{"bundle_type":"pith_open_graph_bundle","bundle_version":"1.0","pith_number":"pith:2017:IYBZNLDMIFP2QJOPKQTFX2XGVE","short_pith_number":"pith:IYBZNLDM","canonical_record":{"source":{"id":"1711.01121","kind":"arxiv","version":1},"metadata":{"license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"astro-ph.GA","submitted_at":"2017-11-03T12:10:57Z","cross_cats_sorted":[],"title_canon_sha256":"ca52df0df1cfe4447106135be56a886e72eb60e6062692bc84f121d65684d1b0","abstract_canon_sha256":"c6d4b7f79358b1f70b7b5afef04bf8f2b71791c29d5a0899eded4603b0159597"},"schema_version":"1.0"},"canonical_sha256":"460396ac6c415fa825cf54265beae6a92a2e316d17e9e70ddeb1711b6c970113","source":{"kind":"arxiv","id":"1711.01121","version":1},"source_aliases":[{"alias_kind":"arxiv","alias_value":"1711.01121","created_at":"2026-05-18T00:31:23Z"},{"alias_kind":"arxiv_version","alias_value":"1711.01121v1","created_at":"2026-05-18T00:31:23Z"},{"alias_kind":"doi","alias_value":"10.48550/arxiv.1711.01121","created_at":"2026-05-18T00:31:23Z"},{"alias_kind":"pith_short_12","alias_value":"IYBZNLDMIFP2","created_at":"2026-05-18T12:31:21Z"},{"alias_kind":"pith_short_16","alias_value":"IYBZNLDMIFP2QJOP","created_at":"2026-05-18T12:31:21Z"},{"alias_kind":"pith_short_8","alias_value":"IYBZNLDM","created_at":"2026-05-18T12:31:21Z"}],"events":[{"event_type":"record_created","subject_pith_number":"pith:2017:IYBZNLDMIFP2QJOPKQTFX2XGVE","target":"record","payload":{"canonical_record":{"source":{"id":"1711.01121","kind":"arxiv","version":1},"metadata":{"license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"astro-ph.GA","submitted_at":"2017-11-03T12:10:57Z","cross_cats_sorted":[],"title_canon_sha256":"ca52df0df1cfe4447106135be56a886e72eb60e6062692bc84f121d65684d1b0","abstract_canon_sha256":"c6d4b7f79358b1f70b7b5afef04bf8f2b71791c29d5a0899eded4603b0159597"},"schema_version":"1.0"},"canonical_sha256":"460396ac6c415fa825cf54265beae6a92a2e316d17e9e70ddeb1711b6c970113","receipt":{"kind":"pith_receipt","key_id":"pith-v1-2026-05","algorithm":"ed25519","signed_at":"2026-05-18T00:31:23.351216Z","signature_b64":"hQ15KyJ5fNPDSXuyqdmRTPsTtW8FLgVHOhzUDeuOL0qqUDqfuFOyXHzICKYJHKPPe4bs+BgyOFUc8Ghf1nw6Cw==","signed_message":"canonical_sha256_bytes","builder_version":"pith-number-builder-2026-05-17-v1","receipt_version":"0.3","canonical_sha256":"460396ac6c415fa825cf54265beae6a92a2e316d17e9e70ddeb1711b6c970113","last_reissued_at":"2026-05-18T00:31:23.350745Z","signature_status":"signed_v1","first_computed_at":"2026-05-18T00:31:23.350745Z","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54"},"source_kind":"arxiv","source_id":"1711.01121","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":"2026-05-18T00:31:23Z","supersedes":[],"prev_event":null,"signature":{"signature_status":"signed_v1","algorithm":"ed25519","key_id":"pith-v1-2026-05","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54","signature_b64":"Zlb4fDnsVAX6jAHa6+Ipo7nFe4PKuOYD6h95Ig+mwyRbPQ7HEJm76Ydebpz7MB3jlzw6b4D9rmszyY9ZDuF5BA==","signed_message":"open_graph_event_sha256_bytes","signed_at":"2026-05-28T17:20:06.740959Z"},"content_sha256":"838e201c81a74017dcb39f8f38b08b561d861db2207fc68f18c3b80109783f15","schema_version":"1.0","event_id":"sha256:838e201c81a74017dcb39f8f38b08b561d861db2207fc68f18c3b80109783f15"},{"event_type":"graph_snapshot","subject_pith_number":"pith:2017:IYBZNLDMIFP2QJOPKQTFX2XGVE","target":"graph","payload":{"graph_snapshot":{"paper":{"title":"Interpreting the complex CMDs of the Magellanic Clouds clusters","license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","headline":"","cross_cats":[],"primary_cat":"astro-ph.GA","authors_text":"I. Cabrera-Ziri, K. Hollyhead, N. Bastian, S. Martocchia","submitted_at":"2017-11-03T12:10:57Z","abstract_excerpt":"The Magellanic Clouds host a large population of massive (> 10^4 Msun) star clusters with ages ranging from a few Myr to 12 Gyr. In nearly all cases, close inspection of their CMDs reveals features that deviate from expectations of a classic isochrone. Young (< 2 Gyr) clusters show extended main sequence turnoffs and in some cases split/dual main sequences. Clusters older than ~ 2 Gyr show splitting in the red giant branches when viewed in UV filters that are sensitive to abundance variations (in particular nitrogen). A distribution of stellar rotation rates appears to be the cause of the comp"},"claims":{"count":0,"items":[],"snapshot_sha256":"258153158e38e3291e3d48162225fcdb2d5a3ed65a07baac614ab91432fd4f57"},"source":{"id":"1711.01121","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":"2026-05-18T00:31:23Z","supersedes":[],"prev_event":null,"signature":{"signature_status":"signed_v1","algorithm":"ed25519","key_id":"pith-v1-2026-05","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54","signature_b64":"mpOxSrl5ir2wu16jvMk1XC9zEtYt0K2GYuOLcd/vUoYqTzToBMB7U6fXBykX7BejGd6DXJu4admcwj4lOrsaAw==","signed_message":"open_graph_event_sha256_bytes","signed_at":"2026-05-28T17:20:06.741623Z"},"content_sha256":"42268fa9a56769fb8546cd85dd6aed4e3765325a33d5337fb5be8aabfce49330","schema_version":"1.0","event_id":"sha256:42268fa9a56769fb8546cd85dd6aed4e3765325a33d5337fb5be8aabfce49330"}],"timestamp_proofs":[],"mirror_hints":[{"mirror_type":"https","name":"Pith Resolver","base_url":"https://pith.science","bundle_url":"https://pith.science/pith/IYBZNLDMIFP2QJOPKQTFX2XGVE/bundle.json","state_url":"https://pith.science/pith/IYBZNLDMIFP2QJOPKQTFX2XGVE/state.json","well_known_bundle_url":"https://pith.science/.well-known/pith/IYBZNLDMIFP2QJOPKQTFX2XGVE/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":"2026-05-28T17:20:06Z","links":{"resolver":"https://pith.science/pith/IYBZNLDMIFP2QJOPKQTFX2XGVE","bundle":"https://pith.science/pith/IYBZNLDMIFP2QJOPKQTFX2XGVE/bundle.json","state":"https://pith.science/pith/IYBZNLDMIFP2QJOPKQTFX2XGVE/state.json","well_known_bundle":"https://pith.science/.well-known/pith/IYBZNLDMIFP2QJOPKQTFX2XGVE/bundle.json"},"state":{"state_type":"pith_open_graph_state","state_version":"1.0","pith_number":"pith:2017:IYBZNLDMIFP2QJOPKQTFX2XGVE","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":"c6d4b7f79358b1f70b7b5afef04bf8f2b71791c29d5a0899eded4603b0159597","cross_cats_sorted":[],"license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"astro-ph.GA","submitted_at":"2017-11-03T12:10:57Z","title_canon_sha256":"ca52df0df1cfe4447106135be56a886e72eb60e6062692bc84f121d65684d1b0"},"schema_version":"1.0","source":{"id":"1711.01121","kind":"arxiv","version":1}},"source_aliases":[{"alias_kind":"arxiv","alias_value":"1711.01121","created_at":"2026-05-18T00:31:23Z"},{"alias_kind":"arxiv_version","alias_value":"1711.01121v1","created_at":"2026-05-18T00:31:23Z"},{"alias_kind":"doi","alias_value":"10.48550/arxiv.1711.01121","created_at":"2026-05-18T00:31:23Z"},{"alias_kind":"pith_short_12","alias_value":"IYBZNLDMIFP2","created_at":"2026-05-18T12:31:21Z"},{"alias_kind":"pith_short_16","alias_value":"IYBZNLDMIFP2QJOP","created_at":"2026-05-18T12:31:21Z"},{"alias_kind":"pith_short_8","alias_value":"IYBZNLDM","created_at":"2026-05-18T12:31:21Z"}],"graph_snapshots":[{"event_id":"sha256:42268fa9a56769fb8546cd85dd6aed4e3765325a33d5337fb5be8aabfce49330","target":"graph","created_at":"2026-05-18T00:31:23Z","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":"The Magellanic Clouds host a large population of massive (> 10^4 Msun) star clusters with ages ranging from a few Myr to 12 Gyr. In nearly all cases, close inspection of their CMDs reveals features that deviate from expectations of a classic isochrone. Young (< 2 Gyr) clusters show extended main sequence turnoffs and in some cases split/dual main sequences. Clusters older than ~ 2 Gyr show splitting in the red giant branches when viewed in UV filters that are sensitive to abundance variations (in particular nitrogen). A distribution of stellar rotation rates appears to be the cause of the comp","authors_text":"I. Cabrera-Ziri, K. Hollyhead, N. Bastian, S. Martocchia","cross_cats":[],"headline":"","license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"astro-ph.GA","submitted_at":"2017-11-03T12:10:57Z","title":"Interpreting the complex CMDs of the Magellanic Clouds clusters"},"references":{"count":0,"internal_anchors":0,"resolved_work":0,"sample":[],"snapshot_sha256":"258153158e38e3291e3d48162225fcdb2d5a3ed65a07baac614ab91432fd4f57"},"source":{"id":"1711.01121","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":"sha256:838e201c81a74017dcb39f8f38b08b561d861db2207fc68f18c3b80109783f15","target":"record","created_at":"2026-05-18T00:31:23Z","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":"c6d4b7f79358b1f70b7b5afef04bf8f2b71791c29d5a0899eded4603b0159597","cross_cats_sorted":[],"license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"astro-ph.GA","submitted_at":"2017-11-03T12:10:57Z","title_canon_sha256":"ca52df0df1cfe4447106135be56a886e72eb60e6062692bc84f121d65684d1b0"},"schema_version":"1.0","source":{"id":"1711.01121","kind":"arxiv","version":1}},"canonical_sha256":"460396ac6c415fa825cf54265beae6a92a2e316d17e9e70ddeb1711b6c970113","receipt":{"algorithm":"ed25519","builder_version":"pith-number-builder-2026-05-17-v1","canonical_sha256":"460396ac6c415fa825cf54265beae6a92a2e316d17e9e70ddeb1711b6c970113","first_computed_at":"2026-05-18T00:31:23.350745Z","key_id":"pith-v1-2026-05","kind":"pith_receipt","last_reissued_at":"2026-05-18T00:31:23.350745Z","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54","receipt_version":"0.3","signature_b64":"hQ15KyJ5fNPDSXuyqdmRTPsTtW8FLgVHOhzUDeuOL0qqUDqfuFOyXHzICKYJHKPPe4bs+BgyOFUc8Ghf1nw6Cw==","signature_status":"signed_v1","signed_at":"2026-05-18T00:31:23.351216Z","signed_message":"canonical_sha256_bytes"},"source_id":"1711.01121","source_kind":"arxiv","source_version":1}}},"equivocations":[],"invalid_events":[],"applied_event_ids":["sha256:838e201c81a74017dcb39f8f38b08b561d861db2207fc68f18c3b80109783f15","sha256:42268fa9a56769fb8546cd85dd6aed4e3765325a33d5337fb5be8aabfce49330"],"state_sha256":"b9334297cde64cd9e999823da2356e09c49aa1c3dca8b57283c1f956ad0bfd47"},"bundle_signature":{"signature_status":"signed_v1","algorithm":"ed25519","key_id":"pith-v1-2026-05","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54","signature_b64":"idkQT/GhGqqGznC+Cye19/cK7BocGU7mJL6OPiZLqQngWUJkk2W1ObGXn52Ql2GbcgQlYwOlh3o0Nxsza6l3DQ==","signed_message":"bundle_sha256_bytes","signed_at":"2026-05-28T17:20:06.745073Z","bundle_sha256":"8b9be99fd59f5449400499873bbf78581aa366eb567805983c3e69305b6ad0d0"}}