{"bundle_type":"pith_open_graph_bundle","bundle_version":"1.0","pith_number":"pith:2020:HBDQU5FRLNGM6KGGDSRLKAKVMQ","short_pith_number":"pith:HBDQU5FR","canonical_record":{"source":{"id":"2011.03283","kind":"arxiv","version":1},"metadata":{"license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"astro-ph.GA","submitted_at":"2020-11-06T11:12:12Z","cross_cats_sorted":["astro-ph.SR"],"title_canon_sha256":"795339804fb8b63e323700c66eb4141fe160977cb9e00e9732ea0391e3e85551","abstract_canon_sha256":"de61bc7ab3bb816561d05d2a82348e1fcb112647d2a9e964314aca01561d7f6d"},"schema_version":"1.0"},"canonical_sha256":"38470a74b15b4ccf28c61ca2b5015564295d687a0b51ea82a33f1d42b8f5f513","source":{"kind":"arxiv","id":"2011.03283","version":1},"source_aliases":[{"alias_kind":"arxiv","alias_value":"2011.03283","created_at":"2026-07-05T02:07:50Z"},{"alias_kind":"arxiv_version","alias_value":"2011.03283v1","created_at":"2026-07-05T02:07:50Z"},{"alias_kind":"doi","alias_value":"10.48550/arxiv.2011.03283","created_at":"2026-07-05T02:07:50Z"},{"alias_kind":"pith_short_12","alias_value":"HBDQU5FRLNGM","created_at":"2026-07-05T02:07:50Z"},{"alias_kind":"pith_short_16","alias_value":"HBDQU5FRLNGM6KGG","created_at":"2026-07-05T02:07:50Z"},{"alias_kind":"pith_short_8","alias_value":"HBDQU5FR","created_at":"2026-07-05T02:07:50Z"}],"events":[{"event_type":"record_created","subject_pith_number":"pith:2020:HBDQU5FRLNGM6KGGDSRLKAKVMQ","target":"record","payload":{"canonical_record":{"source":{"id":"2011.03283","kind":"arxiv","version":1},"metadata":{"license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"astro-ph.GA","submitted_at":"2020-11-06T11:12:12Z","cross_cats_sorted":["astro-ph.SR"],"title_canon_sha256":"795339804fb8b63e323700c66eb4141fe160977cb9e00e9732ea0391e3e85551","abstract_canon_sha256":"de61bc7ab3bb816561d05d2a82348e1fcb112647d2a9e964314aca01561d7f6d"},"schema_version":"1.0"},"canonical_sha256":"38470a74b15b4ccf28c61ca2b5015564295d687a0b51ea82a33f1d42b8f5f513","receipt":{"kind":"pith_receipt","key_id":"pith-v1-2026-05","algorithm":"ed25519","signed_at":"2026-07-05T02:07:50.982513Z","signature_b64":"T6QMqbSLH4g2zDvvmyRCGTBygwPbdrPfhTrJBZZoqzEkULvyJTysX75lmSqNfTQCpY0Z8g4YeiMtcXDW6KdtDA==","signed_message":"canonical_sha256_bytes","builder_version":"pith-number-builder-2026-05-17-v1","receipt_version":"0.3","canonical_sha256":"38470a74b15b4ccf28c61ca2b5015564295d687a0b51ea82a33f1d42b8f5f513","last_reissued_at":"2026-07-05T02:07:50.982078Z","signature_status":"signed_v1","first_computed_at":"2026-07-05T02:07:50.982078Z","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54"},"source_kind":"arxiv","source_id":"2011.03283","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":"2026-07-05T02:07:50Z","supersedes":[],"prev_event":null,"signature":{"signature_status":"signed_v1","algorithm":"ed25519","key_id":"pith-v1-2026-05","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54","signature_b64":"Xc6PBnJl2oSSLQASeHtQROtYJz7OAZV4nnGEVOMdPxRfLFXSR/csXun0lvZRWmuEjAORxzuuVdWQ46snOhIbDA==","signed_message":"open_graph_event_sha256_bytes","signed_at":"2026-08-01T05:50:57.200522Z"},"content_sha256":"e471cf51c029075347f449f89b164583d1226aa2bcbdbc18184a8b9698076460","schema_version":"1.0","event_id":"sha256:e471cf51c029075347f449f89b164583d1226aa2bcbdbc18184a8b9698076460"},{"event_type":"graph_snapshot","subject_pith_number":"pith:2020:HBDQU5FRLNGM6KGGDSRLKAKVMQ","target":"graph","payload":{"graph_snapshot":{"paper":{"title":"Multiple stellar populations along the red Horizontal Branch and Red Clump of Globular Clusters","license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","headline":"","cross_cats":["astro-ph.SR"],"primary_cat":"astro-ph.GA","authors_text":"Anna F. Marino, Antonino P. Milone, Edoardo P. Lagioia, Emanuele Dondoglio, Giacomo Cordoni, Marco Tailo, Marilia G. Carlos, Sohee Jang","submitted_at":"2020-11-06T11:12:12Z","abstract_excerpt":"We exploit multi-band Hubble Space Telescope photometry to investigate multiple populations (MPs) along the red horizontal branches (HBs) and red clumps of fourteen metal-rich Globular Clusters (GCs), including twelve Milky Way GCs and the Magellanic Cloud GCs NGC 1978 and NGC 416. Based on appropriate two-color diagrams we find that the fraction of 1G stars in Galactic GCs correlates with cluster mass, confirming previous results based on red-giant branch (RGB) stars. Magellanic-Cloud GCs show higher fractions of 1G stars than Galactic GCs with similar masses, thus suggesting that the environ"},"claims":{"count":0,"items":[],"snapshot_sha256":"258153158e38e3291e3d48162225fcdb2d5a3ed65a07baac614ab91432fd4f57"},"source":{"id":"2011.03283","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/2011.03283/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":"2026-07-05T02:07:50Z","supersedes":[],"prev_event":null,"signature":{"signature_status":"signed_v1","algorithm":"ed25519","key_id":"pith-v1-2026-05","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54","signature_b64":"gr+Yzq2Gb/jwbbWF2rjsF5CMXDidsWR/WO1vA9S4BbnnvnE1gJ3AoHhWP05d49oVEJLsjJpqoSlbTMGIWTwUBQ==","signed_message":"open_graph_event_sha256_bytes","signed_at":"2026-08-01T05:50:57.201065Z"},"content_sha256":"666b6e7c4bfa2967a458bf0472b119fdb3fb44141de48e15b27b94f467b8a610","schema_version":"1.0","event_id":"sha256:666b6e7c4bfa2967a458bf0472b119fdb3fb44141de48e15b27b94f467b8a610"}],"timestamp_proofs":[],"mirror_hints":[{"mirror_type":"https","name":"Pith Resolver","base_url":"https://pith.science","bundle_url":"https://pith.science/pith/HBDQU5FRLNGM6KGGDSRLKAKVMQ/bundle.json","state_url":"https://pith.science/pith/HBDQU5FRLNGM6KGGDSRLKAKVMQ/state.json","well_known_bundle_url":"https://pith.science/.well-known/pith/HBDQU5FRLNGM6KGGDSRLKAKVMQ/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":"2026-08-01T05:50:57Z","links":{"resolver":"https://pith.science/pith/HBDQU5FRLNGM6KGGDSRLKAKVMQ","bundle":"https://pith.science/pith/HBDQU5FRLNGM6KGGDSRLKAKVMQ/bundle.json","state":"https://pith.science/pith/HBDQU5FRLNGM6KGGDSRLKAKVMQ/state.json","well_known_bundle":"https://pith.science/.well-known/pith/HBDQU5FRLNGM6KGGDSRLKAKVMQ/bundle.json"},"state":{"state_type":"pith_open_graph_state","state_version":"1.0","pith_number":"pith:2020:HBDQU5FRLNGM6KGGDSRLKAKVMQ","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":"de61bc7ab3bb816561d05d2a82348e1fcb112647d2a9e964314aca01561d7f6d","cross_cats_sorted":["astro-ph.SR"],"license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"astro-ph.GA","submitted_at":"2020-11-06T11:12:12Z","title_canon_sha256":"795339804fb8b63e323700c66eb4141fe160977cb9e00e9732ea0391e3e85551"},"schema_version":"1.0","source":{"id":"2011.03283","kind":"arxiv","version":1}},"source_aliases":[{"alias_kind":"arxiv","alias_value":"2011.03283","created_at":"2026-07-05T02:07:50Z"},{"alias_kind":"arxiv_version","alias_value":"2011.03283v1","created_at":"2026-07-05T02:07:50Z"},{"alias_kind":"doi","alias_value":"10.48550/arxiv.2011.03283","created_at":"2026-07-05T02:07:50Z"},{"alias_kind":"pith_short_12","alias_value":"HBDQU5FRLNGM","created_at":"2026-07-05T02:07:50Z"},{"alias_kind":"pith_short_16","alias_value":"HBDQU5FRLNGM6KGG","created_at":"2026-07-05T02:07:50Z"},{"alias_kind":"pith_short_8","alias_value":"HBDQU5FR","created_at":"2026-07-05T02:07:50Z"}],"graph_snapshots":[{"event_id":"sha256:666b6e7c4bfa2967a458bf0472b119fdb3fb44141de48e15b27b94f467b8a610","target":"graph","created_at":"2026-07-05T02:07:50Z","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/2011.03283/integrity.json","findings":[],"snapshot_sha256":"c28c3603d3b5d939e8dc4c7e95fa8dfce3d595e45f758748cecf8e644a296938","summary":{"advisory":0,"by_detector":{},"critical":0,"informational":0}},"paper":{"abstract_excerpt":"We exploit multi-band Hubble Space Telescope photometry to investigate multiple populations (MPs) along the red horizontal branches (HBs) and red clumps of fourteen metal-rich Globular Clusters (GCs), including twelve Milky Way GCs and the Magellanic Cloud GCs NGC 1978 and NGC 416. Based on appropriate two-color diagrams we find that the fraction of 1G stars in Galactic GCs correlates with cluster mass, confirming previous results based on red-giant branch (RGB) stars. Magellanic-Cloud GCs show higher fractions of 1G stars than Galactic GCs with similar masses, thus suggesting that the environ","authors_text":"Anna F. Marino, Antonino P. Milone, Edoardo P. Lagioia, Emanuele Dondoglio, Giacomo Cordoni, Marco Tailo, Marilia G. Carlos, Sohee Jang","cross_cats":["astro-ph.SR"],"headline":"","license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"astro-ph.GA","submitted_at":"2020-11-06T11:12:12Z","title":"Multiple stellar populations along the red Horizontal Branch and Red Clump of Globular Clusters"},"references":{"count":0,"internal_anchors":0,"resolved_work":0,"sample":[],"snapshot_sha256":"258153158e38e3291e3d48162225fcdb2d5a3ed65a07baac614ab91432fd4f57"},"source":{"id":"2011.03283","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:e471cf51c029075347f449f89b164583d1226aa2bcbdbc18184a8b9698076460","target":"record","created_at":"2026-07-05T02:07:50Z","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":"de61bc7ab3bb816561d05d2a82348e1fcb112647d2a9e964314aca01561d7f6d","cross_cats_sorted":["astro-ph.SR"],"license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"astro-ph.GA","submitted_at":"2020-11-06T11:12:12Z","title_canon_sha256":"795339804fb8b63e323700c66eb4141fe160977cb9e00e9732ea0391e3e85551"},"schema_version":"1.0","source":{"id":"2011.03283","kind":"arxiv","version":1}},"canonical_sha256":"38470a74b15b4ccf28c61ca2b5015564295d687a0b51ea82a33f1d42b8f5f513","receipt":{"algorithm":"ed25519","builder_version":"pith-number-builder-2026-05-17-v1","canonical_sha256":"38470a74b15b4ccf28c61ca2b5015564295d687a0b51ea82a33f1d42b8f5f513","first_computed_at":"2026-07-05T02:07:50.982078Z","key_id":"pith-v1-2026-05","kind":"pith_receipt","last_reissued_at":"2026-07-05T02:07:50.982078Z","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54","receipt_version":"0.3","signature_b64":"T6QMqbSLH4g2zDvvmyRCGTBygwPbdrPfhTrJBZZoqzEkULvyJTysX75lmSqNfTQCpY0Z8g4YeiMtcXDW6KdtDA==","signature_status":"signed_v1","signed_at":"2026-07-05T02:07:50.982513Z","signed_message":"canonical_sha256_bytes"},"source_id":"2011.03283","source_kind":"arxiv","source_version":1}}},"equivocations":[],"invalid_events":[],"applied_event_ids":["sha256:e471cf51c029075347f449f89b164583d1226aa2bcbdbc18184a8b9698076460","sha256:666b6e7c4bfa2967a458bf0472b119fdb3fb44141de48e15b27b94f467b8a610"],"state_sha256":"7784be263b288984929bd47849d56974b4ddd20333ab80ff484b2916dc64bcb4"},"bundle_signature":{"signature_status":"signed_v1","algorithm":"ed25519","key_id":"pith-v1-2026-05","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54","signature_b64":"K+5P/HSOiT3LaF9ZzhSBvtG8YzF+Y6BSN0khmPLuIdOFQBXowRufCe51adFqoIpGGp5OUY5PCxkZnBLEVs9mAA==","signed_message":"bundle_sha256_bytes","signed_at":"2026-08-01T05:50:57.207068Z","bundle_sha256":"08bf5c0ae82fc8e055676f57c538b3d60e7677ba685e6c337c3028fc8ed8cb4f"}}