10 Giants","license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","headline":"","cross_cats":["astro-ph.GA"],"primary_cat":"astro-ph.SR","authors_text":"Alex Deibel, C. A. Pilachowski, J. M. Gerber, Z. G. Maas","submitted_at":"2019-05-01T19:21:13Z","abstract_excerpt":"We measured carbon abundances and the $^{12}\\mathrm{C}/^{13}\\mathrm{C}$ ratio in 31 giant branch stars with previous CN and CH band measurements that span -2.33 $<$ M$_{\\rm V}$ $<$ 0.18 in the globular cluster M10 (NGC 6254). Abundances were determined by comparing CO features at $\\sim 2.3\\, \\mu \\mathrm{m}$ and specifically the $^{13}$CO bandhead at $2.37\\, \\mu \\mathrm{m}$, to synthetic spectra generated with MOOG. The observed spectra were obtained with GNIRS on Gemini North with a resolution of R $\\approx 3500$. The carbon abundances derived from the IR spectra agree with previous [C/Fe] mea"},"claims":{"count":0,"items":[],"snapshot_sha256":"258153158e38e3291e3d48162225fcdb2d5a3ed65a07baac614ab91432fd4f57"},"source":{"id":"1905.00459","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":"2026-05-17T23:43:27Z","supersedes":[],"prev_event":null,"signature":{"signature_status":"signed_v1","algorithm":"ed25519","key_id":"pith-v1-2026-05","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54","signature_b64":"TpvYsmwklCL+Wt1AXVo8evgnBWEx2GTEhkM59G/s7AiRrRbfz3mmaTc1D5OJxcjxD/McRfHbVEiZDodlYk7QAg==","signed_message":"open_graph_event_sha256_bytes","signed_at":"2026-06-02T22:55:54.538310Z"},"content_sha256":"a4b5536b980b259c6bbb3477c610e3ae3e35de977bf57cee9a7efd3f1ba942c8","schema_version":"1.0","event_id":"sha256:a4b5536b980b259c6bbb3477c610e3ae3e35de977bf57cee9a7efd3f1ba942c8"}],"timestamp_proofs":[],"mirror_hints":[{"mirror_type":"https","name":"Pith Resolver","base_url":"https://pith.science","bundle_url":"https://pith.science/pith/V7UVSY4FTADOFZPN4UHYRKC5DN/bundle.json","state_url":"https://pith.science/pith/V7UVSY4FTADOFZPN4UHYRKC5DN/state.json","well_known_bundle_url":"https://pith.science/.well-known/pith/V7UVSY4FTADOFZPN4UHYRKC5DN/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":"2026-06-02T22:55:54Z","links":{"resolver":"https://pith.science/pith/V7UVSY4FTADOFZPN4UHYRKC5DN","bundle":"https://pith.science/pith/V7UVSY4FTADOFZPN4UHYRKC5DN/bundle.json","state":"https://pith.science/pith/V7UVSY4FTADOFZPN4UHYRKC5DN/state.json","well_known_bundle":"https://pith.science/.well-known/pith/V7UVSY4FTADOFZPN4UHYRKC5DN/bundle.json"},"state":{"state_type":"pith_open_graph_state","state_version":"1.0","pith_number":"pith:2019:V7UVSY4FTADOFZPN4UHYRKC5DN","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":"dccd2d5ee7ba3066d8a5c9a36ac66172c5a829bd35df328e34d701428aeb5244","cross_cats_sorted":["astro-ph.GA"],"license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"astro-ph.SR","submitted_at":"2019-05-01T19:21:13Z","title_canon_sha256":"9110382808b4b287d0f5f78dbe7dcb80bf0dd9f8f15385ec5a44c4b7d54addb0"},"schema_version":"1.0","source":{"id":"1905.00459","kind":"arxiv","version":1}},"source_aliases":[{"alias_kind":"arxiv","alias_value":"1905.00459","created_at":"2026-05-17T23:43:27Z"},{"alias_kind":"arxiv_version","alias_value":"1905.00459v1","created_at":"2026-05-17T23:43:27Z"},{"alias_kind":"doi","alias_value":"10.48550/arxiv.1905.00459","created_at":"2026-05-17T23:43:27Z"},{"alias_kind":"pith_short_12","alias_value":"V7UVSY4FTADO","created_at":"2026-05-18T12:33:30Z"},{"alias_kind":"pith_short_16","alias_value":"V7UVSY4FTADOFZPN","created_at":"2026-05-18T12:33:30Z"},{"alias_kind":"pith_short_8","alias_value":"V7UVSY4F","created_at":"2026-05-18T12:33:30Z"}],"graph_snapshots":[{"event_id":"sha256:a4b5536b980b259c6bbb3477c610e3ae3e35de977bf57cee9a7efd3f1ba942c8","target":"graph","created_at":"2026-05-17T23:43:27Z","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 measured carbon abundances and the $^{12}\\mathrm{C}/^{13}\\mathrm{C}$ ratio in 31 giant branch stars with previous CN and CH band measurements that span -2.33 $<$ M$_{\\rm V}$ $<$ 0.18 in the globular cluster M10 (NGC 6254). Abundances were determined by comparing CO features at $\\sim 2.3\\, \\mu \\mathrm{m}$ and specifically the $^{13}$CO bandhead at $2.37\\, \\mu \\mathrm{m}$, to synthetic spectra generated with MOOG. The observed spectra were obtained with GNIRS on Gemini North with a resolution of R $\\approx 3500$. The carbon abundances derived from the IR spectra agree with previous [C/Fe] mea","authors_text":"Alex Deibel, C. A. Pilachowski, J. M. Gerber, Z. G. Maas","cross_cats":["astro-ph.GA"],"headline":"","license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"astro-ph.SR","submitted_at":"2019-05-01T19:21:13Z","title":"Carbon Isotope Ratios in M10 Giants"},"references":{"count":0,"internal_anchors":0,"resolved_work":0,"sample":[],"snapshot_sha256":"258153158e38e3291e3d48162225fcdb2d5a3ed65a07baac614ab91432fd4f57"},"source":{"id":"1905.00459","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":"sha256:5b1fd52f307a402a25585989a2685622c12f354a8d2336f41dd32ecd9c9135f9","target":"record","created_at":"2026-05-17T23:43:27Z","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":"dccd2d5ee7ba3066d8a5c9a36ac66172c5a829bd35df328e34d701428aeb5244","cross_cats_sorted":["astro-ph.GA"],"license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"astro-ph.SR","submitted_at":"2019-05-01T19:21:13Z","title_canon_sha256":"9110382808b4b287d0f5f78dbe7dcb80bf0dd9f8f15385ec5a44c4b7d54addb0"},"schema_version":"1.0","source":{"id":"1905.00459","kind":"arxiv","version":1}},"canonical_sha256":"afe95963859806e2e5ede50f88a85d1b4387ed8392d75512091ef96cc3520bad","receipt":{"algorithm":"ed25519","builder_version":"pith-number-builder-2026-05-17-v1","canonical_sha256":"afe95963859806e2e5ede50f88a85d1b4387ed8392d75512091ef96cc3520bad","first_computed_at":"2026-05-17T23:43:27.647645Z","key_id":"pith-v1-2026-05","kind":"pith_receipt","last_reissued_at":"2026-05-17T23:43:27.647645Z","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54","receipt_version":"0.3","signature_b64":"rOBRac0tQ0i9dyxAtJ+FZaBeRGGo+KJidnJulyvY8Kl8PxSd4gpuOSwqVFyReI+AQyZmprW0i3hQYRw8HfYZBw==","signature_status":"signed_v1","signed_at":"2026-05-17T23:43:27.648244Z","signed_message":"canonical_sha256_bytes"},"source_id":"1905.00459","source_kind":"arxiv","source_version":1}}},"equivocations":[],"invalid_events":[],"applied_event_ids":["sha256:5b1fd52f307a402a25585989a2685622c12f354a8d2336f41dd32ecd9c9135f9","sha256:a4b5536b980b259c6bbb3477c610e3ae3e35de977bf57cee9a7efd3f1ba942c8"],"state_sha256":"d15b0a1079bc3af7541f550a647de1e11500fc00fc5b3f94d332f47da48ed0d2"},"bundle_signature":{"signature_status":"signed_v1","algorithm":"ed25519","key_id":"pith-v1-2026-05","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54","signature_b64":"dl+Mb4FRsL1kWM+NVV8sIPKfktw11N7E/efFWeQ4V9g7zx7MwcfQ1MyfRMZny9+YqNTSJq5i1xqSY/i+JAEEDg==","signed_message":"bundle_sha256_bytes","signed_at":"2026-06-02T22:55:54.540266Z","bundle_sha256":"3218d6a1a34f8b1a85004bc11e0961109de0c40c752f07532bea1152df371972"}}