{"bundle_type":"pith_open_graph_bundle","bundle_version":"1.0","pith_number":"pith:2021:Q36UFAWNQGAVECLDTEHZFCQHEC","short_pith_number":"pith:Q36UFAWN","canonical_record":{"source":{"id":"2112.11974","kind":"arxiv","version":1},"metadata":{"license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"astro-ph.SR","submitted_at":"2021-12-22T15:44:45Z","cross_cats_sorted":["astro-ph.GA"],"title_canon_sha256":"7ebc8a1dccae61da51e7ff55375a01deb4aa321531e568977433c19910c03edc","abstract_canon_sha256":"2bf4fa96686dda95d94743513f5ef8e8ef9113c322a74434140ab4e6ef56de0f"},"schema_version":"1.0"},"canonical_sha256":"86fd4282cd8181520963990f928a07208cdac9d26d4b5f216824a425be42d15f","source":{"kind":"arxiv","id":"2112.11974","version":1},"source_aliases":[{"alias_kind":"arxiv","alias_value":"2112.11974","created_at":"2026-07-05T04:09:43Z"},{"alias_kind":"arxiv_version","alias_value":"2112.11974v1","created_at":"2026-07-05T04:09:43Z"},{"alias_kind":"doi","alias_value":"10.48550/arxiv.2112.11974","created_at":"2026-07-05T04:09:43Z"},{"alias_kind":"pith_short_12","alias_value":"Q36UFAWNQGAV","created_at":"2026-07-05T04:09:43Z"},{"alias_kind":"pith_short_16","alias_value":"Q36UFAWNQGAVECLD","created_at":"2026-07-05T04:09:43Z"},{"alias_kind":"pith_short_8","alias_value":"Q36UFAWN","created_at":"2026-07-05T04:09:43Z"}],"events":[{"event_type":"record_created","subject_pith_number":"pith:2021:Q36UFAWNQGAVECLDTEHZFCQHEC","target":"record","payload":{"canonical_record":{"source":{"id":"2112.11974","kind":"arxiv","version":1},"metadata":{"license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"astro-ph.SR","submitted_at":"2021-12-22T15:44:45Z","cross_cats_sorted":["astro-ph.GA"],"title_canon_sha256":"7ebc8a1dccae61da51e7ff55375a01deb4aa321531e568977433c19910c03edc","abstract_canon_sha256":"2bf4fa96686dda95d94743513f5ef8e8ef9113c322a74434140ab4e6ef56de0f"},"schema_version":"1.0"},"canonical_sha256":"86fd4282cd8181520963990f928a07208cdac9d26d4b5f216824a425be42d15f","receipt":{"kind":"pith_receipt","key_id":"pith-v1-2026-05","algorithm":"ed25519","signed_at":"2026-07-05T04:09:43.426208Z","signature_b64":"uz7PZ/uu4E40jElwPWauOeyQxzxo2/y4u908t3XwulMVbVG82S5dJLCle26vqILGjqejY1Gtto2JkQZfKyshBw==","signed_message":"canonical_sha256_bytes","builder_version":"pith-number-builder-2026-05-17-v1","receipt_version":"0.3","canonical_sha256":"86fd4282cd8181520963990f928a07208cdac9d26d4b5f216824a425be42d15f","last_reissued_at":"2026-07-05T04:09:43.425784Z","signature_status":"signed_v1","first_computed_at":"2026-07-05T04:09:43.425784Z","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54"},"source_kind":"arxiv","source_id":"2112.11974","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":"2026-07-05T04:09:43Z","supersedes":[],"prev_event":null,"signature":{"signature_status":"signed_v1","algorithm":"ed25519","key_id":"pith-v1-2026-05","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54","signature_b64":"Wdc74PAv0rMGCB9wLB39JAGZ54htZwOH6PH+7O94sKI9GYLgUdFZ3TbBWCbyHqOnnt+jcEdV0HybsoAP5Fg/Aw==","signed_message":"open_graph_event_sha256_bytes","signed_at":"2026-07-05T12:54:57.793279Z"},"content_sha256":"2a8cc9a574d55ebf49a8021e563d0e143240343fd85b2cbf0f3a63d7bbccf2a0","schema_version":"1.0","event_id":"sha256:2a8cc9a574d55ebf49a8021e563d0e143240343fd85b2cbf0f3a63d7bbccf2a0"},{"event_type":"graph_snapshot","subject_pith_number":"pith:2021:Q36UFAWNQGAVECLDTEHZFCQHEC","target":"graph","payload":{"graph_snapshot":{"paper":{"title":"The Gaia-ESO Survey: Target selection of open cluster stars","license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","headline":"","cross_cats":["astro-ph.GA"],"primary_cat":"astro-ph.SR","authors_text":"A. Bragaglia, A. Gonneau, A. Hourihane, A. Spagna, A. Vallenari, C. Hayes, C. Jordi, D. Hatztidimitriou, E. Alfaro, E.D. Friel, E. Flaccomio, E. Franciosini, E. Pancino, F. Damiani, F.M. Jimenez-Esteban, G. Gilmore, G. Sacco, J.E. Drew, L. Balaguer-Nunez, L. Casamiquela, L. Magrini, L. Prisinzano, M. Bergemann, M. Caramazza, M. Costado, N. Wright, P. Donati, P. Re Fiorentin, R. Blomme, R. Bonito, R.D. Jeffries, R.J. Jackson, R. Smiljanic, S. Randich, S. Zaggia, T. Bensby, T. Cantat-Gaudin, U. Abbas, U. Heiter","submitted_at":"2021-12-22T15:44:45Z","abstract_excerpt":"The Gaia-ESO Survey (GES) is a public, high-resolution spectroscopic survey with FLAMES@VLT. GES targeted in particular a large sample of open clusters (OCs) of all ages. The different kinds of OCs are useful to reach the main science goals, which are the study of the OC structure and dynamics, the use of OCs to constrain and improve stellar evolution models, and the definition of Galactic disc properties (e.g. metallicity distribution). GES is organised in 19 working groups (WGs). We describe here the work of three of them, WG4 in charge of the selection of the targets within each cluster), W"},"claims":{"count":0,"items":[],"snapshot_sha256":"258153158e38e3291e3d48162225fcdb2d5a3ed65a07baac614ab91432fd4f57"},"source":{"id":"2112.11974","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":""},"integrity":{"clean":true,"summary":{"advisory":0,"critical":0,"by_detector":{},"informational":0},"endpoint":"/pith/2112.11974/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":"2026-07-05T04:09:43Z","supersedes":[],"prev_event":null,"signature":{"signature_status":"signed_v1","algorithm":"ed25519","key_id":"pith-v1-2026-05","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54","signature_b64":"5kYaKl9VgIHHFcyLzTuzVUsDeUjvOP36K5j6TbMWSpBoXu0G3Mi/fwzcrtTvKZffL/07JdI6Kb5ok77jSA7nCQ==","signed_message":"open_graph_event_sha256_bytes","signed_at":"2026-07-05T12:54:57.793950Z"},"content_sha256":"e4b3a4db2323cd4e3146906b757c387aaa375f2e8d60c8fbbdc103489903b88f","schema_version":"1.0","event_id":"sha256:e4b3a4db2323cd4e3146906b757c387aaa375f2e8d60c8fbbdc103489903b88f"}],"timestamp_proofs":[],"mirror_hints":[{"mirror_type":"https","name":"Pith Resolver","base_url":"https://pith.science","bundle_url":"https://pith.science/pith/Q36UFAWNQGAVECLDTEHZFCQHEC/bundle.json","state_url":"https://pith.science/pith/Q36UFAWNQGAVECLDTEHZFCQHEC/state.json","well_known_bundle_url":"https://pith.science/.well-known/pith/Q36UFAWNQGAVECLDTEHZFCQHEC/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":"2026-07-05T12:54:57Z","links":{"resolver":"https://pith.science/pith/Q36UFAWNQGAVECLDTEHZFCQHEC","bundle":"https://pith.science/pith/Q36UFAWNQGAVECLDTEHZFCQHEC/bundle.json","state":"https://pith.science/pith/Q36UFAWNQGAVECLDTEHZFCQHEC/state.json","well_known_bundle":"https://pith.science/.well-known/pith/Q36UFAWNQGAVECLDTEHZFCQHEC/bundle.json"},"state":{"state_type":"pith_open_graph_state","state_version":"1.0","pith_number":"pith:2021:Q36UFAWNQGAVECLDTEHZFCQHEC","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":"2bf4fa96686dda95d94743513f5ef8e8ef9113c322a74434140ab4e6ef56de0f","cross_cats_sorted":["astro-ph.GA"],"license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"astro-ph.SR","submitted_at":"2021-12-22T15:44:45Z","title_canon_sha256":"7ebc8a1dccae61da51e7ff55375a01deb4aa321531e568977433c19910c03edc"},"schema_version":"1.0","source":{"id":"2112.11974","kind":"arxiv","version":1}},"source_aliases":[{"alias_kind":"arxiv","alias_value":"2112.11974","created_at":"2026-07-05T04:09:43Z"},{"alias_kind":"arxiv_version","alias_value":"2112.11974v1","created_at":"2026-07-05T04:09:43Z"},{"alias_kind":"doi","alias_value":"10.48550/arxiv.2112.11974","created_at":"2026-07-05T04:09:43Z"},{"alias_kind":"pith_short_12","alias_value":"Q36UFAWNQGAV","created_at":"2026-07-05T04:09:43Z"},{"alias_kind":"pith_short_16","alias_value":"Q36UFAWNQGAVECLD","created_at":"2026-07-05T04:09:43Z"},{"alias_kind":"pith_short_8","alias_value":"Q36UFAWN","created_at":"2026-07-05T04:09:43Z"}],"graph_snapshots":[{"event_id":"sha256:e4b3a4db2323cd4e3146906b757c387aaa375f2e8d60c8fbbdc103489903b88f","target":"graph","created_at":"2026-07-05T04:09:43Z","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/2112.11974/integrity.json","findings":[],"snapshot_sha256":"c28c3603d3b5d939e8dc4c7e95fa8dfce3d595e45f758748cecf8e644a296938","summary":{"advisory":0,"by_detector":{},"critical":0,"informational":0}},"paper":{"abstract_excerpt":"The Gaia-ESO Survey (GES) is a public, high-resolution spectroscopic survey with FLAMES@VLT. GES targeted in particular a large sample of open clusters (OCs) of all ages. The different kinds of OCs are useful to reach the main science goals, which are the study of the OC structure and dynamics, the use of OCs to constrain and improve stellar evolution models, and the definition of Galactic disc properties (e.g. metallicity distribution). GES is organised in 19 working groups (WGs). We describe here the work of three of them, WG4 in charge of the selection of the targets within each cluster), W","authors_text":"A. Bragaglia, A. Gonneau, A. Hourihane, A. Spagna, A. Vallenari, C. Hayes, C. Jordi, D. Hatztidimitriou, E. Alfaro, E.D. Friel, E. Flaccomio, E. Franciosini, E. Pancino, F. Damiani, F.M. Jimenez-Esteban, G. Gilmore, G. Sacco, J.E. Drew, L. Balaguer-Nunez, L. Casamiquela, L. Magrini, L. Prisinzano, M. Bergemann, M. Caramazza, M. Costado, N. Wright, P. Donati, P. Re Fiorentin, R. Blomme, R. Bonito, R.D. Jeffries, R.J. Jackson, R. Smiljanic, S. Randich, S. Zaggia, T. Bensby, T. Cantat-Gaudin, U. Abbas, U. Heiter","cross_cats":["astro-ph.GA"],"headline":"","license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"astro-ph.SR","submitted_at":"2021-12-22T15:44:45Z","title":"The Gaia-ESO Survey: Target selection of open cluster stars"},"references":{"count":0,"internal_anchors":0,"resolved_work":0,"sample":[],"snapshot_sha256":"258153158e38e3291e3d48162225fcdb2d5a3ed65a07baac614ab91432fd4f57"},"source":{"id":"2112.11974","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":"sha256:2a8cc9a574d55ebf49a8021e563d0e143240343fd85b2cbf0f3a63d7bbccf2a0","target":"record","created_at":"2026-07-05T04:09:43Z","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":"2bf4fa96686dda95d94743513f5ef8e8ef9113c322a74434140ab4e6ef56de0f","cross_cats_sorted":["astro-ph.GA"],"license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"astro-ph.SR","submitted_at":"2021-12-22T15:44:45Z","title_canon_sha256":"7ebc8a1dccae61da51e7ff55375a01deb4aa321531e568977433c19910c03edc"},"schema_version":"1.0","source":{"id":"2112.11974","kind":"arxiv","version":1}},"canonical_sha256":"86fd4282cd8181520963990f928a07208cdac9d26d4b5f216824a425be42d15f","receipt":{"algorithm":"ed25519","builder_version":"pith-number-builder-2026-05-17-v1","canonical_sha256":"86fd4282cd8181520963990f928a07208cdac9d26d4b5f216824a425be42d15f","first_computed_at":"2026-07-05T04:09:43.425784Z","key_id":"pith-v1-2026-05","kind":"pith_receipt","last_reissued_at":"2026-07-05T04:09:43.425784Z","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54","receipt_version":"0.3","signature_b64":"uz7PZ/uu4E40jElwPWauOeyQxzxo2/y4u908t3XwulMVbVG82S5dJLCle26vqILGjqejY1Gtto2JkQZfKyshBw==","signature_status":"signed_v1","signed_at":"2026-07-05T04:09:43.426208Z","signed_message":"canonical_sha256_bytes"},"source_id":"2112.11974","source_kind":"arxiv","source_version":1}}},"equivocations":[],"invalid_events":[],"applied_event_ids":["sha256:2a8cc9a574d55ebf49a8021e563d0e143240343fd85b2cbf0f3a63d7bbccf2a0","sha256:e4b3a4db2323cd4e3146906b757c387aaa375f2e8d60c8fbbdc103489903b88f"],"state_sha256":"8c84473e4b4cf1bf6dc6183a04e43183b3929c6aef48bb77536a5c94c52650ba"},"bundle_signature":{"signature_status":"signed_v1","algorithm":"ed25519","key_id":"pith-v1-2026-05","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54","signature_b64":"6y2r02RfagMwni9q76XIEhCHSjT2m4A7K0BaQtr6lfzusdTpgbPTdyb/YXeqKAN0XbUlNg8LHEvaiFgn9dWBDQ==","signed_message":"bundle_sha256_bytes","signed_at":"2026-07-05T12:54:57.798960Z","bundle_sha256":"7179cc3b0ea594797f6802231909bee6fc0f7c5bbc85e2bc5004900496797a7c"}}