{"bundle_type":"pith_open_graph_bundle","bundle_version":"1.0","pith_number":"pith:2020:DSEYABP5IQAZ22KKFMMA3HJWXO","short_pith_number":"pith:DSEYABP5","canonical_record":{"source":{"id":"2001.00679","kind":"arxiv","version":1},"metadata":{"license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"astro-ph.GA","submitted_at":"2020-01-03T01:34:10Z","cross_cats_sorted":["astro-ph.SR"],"title_canon_sha256":"e9e6cca0f0b81f1e8f5248414e5d8d83f7422ca9596d31a35990366e48efd68f","abstract_canon_sha256":"fb2573b84487763709a445d8fabaa24b21a761c674e05bc74418f6f63c036257"},"schema_version":"1.0"},"canonical_sha256":"1c898005fd44019d694a2b180d9d36bba66cb1b1879bb95ea020d75dee24b1c8","source":{"kind":"arxiv","id":"2001.00679","version":1},"source_aliases":[{"alias_kind":"arxiv","alias_value":"2001.00679","created_at":"2026-07-05T00:33:25Z"},{"alias_kind":"arxiv_version","alias_value":"2001.00679v1","created_at":"2026-07-05T00:33:25Z"},{"alias_kind":"doi","alias_value":"10.48550/arxiv.2001.00679","created_at":"2026-07-05T00:33:25Z"},{"alias_kind":"pith_short_12","alias_value":"DSEYABP5IQAZ","created_at":"2026-07-05T00:33:25Z"},{"alias_kind":"pith_short_16","alias_value":"DSEYABP5IQAZ22KK","created_at":"2026-07-05T00:33:25Z"},{"alias_kind":"pith_short_8","alias_value":"DSEYABP5","created_at":"2026-07-05T00:33:25Z"}],"events":[{"event_type":"record_created","subject_pith_number":"pith:2020:DSEYABP5IQAZ22KKFMMA3HJWXO","target":"record","payload":{"canonical_record":{"source":{"id":"2001.00679","kind":"arxiv","version":1},"metadata":{"license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"astro-ph.GA","submitted_at":"2020-01-03T01:34:10Z","cross_cats_sorted":["astro-ph.SR"],"title_canon_sha256":"e9e6cca0f0b81f1e8f5248414e5d8d83f7422ca9596d31a35990366e48efd68f","abstract_canon_sha256":"fb2573b84487763709a445d8fabaa24b21a761c674e05bc74418f6f63c036257"},"schema_version":"1.0"},"canonical_sha256":"1c898005fd44019d694a2b180d9d36bba66cb1b1879bb95ea020d75dee24b1c8","receipt":{"kind":"pith_receipt","key_id":"pith-v1-2026-05","algorithm":"ed25519","signed_at":"2026-07-05T00:33:25.678260Z","signature_b64":"lgAiGn4sYT4FnGI7fJIZP65Lg88SDO94vgxtYx0E+17RpKd+/ND3pEUHWAXjoSNq10GcOsuHqXc6+fJ+M53SCA==","signed_message":"canonical_sha256_bytes","builder_version":"pith-number-builder-2026-05-17-v1","receipt_version":"0.3","canonical_sha256":"1c898005fd44019d694a2b180d9d36bba66cb1b1879bb95ea020d75dee24b1c8","last_reissued_at":"2026-07-05T00:33:25.677788Z","signature_status":"signed_v1","first_computed_at":"2026-07-05T00:33:25.677788Z","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54"},"source_kind":"arxiv","source_id":"2001.00679","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":"2026-07-05T00:33:25Z","supersedes":[],"prev_event":null,"signature":{"signature_status":"signed_v1","algorithm":"ed25519","key_id":"pith-v1-2026-05","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54","signature_b64":"S3QFN1ruwbxhnMUa4khVCXGST4t710kwOl/1ZOA7ZUtNRNxBrBU+bYgSbx1dInIKWBljfJmi/SjhiJBUMZ2SAQ==","signed_message":"open_graph_event_sha256_bytes","signed_at":"2026-08-04T17:34:01.060905Z"},"content_sha256":"597220359c7d360059d562cb0e23ca18aab273eba3cc6777438e2eb870d1310e","schema_version":"1.0","event_id":"sha256:597220359c7d360059d562cb0e23ca18aab273eba3cc6777438e2eb870d1310e"},{"event_type":"graph_snapshot","subject_pith_number":"pith:2020:DSEYABP5IQAZ22KKFMMA3HJWXO","target":"graph","payload":{"graph_snapshot":{"paper":{"title":"Five Stellar Populations in M22 (NGC 6656)","license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","headline":"","cross_cats":["astro-ph.SR"],"primary_cat":"astro-ph.GA","authors_text":"Jae-Woo Lee","submitted_at":"2020-01-03T01:34:10Z","abstract_excerpt":"We present the Ca-CN-CH photometry of the metal-complex globular cluster (GC) M22 (NGC 6656). Our photometry clearly shows the discrete double CN-CH anticorrelations in M22 red giant branch (RGB) stars, due to the difference in the mean metallicity. The populational number ratio between the two main groups is n(G1):n(G2) = 63:37(+/-3), with the G1 being more metal-poor. Furthermore, the G1 can be divided into two subpopulations with the number ratio of n(CN-w):n(CN-s) = 51:49 (+/-4), while the G2 can be divided into three subpopulations with n(CN-w):n(CN-i):n(CN-s) = 24:32:44 (+/-5). The prope"},"claims":{"count":0,"items":[],"snapshot_sha256":"258153158e38e3291e3d48162225fcdb2d5a3ed65a07baac614ab91432fd4f57"},"source":{"id":"2001.00679","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/2001.00679/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":"2026-07-05T00:33:25Z","supersedes":[],"prev_event":null,"signature":{"signature_status":"signed_v1","algorithm":"ed25519","key_id":"pith-v1-2026-05","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54","signature_b64":"LP5gWcnE8hiAMFL5ovhov+it9KrTEyFhAyFLgWZOXh9Kb/ZsnCUhtirx/PMRFnEIEFbo7rCLnYw3ZoLSGnC1Cw==","signed_message":"open_graph_event_sha256_bytes","signed_at":"2026-08-04T17:34:01.061490Z"},"content_sha256":"72cb1f33a83c459b5de04719612ea93af3bb9e9137fef760eef5d3718ae162a9","schema_version":"1.0","event_id":"sha256:72cb1f33a83c459b5de04719612ea93af3bb9e9137fef760eef5d3718ae162a9"}],"timestamp_proofs":[],"mirror_hints":[{"mirror_type":"https","name":"Pith Resolver","base_url":"https://pith.science","bundle_url":"https://pith.science/pith/DSEYABP5IQAZ22KKFMMA3HJWXO/bundle.json","state_url":"https://pith.science/pith/DSEYABP5IQAZ22KKFMMA3HJWXO/state.json","well_known_bundle_url":"https://pith.science/.well-known/pith/DSEYABP5IQAZ22KKFMMA3HJWXO/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":"2026-08-04T17:34:01Z","links":{"resolver":"https://pith.science/pith/DSEYABP5IQAZ22KKFMMA3HJWXO","bundle":"https://pith.science/pith/DSEYABP5IQAZ22KKFMMA3HJWXO/bundle.json","state":"https://pith.science/pith/DSEYABP5IQAZ22KKFMMA3HJWXO/state.json","well_known_bundle":"https://pith.science/.well-known/pith/DSEYABP5IQAZ22KKFMMA3HJWXO/bundle.json"},"state":{"state_type":"pith_open_graph_state","state_version":"1.0","pith_number":"pith:2020:DSEYABP5IQAZ22KKFMMA3HJWXO","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":"fb2573b84487763709a445d8fabaa24b21a761c674e05bc74418f6f63c036257","cross_cats_sorted":["astro-ph.SR"],"license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"astro-ph.GA","submitted_at":"2020-01-03T01:34:10Z","title_canon_sha256":"e9e6cca0f0b81f1e8f5248414e5d8d83f7422ca9596d31a35990366e48efd68f"},"schema_version":"1.0","source":{"id":"2001.00679","kind":"arxiv","version":1}},"source_aliases":[{"alias_kind":"arxiv","alias_value":"2001.00679","created_at":"2026-07-05T00:33:25Z"},{"alias_kind":"arxiv_version","alias_value":"2001.00679v1","created_at":"2026-07-05T00:33:25Z"},{"alias_kind":"doi","alias_value":"10.48550/arxiv.2001.00679","created_at":"2026-07-05T00:33:25Z"},{"alias_kind":"pith_short_12","alias_value":"DSEYABP5IQAZ","created_at":"2026-07-05T00:33:25Z"},{"alias_kind":"pith_short_16","alias_value":"DSEYABP5IQAZ22KK","created_at":"2026-07-05T00:33:25Z"},{"alias_kind":"pith_short_8","alias_value":"DSEYABP5","created_at":"2026-07-05T00:33:25Z"}],"graph_snapshots":[{"event_id":"sha256:72cb1f33a83c459b5de04719612ea93af3bb9e9137fef760eef5d3718ae162a9","target":"graph","created_at":"2026-07-05T00:33:25Z","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/2001.00679/integrity.json","findings":[],"snapshot_sha256":"c28c3603d3b5d939e8dc4c7e95fa8dfce3d595e45f758748cecf8e644a296938","summary":{"advisory":0,"by_detector":{},"critical":0,"informational":0}},"paper":{"abstract_excerpt":"We present the Ca-CN-CH photometry of the metal-complex globular cluster (GC) M22 (NGC 6656). Our photometry clearly shows the discrete double CN-CH anticorrelations in M22 red giant branch (RGB) stars, due to the difference in the mean metallicity. The populational number ratio between the two main groups is n(G1):n(G2) = 63:37(+/-3), with the G1 being more metal-poor. Furthermore, the G1 can be divided into two subpopulations with the number ratio of n(CN-w):n(CN-s) = 51:49 (+/-4), while the G2 can be divided into three subpopulations with n(CN-w):n(CN-i):n(CN-s) = 24:32:44 (+/-5). The prope","authors_text":"Jae-Woo Lee","cross_cats":["astro-ph.SR"],"headline":"","license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"astro-ph.GA","submitted_at":"2020-01-03T01:34:10Z","title":"Five Stellar Populations in M22 (NGC 6656)"},"references":{"count":0,"internal_anchors":0,"resolved_work":0,"sample":[],"snapshot_sha256":"258153158e38e3291e3d48162225fcdb2d5a3ed65a07baac614ab91432fd4f57"},"source":{"id":"2001.00679","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":"sha256:597220359c7d360059d562cb0e23ca18aab273eba3cc6777438e2eb870d1310e","target":"record","created_at":"2026-07-05T00:33:25Z","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":"fb2573b84487763709a445d8fabaa24b21a761c674e05bc74418f6f63c036257","cross_cats_sorted":["astro-ph.SR"],"license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"astro-ph.GA","submitted_at":"2020-01-03T01:34:10Z","title_canon_sha256":"e9e6cca0f0b81f1e8f5248414e5d8d83f7422ca9596d31a35990366e48efd68f"},"schema_version":"1.0","source":{"id":"2001.00679","kind":"arxiv","version":1}},"canonical_sha256":"1c898005fd44019d694a2b180d9d36bba66cb1b1879bb95ea020d75dee24b1c8","receipt":{"algorithm":"ed25519","builder_version":"pith-number-builder-2026-05-17-v1","canonical_sha256":"1c898005fd44019d694a2b180d9d36bba66cb1b1879bb95ea020d75dee24b1c8","first_computed_at":"2026-07-05T00:33:25.677788Z","key_id":"pith-v1-2026-05","kind":"pith_receipt","last_reissued_at":"2026-07-05T00:33:25.677788Z","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54","receipt_version":"0.3","signature_b64":"lgAiGn4sYT4FnGI7fJIZP65Lg88SDO94vgxtYx0E+17RpKd+/ND3pEUHWAXjoSNq10GcOsuHqXc6+fJ+M53SCA==","signature_status":"signed_v1","signed_at":"2026-07-05T00:33:25.678260Z","signed_message":"canonical_sha256_bytes"},"source_id":"2001.00679","source_kind":"arxiv","source_version":1}}},"equivocations":[],"invalid_events":[],"applied_event_ids":["sha256:597220359c7d360059d562cb0e23ca18aab273eba3cc6777438e2eb870d1310e","sha256:72cb1f33a83c459b5de04719612ea93af3bb9e9137fef760eef5d3718ae162a9"],"state_sha256":"52de2d0a90e83d2b6610bbe1c9b8763b65c1e250e919ca4b7d7e13a39315f96a"},"bundle_signature":{"signature_status":"signed_v1","algorithm":"ed25519","key_id":"pith-v1-2026-05","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54","signature_b64":"AYtJGkyGd3fUZ70kbmFxJSfOkWfByYitk53sLNHGGQsBVR/AEN6V9zQZZdq4fKFOxzqYMAmBlfkQxdlW8tC2BQ==","signed_message":"bundle_sha256_bytes","signed_at":"2026-08-04T17:34:01.065821Z","bundle_sha256":"66296da13b466d1c455ed96244a658282977edd8e882f95e295da5d6cd42e51a"}}