{"bundle_type":"pith_open_graph_bundle","bundle_version":"1.0","pith_number":"pith:2021:AGMVFJO2KIEYITCCZTBN6V7ZFD","short_pith_number":"pith:AGMVFJO2","canonical_record":{"source":{"id":"2101.06487","kind":"arxiv","version":1},"metadata":{"license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"astro-ph.SR","submitted_at":"2021-01-16T17:38:53Z","cross_cats_sorted":[],"title_canon_sha256":"66d73f7326710b023b5d9d0a182d7db9cde93ddeeaf243e3c1a853d7fd333908","abstract_canon_sha256":"60ffc231cbf6a805cad327cc2d307f06976236a0234a69eb82a5acd5d0f0963b"},"schema_version":"1.0"},"canonical_sha256":"019952a5da5209844c42ccc2df57f928ccfa77ab3a4316f7f626125f0eaecd14","source":{"kind":"arxiv","id":"2101.06487","version":1},"source_aliases":[{"alias_kind":"arxiv","alias_value":"2101.06487","created_at":"2026-07-05T02:07:19Z"},{"alias_kind":"arxiv_version","alias_value":"2101.06487v1","created_at":"2026-07-05T02:07:19Z"},{"alias_kind":"doi","alias_value":"10.48550/arxiv.2101.06487","created_at":"2026-07-05T02:07:19Z"},{"alias_kind":"pith_short_12","alias_value":"AGMVFJO2KIEY","created_at":"2026-07-05T02:07:19Z"},{"alias_kind":"pith_short_16","alias_value":"AGMVFJO2KIEYITCC","created_at":"2026-07-05T02:07:19Z"},{"alias_kind":"pith_short_8","alias_value":"AGMVFJO2","created_at":"2026-07-05T02:07:19Z"}],"events":[{"event_type":"record_created","subject_pith_number":"pith:2021:AGMVFJO2KIEYITCCZTBN6V7ZFD","target":"record","payload":{"canonical_record":{"source":{"id":"2101.06487","kind":"arxiv","version":1},"metadata":{"license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"astro-ph.SR","submitted_at":"2021-01-16T17:38:53Z","cross_cats_sorted":[],"title_canon_sha256":"66d73f7326710b023b5d9d0a182d7db9cde93ddeeaf243e3c1a853d7fd333908","abstract_canon_sha256":"60ffc231cbf6a805cad327cc2d307f06976236a0234a69eb82a5acd5d0f0963b"},"schema_version":"1.0"},"canonical_sha256":"019952a5da5209844c42ccc2df57f928ccfa77ab3a4316f7f626125f0eaecd14","receipt":{"kind":"pith_receipt","key_id":"pith-v1-2026-05","algorithm":"ed25519","signed_at":"2026-07-05T02:07:19.095652Z","signature_b64":"RHw0u1HqbjfzlULz3QBK6b2SIieGDgIbCKqJMLXaQvIFPlJr7WQJY++PjJXZ+IiUdJQu6PjPWMdmB0VLfboqBQ==","signed_message":"canonical_sha256_bytes","builder_version":"pith-number-builder-2026-05-17-v1","receipt_version":"0.3","canonical_sha256":"019952a5da5209844c42ccc2df57f928ccfa77ab3a4316f7f626125f0eaecd14","last_reissued_at":"2026-07-05T02:07:19.095245Z","signature_status":"signed_v1","first_computed_at":"2026-07-05T02:07:19.095245Z","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54"},"source_kind":"arxiv","source_id":"2101.06487","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":"2026-07-05T02:07:19Z","supersedes":[],"prev_event":null,"signature":{"signature_status":"signed_v1","algorithm":"ed25519","key_id":"pith-v1-2026-05","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54","signature_b64":"9zZOjphsbFMmrq+93WOHIlDsLD7sNpKpy/on5OJBt5nv+MjJ4yVaI2EQiogP2pVfow3PZwnJ+8BJFzMsBZpEDQ==","signed_message":"open_graph_event_sha256_bytes","signed_at":"2026-07-27T14:59:53.930442Z"},"content_sha256":"1a6246115fa0c328642c5bc50e2025b63bb41053f3257b983551f8ed27d4f49b","schema_version":"1.0","event_id":"sha256:1a6246115fa0c328642c5bc50e2025b63bb41053f3257b983551f8ed27d4f49b"},{"event_type":"graph_snapshot","subject_pith_number":"pith:2021:AGMVFJO2KIEYITCCZTBN6V7ZFD","target":"graph","payload":{"graph_snapshot":{"paper":{"title":"Review of the classification and properties of 62 variable stars in Cygnus","license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","headline":"","cross_cats":[],"primary_cat":"astro-ph.SR","authors_text":"(2) INAF-Osservatorio Astrofisico di Torino, C. Benna (2), C. Zamariola (1), D. Gardiol (2), G. Pettiti (2) ((1) IIS Curie Vittorini, Grugliasco (TO), Italy, Italy), M. Bonasia (1), Pino Torinese (TO), P. La Rocca (1), P. Moreo (1)","submitted_at":"2021-01-16T17:38:53Z","abstract_excerpt":"This study aims to assess the properties and classification of 62 variable stars in Cygnus, little studied since their discovery and originally reported in the Information Bulletin on Variable Stars (IBVS) 1302. Using data from previous studies and several astronomical databases, we performed our analysis mainly utilizing a period analysis software and comparing the photometric characteristics of the variables in a Colour-Absolute Magnitude Diagram. For all stars, the variability is confirmed. We discovered new significant results for the period and/or type of 17 variables and highlighted inco"},"claims":{"count":0,"items":[],"snapshot_sha256":"258153158e38e3291e3d48162225fcdb2d5a3ed65a07baac614ab91432fd4f57"},"source":{"id":"2101.06487","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":""},"integrity":{"clean":true,"summary":{"advisory":0,"critical":0,"by_detector":{},"informational":0},"endpoint":"/pith/2101.06487/integrity.json","findings":[],"available":true,"detectors_run":[],"snapshot_sha256":"c28c3603d3b5d939e8dc4c7e95fa8dfce3d595e45f758748cecf8e644a296938"},"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":"2026-07-05T02:07:19Z","supersedes":[],"prev_event":null,"signature":{"signature_status":"signed_v1","algorithm":"ed25519","key_id":"pith-v1-2026-05","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54","signature_b64":"Jrp2SZ57nNCchJ+8y32vBgdZxnYH1XMEVcdCDm5eJd4PwswyOjTWjmKLh+buhwoNyJkoCibq0JAGEMc1wbqgBA==","signed_message":"open_graph_event_sha256_bytes","signed_at":"2026-07-27T14:59:53.930822Z"},"content_sha256":"a0a2d229591444bfa939ad4f8615975539718c6597d5131effdfd7de208e7e5c","schema_version":"1.0","event_id":"sha256:a0a2d229591444bfa939ad4f8615975539718c6597d5131effdfd7de208e7e5c"}],"timestamp_proofs":[],"mirror_hints":[{"mirror_type":"https","name":"Pith Resolver","base_url":"https://pith.science","bundle_url":"https://pith.science/pith/AGMVFJO2KIEYITCCZTBN6V7ZFD/bundle.json","state_url":"https://pith.science/pith/AGMVFJO2KIEYITCCZTBN6V7ZFD/state.json","well_known_bundle_url":"https://pith.science/.well-known/pith/AGMVFJO2KIEYITCCZTBN6V7ZFD/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":"2026-07-27T14:59:53Z","links":{"resolver":"https://pith.science/pith/AGMVFJO2KIEYITCCZTBN6V7ZFD","bundle":"https://pith.science/pith/AGMVFJO2KIEYITCCZTBN6V7ZFD/bundle.json","state":"https://pith.science/pith/AGMVFJO2KIEYITCCZTBN6V7ZFD/state.json","well_known_bundle":"https://pith.science/.well-known/pith/AGMVFJO2KIEYITCCZTBN6V7ZFD/bundle.json"},"state":{"state_type":"pith_open_graph_state","state_version":"1.0","pith_number":"pith:2021:AGMVFJO2KIEYITCCZTBN6V7ZFD","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":"60ffc231cbf6a805cad327cc2d307f06976236a0234a69eb82a5acd5d0f0963b","cross_cats_sorted":[],"license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"astro-ph.SR","submitted_at":"2021-01-16T17:38:53Z","title_canon_sha256":"66d73f7326710b023b5d9d0a182d7db9cde93ddeeaf243e3c1a853d7fd333908"},"schema_version":"1.0","source":{"id":"2101.06487","kind":"arxiv","version":1}},"source_aliases":[{"alias_kind":"arxiv","alias_value":"2101.06487","created_at":"2026-07-05T02:07:19Z"},{"alias_kind":"arxiv_version","alias_value":"2101.06487v1","created_at":"2026-07-05T02:07:19Z"},{"alias_kind":"doi","alias_value":"10.48550/arxiv.2101.06487","created_at":"2026-07-05T02:07:19Z"},{"alias_kind":"pith_short_12","alias_value":"AGMVFJO2KIEY","created_at":"2026-07-05T02:07:19Z"},{"alias_kind":"pith_short_16","alias_value":"AGMVFJO2KIEYITCC","created_at":"2026-07-05T02:07:19Z"},{"alias_kind":"pith_short_8","alias_value":"AGMVFJO2","created_at":"2026-07-05T02:07:19Z"}],"graph_snapshots":[{"event_id":"sha256:a0a2d229591444bfa939ad4f8615975539718c6597d5131effdfd7de208e7e5c","target":"graph","created_at":"2026-07-05T02:07:19Z","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"},"integrity":{"available":true,"clean":true,"detectors_run":[],"endpoint":"/pith/2101.06487/integrity.json","findings":[],"snapshot_sha256":"c28c3603d3b5d939e8dc4c7e95fa8dfce3d595e45f758748cecf8e644a296938","summary":{"advisory":0,"by_detector":{},"critical":0,"informational":0}},"paper":{"abstract_excerpt":"This study aims to assess the properties and classification of 62 variable stars in Cygnus, little studied since their discovery and originally reported in the Information Bulletin on Variable Stars (IBVS) 1302. Using data from previous studies and several astronomical databases, we performed our analysis mainly utilizing a period analysis software and comparing the photometric characteristics of the variables in a Colour-Absolute Magnitude Diagram. For all stars, the variability is confirmed. We discovered new significant results for the period and/or type of 17 variables and highlighted inco","authors_text":"(2) INAF-Osservatorio Astrofisico di Torino, C. Benna (2), C. Zamariola (1), D. Gardiol (2), G. Pettiti (2) ((1) IIS Curie Vittorini, Grugliasco (TO), Italy, Italy), M. Bonasia (1), Pino Torinese (TO), P. La Rocca (1), P. Moreo (1)","cross_cats":[],"headline":"","license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"astro-ph.SR","submitted_at":"2021-01-16T17:38:53Z","title":"Review of the classification and properties of 62 variable stars in Cygnus"},"references":{"count":0,"internal_anchors":0,"resolved_work":0,"sample":[],"snapshot_sha256":"258153158e38e3291e3d48162225fcdb2d5a3ed65a07baac614ab91432fd4f57"},"source":{"id":"2101.06487","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":"sha256:1a6246115fa0c328642c5bc50e2025b63bb41053f3257b983551f8ed27d4f49b","target":"record","created_at":"2026-07-05T02:07:19Z","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":"60ffc231cbf6a805cad327cc2d307f06976236a0234a69eb82a5acd5d0f0963b","cross_cats_sorted":[],"license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"astro-ph.SR","submitted_at":"2021-01-16T17:38:53Z","title_canon_sha256":"66d73f7326710b023b5d9d0a182d7db9cde93ddeeaf243e3c1a853d7fd333908"},"schema_version":"1.0","source":{"id":"2101.06487","kind":"arxiv","version":1}},"canonical_sha256":"019952a5da5209844c42ccc2df57f928ccfa77ab3a4316f7f626125f0eaecd14","receipt":{"algorithm":"ed25519","builder_version":"pith-number-builder-2026-05-17-v1","canonical_sha256":"019952a5da5209844c42ccc2df57f928ccfa77ab3a4316f7f626125f0eaecd14","first_computed_at":"2026-07-05T02:07:19.095245Z","key_id":"pith-v1-2026-05","kind":"pith_receipt","last_reissued_at":"2026-07-05T02:07:19.095245Z","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54","receipt_version":"0.3","signature_b64":"RHw0u1HqbjfzlULz3QBK6b2SIieGDgIbCKqJMLXaQvIFPlJr7WQJY++PjJXZ+IiUdJQu6PjPWMdmB0VLfboqBQ==","signature_status":"signed_v1","signed_at":"2026-07-05T02:07:19.095652Z","signed_message":"canonical_sha256_bytes"},"source_id":"2101.06487","source_kind":"arxiv","source_version":1}}},"equivocations":[],"invalid_events":[],"applied_event_ids":["sha256:1a6246115fa0c328642c5bc50e2025b63bb41053f3257b983551f8ed27d4f49b","sha256:a0a2d229591444bfa939ad4f8615975539718c6597d5131effdfd7de208e7e5c"],"state_sha256":"905d5ac728c8a983dfc54fc40c679398f50e9f26f3f0ccce4e5ddca03ddbdba6"},"bundle_signature":{"signature_status":"signed_v1","algorithm":"ed25519","key_id":"pith-v1-2026-05","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54","signature_b64":"jjr+VHWP9EXwIb4XvFBGUYAPLDhby/O+KagUyy3i8qf4bjyw3ZQtqvSMG+he1x5jNW7qN2mpbeJMcwI54wTeCg==","signed_message":"bundle_sha256_bytes","signed_at":"2026-07-27T14:59:53.933213Z","bundle_sha256":"25c7d46c873633692488cbd022f4aa4a7636ff9a50969d04a934757e2be665ad"}}