{"bundle_type":"pith_open_graph_bundle","bundle_version":"1.0","pith_number":"pith:2021:XRFKSBBN47HT3WC6JAVKYQYHKG","short_pith_number":"pith:XRFKSBBN","canonical_record":{"source":{"id":"2107.10849","kind":"arxiv","version":3},"metadata":{"license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"astro-ph.GA","submitted_at":"2021-07-22T18:00:00Z","cross_cats_sorted":[],"title_canon_sha256":"56640e60baef25d0f4843d27381e8fa8d6d35b6bbee2d32a6e09f508b873590a","abstract_canon_sha256":"9f8592b3ad0934b88e2d632bf406f7428e0648ef1e746b692b7b21d8bdcb56af"},"schema_version":"1.0"},"canonical_sha256":"bc4aa9042de7cf3dd85e482aac430751be8476853fac1eafe71a844d20a6bc99","source":{"kind":"arxiv","id":"2107.10849","version":3},"source_aliases":[{"alias_kind":"arxiv","alias_value":"2107.10849","created_at":"2026-07-05T05:26:33Z"},{"alias_kind":"arxiv_version","alias_value":"2107.10849v3","created_at":"2026-07-05T05:26:33Z"},{"alias_kind":"doi","alias_value":"10.48550/arxiv.2107.10849","created_at":"2026-07-05T05:26:33Z"},{"alias_kind":"pith_short_12","alias_value":"XRFKSBBN47HT","created_at":"2026-07-05T05:26:33Z"},{"alias_kind":"pith_short_16","alias_value":"XRFKSBBN47HT3WC6","created_at":"2026-07-05T05:26:33Z"},{"alias_kind":"pith_short_8","alias_value":"XRFKSBBN","created_at":"2026-07-05T05:26:33Z"}],"events":[{"event_type":"record_created","subject_pith_number":"pith:2021:XRFKSBBN47HT3WC6JAVKYQYHKG","target":"record","payload":{"canonical_record":{"source":{"id":"2107.10849","kind":"arxiv","version":3},"metadata":{"license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"astro-ph.GA","submitted_at":"2021-07-22T18:00:00Z","cross_cats_sorted":[],"title_canon_sha256":"56640e60baef25d0f4843d27381e8fa8d6d35b6bbee2d32a6e09f508b873590a","abstract_canon_sha256":"9f8592b3ad0934b88e2d632bf406f7428e0648ef1e746b692b7b21d8bdcb56af"},"schema_version":"1.0"},"canonical_sha256":"bc4aa9042de7cf3dd85e482aac430751be8476853fac1eafe71a844d20a6bc99","receipt":{"kind":"pith_receipt","key_id":"pith-v1-2026-05","algorithm":"ed25519","signed_at":"2026-07-05T05:26:33.653158Z","signature_b64":"PTuBidgH/AiUcepQV//6klKc2Tk3xQRZCKixSEwJMy7q2tLn5DNCDgNICx/j0KZ/6f8HlB+6cqEtCumMmt9UDg==","signed_message":"canonical_sha256_bytes","builder_version":"pith-number-builder-2026-05-17-v1","receipt_version":"0.3","canonical_sha256":"bc4aa9042de7cf3dd85e482aac430751be8476853fac1eafe71a844d20a6bc99","last_reissued_at":"2026-07-05T05:26:33.652691Z","signature_status":"signed_v1","first_computed_at":"2026-07-05T05:26:33.652691Z","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54"},"source_kind":"arxiv","source_id":"2107.10849","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":"2026-07-05T05:26:33Z","supersedes":[],"prev_event":null,"signature":{"signature_status":"signed_v1","algorithm":"ed25519","key_id":"pith-v1-2026-05","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54","signature_b64":"TJ+dvCyEHRR+r5OYsPqWNencQU0cobkLqT1/iVyrGcrtWKW50f9IN1ZGoe2Cgcdhc/LLYud8YvXl3LchB7m0Dw==","signed_message":"open_graph_event_sha256_bytes","signed_at":"2026-08-15T17:20:42.588126Z"},"content_sha256":"73869e22701967b8f661a9a92705cec27e313c28b5cb0cd011e547158ccafd21","schema_version":"1.0","event_id":"sha256:73869e22701967b8f661a9a92705cec27e313c28b5cb0cd011e547158ccafd21"},{"event_type":"graph_snapshot","subject_pith_number":"pith:2021:XRFKSBBN47HT3WC6JAVKYQYHKG","target":"graph","payload":{"graph_snapshot":{"paper":{"title":"The Pristine Dwarf-Galaxy survey -- IV. Probing the outskirts of the dwarf galaxy Bo\\\"otes I","license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","headline":"","cross_cats":[],"primary_cat":"astro-ph.GA","authors_text":"Alan W. McConnachie, Anke Arentsen, David S. Aguado, Else Starkenburg, Federico Sestito, Guillaume F. Thomas, Julio F. Navarro, Khyati Malhan, Nicolas Longeard, Nicolas Martin, Pascale Jablonka, Raymond G. Carlberg, Romain Lucchesi, Rub\\'en S\\'anchez-Janssen, Zhen Yuan","submitted_at":"2021-07-22T18:00:00Z","abstract_excerpt":"We present a new spectroscopic study of the dwarf galaxy Bootes I (Boo I) with data from the Anglo-Australian Telescope and its AAOmega spectrograph together with the Two Degree Field multi-object system. We observed 36 high-probability Boo I stars selected using Gaia Early Data Release 3 proper motions and photometric metallicities from the Pristine survey. Out of those, 27 are found to be Boo I's stars, resulting in an excellent success rate of 75% at finding new members. Our analysis uses a new pipeline developed to estimate radial velocities and equivalent widths of the calcium triplet lin"},"claims":{"count":0,"items":[],"snapshot_sha256":"258153158e38e3291e3d48162225fcdb2d5a3ed65a07baac614ab91432fd4f57"},"source":{"id":"2107.10849","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/2107.10849/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":"2026-07-05T05:26:33Z","supersedes":[],"prev_event":null,"signature":{"signature_status":"signed_v1","algorithm":"ed25519","key_id":"pith-v1-2026-05","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54","signature_b64":"rAscD6EyFyhzPmh2mgmMxsV2Jkik+uDOKBGjRlgwHLVkqFe2gAv3vQBPVuiVANUQX89TgM9of+517tlqtZUdCQ==","signed_message":"open_graph_event_sha256_bytes","signed_at":"2026-08-15T17:20:42.588664Z"},"content_sha256":"6a86a2681e9040b133d9156542b38867f0cfeba38a17e8e31c40f67dfa915273","schema_version":"1.0","event_id":"sha256:6a86a2681e9040b133d9156542b38867f0cfeba38a17e8e31c40f67dfa915273"}],"timestamp_proofs":[],"mirror_hints":[{"mirror_type":"https","name":"Pith Resolver","base_url":"https://pith.science","bundle_url":"https://pith.science/pith/XRFKSBBN47HT3WC6JAVKYQYHKG/bundle.json","state_url":"https://pith.science/pith/XRFKSBBN47HT3WC6JAVKYQYHKG/state.json","well_known_bundle_url":"https://pith.science/.well-known/pith/XRFKSBBN47HT3WC6JAVKYQYHKG/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":"2026-08-15T17:20:42Z","links":{"resolver":"https://pith.science/pith/XRFKSBBN47HT3WC6JAVKYQYHKG","bundle":"https://pith.science/pith/XRFKSBBN47HT3WC6JAVKYQYHKG/bundle.json","state":"https://pith.science/pith/XRFKSBBN47HT3WC6JAVKYQYHKG/state.json","well_known_bundle":"https://pith.science/.well-known/pith/XRFKSBBN47HT3WC6JAVKYQYHKG/bundle.json"},"state":{"state_type":"pith_open_graph_state","state_version":"1.0","pith_number":"pith:2021:XRFKSBBN47HT3WC6JAVKYQYHKG","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":"9f8592b3ad0934b88e2d632bf406f7428e0648ef1e746b692b7b21d8bdcb56af","cross_cats_sorted":[],"license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"astro-ph.GA","submitted_at":"2021-07-22T18:00:00Z","title_canon_sha256":"56640e60baef25d0f4843d27381e8fa8d6d35b6bbee2d32a6e09f508b873590a"},"schema_version":"1.0","source":{"id":"2107.10849","kind":"arxiv","version":3}},"source_aliases":[{"alias_kind":"arxiv","alias_value":"2107.10849","created_at":"2026-07-05T05:26:33Z"},{"alias_kind":"arxiv_version","alias_value":"2107.10849v3","created_at":"2026-07-05T05:26:33Z"},{"alias_kind":"doi","alias_value":"10.48550/arxiv.2107.10849","created_at":"2026-07-05T05:26:33Z"},{"alias_kind":"pith_short_12","alias_value":"XRFKSBBN47HT","created_at":"2026-07-05T05:26:33Z"},{"alias_kind":"pith_short_16","alias_value":"XRFKSBBN47HT3WC6","created_at":"2026-07-05T05:26:33Z"},{"alias_kind":"pith_short_8","alias_value":"XRFKSBBN","created_at":"2026-07-05T05:26:33Z"}],"graph_snapshots":[{"event_id":"sha256:6a86a2681e9040b133d9156542b38867f0cfeba38a17e8e31c40f67dfa915273","target":"graph","created_at":"2026-07-05T05:26:33Z","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/2107.10849/integrity.json","findings":[],"snapshot_sha256":"c28c3603d3b5d939e8dc4c7e95fa8dfce3d595e45f758748cecf8e644a296938","summary":{"advisory":0,"by_detector":{},"critical":0,"informational":0}},"paper":{"abstract_excerpt":"We present a new spectroscopic study of the dwarf galaxy Bootes I (Boo I) with data from the Anglo-Australian Telescope and its AAOmega spectrograph together with the Two Degree Field multi-object system. We observed 36 high-probability Boo I stars selected using Gaia Early Data Release 3 proper motions and photometric metallicities from the Pristine survey. Out of those, 27 are found to be Boo I's stars, resulting in an excellent success rate of 75% at finding new members. Our analysis uses a new pipeline developed to estimate radial velocities and equivalent widths of the calcium triplet lin","authors_text":"Alan W. McConnachie, Anke Arentsen, David S. Aguado, Else Starkenburg, Federico Sestito, Guillaume F. Thomas, Julio F. Navarro, Khyati Malhan, Nicolas Longeard, Nicolas Martin, Pascale Jablonka, Raymond G. Carlberg, Romain Lucchesi, Rub\\'en S\\'anchez-Janssen, Zhen Yuan","cross_cats":[],"headline":"","license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"astro-ph.GA","submitted_at":"2021-07-22T18:00:00Z","title":"The Pristine Dwarf-Galaxy survey -- IV. Probing the outskirts of the dwarf galaxy Bo\\\"otes I"},"references":{"count":0,"internal_anchors":0,"resolved_work":0,"sample":[],"snapshot_sha256":"258153158e38e3291e3d48162225fcdb2d5a3ed65a07baac614ab91432fd4f57"},"source":{"id":"2107.10849","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":"sha256:73869e22701967b8f661a9a92705cec27e313c28b5cb0cd011e547158ccafd21","target":"record","created_at":"2026-07-05T05:26:33Z","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":"9f8592b3ad0934b88e2d632bf406f7428e0648ef1e746b692b7b21d8bdcb56af","cross_cats_sorted":[],"license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"astro-ph.GA","submitted_at":"2021-07-22T18:00:00Z","title_canon_sha256":"56640e60baef25d0f4843d27381e8fa8d6d35b6bbee2d32a6e09f508b873590a"},"schema_version":"1.0","source":{"id":"2107.10849","kind":"arxiv","version":3}},"canonical_sha256":"bc4aa9042de7cf3dd85e482aac430751be8476853fac1eafe71a844d20a6bc99","receipt":{"algorithm":"ed25519","builder_version":"pith-number-builder-2026-05-17-v1","canonical_sha256":"bc4aa9042de7cf3dd85e482aac430751be8476853fac1eafe71a844d20a6bc99","first_computed_at":"2026-07-05T05:26:33.652691Z","key_id":"pith-v1-2026-05","kind":"pith_receipt","last_reissued_at":"2026-07-05T05:26:33.652691Z","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54","receipt_version":"0.3","signature_b64":"PTuBidgH/AiUcepQV//6klKc2Tk3xQRZCKixSEwJMy7q2tLn5DNCDgNICx/j0KZ/6f8HlB+6cqEtCumMmt9UDg==","signature_status":"signed_v1","signed_at":"2026-07-05T05:26:33.653158Z","signed_message":"canonical_sha256_bytes"},"source_id":"2107.10849","source_kind":"arxiv","source_version":3}}},"equivocations":[],"invalid_events":[],"applied_event_ids":["sha256:73869e22701967b8f661a9a92705cec27e313c28b5cb0cd011e547158ccafd21","sha256:6a86a2681e9040b133d9156542b38867f0cfeba38a17e8e31c40f67dfa915273"],"state_sha256":"455ae90f222c120fb2b18dfc33b12bf9fc58f40bf9ef204ddb61628cbe1df60f"},"bundle_signature":{"signature_status":"signed_v1","algorithm":"ed25519","key_id":"pith-v1-2026-05","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54","signature_b64":"rGH4cUI/Ue5YyBeOdkufm9bSvzXyWp2btSqpWwaNbo4rjwQtpURPDg83iVkYZC5lIDIXQa72KMHGjd7Jqd+TCA==","signed_message":"bundle_sha256_bytes","signed_at":"2026-08-15T17:20:42.594217Z","bundle_sha256":"636f7d1c92052dd9159b3a388b7b85c94f170ecea8e516f6b589803390319da1"}}