{"bundle_type":"pith_open_graph_bundle","bundle_version":"1.0","pith_number":"pith:2010:SEZCO72RNZC7XVSQDSWWO4QBVJ","short_pith_number":"pith:SEZCO72R","canonical_record":{"source":{"id":"1012.2047","kind":"arxiv","version":1},"metadata":{"license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"astro-ph.GA","submitted_at":"2010-12-09T16:49:02Z","cross_cats_sorted":[],"title_canon_sha256":"ee008a98f40d23ce8c23c144a0834eec8e7cdcd58e7093cfb251857fbe5803f8","abstract_canon_sha256":"316213b2da96582b2cb4039e1d92629acca3555a1febbf061543ed8336e22c5d"},"schema_version":"1.0"},"canonical_sha256":"9132277f516e45fbd6501cad677201aa57a6ef98f6d99501099ab36966af970a","source":{"kind":"arxiv","id":"1012.2047","version":1},"source_aliases":[{"alias_kind":"arxiv","alias_value":"1012.2047","created_at":"2026-05-18T02:04:31Z"},{"alias_kind":"arxiv_version","alias_value":"1012.2047v1","created_at":"2026-05-18T02:04:31Z"},{"alias_kind":"doi","alias_value":"10.48550/arxiv.1012.2047","created_at":"2026-05-18T02:04:31Z"},{"alias_kind":"pith_short_12","alias_value":"SEZCO72RNZC7","created_at":"2026-05-18T12:26:13Z"},{"alias_kind":"pith_short_16","alias_value":"SEZCO72RNZC7XVSQ","created_at":"2026-05-18T12:26:13Z"},{"alias_kind":"pith_short_8","alias_value":"SEZCO72R","created_at":"2026-05-18T12:26:13Z"}],"events":[{"event_type":"record_created","subject_pith_number":"pith:2010:SEZCO72RNZC7XVSQDSWWO4QBVJ","target":"record","payload":{"canonical_record":{"source":{"id":"1012.2047","kind":"arxiv","version":1},"metadata":{"license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"astro-ph.GA","submitted_at":"2010-12-09T16:49:02Z","cross_cats_sorted":[],"title_canon_sha256":"ee008a98f40d23ce8c23c144a0834eec8e7cdcd58e7093cfb251857fbe5803f8","abstract_canon_sha256":"316213b2da96582b2cb4039e1d92629acca3555a1febbf061543ed8336e22c5d"},"schema_version":"1.0"},"canonical_sha256":"9132277f516e45fbd6501cad677201aa57a6ef98f6d99501099ab36966af970a","receipt":{"kind":"pith_receipt","key_id":"pith-v1-2026-05","algorithm":"ed25519","signed_at":"2026-05-18T02:04:31.020034Z","signature_b64":"qzMMNxpvCZjxFNS0uTwSEZ1x70EabJH9SZ/4ClBNeEOR17/aXWh/qJDSE3ZM4hlWTze9x4HHDPYHGeT5zNPtCQ==","signed_message":"canonical_sha256_bytes","builder_version":"pith-number-builder-2026-05-17-v1","receipt_version":"0.3","canonical_sha256":"9132277f516e45fbd6501cad677201aa57a6ef98f6d99501099ab36966af970a","last_reissued_at":"2026-05-18T02:04:31.019305Z","signature_status":"signed_v1","first_computed_at":"2026-05-18T02:04:31.019305Z","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54"},"source_kind":"arxiv","source_id":"1012.2047","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":"2026-05-18T02:04:31Z","supersedes":[],"prev_event":null,"signature":{"signature_status":"signed_v1","algorithm":"ed25519","key_id":"pith-v1-2026-05","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54","signature_b64":"3Nf7K1LznpgfVFzdqu9zGYZoq65coCVvJLt3T8WAG1GOp3RfttroMCjAh7+KllJVoOVqAHWuRgN760cox082Cg==","signed_message":"open_graph_event_sha256_bytes","signed_at":"2026-06-01T04:24:17.944604Z"},"content_sha256":"5f1143fba5298c893a26c895768b0493f64bbe526b9c91ce325ef78128bee74b","schema_version":"1.0","event_id":"sha256:5f1143fba5298c893a26c895768b0493f64bbe526b9c91ce325ef78128bee74b"},{"event_type":"graph_snapshot","subject_pith_number":"pith:2010:SEZCO72RNZC7XVSQDSWWO4QBVJ","target":"graph","payload":{"graph_snapshot":{"paper":{"title":"Spectroscopy Unveils the Complex Nature of Terzan 5","license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","headline":"","cross_cats":[],"primary_cat":"astro-ph.GA","authors_text":"A. Mucciarelli, B. Lanzoni, E. Dalessandro, E. Valenti, F. R. Ferraro, G. Beccari, L. Origlia, M. Bellazzini, R. M. Rich","submitted_at":"2010-12-09T16:49:02Z","abstract_excerpt":"We present the chemical abundance analysis of 33 red giant stars belonging to the complex stellar system Terzan 5. We confirm the discovery of two stellar populations (Ferraro et al. 2009, Nature, 462,483) with distinct iron abundances: a relatively metal-poor component with [Fe/H]=-0.25 +/- 0.07 r.m.s., and another component with [Fe/H]=+0.27 +/- 0.04 r.m.s., exceeding in metallicity any known Galactic globular cluster. The two populations also show different [alpha/Fe] abundance ratios. The metal-poor component has an average [alpha/Fe]=+0.34 +/- 0.06 r.m.s., consistent with the canonical sc"},"claims":{"count":0,"items":[],"snapshot_sha256":"258153158e38e3291e3d48162225fcdb2d5a3ed65a07baac614ab91432fd4f57"},"source":{"id":"1012.2047","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":"2026-05-18T02:04:31Z","supersedes":[],"prev_event":null,"signature":{"signature_status":"signed_v1","algorithm":"ed25519","key_id":"pith-v1-2026-05","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54","signature_b64":"Nmf2keWm7URGl5MXUErfeD0uYwctfdmLsjjUcoLaymyEdONK/YJov6lSXsmoIzal2keUg8BgU2aX7t+Iluk9Dg==","signed_message":"open_graph_event_sha256_bytes","signed_at":"2026-06-01T04:24:17.945027Z"},"content_sha256":"42c519c0454a6b661e529140901280ee123312377d85f2bba57e917d2d57b8f1","schema_version":"1.0","event_id":"sha256:42c519c0454a6b661e529140901280ee123312377d85f2bba57e917d2d57b8f1"}],"timestamp_proofs":[],"mirror_hints":[{"mirror_type":"https","name":"Pith Resolver","base_url":"https://pith.science","bundle_url":"https://pith.science/pith/SEZCO72RNZC7XVSQDSWWO4QBVJ/bundle.json","state_url":"https://pith.science/pith/SEZCO72RNZC7XVSQDSWWO4QBVJ/state.json","well_known_bundle_url":"https://pith.science/.well-known/pith/SEZCO72RNZC7XVSQDSWWO4QBVJ/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":"2026-06-01T04:24:17Z","links":{"resolver":"https://pith.science/pith/SEZCO72RNZC7XVSQDSWWO4QBVJ","bundle":"https://pith.science/pith/SEZCO72RNZC7XVSQDSWWO4QBVJ/bundle.json","state":"https://pith.science/pith/SEZCO72RNZC7XVSQDSWWO4QBVJ/state.json","well_known_bundle":"https://pith.science/.well-known/pith/SEZCO72RNZC7XVSQDSWWO4QBVJ/bundle.json"},"state":{"state_type":"pith_open_graph_state","state_version":"1.0","pith_number":"pith:2010:SEZCO72RNZC7XVSQDSWWO4QBVJ","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":"316213b2da96582b2cb4039e1d92629acca3555a1febbf061543ed8336e22c5d","cross_cats_sorted":[],"license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"astro-ph.GA","submitted_at":"2010-12-09T16:49:02Z","title_canon_sha256":"ee008a98f40d23ce8c23c144a0834eec8e7cdcd58e7093cfb251857fbe5803f8"},"schema_version":"1.0","source":{"id":"1012.2047","kind":"arxiv","version":1}},"source_aliases":[{"alias_kind":"arxiv","alias_value":"1012.2047","created_at":"2026-05-18T02:04:31Z"},{"alias_kind":"arxiv_version","alias_value":"1012.2047v1","created_at":"2026-05-18T02:04:31Z"},{"alias_kind":"doi","alias_value":"10.48550/arxiv.1012.2047","created_at":"2026-05-18T02:04:31Z"},{"alias_kind":"pith_short_12","alias_value":"SEZCO72RNZC7","created_at":"2026-05-18T12:26:13Z"},{"alias_kind":"pith_short_16","alias_value":"SEZCO72RNZC7XVSQ","created_at":"2026-05-18T12:26:13Z"},{"alias_kind":"pith_short_8","alias_value":"SEZCO72R","created_at":"2026-05-18T12:26:13Z"}],"graph_snapshots":[{"event_id":"sha256:42c519c0454a6b661e529140901280ee123312377d85f2bba57e917d2d57b8f1","target":"graph","created_at":"2026-05-18T02:04:31Z","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":"We present the chemical abundance analysis of 33 red giant stars belonging to the complex stellar system Terzan 5. We confirm the discovery of two stellar populations (Ferraro et al. 2009, Nature, 462,483) with distinct iron abundances: a relatively metal-poor component with [Fe/H]=-0.25 +/- 0.07 r.m.s., and another component with [Fe/H]=+0.27 +/- 0.04 r.m.s., exceeding in metallicity any known Galactic globular cluster. The two populations also show different [alpha/Fe] abundance ratios. The metal-poor component has an average [alpha/Fe]=+0.34 +/- 0.06 r.m.s., consistent with the canonical sc","authors_text":"A. Mucciarelli, B. Lanzoni, E. Dalessandro, E. Valenti, F. R. Ferraro, G. Beccari, L. Origlia, M. Bellazzini, R. M. Rich","cross_cats":[],"headline":"","license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"astro-ph.GA","submitted_at":"2010-12-09T16:49:02Z","title":"Spectroscopy Unveils the Complex Nature of Terzan 5"},"references":{"count":0,"internal_anchors":0,"resolved_work":0,"sample":[],"snapshot_sha256":"258153158e38e3291e3d48162225fcdb2d5a3ed65a07baac614ab91432fd4f57"},"source":{"id":"1012.2047","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":"sha256:5f1143fba5298c893a26c895768b0493f64bbe526b9c91ce325ef78128bee74b","target":"record","created_at":"2026-05-18T02:04:31Z","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":"316213b2da96582b2cb4039e1d92629acca3555a1febbf061543ed8336e22c5d","cross_cats_sorted":[],"license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"astro-ph.GA","submitted_at":"2010-12-09T16:49:02Z","title_canon_sha256":"ee008a98f40d23ce8c23c144a0834eec8e7cdcd58e7093cfb251857fbe5803f8"},"schema_version":"1.0","source":{"id":"1012.2047","kind":"arxiv","version":1}},"canonical_sha256":"9132277f516e45fbd6501cad677201aa57a6ef98f6d99501099ab36966af970a","receipt":{"algorithm":"ed25519","builder_version":"pith-number-builder-2026-05-17-v1","canonical_sha256":"9132277f516e45fbd6501cad677201aa57a6ef98f6d99501099ab36966af970a","first_computed_at":"2026-05-18T02:04:31.019305Z","key_id":"pith-v1-2026-05","kind":"pith_receipt","last_reissued_at":"2026-05-18T02:04:31.019305Z","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54","receipt_version":"0.3","signature_b64":"qzMMNxpvCZjxFNS0uTwSEZ1x70EabJH9SZ/4ClBNeEOR17/aXWh/qJDSE3ZM4hlWTze9x4HHDPYHGeT5zNPtCQ==","signature_status":"signed_v1","signed_at":"2026-05-18T02:04:31.020034Z","signed_message":"canonical_sha256_bytes"},"source_id":"1012.2047","source_kind":"arxiv","source_version":1}}},"equivocations":[],"invalid_events":[],"applied_event_ids":["sha256:5f1143fba5298c893a26c895768b0493f64bbe526b9c91ce325ef78128bee74b","sha256:42c519c0454a6b661e529140901280ee123312377d85f2bba57e917d2d57b8f1"],"state_sha256":"a75efa9c44461138df14efa7d8a18ed6637244278af59b8c51e9628de13f67e9"},"bundle_signature":{"signature_status":"signed_v1","algorithm":"ed25519","key_id":"pith-v1-2026-05","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54","signature_b64":"J4NUu+hHR6MAuCBWvHYdHIi3z1YQ5IspA35/ziQBFzeRJAp+GcK3QQ/jLfndbYCP1v0NK00PkjgSGpkxMOgpBA==","signed_message":"bundle_sha256_bytes","signed_at":"2026-06-01T04:24:17.947373Z","bundle_sha256":"69dfca4f06b3f4c6e583a75ef6a9313c0f69871d7036fc29eb3bbf7f31a88960"}}