{"bundle_type":"pith_open_graph_bundle","bundle_version":"1.0","pith_number":"pith:2016:WF4Z3C3M2BDPTV3JUB4E2YG7Y2","short_pith_number":"pith:WF4Z3C3M","canonical_record":{"source":{"id":"1606.08608","kind":"arxiv","version":1},"metadata":{"license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"astro-ph.GA","submitted_at":"2016-06-28T08:34:39Z","cross_cats_sorted":["astro-ph.SR"],"title_canon_sha256":"fa39292f1d2638c8443323f54a45dc21046d9175e04cf49a921c0fe5e88012c0","abstract_canon_sha256":"34b6c6d1445ea0475907c163ec728906bfc1f1dcf47ad588fed450af84889a75"},"schema_version":"1.0"},"canonical_sha256":"b1799d8b6cd046f9d769a0784d60dfc68a91b7e7d3033c709ba6f2a9fa1236bb","source":{"kind":"arxiv","id":"1606.08608","version":1},"source_aliases":[{"alias_kind":"arxiv","alias_value":"1606.08608","created_at":"2026-05-18T01:03:18Z"},{"alias_kind":"arxiv_version","alias_value":"1606.08608v1","created_at":"2026-05-18T01:03:18Z"},{"alias_kind":"doi","alias_value":"10.48550/arxiv.1606.08608","created_at":"2026-05-18T01:03:18Z"},{"alias_kind":"pith_short_12","alias_value":"WF4Z3C3M2BDP","created_at":"2026-05-18T12:30:48Z"},{"alias_kind":"pith_short_16","alias_value":"WF4Z3C3M2BDPTV3J","created_at":"2026-05-18T12:30:48Z"},{"alias_kind":"pith_short_8","alias_value":"WF4Z3C3M","created_at":"2026-05-18T12:30:48Z"}],"events":[{"event_type":"record_created","subject_pith_number":"pith:2016:WF4Z3C3M2BDPTV3JUB4E2YG7Y2","target":"record","payload":{"canonical_record":{"source":{"id":"1606.08608","kind":"arxiv","version":1},"metadata":{"license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"astro-ph.GA","submitted_at":"2016-06-28T08:34:39Z","cross_cats_sorted":["astro-ph.SR"],"title_canon_sha256":"fa39292f1d2638c8443323f54a45dc21046d9175e04cf49a921c0fe5e88012c0","abstract_canon_sha256":"34b6c6d1445ea0475907c163ec728906bfc1f1dcf47ad588fed450af84889a75"},"schema_version":"1.0"},"canonical_sha256":"b1799d8b6cd046f9d769a0784d60dfc68a91b7e7d3033c709ba6f2a9fa1236bb","receipt":{"kind":"pith_receipt","key_id":"pith-v1-2026-05","algorithm":"ed25519","signed_at":"2026-05-18T01:03:18.341585Z","signature_b64":"VGv2RN9TQREDOf3TttJ4U0e0tza1RiuIfAwEG/eYZp1q7h2oNJkWUm2zEwyGfyjh8K4iUhbvN1CrQ6CE2VofCQ==","signed_message":"canonical_sha256_bytes","builder_version":"pith-number-builder-2026-05-17-v1","receipt_version":"0.3","canonical_sha256":"b1799d8b6cd046f9d769a0784d60dfc68a91b7e7d3033c709ba6f2a9fa1236bb","last_reissued_at":"2026-05-18T01:03:18.341073Z","signature_status":"signed_v1","first_computed_at":"2026-05-18T01:03:18.341073Z","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54"},"source_kind":"arxiv","source_id":"1606.08608","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":"2026-05-18T01:03:18Z","supersedes":[],"prev_event":null,"signature":{"signature_status":"signed_v1","algorithm":"ed25519","key_id":"pith-v1-2026-05","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54","signature_b64":"STcHYMqmzcIJZ6XpiWOV3rpDaOURfl7a9L4ksLU9UKSZbfuElSz2PQy6f/a9KkNsIqXXLmZm5CfQQ2N0QtULBQ==","signed_message":"open_graph_event_sha256_bytes","signed_at":"2026-06-11T23:13:49.442961Z"},"content_sha256":"c3581967e3de5a52e45538d71f624ba89b12919b81f7a394fc1c26163e9e7a9a","schema_version":"1.0","event_id":"sha256:c3581967e3de5a52e45538d71f624ba89b12919b81f7a394fc1c26163e9e7a9a"},{"event_type":"graph_snapshot","subject_pith_number":"pith:2016:WF4Z3C3M2BDPTV3JUB4E2YG7Y2","target":"graph","payload":{"graph_snapshot":{"paper":{"title":"CCD UBV Photometry and Kinematics of the Open Cluster NGC 225","license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","headline":"","cross_cats":["astro-ph.SR"],"primary_cat":"astro-ph.GA","authors_text":"E. Paunzen, S. Ak, S. Bilir, T. Ak, T. Guver, T. Yontan, V. Bakis, Z. Eker, Z. F. Bostanci","submitted_at":"2016-06-28T08:34:39Z","abstract_excerpt":"We present the results of CCD $UBV$ photometric and spectroscopic observations of the open cluster NGC 225. In order to determine the structural parameters of NGC 225, we calculated the stellar density profile in the cluster's field. We estimated the probabilities of the stars being physical members of the cluster using the existing astrometric data. The most likely members of the cluster were used in the determination of the astrophysical parameters of the cluster. We calculated the mean radial velocity of the cluster as $V_{r}=-8.3\\pm 5.0$ km s$^{-1}$ from the optical spectra of eight stars "},"claims":{"count":0,"items":[],"snapshot_sha256":"258153158e38e3291e3d48162225fcdb2d5a3ed65a07baac614ab91432fd4f57"},"source":{"id":"1606.08608","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":"2026-05-18T01:03:18Z","supersedes":[],"prev_event":null,"signature":{"signature_status":"signed_v1","algorithm":"ed25519","key_id":"pith-v1-2026-05","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54","signature_b64":"W4fUpXBENdLMvr40nKOjHu8Df/NK73RA8ftFk6t0SW/luT1heUODK3FSuI7p85t4FA1aSIPkNTK6rGSY/ix6Dw==","signed_message":"open_graph_event_sha256_bytes","signed_at":"2026-06-11T23:13:49.443987Z"},"content_sha256":"4f48b2133ec86c50d2ff9dfffc5e7f2f46d87fe5fc68006ad6d3608b5723d2df","schema_version":"1.0","event_id":"sha256:4f48b2133ec86c50d2ff9dfffc5e7f2f46d87fe5fc68006ad6d3608b5723d2df"}],"timestamp_proofs":[],"mirror_hints":[{"mirror_type":"https","name":"Pith Resolver","base_url":"https://pith.science","bundle_url":"https://pith.science/pith/WF4Z3C3M2BDPTV3JUB4E2YG7Y2/bundle.json","state_url":"https://pith.science/pith/WF4Z3C3M2BDPTV3JUB4E2YG7Y2/state.json","well_known_bundle_url":"https://pith.science/.well-known/pith/WF4Z3C3M2BDPTV3JUB4E2YG7Y2/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":"2026-06-11T23:13:49Z","links":{"resolver":"https://pith.science/pith/WF4Z3C3M2BDPTV3JUB4E2YG7Y2","bundle":"https://pith.science/pith/WF4Z3C3M2BDPTV3JUB4E2YG7Y2/bundle.json","state":"https://pith.science/pith/WF4Z3C3M2BDPTV3JUB4E2YG7Y2/state.json","well_known_bundle":"https://pith.science/.well-known/pith/WF4Z3C3M2BDPTV3JUB4E2YG7Y2/bundle.json"},"state":{"state_type":"pith_open_graph_state","state_version":"1.0","pith_number":"pith:2016:WF4Z3C3M2BDPTV3JUB4E2YG7Y2","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":"34b6c6d1445ea0475907c163ec728906bfc1f1dcf47ad588fed450af84889a75","cross_cats_sorted":["astro-ph.SR"],"license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"astro-ph.GA","submitted_at":"2016-06-28T08:34:39Z","title_canon_sha256":"fa39292f1d2638c8443323f54a45dc21046d9175e04cf49a921c0fe5e88012c0"},"schema_version":"1.0","source":{"id":"1606.08608","kind":"arxiv","version":1}},"source_aliases":[{"alias_kind":"arxiv","alias_value":"1606.08608","created_at":"2026-05-18T01:03:18Z"},{"alias_kind":"arxiv_version","alias_value":"1606.08608v1","created_at":"2026-05-18T01:03:18Z"},{"alias_kind":"doi","alias_value":"10.48550/arxiv.1606.08608","created_at":"2026-05-18T01:03:18Z"},{"alias_kind":"pith_short_12","alias_value":"WF4Z3C3M2BDP","created_at":"2026-05-18T12:30:48Z"},{"alias_kind":"pith_short_16","alias_value":"WF4Z3C3M2BDPTV3J","created_at":"2026-05-18T12:30:48Z"},{"alias_kind":"pith_short_8","alias_value":"WF4Z3C3M","created_at":"2026-05-18T12:30:48Z"}],"graph_snapshots":[{"event_id":"sha256:4f48b2133ec86c50d2ff9dfffc5e7f2f46d87fe5fc68006ad6d3608b5723d2df","target":"graph","created_at":"2026-05-18T01:03:18Z","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 results of CCD $UBV$ photometric and spectroscopic observations of the open cluster NGC 225. In order to determine the structural parameters of NGC 225, we calculated the stellar density profile in the cluster's field. We estimated the probabilities of the stars being physical members of the cluster using the existing astrometric data. The most likely members of the cluster were used in the determination of the astrophysical parameters of the cluster. We calculated the mean radial velocity of the cluster as $V_{r}=-8.3\\pm 5.0$ km s$^{-1}$ from the optical spectra of eight stars ","authors_text":"E. Paunzen, S. Ak, S. Bilir, T. Ak, T. Guver, T. Yontan, V. Bakis, Z. Eker, Z. F. Bostanci","cross_cats":["astro-ph.SR"],"headline":"","license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"astro-ph.GA","submitted_at":"2016-06-28T08:34:39Z","title":"CCD UBV Photometry and Kinematics of the Open Cluster NGC 225"},"references":{"count":0,"internal_anchors":0,"resolved_work":0,"sample":[],"snapshot_sha256":"258153158e38e3291e3d48162225fcdb2d5a3ed65a07baac614ab91432fd4f57"},"source":{"id":"1606.08608","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:c3581967e3de5a52e45538d71f624ba89b12919b81f7a394fc1c26163e9e7a9a","target":"record","created_at":"2026-05-18T01:03:18Z","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":"34b6c6d1445ea0475907c163ec728906bfc1f1dcf47ad588fed450af84889a75","cross_cats_sorted":["astro-ph.SR"],"license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"astro-ph.GA","submitted_at":"2016-06-28T08:34:39Z","title_canon_sha256":"fa39292f1d2638c8443323f54a45dc21046d9175e04cf49a921c0fe5e88012c0"},"schema_version":"1.0","source":{"id":"1606.08608","kind":"arxiv","version":1}},"canonical_sha256":"b1799d8b6cd046f9d769a0784d60dfc68a91b7e7d3033c709ba6f2a9fa1236bb","receipt":{"algorithm":"ed25519","builder_version":"pith-number-builder-2026-05-17-v1","canonical_sha256":"b1799d8b6cd046f9d769a0784d60dfc68a91b7e7d3033c709ba6f2a9fa1236bb","first_computed_at":"2026-05-18T01:03:18.341073Z","key_id":"pith-v1-2026-05","kind":"pith_receipt","last_reissued_at":"2026-05-18T01:03:18.341073Z","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54","receipt_version":"0.3","signature_b64":"VGv2RN9TQREDOf3TttJ4U0e0tza1RiuIfAwEG/eYZp1q7h2oNJkWUm2zEwyGfyjh8K4iUhbvN1CrQ6CE2VofCQ==","signature_status":"signed_v1","signed_at":"2026-05-18T01:03:18.341585Z","signed_message":"canonical_sha256_bytes"},"source_id":"1606.08608","source_kind":"arxiv","source_version":1}}},"equivocations":[],"invalid_events":[],"applied_event_ids":["sha256:c3581967e3de5a52e45538d71f624ba89b12919b81f7a394fc1c26163e9e7a9a","sha256:4f48b2133ec86c50d2ff9dfffc5e7f2f46d87fe5fc68006ad6d3608b5723d2df"],"state_sha256":"3ada98d679787142481ad4d9f53a11c023b3b2acb4c9231b7bba2cdd71272ec5"},"bundle_signature":{"signature_status":"signed_v1","algorithm":"ed25519","key_id":"pith-v1-2026-05","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54","signature_b64":"y3y7Nzc4jIhHrqAeq3F42aqfQUSN4vw7ICS88qTMQuwX/sltMsP5ExLsfOW+zHayueTXA4A1gS19vGCR/017Cg==","signed_message":"bundle_sha256_bytes","signed_at":"2026-06-11T23:13:49.448124Z","bundle_sha256":"4fc5a7c1d93df67459a51e87d1f28add70ea1c04257486d562d7635502001f96"}}