{"bundle_type":"pith_open_graph_bundle","bundle_version":"1.0","pith_number":"pith:2016:KBZTJCY6HL35NUIHZ2JXJOBTKE","short_pith_number":"pith:KBZTJCY6","canonical_record":{"source":{"id":"1609.01515","kind":"arxiv","version":1},"metadata":{"license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"astro-ph.GA","submitted_at":"2016-09-06T12:35:49Z","cross_cats_sorted":["astro-ph.SR"],"title_canon_sha256":"9b952dda22aec9131981dd0866a85f915dbf1ac2e1e7f5031c6484794a588c45","abstract_canon_sha256":"d414db7a5bdd5c72e9e9b7424f51e837c2fc58751b401d63c908fefdb77b5bb7"},"schema_version":"1.0"},"canonical_sha256":"5073348b1e3af7d6d107ce9374b8335101399e2360fa362d0541daefcc3246bd","source":{"kind":"arxiv","id":"1609.01515","version":1},"source_aliases":[{"alias_kind":"arxiv","alias_value":"1609.01515","created_at":"2026-05-18T01:04:10Z"},{"alias_kind":"arxiv_version","alias_value":"1609.01515v1","created_at":"2026-05-18T01:04:10Z"},{"alias_kind":"doi","alias_value":"10.48550/arxiv.1609.01515","created_at":"2026-05-18T01:04:10Z"},{"alias_kind":"pith_short_12","alias_value":"KBZTJCY6HL35","created_at":"2026-05-18T12:30:25Z"},{"alias_kind":"pith_short_16","alias_value":"KBZTJCY6HL35NUIH","created_at":"2026-05-18T12:30:25Z"},{"alias_kind":"pith_short_8","alias_value":"KBZTJCY6","created_at":"2026-05-18T12:30:25Z"}],"events":[{"event_type":"record_created","subject_pith_number":"pith:2016:KBZTJCY6HL35NUIHZ2JXJOBTKE","target":"record","payload":{"canonical_record":{"source":{"id":"1609.01515","kind":"arxiv","version":1},"metadata":{"license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"astro-ph.GA","submitted_at":"2016-09-06T12:35:49Z","cross_cats_sorted":["astro-ph.SR"],"title_canon_sha256":"9b952dda22aec9131981dd0866a85f915dbf1ac2e1e7f5031c6484794a588c45","abstract_canon_sha256":"d414db7a5bdd5c72e9e9b7424f51e837c2fc58751b401d63c908fefdb77b5bb7"},"schema_version":"1.0"},"canonical_sha256":"5073348b1e3af7d6d107ce9374b8335101399e2360fa362d0541daefcc3246bd","receipt":{"kind":"pith_receipt","key_id":"pith-v1-2026-05","algorithm":"ed25519","signed_at":"2026-05-18T01:04:10.034523Z","signature_b64":"Kp87o1HxK2+cQSk7zkp0azwqGUo6u/1PvszmYGJbq0+F+Ss2W7CgUxhOzaMHvqaXpgx0ch8ZnZQkAIWUChCxDw==","signed_message":"canonical_sha256_bytes","builder_version":"pith-number-builder-2026-05-17-v1","receipt_version":"0.3","canonical_sha256":"5073348b1e3af7d6d107ce9374b8335101399e2360fa362d0541daefcc3246bd","last_reissued_at":"2026-05-18T01:04:10.033916Z","signature_status":"signed_v1","first_computed_at":"2026-05-18T01:04:10.033916Z","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54"},"source_kind":"arxiv","source_id":"1609.01515","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":"2026-05-18T01:04:10Z","supersedes":[],"prev_event":null,"signature":{"signature_status":"signed_v1","algorithm":"ed25519","key_id":"pith-v1-2026-05","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54","signature_b64":"lHUb6rJ2xdCdV6pLCaE6Usqa1izO5Q0HidKYui0KbjFawwtDkSpVweZDRMhg4Qh677rHhEG/72ieq2sY4DBMDQ==","signed_message":"open_graph_event_sha256_bytes","signed_at":"2026-05-26T09:42:19.063688Z"},"content_sha256":"c17c988458ad166b07fd6eaa9908d0b24a45bf12020a36b9e257924034c96c8a","schema_version":"1.0","event_id":"sha256:c17c988458ad166b07fd6eaa9908d0b24a45bf12020a36b9e257924034c96c8a"},{"event_type":"graph_snapshot","subject_pith_number":"pith:2016:KBZTJCY6HL35NUIHZ2JXJOBTKE","target":"graph","payload":{"graph_snapshot":{"paper":{"title":"The age of the young bulge-like population in the stellar system Terzan5: linking the Galactic bulge to the high-z Universe","license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","headline":"","cross_cats":["astro-ph.SR"],"primary_cat":"astro-ph.GA","authors_text":"2), 2 INAF-Bologna, 3), 3 Kapteyn Astronomical Institute, 4 UCLA), A. Mucciarelli (1) - (1 DIFA, B. Lanzoni (1), D. Massari (2, E. Dalessandro (1, F.R. Ferraro (1), Groningen, L. Origlia (2), R. M. Rich (4), Univ. Bologna","submitted_at":"2016-09-06T12:35:49Z","abstract_excerpt":"The Galactic bulge is dominated by an old, metal rich stellar population. The possible presence and the amount of a young (a few Gyr old) minor component is one of the major issues debated in the literature. Recently, the bulge stellar system Terzan 5 was found to harbor three sub-populations with iron content varying by more than one order of magnitude (from 0.2 up to 2 times the solar value), with chemical abundance patterns strikingly similar to those observed in bulge field stars. Here we report on the detection of two distinct main sequence turn-off points in Terzan 5, providing the age o"},"claims":{"count":0,"items":[],"snapshot_sha256":"258153158e38e3291e3d48162225fcdb2d5a3ed65a07baac614ab91432fd4f57"},"source":{"id":"1609.01515","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":"2026-05-18T01:04:10Z","supersedes":[],"prev_event":null,"signature":{"signature_status":"signed_v1","algorithm":"ed25519","key_id":"pith-v1-2026-05","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54","signature_b64":"/Zg1rtEzf8baFDHDxz3krhR7zZ9tpdhz35wE8kcuBdv1W9jmJXxKEKo51Nuc9cxdlPKdRcIp/XH/Dko9zUTEDw==","signed_message":"open_graph_event_sha256_bytes","signed_at":"2026-05-26T09:42:19.064131Z"},"content_sha256":"ce12a7eb32f61cb8f97c30b661d9bcf216f52628552f15d5cb114700b01f3b9d","schema_version":"1.0","event_id":"sha256:ce12a7eb32f61cb8f97c30b661d9bcf216f52628552f15d5cb114700b01f3b9d"}],"timestamp_proofs":[],"mirror_hints":[{"mirror_type":"https","name":"Pith Resolver","base_url":"https://pith.science","bundle_url":"https://pith.science/pith/KBZTJCY6HL35NUIHZ2JXJOBTKE/bundle.json","state_url":"https://pith.science/pith/KBZTJCY6HL35NUIHZ2JXJOBTKE/state.json","well_known_bundle_url":"https://pith.science/.well-known/pith/KBZTJCY6HL35NUIHZ2JXJOBTKE/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":"2026-05-26T09:42:19Z","links":{"resolver":"https://pith.science/pith/KBZTJCY6HL35NUIHZ2JXJOBTKE","bundle":"https://pith.science/pith/KBZTJCY6HL35NUIHZ2JXJOBTKE/bundle.json","state":"https://pith.science/pith/KBZTJCY6HL35NUIHZ2JXJOBTKE/state.json","well_known_bundle":"https://pith.science/.well-known/pith/KBZTJCY6HL35NUIHZ2JXJOBTKE/bundle.json"},"state":{"state_type":"pith_open_graph_state","state_version":"1.0","pith_number":"pith:2016:KBZTJCY6HL35NUIHZ2JXJOBTKE","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":"d414db7a5bdd5c72e9e9b7424f51e837c2fc58751b401d63c908fefdb77b5bb7","cross_cats_sorted":["astro-ph.SR"],"license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"astro-ph.GA","submitted_at":"2016-09-06T12:35:49Z","title_canon_sha256":"9b952dda22aec9131981dd0866a85f915dbf1ac2e1e7f5031c6484794a588c45"},"schema_version":"1.0","source":{"id":"1609.01515","kind":"arxiv","version":1}},"source_aliases":[{"alias_kind":"arxiv","alias_value":"1609.01515","created_at":"2026-05-18T01:04:10Z"},{"alias_kind":"arxiv_version","alias_value":"1609.01515v1","created_at":"2026-05-18T01:04:10Z"},{"alias_kind":"doi","alias_value":"10.48550/arxiv.1609.01515","created_at":"2026-05-18T01:04:10Z"},{"alias_kind":"pith_short_12","alias_value":"KBZTJCY6HL35","created_at":"2026-05-18T12:30:25Z"},{"alias_kind":"pith_short_16","alias_value":"KBZTJCY6HL35NUIH","created_at":"2026-05-18T12:30:25Z"},{"alias_kind":"pith_short_8","alias_value":"KBZTJCY6","created_at":"2026-05-18T12:30:25Z"}],"graph_snapshots":[{"event_id":"sha256:ce12a7eb32f61cb8f97c30b661d9bcf216f52628552f15d5cb114700b01f3b9d","target":"graph","created_at":"2026-05-18T01:04:10Z","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 Galactic bulge is dominated by an old, metal rich stellar population. The possible presence and the amount of a young (a few Gyr old) minor component is one of the major issues debated in the literature. Recently, the bulge stellar system Terzan 5 was found to harbor three sub-populations with iron content varying by more than one order of magnitude (from 0.2 up to 2 times the solar value), with chemical abundance patterns strikingly similar to those observed in bulge field stars. Here we report on the detection of two distinct main sequence turn-off points in Terzan 5, providing the age o","authors_text":"2), 2 INAF-Bologna, 3), 3 Kapteyn Astronomical Institute, 4 UCLA), A. Mucciarelli (1) - (1 DIFA, B. Lanzoni (1), D. Massari (2, E. Dalessandro (1, F.R. Ferraro (1), Groningen, L. Origlia (2), R. M. Rich (4), Univ. Bologna","cross_cats":["astro-ph.SR"],"headline":"","license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"astro-ph.GA","submitted_at":"2016-09-06T12:35:49Z","title":"The age of the young bulge-like population in the stellar system Terzan5: linking the Galactic bulge to the high-z Universe"},"references":{"count":0,"internal_anchors":0,"resolved_work":0,"sample":[],"snapshot_sha256":"258153158e38e3291e3d48162225fcdb2d5a3ed65a07baac614ab91432fd4f57"},"source":{"id":"1609.01515","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:c17c988458ad166b07fd6eaa9908d0b24a45bf12020a36b9e257924034c96c8a","target":"record","created_at":"2026-05-18T01:04:10Z","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":"d414db7a5bdd5c72e9e9b7424f51e837c2fc58751b401d63c908fefdb77b5bb7","cross_cats_sorted":["astro-ph.SR"],"license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"astro-ph.GA","submitted_at":"2016-09-06T12:35:49Z","title_canon_sha256":"9b952dda22aec9131981dd0866a85f915dbf1ac2e1e7f5031c6484794a588c45"},"schema_version":"1.0","source":{"id":"1609.01515","kind":"arxiv","version":1}},"canonical_sha256":"5073348b1e3af7d6d107ce9374b8335101399e2360fa362d0541daefcc3246bd","receipt":{"algorithm":"ed25519","builder_version":"pith-number-builder-2026-05-17-v1","canonical_sha256":"5073348b1e3af7d6d107ce9374b8335101399e2360fa362d0541daefcc3246bd","first_computed_at":"2026-05-18T01:04:10.033916Z","key_id":"pith-v1-2026-05","kind":"pith_receipt","last_reissued_at":"2026-05-18T01:04:10.033916Z","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54","receipt_version":"0.3","signature_b64":"Kp87o1HxK2+cQSk7zkp0azwqGUo6u/1PvszmYGJbq0+F+Ss2W7CgUxhOzaMHvqaXpgx0ch8ZnZQkAIWUChCxDw==","signature_status":"signed_v1","signed_at":"2026-05-18T01:04:10.034523Z","signed_message":"canonical_sha256_bytes"},"source_id":"1609.01515","source_kind":"arxiv","source_version":1}}},"equivocations":[],"invalid_events":[],"applied_event_ids":["sha256:c17c988458ad166b07fd6eaa9908d0b24a45bf12020a36b9e257924034c96c8a","sha256:ce12a7eb32f61cb8f97c30b661d9bcf216f52628552f15d5cb114700b01f3b9d"],"state_sha256":"50ba98fc90c8186e0e9b9e05af50c341100e801c08614ad2520db5c426423550"},"bundle_signature":{"signature_status":"signed_v1","algorithm":"ed25519","key_id":"pith-v1-2026-05","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54","signature_b64":"wlNGqIz611oipKopC49/68OnGhy3eXhtxh6svSPUsGXXIszFUp5D/okdKHCdMl+K//3WQrFcU5mMZErsub57AQ==","signed_message":"bundle_sha256_bytes","signed_at":"2026-05-26T09:42:19.067717Z","bundle_sha256":"ed8b6b40b855bef91ba8727588d255fd87fc3e61905b7d0fff94887c9f2b6bc4"}}