{"bundle_type":"pith_open_graph_bundle","bundle_version":"1.0","pith_number":"pith:2016:24APYGNYNBYWIOOZBR7Z22E3I7","short_pith_number":"pith:24APYGNY","canonical_record":{"source":{"id":"1612.05181","kind":"arxiv","version":1},"metadata":{"license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"astro-ph.GA","submitted_at":"2016-12-15T18:26:37Z","cross_cats_sorted":[],"title_canon_sha256":"f5f2c8adf812eb8870235ab66096558abaf29228ec7be7252a477823730f90e5","abstract_canon_sha256":"3799e3b7e979e980cfba5d74617ede7f812542961798cd644263249c0b50f548"},"schema_version":"1.0"},"canonical_sha256":"d700fc19b868716439d90c7f9d689b47e2051b8ce810b34776f91b3f4455ddef","source":{"kind":"arxiv","id":"1612.05181","version":1},"source_aliases":[{"alias_kind":"arxiv","alias_value":"1612.05181","created_at":"2026-05-18T00:54:53Z"},{"alias_kind":"arxiv_version","alias_value":"1612.05181v1","created_at":"2026-05-18T00:54:53Z"},{"alias_kind":"doi","alias_value":"10.48550/arxiv.1612.05181","created_at":"2026-05-18T00:54:53Z"},{"alias_kind":"pith_short_12","alias_value":"24APYGNYNBYW","created_at":"2026-05-18T12:29:52Z"},{"alias_kind":"pith_short_16","alias_value":"24APYGNYNBYWIOOZ","created_at":"2026-05-18T12:29:52Z"},{"alias_kind":"pith_short_8","alias_value":"24APYGNY","created_at":"2026-05-18T12:29:52Z"}],"events":[{"event_type":"record_created","subject_pith_number":"pith:2016:24APYGNYNBYWIOOZBR7Z22E3I7","target":"record","payload":{"canonical_record":{"source":{"id":"1612.05181","kind":"arxiv","version":1},"metadata":{"license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"astro-ph.GA","submitted_at":"2016-12-15T18:26:37Z","cross_cats_sorted":[],"title_canon_sha256":"f5f2c8adf812eb8870235ab66096558abaf29228ec7be7252a477823730f90e5","abstract_canon_sha256":"3799e3b7e979e980cfba5d74617ede7f812542961798cd644263249c0b50f548"},"schema_version":"1.0"},"canonical_sha256":"d700fc19b868716439d90c7f9d689b47e2051b8ce810b34776f91b3f4455ddef","receipt":{"kind":"pith_receipt","key_id":"pith-v1-2026-05","algorithm":"ed25519","signed_at":"2026-05-18T00:54:53.289262Z","signature_b64":"9vAXHShbOlYvcYFYakDPVv5U5kiyAdyVotZ5FX+r5hBoBL1jGJllSzkOFdGVoT5kjV0CrPxJr0wNQMQIW0a4Cg==","signed_message":"canonical_sha256_bytes","builder_version":"pith-number-builder-2026-05-17-v1","receipt_version":"0.3","canonical_sha256":"d700fc19b868716439d90c7f9d689b47e2051b8ce810b34776f91b3f4455ddef","last_reissued_at":"2026-05-18T00:54:53.288839Z","signature_status":"signed_v1","first_computed_at":"2026-05-18T00:54:53.288839Z","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54"},"source_kind":"arxiv","source_id":"1612.05181","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":"2026-05-18T00:54:53Z","supersedes":[],"prev_event":null,"signature":{"signature_status":"signed_v1","algorithm":"ed25519","key_id":"pith-v1-2026-05","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54","signature_b64":"485QCCjkeHRO5QUNjmJ4A1+b1GHYx01O/CuuaySKbXjs6BTWzWReMuaTtecP/xeyIWbsw2g4/7jsS0cQDoa9Bw==","signed_message":"open_graph_event_sha256_bytes","signed_at":"2026-05-29T16:13:41.940042Z"},"content_sha256":"b54136d5aea283935a45526949d7e33f7c49132fd5ca9823827f0ec46288dd60","schema_version":"1.0","event_id":"sha256:b54136d5aea283935a45526949d7e33f7c49132fd5ca9823827f0ec46288dd60"},{"event_type":"graph_snapshot","subject_pith_number":"pith:2016:24APYGNYNBYWIOOZBR7Z22E3I7","target":"graph","payload":{"graph_snapshot":{"paper":{"title":"The young open cluster NGC 7067 using Str\\\"omgren photometry","license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","headline":"","cross_cats":[],"primary_cat":"astro-ph.GA","authors_text":"A. Marco, C. Gonz\\'alez-Fern\\'andez, C. Jordi, E. J. Alfaro, F. Figueras, F. Vilardell, I. Negueruela, J. ALonso-Santiago, J. Molg\\'o, L. Casamiquela, M. Garcia, M. L\\'opez-Corredoira, M. Mongui\\'o, M. Romero-G\\'omez, M. T. Costado, T. Antoja","submitted_at":"2016-12-15T18:26:37Z","abstract_excerpt":"NGC 7067 is a young open cluster located in the direction between the first and the second Galactic quadrants and close to the Perseus spiral arm. This makes it useful for studies of the nature of the Milky Way spiral arms. Stromgren photometry taken with the Wide Field Camera at the Isaac Newton Telescope allowed us to compute individual physical parameters for the observed stars and hence to derive cluster's physical parameters. Spectra from the 1.93-m telescope at the Observatoire de Haute-Provence helped to check and improve the results. We obtained photometry for 1233 stars, individual ph"},"claims":{"count":0,"items":[],"snapshot_sha256":"258153158e38e3291e3d48162225fcdb2d5a3ed65a07baac614ab91432fd4f57"},"source":{"id":"1612.05181","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":"2026-05-18T00:54:53Z","supersedes":[],"prev_event":null,"signature":{"signature_status":"signed_v1","algorithm":"ed25519","key_id":"pith-v1-2026-05","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54","signature_b64":"iJpJ66EEw8KW7dWeo7UUJF17t2DEtHOZQFdawozpxYlZx1lNWBUw4MJX1DYq39Mz20EWiLEAthrBiB4VbxRFCA==","signed_message":"open_graph_event_sha256_bytes","signed_at":"2026-05-29T16:13:41.940709Z"},"content_sha256":"4421bcd325e4c64cb38afdea3370825479aa9b441f195a41cb79614152ed7bad","schema_version":"1.0","event_id":"sha256:4421bcd325e4c64cb38afdea3370825479aa9b441f195a41cb79614152ed7bad"}],"timestamp_proofs":[],"mirror_hints":[{"mirror_type":"https","name":"Pith Resolver","base_url":"https://pith.science","bundle_url":"https://pith.science/pith/24APYGNYNBYWIOOZBR7Z22E3I7/bundle.json","state_url":"https://pith.science/pith/24APYGNYNBYWIOOZBR7Z22E3I7/state.json","well_known_bundle_url":"https://pith.science/.well-known/pith/24APYGNYNBYWIOOZBR7Z22E3I7/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":"2026-05-29T16:13:41Z","links":{"resolver":"https://pith.science/pith/24APYGNYNBYWIOOZBR7Z22E3I7","bundle":"https://pith.science/pith/24APYGNYNBYWIOOZBR7Z22E3I7/bundle.json","state":"https://pith.science/pith/24APYGNYNBYWIOOZBR7Z22E3I7/state.json","well_known_bundle":"https://pith.science/.well-known/pith/24APYGNYNBYWIOOZBR7Z22E3I7/bundle.json"},"state":{"state_type":"pith_open_graph_state","state_version":"1.0","pith_number":"pith:2016:24APYGNYNBYWIOOZBR7Z22E3I7","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":"3799e3b7e979e980cfba5d74617ede7f812542961798cd644263249c0b50f548","cross_cats_sorted":[],"license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"astro-ph.GA","submitted_at":"2016-12-15T18:26:37Z","title_canon_sha256":"f5f2c8adf812eb8870235ab66096558abaf29228ec7be7252a477823730f90e5"},"schema_version":"1.0","source":{"id":"1612.05181","kind":"arxiv","version":1}},"source_aliases":[{"alias_kind":"arxiv","alias_value":"1612.05181","created_at":"2026-05-18T00:54:53Z"},{"alias_kind":"arxiv_version","alias_value":"1612.05181v1","created_at":"2026-05-18T00:54:53Z"},{"alias_kind":"doi","alias_value":"10.48550/arxiv.1612.05181","created_at":"2026-05-18T00:54:53Z"},{"alias_kind":"pith_short_12","alias_value":"24APYGNYNBYW","created_at":"2026-05-18T12:29:52Z"},{"alias_kind":"pith_short_16","alias_value":"24APYGNYNBYWIOOZ","created_at":"2026-05-18T12:29:52Z"},{"alias_kind":"pith_short_8","alias_value":"24APYGNY","created_at":"2026-05-18T12:29:52Z"}],"graph_snapshots":[{"event_id":"sha256:4421bcd325e4c64cb38afdea3370825479aa9b441f195a41cb79614152ed7bad","target":"graph","created_at":"2026-05-18T00:54:53Z","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":"NGC 7067 is a young open cluster located in the direction between the first and the second Galactic quadrants and close to the Perseus spiral arm. This makes it useful for studies of the nature of the Milky Way spiral arms. Stromgren photometry taken with the Wide Field Camera at the Isaac Newton Telescope allowed us to compute individual physical parameters for the observed stars and hence to derive cluster's physical parameters. Spectra from the 1.93-m telescope at the Observatoire de Haute-Provence helped to check and improve the results. We obtained photometry for 1233 stars, individual ph","authors_text":"A. Marco, C. Gonz\\'alez-Fern\\'andez, C. Jordi, E. J. Alfaro, F. Figueras, F. Vilardell, I. Negueruela, J. ALonso-Santiago, J. Molg\\'o, L. Casamiquela, M. Garcia, M. L\\'opez-Corredoira, M. Mongui\\'o, M. Romero-G\\'omez, M. T. Costado, T. Antoja","cross_cats":[],"headline":"","license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"astro-ph.GA","submitted_at":"2016-12-15T18:26:37Z","title":"The young open cluster NGC 7067 using Str\\\"omgren photometry"},"references":{"count":0,"internal_anchors":0,"resolved_work":0,"sample":[],"snapshot_sha256":"258153158e38e3291e3d48162225fcdb2d5a3ed65a07baac614ab91432fd4f57"},"source":{"id":"1612.05181","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:b54136d5aea283935a45526949d7e33f7c49132fd5ca9823827f0ec46288dd60","target":"record","created_at":"2026-05-18T00:54:53Z","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":"3799e3b7e979e980cfba5d74617ede7f812542961798cd644263249c0b50f548","cross_cats_sorted":[],"license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"astro-ph.GA","submitted_at":"2016-12-15T18:26:37Z","title_canon_sha256":"f5f2c8adf812eb8870235ab66096558abaf29228ec7be7252a477823730f90e5"},"schema_version":"1.0","source":{"id":"1612.05181","kind":"arxiv","version":1}},"canonical_sha256":"d700fc19b868716439d90c7f9d689b47e2051b8ce810b34776f91b3f4455ddef","receipt":{"algorithm":"ed25519","builder_version":"pith-number-builder-2026-05-17-v1","canonical_sha256":"d700fc19b868716439d90c7f9d689b47e2051b8ce810b34776f91b3f4455ddef","first_computed_at":"2026-05-18T00:54:53.288839Z","key_id":"pith-v1-2026-05","kind":"pith_receipt","last_reissued_at":"2026-05-18T00:54:53.288839Z","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54","receipt_version":"0.3","signature_b64":"9vAXHShbOlYvcYFYakDPVv5U5kiyAdyVotZ5FX+r5hBoBL1jGJllSzkOFdGVoT5kjV0CrPxJr0wNQMQIW0a4Cg==","signature_status":"signed_v1","signed_at":"2026-05-18T00:54:53.289262Z","signed_message":"canonical_sha256_bytes"},"source_id":"1612.05181","source_kind":"arxiv","source_version":1}}},"equivocations":[],"invalid_events":[],"applied_event_ids":["sha256:b54136d5aea283935a45526949d7e33f7c49132fd5ca9823827f0ec46288dd60","sha256:4421bcd325e4c64cb38afdea3370825479aa9b441f195a41cb79614152ed7bad"],"state_sha256":"983ed8cb0d23efe592f7d3c8acde6d4dd99bf0625655c3ae85394ffb68af513f"},"bundle_signature":{"signature_status":"signed_v1","algorithm":"ed25519","key_id":"pith-v1-2026-05","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54","signature_b64":"13ZCBP/wbQHyQ8fHOOXvSE8oNDQsSNxjY2vGMaD7DEeWTZqcn++b/fAnp4fddnsoMKMoIORPEs6aqNDzYl58Bw==","signed_message":"bundle_sha256_bytes","signed_at":"2026-05-29T16:13:41.944212Z","bundle_sha256":"f4e88b066da74d9a41f10cf986347e27963da9b2c1204cd3a6721ce72d2e8444"}}