{"bundle_type":"pith_open_graph_bundle","bundle_version":"1.0","pith_number":"pith:2013:JUZAPT4THMAOFVDGU4RLUOBBHQ","short_pith_number":"pith:JUZAPT4T","canonical_record":{"source":{"id":"1308.5822","kind":"arxiv","version":1},"metadata":{"license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"astro-ph.GA","submitted_at":"2013-08-27T11:06:03Z","cross_cats_sorted":[],"title_canon_sha256":"b8a9563ed81667b5be6e77087860709edaa7095ecde52a3228f5999120258198","abstract_canon_sha256":"d668b01e2e7143aa388ee64ac74bef52ac98da648fc43ea910d3fdfa8c138245"},"schema_version":"1.0"},"canonical_sha256":"4d3207cf933b00e2d466a722ba38213c1275cb32c14c7ffac4ea384493fce7aa","source":{"kind":"arxiv","id":"1308.5822","version":1},"source_aliases":[{"alias_kind":"arxiv","alias_value":"1308.5822","created_at":"2026-05-18T01:47:58Z"},{"alias_kind":"arxiv_version","alias_value":"1308.5822v1","created_at":"2026-05-18T01:47:58Z"},{"alias_kind":"doi","alias_value":"10.48550/arxiv.1308.5822","created_at":"2026-05-18T01:47:58Z"},{"alias_kind":"pith_short_12","alias_value":"JUZAPT4THMAO","created_at":"2026-05-18T12:27:49Z"},{"alias_kind":"pith_short_16","alias_value":"JUZAPT4THMAOFVDG","created_at":"2026-05-18T12:27:49Z"},{"alias_kind":"pith_short_8","alias_value":"JUZAPT4T","created_at":"2026-05-18T12:27:49Z"}],"events":[{"event_type":"record_created","subject_pith_number":"pith:2013:JUZAPT4THMAOFVDGU4RLUOBBHQ","target":"record","payload":{"canonical_record":{"source":{"id":"1308.5822","kind":"arxiv","version":1},"metadata":{"license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"astro-ph.GA","submitted_at":"2013-08-27T11:06:03Z","cross_cats_sorted":[],"title_canon_sha256":"b8a9563ed81667b5be6e77087860709edaa7095ecde52a3228f5999120258198","abstract_canon_sha256":"d668b01e2e7143aa388ee64ac74bef52ac98da648fc43ea910d3fdfa8c138245"},"schema_version":"1.0"},"canonical_sha256":"4d3207cf933b00e2d466a722ba38213c1275cb32c14c7ffac4ea384493fce7aa","receipt":{"kind":"pith_receipt","key_id":"pith-v1-2026-05","algorithm":"ed25519","signed_at":"2026-05-18T01:47:58.051474Z","signature_b64":"sr6bkibK17WGFem4Hlm1MI8vD7NlRdt3iQO4jStYeytRpI5ZL6bOwWRlTwJdHS8w5rkX1lXPQEx1ra4ku3pNBQ==","signed_message":"canonical_sha256_bytes","builder_version":"pith-number-builder-2026-05-17-v1","receipt_version":"0.3","canonical_sha256":"4d3207cf933b00e2d466a722ba38213c1275cb32c14c7ffac4ea384493fce7aa","last_reissued_at":"2026-05-18T01:47:58.050721Z","signature_status":"signed_v1","first_computed_at":"2026-05-18T01:47:58.050721Z","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54"},"source_kind":"arxiv","source_id":"1308.5822","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":"2026-05-18T01:47:58Z","supersedes":[],"prev_event":null,"signature":{"signature_status":"signed_v1","algorithm":"ed25519","key_id":"pith-v1-2026-05","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54","signature_b64":"PaDTlZUZRNOHEzU2YfMthI9+ZRpmsVgJU6y06AhYPFKkWAC30Td2XQNn7RLfu2PJxcawcxFL6COLZ9xjsEGyDA==","signed_message":"open_graph_event_sha256_bytes","signed_at":"2026-05-28T19:08:02.810486Z"},"content_sha256":"31f16414b47bcece4d068f69991eaf8d3ef4b792c50abda4233036e3ce631567","schema_version":"1.0","event_id":"sha256:31f16414b47bcece4d068f69991eaf8d3ef4b792c50abda4233036e3ce631567"},{"event_type":"graph_snapshot","subject_pith_number":"pith:2013:JUZAPT4THMAOFVDGU4RLUOBBHQ","target":"graph","payload":{"graph_snapshot":{"paper":{"title":"Global survey of star clusters in the Milky Way II. The catalogue of basic parameters","license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","headline":"","cross_cats":[],"primary_cat":"astro-ph.GA","authors_text":"A.E. Piskunov, E. Schilbach, N.V. Kharchenko, R.-D. Scholz, S. R\\\"oser","submitted_at":"2013-08-27T11:06:03Z","abstract_excerpt":"Although they are the main constituents of the Galactic disk population, for half of the open clusters in the Milky Way reported in the literature nothing is known except the raw position and an approximate size. The main goal of this study is to determine a full set of uniform spatial, structural, kinematic, and astrophysical parameters for as many known open clusters as possible. On the basis of stellar data from PPMXL and 2MASS, we used a dedicated data-processing pipeline to determine kinematic and photometric membership probabilities for stars in a cluster region. For an input list of 378"},"claims":{"count":0,"items":[],"snapshot_sha256":"258153158e38e3291e3d48162225fcdb2d5a3ed65a07baac614ab91432fd4f57"},"source":{"id":"1308.5822","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":"2026-05-18T01:47:58Z","supersedes":[],"prev_event":null,"signature":{"signature_status":"signed_v1","algorithm":"ed25519","key_id":"pith-v1-2026-05","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54","signature_b64":"taRx9MgCjwnWyKtkyKn14mtw2qL6HdlycvesXeq8K5Q2c4M7Km+nmX6SQjupfcUH2RP7s4HY2uM2P8QxX1ziAg==","signed_message":"open_graph_event_sha256_bytes","signed_at":"2026-05-28T19:08:02.811136Z"},"content_sha256":"130a5d5d53eaa43dc86460fb469f9dd9dc0d4f32bf12103b72fd4dfe4615436c","schema_version":"1.0","event_id":"sha256:130a5d5d53eaa43dc86460fb469f9dd9dc0d4f32bf12103b72fd4dfe4615436c"}],"timestamp_proofs":[],"mirror_hints":[{"mirror_type":"https","name":"Pith Resolver","base_url":"https://pith.science","bundle_url":"https://pith.science/pith/JUZAPT4THMAOFVDGU4RLUOBBHQ/bundle.json","state_url":"https://pith.science/pith/JUZAPT4THMAOFVDGU4RLUOBBHQ/state.json","well_known_bundle_url":"https://pith.science/.well-known/pith/JUZAPT4THMAOFVDGU4RLUOBBHQ/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":"2026-05-28T19:08:02Z","links":{"resolver":"https://pith.science/pith/JUZAPT4THMAOFVDGU4RLUOBBHQ","bundle":"https://pith.science/pith/JUZAPT4THMAOFVDGU4RLUOBBHQ/bundle.json","state":"https://pith.science/pith/JUZAPT4THMAOFVDGU4RLUOBBHQ/state.json","well_known_bundle":"https://pith.science/.well-known/pith/JUZAPT4THMAOFVDGU4RLUOBBHQ/bundle.json"},"state":{"state_type":"pith_open_graph_state","state_version":"1.0","pith_number":"pith:2013:JUZAPT4THMAOFVDGU4RLUOBBHQ","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":"d668b01e2e7143aa388ee64ac74bef52ac98da648fc43ea910d3fdfa8c138245","cross_cats_sorted":[],"license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"astro-ph.GA","submitted_at":"2013-08-27T11:06:03Z","title_canon_sha256":"b8a9563ed81667b5be6e77087860709edaa7095ecde52a3228f5999120258198"},"schema_version":"1.0","source":{"id":"1308.5822","kind":"arxiv","version":1}},"source_aliases":[{"alias_kind":"arxiv","alias_value":"1308.5822","created_at":"2026-05-18T01:47:58Z"},{"alias_kind":"arxiv_version","alias_value":"1308.5822v1","created_at":"2026-05-18T01:47:58Z"},{"alias_kind":"doi","alias_value":"10.48550/arxiv.1308.5822","created_at":"2026-05-18T01:47:58Z"},{"alias_kind":"pith_short_12","alias_value":"JUZAPT4THMAO","created_at":"2026-05-18T12:27:49Z"},{"alias_kind":"pith_short_16","alias_value":"JUZAPT4THMAOFVDG","created_at":"2026-05-18T12:27:49Z"},{"alias_kind":"pith_short_8","alias_value":"JUZAPT4T","created_at":"2026-05-18T12:27:49Z"}],"graph_snapshots":[{"event_id":"sha256:130a5d5d53eaa43dc86460fb469f9dd9dc0d4f32bf12103b72fd4dfe4615436c","target":"graph","created_at":"2026-05-18T01:47:58Z","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":"Although they are the main constituents of the Galactic disk population, for half of the open clusters in the Milky Way reported in the literature nothing is known except the raw position and an approximate size. The main goal of this study is to determine a full set of uniform spatial, structural, kinematic, and astrophysical parameters for as many known open clusters as possible. On the basis of stellar data from PPMXL and 2MASS, we used a dedicated data-processing pipeline to determine kinematic and photometric membership probabilities for stars in a cluster region. For an input list of 378","authors_text":"A.E. Piskunov, E. Schilbach, N.V. Kharchenko, R.-D. Scholz, S. R\\\"oser","cross_cats":[],"headline":"","license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"astro-ph.GA","submitted_at":"2013-08-27T11:06:03Z","title":"Global survey of star clusters in the Milky Way II. The catalogue of basic parameters"},"references":{"count":0,"internal_anchors":0,"resolved_work":0,"sample":[],"snapshot_sha256":"258153158e38e3291e3d48162225fcdb2d5a3ed65a07baac614ab91432fd4f57"},"source":{"id":"1308.5822","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":"sha256:31f16414b47bcece4d068f69991eaf8d3ef4b792c50abda4233036e3ce631567","target":"record","created_at":"2026-05-18T01:47:58Z","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":"d668b01e2e7143aa388ee64ac74bef52ac98da648fc43ea910d3fdfa8c138245","cross_cats_sorted":[],"license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"astro-ph.GA","submitted_at":"2013-08-27T11:06:03Z","title_canon_sha256":"b8a9563ed81667b5be6e77087860709edaa7095ecde52a3228f5999120258198"},"schema_version":"1.0","source":{"id":"1308.5822","kind":"arxiv","version":1}},"canonical_sha256":"4d3207cf933b00e2d466a722ba38213c1275cb32c14c7ffac4ea384493fce7aa","receipt":{"algorithm":"ed25519","builder_version":"pith-number-builder-2026-05-17-v1","canonical_sha256":"4d3207cf933b00e2d466a722ba38213c1275cb32c14c7ffac4ea384493fce7aa","first_computed_at":"2026-05-18T01:47:58.050721Z","key_id":"pith-v1-2026-05","kind":"pith_receipt","last_reissued_at":"2026-05-18T01:47:58.050721Z","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54","receipt_version":"0.3","signature_b64":"sr6bkibK17WGFem4Hlm1MI8vD7NlRdt3iQO4jStYeytRpI5ZL6bOwWRlTwJdHS8w5rkX1lXPQEx1ra4ku3pNBQ==","signature_status":"signed_v1","signed_at":"2026-05-18T01:47:58.051474Z","signed_message":"canonical_sha256_bytes"},"source_id":"1308.5822","source_kind":"arxiv","source_version":1}}},"equivocations":[],"invalid_events":[],"applied_event_ids":["sha256:31f16414b47bcece4d068f69991eaf8d3ef4b792c50abda4233036e3ce631567","sha256:130a5d5d53eaa43dc86460fb469f9dd9dc0d4f32bf12103b72fd4dfe4615436c"],"state_sha256":"036c138c787380f1b59fa0ff39cfbea478c46680f746c27af48c79d8d5447eba"},"bundle_signature":{"signature_status":"signed_v1","algorithm":"ed25519","key_id":"pith-v1-2026-05","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54","signature_b64":"Cst3nEIDfQXiUIG409Xf6kA5Xg2RDZ2eEfWeZBG2ja2So1Hivqk40NdWf7DnPHrpkkfpYAZVrSnYdXl3nyDnDQ==","signed_message":"bundle_sha256_bytes","signed_at":"2026-05-28T19:08:02.814552Z","bundle_sha256":"b4d7ad66a29cbb6d8afa169f4b4b9cc47df09fd2fb8cfc84fb4fc84bac009669"}}