{"bundle_type":"pith_open_graph_bundle","bundle_version":"1.0","pith_number":"pith:2022:AAGSI64SPAQZLBJOD5XMA4CLGL","short_pith_number":"pith:AAGSI64S","canonical_record":{"source":{"id":"2203.06785","kind":"arxiv","version":1},"metadata":{"license":"http://creativecommons.org/licenses/by-nc-sa/4.0/","primary_cat":"astro-ph.SR","submitted_at":"2022-03-13T23:40:21Z","cross_cats_sorted":[],"title_canon_sha256":"b23434b3c9077f7ccaecbac1ee222b1246b76884eada9f13a82abfb5f969d320","abstract_canon_sha256":"eeefab5d83caf5915f819b69a57ad8e93b35ec673bc847a0b83aca5394fd1ebf"},"schema_version":"1.0"},"canonical_sha256":"000d247b92782195852e1f6ec0704b32d454964fe8ba67d7385240bba924cf8c","source":{"kind":"arxiv","id":"2203.06785","version":1},"source_aliases":[{"alias_kind":"arxiv","alias_value":"2203.06785","created_at":"2026-07-05T04:04:55Z"},{"alias_kind":"arxiv_version","alias_value":"2203.06785v1","created_at":"2026-07-05T04:04:55Z"},{"alias_kind":"doi","alias_value":"10.48550/arxiv.2203.06785","created_at":"2026-07-05T04:04:55Z"},{"alias_kind":"pith_short_12","alias_value":"AAGSI64SPAQZ","created_at":"2026-07-05T04:04:55Z"},{"alias_kind":"pith_short_16","alias_value":"AAGSI64SPAQZLBJO","created_at":"2026-07-05T04:04:55Z"},{"alias_kind":"pith_short_8","alias_value":"AAGSI64S","created_at":"2026-07-05T04:04:55Z"}],"events":[{"event_type":"record_created","subject_pith_number":"pith:2022:AAGSI64SPAQZLBJOD5XMA4CLGL","target":"record","payload":{"canonical_record":{"source":{"id":"2203.06785","kind":"arxiv","version":1},"metadata":{"license":"http://creativecommons.org/licenses/by-nc-sa/4.0/","primary_cat":"astro-ph.SR","submitted_at":"2022-03-13T23:40:21Z","cross_cats_sorted":[],"title_canon_sha256":"b23434b3c9077f7ccaecbac1ee222b1246b76884eada9f13a82abfb5f969d320","abstract_canon_sha256":"eeefab5d83caf5915f819b69a57ad8e93b35ec673bc847a0b83aca5394fd1ebf"},"schema_version":"1.0"},"canonical_sha256":"000d247b92782195852e1f6ec0704b32d454964fe8ba67d7385240bba924cf8c","receipt":{"kind":"pith_receipt","key_id":"pith-v1-2026-05","algorithm":"ed25519","signed_at":"2026-07-05T04:04:55.494638Z","signature_b64":"qt2sfdWXsg/SlsLHRenk/Kb4/Csfy2uNHUhuo1/QUjeGQ7RYu/G29OHE+2x/Dogb36+9NV/COnHDhilW3v2ODQ==","signed_message":"canonical_sha256_bytes","builder_version":"pith-number-builder-2026-05-17-v1","receipt_version":"0.3","canonical_sha256":"000d247b92782195852e1f6ec0704b32d454964fe8ba67d7385240bba924cf8c","last_reissued_at":"2026-07-05T04:04:55.494112Z","signature_status":"signed_v1","first_computed_at":"2026-07-05T04:04:55.494112Z","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54"},"source_kind":"arxiv","source_id":"2203.06785","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":"2026-07-05T04:04:55Z","supersedes":[],"prev_event":null,"signature":{"signature_status":"signed_v1","algorithm":"ed25519","key_id":"pith-v1-2026-05","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54","signature_b64":"+UXcqfaOc7AFDwKfOirrJbgxryedRiNnLE2pojLd1bQEFFDrdgzTEI/+0yBadgs93hZ8raT7CsBunWYuLZm8Bg==","signed_message":"open_graph_event_sha256_bytes","signed_at":"2026-08-01T19:13:58.812980Z"},"content_sha256":"1e60c472e240003b3630240b05d3a257984d50af9cef39a3ec8f39b77c51ee09","schema_version":"1.0","event_id":"sha256:1e60c472e240003b3630240b05d3a257984d50af9cef39a3ec8f39b77c51ee09"},{"event_type":"graph_snapshot","subject_pith_number":"pith:2022:AAGSI64SPAQZLBJOD5XMA4CLGL","target":"graph","payload":{"graph_snapshot":{"paper":{"title":"WFI J161953.3+031909: eclipsing ER UMa-type and Z Cam-type star in the period gap","license":"http://creativecommons.org/licenses/by-nc-sa/4.0/","headline":"","cross_cats":[],"primary_cat":"astro-ph.SR","authors_text":"Taichi Kato (Kyoto U)","submitted_at":"2022-03-13T23:40:21Z","abstract_excerpt":"WFI J161953.3+031909 was considered to be an eclipsing novalike object in the period gap. Using the Zwicky Transient Facility (ZTF) public database, I found that this object is the first eclipsing Z Cam star in the period gap, and is also most likely an ER UMa star with supercycles of 60-80 d. The longest outburst (most likely a superoutburst) comprised 35-46% of the supercycle in the extreme case. If superhumps are confirmed, this becomes the second object showing both ER UMa and Z Cam states after NY Ser. These objects have anomalously high mass-transfer rates despite that they are in the pe"},"claims":{"count":0,"items":[],"snapshot_sha256":"258153158e38e3291e3d48162225fcdb2d5a3ed65a07baac614ab91432fd4f57"},"source":{"id":"2203.06785","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/2203.06785/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":"2026-07-05T04:04:55Z","supersedes":[],"prev_event":null,"signature":{"signature_status":"signed_v1","algorithm":"ed25519","key_id":"pith-v1-2026-05","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54","signature_b64":"Z7SpQRNwdkuiJ3ZOnfTMeg3PNsGqB+r4Y1ST9KisygKjSWQCE5Zjhoixc74DzvlVobjEyG3g4wMnEilLc5vsCQ==","signed_message":"open_graph_event_sha256_bytes","signed_at":"2026-08-01T19:13:58.813291Z"},"content_sha256":"45b1d7485f3be9e91fa36d7c68a570b0565ee9a1cc6a21dedcd996c62823a983","schema_version":"1.0","event_id":"sha256:45b1d7485f3be9e91fa36d7c68a570b0565ee9a1cc6a21dedcd996c62823a983"}],"timestamp_proofs":[],"mirror_hints":[{"mirror_type":"https","name":"Pith Resolver","base_url":"https://pith.science","bundle_url":"https://pith.science/pith/AAGSI64SPAQZLBJOD5XMA4CLGL/bundle.json","state_url":"https://pith.science/pith/AAGSI64SPAQZLBJOD5XMA4CLGL/state.json","well_known_bundle_url":"https://pith.science/.well-known/pith/AAGSI64SPAQZLBJOD5XMA4CLGL/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":"2026-08-01T19:13:58Z","links":{"resolver":"https://pith.science/pith/AAGSI64SPAQZLBJOD5XMA4CLGL","bundle":"https://pith.science/pith/AAGSI64SPAQZLBJOD5XMA4CLGL/bundle.json","state":"https://pith.science/pith/AAGSI64SPAQZLBJOD5XMA4CLGL/state.json","well_known_bundle":"https://pith.science/.well-known/pith/AAGSI64SPAQZLBJOD5XMA4CLGL/bundle.json"},"state":{"state_type":"pith_open_graph_state","state_version":"1.0","pith_number":"pith:2022:AAGSI64SPAQZLBJOD5XMA4CLGL","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":"eeefab5d83caf5915f819b69a57ad8e93b35ec673bc847a0b83aca5394fd1ebf","cross_cats_sorted":[],"license":"http://creativecommons.org/licenses/by-nc-sa/4.0/","primary_cat":"astro-ph.SR","submitted_at":"2022-03-13T23:40:21Z","title_canon_sha256":"b23434b3c9077f7ccaecbac1ee222b1246b76884eada9f13a82abfb5f969d320"},"schema_version":"1.0","source":{"id":"2203.06785","kind":"arxiv","version":1}},"source_aliases":[{"alias_kind":"arxiv","alias_value":"2203.06785","created_at":"2026-07-05T04:04:55Z"},{"alias_kind":"arxiv_version","alias_value":"2203.06785v1","created_at":"2026-07-05T04:04:55Z"},{"alias_kind":"doi","alias_value":"10.48550/arxiv.2203.06785","created_at":"2026-07-05T04:04:55Z"},{"alias_kind":"pith_short_12","alias_value":"AAGSI64SPAQZ","created_at":"2026-07-05T04:04:55Z"},{"alias_kind":"pith_short_16","alias_value":"AAGSI64SPAQZLBJO","created_at":"2026-07-05T04:04:55Z"},{"alias_kind":"pith_short_8","alias_value":"AAGSI64S","created_at":"2026-07-05T04:04:55Z"}],"graph_snapshots":[{"event_id":"sha256:45b1d7485f3be9e91fa36d7c68a570b0565ee9a1cc6a21dedcd996c62823a983","target":"graph","created_at":"2026-07-05T04:04:55Z","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/2203.06785/integrity.json","findings":[],"snapshot_sha256":"c28c3603d3b5d939e8dc4c7e95fa8dfce3d595e45f758748cecf8e644a296938","summary":{"advisory":0,"by_detector":{},"critical":0,"informational":0}},"paper":{"abstract_excerpt":"WFI J161953.3+031909 was considered to be an eclipsing novalike object in the period gap. Using the Zwicky Transient Facility (ZTF) public database, I found that this object is the first eclipsing Z Cam star in the period gap, and is also most likely an ER UMa star with supercycles of 60-80 d. The longest outburst (most likely a superoutburst) comprised 35-46% of the supercycle in the extreme case. If superhumps are confirmed, this becomes the second object showing both ER UMa and Z Cam states after NY Ser. These objects have anomalously high mass-transfer rates despite that they are in the pe","authors_text":"Taichi Kato (Kyoto U)","cross_cats":[],"headline":"","license":"http://creativecommons.org/licenses/by-nc-sa/4.0/","primary_cat":"astro-ph.SR","submitted_at":"2022-03-13T23:40:21Z","title":"WFI J161953.3+031909: eclipsing ER UMa-type and Z Cam-type star in the period gap"},"references":{"count":0,"internal_anchors":0,"resolved_work":0,"sample":[],"snapshot_sha256":"258153158e38e3291e3d48162225fcdb2d5a3ed65a07baac614ab91432fd4f57"},"source":{"id":"2203.06785","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":"sha256:1e60c472e240003b3630240b05d3a257984d50af9cef39a3ec8f39b77c51ee09","target":"record","created_at":"2026-07-05T04:04:55Z","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":"eeefab5d83caf5915f819b69a57ad8e93b35ec673bc847a0b83aca5394fd1ebf","cross_cats_sorted":[],"license":"http://creativecommons.org/licenses/by-nc-sa/4.0/","primary_cat":"astro-ph.SR","submitted_at":"2022-03-13T23:40:21Z","title_canon_sha256":"b23434b3c9077f7ccaecbac1ee222b1246b76884eada9f13a82abfb5f969d320"},"schema_version":"1.0","source":{"id":"2203.06785","kind":"arxiv","version":1}},"canonical_sha256":"000d247b92782195852e1f6ec0704b32d454964fe8ba67d7385240bba924cf8c","receipt":{"algorithm":"ed25519","builder_version":"pith-number-builder-2026-05-17-v1","canonical_sha256":"000d247b92782195852e1f6ec0704b32d454964fe8ba67d7385240bba924cf8c","first_computed_at":"2026-07-05T04:04:55.494112Z","key_id":"pith-v1-2026-05","kind":"pith_receipt","last_reissued_at":"2026-07-05T04:04:55.494112Z","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54","receipt_version":"0.3","signature_b64":"qt2sfdWXsg/SlsLHRenk/Kb4/Csfy2uNHUhuo1/QUjeGQ7RYu/G29OHE+2x/Dogb36+9NV/COnHDhilW3v2ODQ==","signature_status":"signed_v1","signed_at":"2026-07-05T04:04:55.494638Z","signed_message":"canonical_sha256_bytes"},"source_id":"2203.06785","source_kind":"arxiv","source_version":1}}},"equivocations":[],"invalid_events":[],"applied_event_ids":["sha256:1e60c472e240003b3630240b05d3a257984d50af9cef39a3ec8f39b77c51ee09","sha256:45b1d7485f3be9e91fa36d7c68a570b0565ee9a1cc6a21dedcd996c62823a983"],"state_sha256":"520d5a7494ed92d231d755bd05fcb46a4256badd50ec6fe34dc8c5dacf660246"},"bundle_signature":{"signature_status":"signed_v1","algorithm":"ed25519","key_id":"pith-v1-2026-05","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54","signature_b64":"G6kNJrRps87zO8kaCy07Ld4nj7zWerijvaPYXdKcteo4TcqbNkiu6iNIdmaaZiDJ0QmybUhyvqtLZOq+wDj+DQ==","signed_message":"bundle_sha256_bytes","signed_at":"2026-08-01T19:13:58.817659Z","bundle_sha256":"be2076e4c885f6bb2e26359ceaf0e468bedc250d6e9bb96fde6132f9529fc7d3"}}