{"bundle_type":"pith_open_graph_bundle","bundle_version":"1.0","pith_number":"pith:2016:IRIR6MGMZB3S7ROGP6QS22DSRH","short_pith_number":"pith:IRIR6MGM","canonical_record":{"source":{"id":"1612.00218","kind":"arxiv","version":1},"metadata":{"license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"astro-ph.GA","submitted_at":"2016-12-01T12:13:45Z","cross_cats_sorted":[],"title_canon_sha256":"316b609ccc5be2850e717e2cf4cbd4cc1cab2a91c4ff7d4868d53b9030dc0fa0","abstract_canon_sha256":"683a5bce5571d0c417a2b3a186b61fb9d7c1ef81554662da9dac20308e18acff"},"schema_version":"1.0"},"canonical_sha256":"44511f30ccc8772fc5c67fa12d687289c284523d464f112687059dc493fbecca","source":{"kind":"arxiv","id":"1612.00218","version":1},"source_aliases":[{"alias_kind":"arxiv","alias_value":"1612.00218","created_at":"2026-05-18T00:52:37Z"},{"alias_kind":"arxiv_version","alias_value":"1612.00218v1","created_at":"2026-05-18T00:52:37Z"},{"alias_kind":"doi","alias_value":"10.48550/arxiv.1612.00218","created_at":"2026-05-18T00:52:37Z"},{"alias_kind":"pith_short_12","alias_value":"IRIR6MGMZB3S","created_at":"2026-05-18T12:30:22Z"},{"alias_kind":"pith_short_16","alias_value":"IRIR6MGMZB3S7ROG","created_at":"2026-05-18T12:30:22Z"},{"alias_kind":"pith_short_8","alias_value":"IRIR6MGM","created_at":"2026-05-18T12:30:22Z"}],"events":[{"event_type":"record_created","subject_pith_number":"pith:2016:IRIR6MGMZB3S7ROGP6QS22DSRH","target":"record","payload":{"canonical_record":{"source":{"id":"1612.00218","kind":"arxiv","version":1},"metadata":{"license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"astro-ph.GA","submitted_at":"2016-12-01T12:13:45Z","cross_cats_sorted":[],"title_canon_sha256":"316b609ccc5be2850e717e2cf4cbd4cc1cab2a91c4ff7d4868d53b9030dc0fa0","abstract_canon_sha256":"683a5bce5571d0c417a2b3a186b61fb9d7c1ef81554662da9dac20308e18acff"},"schema_version":"1.0"},"canonical_sha256":"44511f30ccc8772fc5c67fa12d687289c284523d464f112687059dc493fbecca","receipt":{"kind":"pith_receipt","key_id":"pith-v1-2026-05","algorithm":"ed25519","signed_at":"2026-05-18T00:52:37.472285Z","signature_b64":"qR8Toq1uFV3n8BLbn2z4a8xdsDIh6/94XoqmnFRrez6wFpzChMVzRX/GO5YrY3LQ2bluNcV2b74nlfWRKEAoCA==","signed_message":"canonical_sha256_bytes","builder_version":"pith-number-builder-2026-05-17-v1","receipt_version":"0.3","canonical_sha256":"44511f30ccc8772fc5c67fa12d687289c284523d464f112687059dc493fbecca","last_reissued_at":"2026-05-18T00:52:37.471854Z","signature_status":"signed_v1","first_computed_at":"2026-05-18T00:52:37.471854Z","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54"},"source_kind":"arxiv","source_id":"1612.00218","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":"2026-05-18T00:52:37Z","supersedes":[],"prev_event":null,"signature":{"signature_status":"signed_v1","algorithm":"ed25519","key_id":"pith-v1-2026-05","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54","signature_b64":"ZKctR1Yr5SKWQVDCJZoguqRMzrW7UG2qRKoxxuXhY3Meo402rJcmpL8LhRvm6faPqKO5Z4uDLhxpn1gumgE4Cg==","signed_message":"open_graph_event_sha256_bytes","signed_at":"2026-07-04T02:49:02.068439Z"},"content_sha256":"542afadabbe884f4140fad40a115f7579c2caae2a04fb809f750e3a46e794291","schema_version":"1.0","event_id":"sha256:542afadabbe884f4140fad40a115f7579c2caae2a04fb809f750e3a46e794291"},{"event_type":"graph_snapshot","subject_pith_number":"pith:2016:IRIR6MGMZB3S7ROGP6QS22DSRH","target":"graph","payload":{"graph_snapshot":{"paper":{"title":"Highly dynamically evolved intermediate-age open clusters","license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","headline":"","cross_cats":[],"primary_cat":"astro-ph.GA","authors_text":"Andr\\'es E. Piatti, Laura M. Sampedro, Wilton S. Dias","submitted_at":"2016-12-01T12:13:45Z","abstract_excerpt":"We present a comprehensive UBVRI and Washington CT1T2 photometric analysis of seven catalogued open clusters, namely: Ruprecht 3, 9, 37, 74, 150, ESO 324-15 and 436-2. The multi-band photometric data sets in combination with 2MASS photometry and Gaia astrometry for the brighter stars were used to estimate their structural parameters and fundamental astrophysical properties. We found that Ruprecht 3 and ESO 436-2 do not show self-consistent evidence of being physical systems. The remained studied objects are open clusters of intermediate-age (9.0 < log(t yr-1) < 9.6), of relatively small size ("},"claims":{"count":0,"items":[],"snapshot_sha256":"258153158e38e3291e3d48162225fcdb2d5a3ed65a07baac614ab91432fd4f57"},"source":{"id":"1612.00218","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":"2026-05-18T00:52:37Z","supersedes":[],"prev_event":null,"signature":{"signature_status":"signed_v1","algorithm":"ed25519","key_id":"pith-v1-2026-05","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54","signature_b64":"6B27rwjMKxL8tfMYNPks4iAxcvRRFwEc5d16gf5c9u9/aiLqS1A0/GJTd9lzwNef26aiVCqgWexQFH/7/GzCDQ==","signed_message":"open_graph_event_sha256_bytes","signed_at":"2026-07-04T02:49:02.068812Z"},"content_sha256":"a9c9552f166a42d64a239a088d95fce2c197467993a1e48bfa36e35d4ed9d01d","schema_version":"1.0","event_id":"sha256:a9c9552f166a42d64a239a088d95fce2c197467993a1e48bfa36e35d4ed9d01d"}],"timestamp_proofs":[],"mirror_hints":[{"mirror_type":"https","name":"Pith Resolver","base_url":"https://pith.science","bundle_url":"https://pith.science/pith/IRIR6MGMZB3S7ROGP6QS22DSRH/bundle.json","state_url":"https://pith.science/pith/IRIR6MGMZB3S7ROGP6QS22DSRH/state.json","well_known_bundle_url":"https://pith.science/.well-known/pith/IRIR6MGMZB3S7ROGP6QS22DSRH/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":"2026-07-04T02:49:02Z","links":{"resolver":"https://pith.science/pith/IRIR6MGMZB3S7ROGP6QS22DSRH","bundle":"https://pith.science/pith/IRIR6MGMZB3S7ROGP6QS22DSRH/bundle.json","state":"https://pith.science/pith/IRIR6MGMZB3S7ROGP6QS22DSRH/state.json","well_known_bundle":"https://pith.science/.well-known/pith/IRIR6MGMZB3S7ROGP6QS22DSRH/bundle.json"},"state":{"state_type":"pith_open_graph_state","state_version":"1.0","pith_number":"pith:2016:IRIR6MGMZB3S7ROGP6QS22DSRH","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":"683a5bce5571d0c417a2b3a186b61fb9d7c1ef81554662da9dac20308e18acff","cross_cats_sorted":[],"license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"astro-ph.GA","submitted_at":"2016-12-01T12:13:45Z","title_canon_sha256":"316b609ccc5be2850e717e2cf4cbd4cc1cab2a91c4ff7d4868d53b9030dc0fa0"},"schema_version":"1.0","source":{"id":"1612.00218","kind":"arxiv","version":1}},"source_aliases":[{"alias_kind":"arxiv","alias_value":"1612.00218","created_at":"2026-05-18T00:52:37Z"},{"alias_kind":"arxiv_version","alias_value":"1612.00218v1","created_at":"2026-05-18T00:52:37Z"},{"alias_kind":"doi","alias_value":"10.48550/arxiv.1612.00218","created_at":"2026-05-18T00:52:37Z"},{"alias_kind":"pith_short_12","alias_value":"IRIR6MGMZB3S","created_at":"2026-05-18T12:30:22Z"},{"alias_kind":"pith_short_16","alias_value":"IRIR6MGMZB3S7ROG","created_at":"2026-05-18T12:30:22Z"},{"alias_kind":"pith_short_8","alias_value":"IRIR6MGM","created_at":"2026-05-18T12:30:22Z"}],"graph_snapshots":[{"event_id":"sha256:a9c9552f166a42d64a239a088d95fce2c197467993a1e48bfa36e35d4ed9d01d","target":"graph","created_at":"2026-05-18T00:52:37Z","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 a comprehensive UBVRI and Washington CT1T2 photometric analysis of seven catalogued open clusters, namely: Ruprecht 3, 9, 37, 74, 150, ESO 324-15 and 436-2. The multi-band photometric data sets in combination with 2MASS photometry and Gaia astrometry for the brighter stars were used to estimate their structural parameters and fundamental astrophysical properties. We found that Ruprecht 3 and ESO 436-2 do not show self-consistent evidence of being physical systems. The remained studied objects are open clusters of intermediate-age (9.0 < log(t yr-1) < 9.6), of relatively small size (","authors_text":"Andr\\'es E. Piatti, Laura M. Sampedro, Wilton S. Dias","cross_cats":[],"headline":"","license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"astro-ph.GA","submitted_at":"2016-12-01T12:13:45Z","title":"Highly dynamically evolved intermediate-age open clusters"},"references":{"count":0,"internal_anchors":0,"resolved_work":0,"sample":[],"snapshot_sha256":"258153158e38e3291e3d48162225fcdb2d5a3ed65a07baac614ab91432fd4f57"},"source":{"id":"1612.00218","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":"sha256:542afadabbe884f4140fad40a115f7579c2caae2a04fb809f750e3a46e794291","target":"record","created_at":"2026-05-18T00:52:37Z","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":"683a5bce5571d0c417a2b3a186b61fb9d7c1ef81554662da9dac20308e18acff","cross_cats_sorted":[],"license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"astro-ph.GA","submitted_at":"2016-12-01T12:13:45Z","title_canon_sha256":"316b609ccc5be2850e717e2cf4cbd4cc1cab2a91c4ff7d4868d53b9030dc0fa0"},"schema_version":"1.0","source":{"id":"1612.00218","kind":"arxiv","version":1}},"canonical_sha256":"44511f30ccc8772fc5c67fa12d687289c284523d464f112687059dc493fbecca","receipt":{"algorithm":"ed25519","builder_version":"pith-number-builder-2026-05-17-v1","canonical_sha256":"44511f30ccc8772fc5c67fa12d687289c284523d464f112687059dc493fbecca","first_computed_at":"2026-05-18T00:52:37.471854Z","key_id":"pith-v1-2026-05","kind":"pith_receipt","last_reissued_at":"2026-05-18T00:52:37.471854Z","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54","receipt_version":"0.3","signature_b64":"qR8Toq1uFV3n8BLbn2z4a8xdsDIh6/94XoqmnFRrez6wFpzChMVzRX/GO5YrY3LQ2bluNcV2b74nlfWRKEAoCA==","signature_status":"signed_v1","signed_at":"2026-05-18T00:52:37.472285Z","signed_message":"canonical_sha256_bytes"},"source_id":"1612.00218","source_kind":"arxiv","source_version":1}}},"equivocations":[],"invalid_events":[],"applied_event_ids":["sha256:542afadabbe884f4140fad40a115f7579c2caae2a04fb809f750e3a46e794291","sha256:a9c9552f166a42d64a239a088d95fce2c197467993a1e48bfa36e35d4ed9d01d"],"state_sha256":"cf3453a5db1a4811cbd881df176cbe4e3581eabf36b5a95ff89bb70acf6f7386"},"bundle_signature":{"signature_status":"signed_v1","algorithm":"ed25519","key_id":"pith-v1-2026-05","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54","signature_b64":"JuXLNYElapSt8dCJEa7keR8x2Uu5yrTTNWgX0T0t5x9W/TwLq+bXDBlQvcUyipY72Pj526H0/gslUOhG7rmXCg==","signed_message":"bundle_sha256_bytes","signed_at":"2026-07-04T02:49:02.070717Z","bundle_sha256":"df7bab12f71582361767759078abde5f48fa7acb5705273d8a122720d2b4ae44"}}