{"bundle_type":"pith_open_graph_bundle","bundle_version":"1.0","pith_number":"pith:2016:FV26BS4F7YWXDELUTRW55OUKRT","short_pith_number":"pith:FV26BS4F","canonical_record":{"source":{"id":"1601.01282","kind":"arxiv","version":1},"metadata":{"license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"astro-ph.GA","submitted_at":"2016-01-06T19:25:49Z","cross_cats_sorted":[],"title_canon_sha256":"8435cc43228093f7c34ce2733f6f035a7fbd9c50c8438c2fdd9c103eaa06530f","abstract_canon_sha256":"d489ba6de989d4726639246e60e386e825fa5f1b7a20f14a7676d08b8d34a34c"},"schema_version":"1.0"},"canonical_sha256":"2d75e0cb85fe2d7191749c6ddeba8a8cd23dd02b4df1db42a6ff664cf1c26886","source":{"kind":"arxiv","id":"1601.01282","version":1},"source_aliases":[{"alias_kind":"arxiv","alias_value":"1601.01282","created_at":"2026-05-18T01:21:25Z"},{"alias_kind":"arxiv_version","alias_value":"1601.01282v1","created_at":"2026-05-18T01:21:25Z"},{"alias_kind":"doi","alias_value":"10.48550/arxiv.1601.01282","created_at":"2026-05-18T01:21:25Z"},{"alias_kind":"pith_short_12","alias_value":"FV26BS4F7YWX","created_at":"2026-05-18T12:30:15Z"},{"alias_kind":"pith_short_16","alias_value":"FV26BS4F7YWXDELU","created_at":"2026-05-18T12:30:15Z"},{"alias_kind":"pith_short_8","alias_value":"FV26BS4F","created_at":"2026-05-18T12:30:15Z"}],"events":[{"event_type":"record_created","subject_pith_number":"pith:2016:FV26BS4F7YWXDELUTRW55OUKRT","target":"record","payload":{"canonical_record":{"source":{"id":"1601.01282","kind":"arxiv","version":1},"metadata":{"license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"astro-ph.GA","submitted_at":"2016-01-06T19:25:49Z","cross_cats_sorted":[],"title_canon_sha256":"8435cc43228093f7c34ce2733f6f035a7fbd9c50c8438c2fdd9c103eaa06530f","abstract_canon_sha256":"d489ba6de989d4726639246e60e386e825fa5f1b7a20f14a7676d08b8d34a34c"},"schema_version":"1.0"},"canonical_sha256":"2d75e0cb85fe2d7191749c6ddeba8a8cd23dd02b4df1db42a6ff664cf1c26886","receipt":{"kind":"pith_receipt","key_id":"pith-v1-2026-05","algorithm":"ed25519","signed_at":"2026-05-18T01:21:25.471412Z","signature_b64":"c2nyPQ5CXGlWIesBiVmjhwh7QJo8Cr1rFzW9BWca9DMT2Ezx4y6ehDPZtX63aPJoGVxzU3Y6ueYdNs2r9daXAQ==","signed_message":"canonical_sha256_bytes","builder_version":"pith-number-builder-2026-05-17-v1","receipt_version":"0.3","canonical_sha256":"2d75e0cb85fe2d7191749c6ddeba8a8cd23dd02b4df1db42a6ff664cf1c26886","last_reissued_at":"2026-05-18T01:21:25.470902Z","signature_status":"signed_v1","first_computed_at":"2026-05-18T01:21:25.470902Z","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54"},"source_kind":"arxiv","source_id":"1601.01282","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":"2026-05-18T01:21:25Z","supersedes":[],"prev_event":null,"signature":{"signature_status":"signed_v1","algorithm":"ed25519","key_id":"pith-v1-2026-05","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54","signature_b64":"9M7aqS4FZAjTnVffpu/SX6De/JUC09d/PgJs58llk/uvthqKNChwKy4Qh5eqg77dCjFXU9gvPlRIpS7MewJUAg==","signed_message":"open_graph_event_sha256_bytes","signed_at":"2026-05-26T11:47:56.043935Z"},"content_sha256":"d51bcfd0239ae4fa4f154b9429322dbda0d21f5b8595fe0876a75de2f50d7a74","schema_version":"1.0","event_id":"sha256:d51bcfd0239ae4fa4f154b9429322dbda0d21f5b8595fe0876a75de2f50d7a74"},{"event_type":"graph_snapshot","subject_pith_number":"pith:2016:FV26BS4F7YWXDELUTRW55OUKRT","target":"graph","payload":{"graph_snapshot":{"paper":{"title":"Evidence of the Galactic outer ring R1R2' from young open clusters and OB-associations","license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","headline":"","cross_cats":[],"primary_cat":"astro-ph.GA","authors_text":"A. K. Dambis, A. M. Melnik, E. V. Glushkova, P. Rautiainen","submitted_at":"2016-01-06T19:25:49Z","abstract_excerpt":"The distribution of young open clusters in the Galactic plane within 3 kpc from the Sun suggests the existence of the outer ring R1R2' in the Galaxy. The optimum value of the solar position angle with respect to the major axis of the bar, theta_b, providing the best agreement between the distribution of open clusters and model particles is theta_b=35 +/- 10 degrees. The kinematical features obtained for young open clusters and OB-associations with negative Galactocentric radial velocity VR indicate the solar location near the descending segment of the outer ring R2."},"claims":{"count":0,"items":[],"snapshot_sha256":"258153158e38e3291e3d48162225fcdb2d5a3ed65a07baac614ab91432fd4f57"},"source":{"id":"1601.01282","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":"2026-05-18T01:21:25Z","supersedes":[],"prev_event":null,"signature":{"signature_status":"signed_v1","algorithm":"ed25519","key_id":"pith-v1-2026-05","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54","signature_b64":"hOfhCZSLLtYVfDq3P4KfKcKCKOCpVfwp2XAQYZR2O5EHh3TUXmGdi3Uv5ra26wNAUtNp15Yve5/vQmBLVq9uCQ==","signed_message":"open_graph_event_sha256_bytes","signed_at":"2026-05-26T11:47:56.044680Z"},"content_sha256":"38a28c3396091f5eeee2e169e1a280e3db3b13583afea508f9cdf912e3266086","schema_version":"1.0","event_id":"sha256:38a28c3396091f5eeee2e169e1a280e3db3b13583afea508f9cdf912e3266086"}],"timestamp_proofs":[],"mirror_hints":[{"mirror_type":"https","name":"Pith Resolver","base_url":"https://pith.science","bundle_url":"https://pith.science/pith/FV26BS4F7YWXDELUTRW55OUKRT/bundle.json","state_url":"https://pith.science/pith/FV26BS4F7YWXDELUTRW55OUKRT/state.json","well_known_bundle_url":"https://pith.science/.well-known/pith/FV26BS4F7YWXDELUTRW55OUKRT/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":"2026-05-26T11:47:56Z","links":{"resolver":"https://pith.science/pith/FV26BS4F7YWXDELUTRW55OUKRT","bundle":"https://pith.science/pith/FV26BS4F7YWXDELUTRW55OUKRT/bundle.json","state":"https://pith.science/pith/FV26BS4F7YWXDELUTRW55OUKRT/state.json","well_known_bundle":"https://pith.science/.well-known/pith/FV26BS4F7YWXDELUTRW55OUKRT/bundle.json"},"state":{"state_type":"pith_open_graph_state","state_version":"1.0","pith_number":"pith:2016:FV26BS4F7YWXDELUTRW55OUKRT","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":"d489ba6de989d4726639246e60e386e825fa5f1b7a20f14a7676d08b8d34a34c","cross_cats_sorted":[],"license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"astro-ph.GA","submitted_at":"2016-01-06T19:25:49Z","title_canon_sha256":"8435cc43228093f7c34ce2733f6f035a7fbd9c50c8438c2fdd9c103eaa06530f"},"schema_version":"1.0","source":{"id":"1601.01282","kind":"arxiv","version":1}},"source_aliases":[{"alias_kind":"arxiv","alias_value":"1601.01282","created_at":"2026-05-18T01:21:25Z"},{"alias_kind":"arxiv_version","alias_value":"1601.01282v1","created_at":"2026-05-18T01:21:25Z"},{"alias_kind":"doi","alias_value":"10.48550/arxiv.1601.01282","created_at":"2026-05-18T01:21:25Z"},{"alias_kind":"pith_short_12","alias_value":"FV26BS4F7YWX","created_at":"2026-05-18T12:30:15Z"},{"alias_kind":"pith_short_16","alias_value":"FV26BS4F7YWXDELU","created_at":"2026-05-18T12:30:15Z"},{"alias_kind":"pith_short_8","alias_value":"FV26BS4F","created_at":"2026-05-18T12:30:15Z"}],"graph_snapshots":[{"event_id":"sha256:38a28c3396091f5eeee2e169e1a280e3db3b13583afea508f9cdf912e3266086","target":"graph","created_at":"2026-05-18T01:21:25Z","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 distribution of young open clusters in the Galactic plane within 3 kpc from the Sun suggests the existence of the outer ring R1R2' in the Galaxy. The optimum value of the solar position angle with respect to the major axis of the bar, theta_b, providing the best agreement between the distribution of open clusters and model particles is theta_b=35 +/- 10 degrees. The kinematical features obtained for young open clusters and OB-associations with negative Galactocentric radial velocity VR indicate the solar location near the descending segment of the outer ring R2.","authors_text":"A. K. Dambis, A. M. Melnik, E. V. Glushkova, P. Rautiainen","cross_cats":[],"headline":"","license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"astro-ph.GA","submitted_at":"2016-01-06T19:25:49Z","title":"Evidence of the Galactic outer ring R1R2' from young open clusters and OB-associations"},"references":{"count":0,"internal_anchors":0,"resolved_work":0,"sample":[],"snapshot_sha256":"258153158e38e3291e3d48162225fcdb2d5a3ed65a07baac614ab91432fd4f57"},"source":{"id":"1601.01282","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:d51bcfd0239ae4fa4f154b9429322dbda0d21f5b8595fe0876a75de2f50d7a74","target":"record","created_at":"2026-05-18T01:21:25Z","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":"d489ba6de989d4726639246e60e386e825fa5f1b7a20f14a7676d08b8d34a34c","cross_cats_sorted":[],"license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"astro-ph.GA","submitted_at":"2016-01-06T19:25:49Z","title_canon_sha256":"8435cc43228093f7c34ce2733f6f035a7fbd9c50c8438c2fdd9c103eaa06530f"},"schema_version":"1.0","source":{"id":"1601.01282","kind":"arxiv","version":1}},"canonical_sha256":"2d75e0cb85fe2d7191749c6ddeba8a8cd23dd02b4df1db42a6ff664cf1c26886","receipt":{"algorithm":"ed25519","builder_version":"pith-number-builder-2026-05-17-v1","canonical_sha256":"2d75e0cb85fe2d7191749c6ddeba8a8cd23dd02b4df1db42a6ff664cf1c26886","first_computed_at":"2026-05-18T01:21:25.470902Z","key_id":"pith-v1-2026-05","kind":"pith_receipt","last_reissued_at":"2026-05-18T01:21:25.470902Z","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54","receipt_version":"0.3","signature_b64":"c2nyPQ5CXGlWIesBiVmjhwh7QJo8Cr1rFzW9BWca9DMT2Ezx4y6ehDPZtX63aPJoGVxzU3Y6ueYdNs2r9daXAQ==","signature_status":"signed_v1","signed_at":"2026-05-18T01:21:25.471412Z","signed_message":"canonical_sha256_bytes"},"source_id":"1601.01282","source_kind":"arxiv","source_version":1}}},"equivocations":[],"invalid_events":[],"applied_event_ids":["sha256:d51bcfd0239ae4fa4f154b9429322dbda0d21f5b8595fe0876a75de2f50d7a74","sha256:38a28c3396091f5eeee2e169e1a280e3db3b13583afea508f9cdf912e3266086"],"state_sha256":"df6e24ade177915127bbee649728ac8dd211049fafd00a200ac2306e678b3362"},"bundle_signature":{"signature_status":"signed_v1","algorithm":"ed25519","key_id":"pith-v1-2026-05","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54","signature_b64":"ccxU0RoA5FoJw+ELM/bLBunxT4owMtUJUZwc42agW3MFCq8pvhEjQT/bZ9AIM1NfllJWSVgogSNp+TSRGMhlBQ==","signed_message":"bundle_sha256_bytes","signed_at":"2026-05-26T11:47:56.048602Z","bundle_sha256":"2528144e141e2c3a5592f3af42caf0b92ea4b2e39e3e1728e8c6e532d527f295"}}