{"bundle_type":"pith_open_graph_bundle","bundle_version":"1.0","pith_number":"pith:2018:TU72VQI2HNUGBZAHK4YWD3YUQD","short_pith_number":"pith:TU72VQI2","canonical_record":{"source":{"id":"1805.07065","kind":"arxiv","version":1},"metadata":{"license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"astro-ph.SR","submitted_at":"2018-05-18T06:39:45Z","cross_cats_sorted":[],"title_canon_sha256":"eaf0f75b457d6e0473108adfa85b037739235ba343b1970a014246c815ae434e","abstract_canon_sha256":"36442b800a3738d164027322af688284454d348689dd3a3bf12419b8c1692b73"},"schema_version":"1.0"},"canonical_sha256":"9d3faac11a3b6860e407573161ef1480c1d6bbe5536160980d4552785d986d58","source":{"kind":"arxiv","id":"1805.07065","version":1},"source_aliases":[{"alias_kind":"arxiv","alias_value":"1805.07065","created_at":"2026-05-18T00:13:25Z"},{"alias_kind":"arxiv_version","alias_value":"1805.07065v1","created_at":"2026-05-18T00:13:25Z"},{"alias_kind":"doi","alias_value":"10.48550/arxiv.1805.07065","created_at":"2026-05-18T00:13:25Z"},{"alias_kind":"pith_short_12","alias_value":"TU72VQI2HNUG","created_at":"2026-05-18T12:32:56Z"},{"alias_kind":"pith_short_16","alias_value":"TU72VQI2HNUGBZAH","created_at":"2026-05-18T12:32:56Z"},{"alias_kind":"pith_short_8","alias_value":"TU72VQI2","created_at":"2026-05-18T12:32:56Z"}],"events":[{"event_type":"record_created","subject_pith_number":"pith:2018:TU72VQI2HNUGBZAHK4YWD3YUQD","target":"record","payload":{"canonical_record":{"source":{"id":"1805.07065","kind":"arxiv","version":1},"metadata":{"license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"astro-ph.SR","submitted_at":"2018-05-18T06:39:45Z","cross_cats_sorted":[],"title_canon_sha256":"eaf0f75b457d6e0473108adfa85b037739235ba343b1970a014246c815ae434e","abstract_canon_sha256":"36442b800a3738d164027322af688284454d348689dd3a3bf12419b8c1692b73"},"schema_version":"1.0"},"canonical_sha256":"9d3faac11a3b6860e407573161ef1480c1d6bbe5536160980d4552785d986d58","receipt":{"kind":"pith_receipt","key_id":"pith-v1-2026-05","algorithm":"ed25519","signed_at":"2026-05-18T00:13:25.460193Z","signature_b64":"Lva83prAHW8L2JX3+vhFNu6EMOWz1V1prGBzRoKvU+oGwBKSE6Fh2GEI0rn6HLo/XS/7f5Hlp+nYHot0QN6gBw==","signed_message":"canonical_sha256_bytes","builder_version":"pith-number-builder-2026-05-17-v1","receipt_version":"0.3","canonical_sha256":"9d3faac11a3b6860e407573161ef1480c1d6bbe5536160980d4552785d986d58","last_reissued_at":"2026-05-18T00:13:25.459497Z","signature_status":"signed_v1","first_computed_at":"2026-05-18T00:13:25.459497Z","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54"},"source_kind":"arxiv","source_id":"1805.07065","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":"2026-05-18T00:13:25Z","supersedes":[],"prev_event":null,"signature":{"signature_status":"signed_v1","algorithm":"ed25519","key_id":"pith-v1-2026-05","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54","signature_b64":"dgKCTLAZ0MMGgq7AK+rHG3uWcBNWmkKITzH41ss6N/rp167P6H9n8HsbpBxctcG0eYJw/5A413B5fFF9DUk0BA==","signed_message":"open_graph_event_sha256_bytes","signed_at":"2026-07-04T21:07:20.037088Z"},"content_sha256":"75f72dbe860bcc29a8df0d4bcecb7d504767a69d845ced3f49a2c415334f1bd1","schema_version":"1.0","event_id":"sha256:75f72dbe860bcc29a8df0d4bcecb7d504767a69d845ced3f49a2c415334f1bd1"},{"event_type":"graph_snapshot","subject_pith_number":"pith:2018:TU72VQI2HNUGBZAHK4YWD3YUQD","target":"graph","payload":{"graph_snapshot":{"paper":{"title":"Discovery of deep eclipses in the cataclysmic variable IPHAS J051814.33+294113.0","license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","headline":"","cross_cats":[],"primary_cat":"astro-ph.SR","authors_text":"V. P. Kozhevnikov","submitted_at":"2018-05-18T06:39:45Z","abstract_excerpt":"Performing the photometric observations of the cataclysmic variable IPHAS J051814.33+294113.0, we discovered very deep eclipses. The observations were obtained over 14 nights, had a total duration of 56 hours and covered one year. The large time span, during which we observed the eclipses, allowed us to measure the orbital period in IPHAS J051814.33+294113.0 with high precision, Porb=0.20603098+/-0.00000025 d. The prominent parts of the eclipses lasted 0.1+/-0.01 phases or 30+/-3 min. The depth of the eclipses was variable in the range 1.8-2.9 mag. The average eclipse depth was equal to 2.42+/"},"claims":{"count":0,"items":[],"snapshot_sha256":"258153158e38e3291e3d48162225fcdb2d5a3ed65a07baac614ab91432fd4f57"},"source":{"id":"1805.07065","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":"2026-05-18T00:13:25Z","supersedes":[],"prev_event":null,"signature":{"signature_status":"signed_v1","algorithm":"ed25519","key_id":"pith-v1-2026-05","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54","signature_b64":"+P19/VEQsu0zoMe39j1MSlTcEXfyprHtF1ZuyaoA6DO4zg4VTc2Dbgbkqr9T9rH+I6DYjwpm+axXRw5/ouqyAQ==","signed_message":"open_graph_event_sha256_bytes","signed_at":"2026-07-04T21:07:20.037455Z"},"content_sha256":"477b1f76ec7db1e04586f1b4089d1277fa7aff53d444cb52d86c8035bec54209","schema_version":"1.0","event_id":"sha256:477b1f76ec7db1e04586f1b4089d1277fa7aff53d444cb52d86c8035bec54209"}],"timestamp_proofs":[],"mirror_hints":[{"mirror_type":"https","name":"Pith Resolver","base_url":"https://pith.science","bundle_url":"https://pith.science/pith/TU72VQI2HNUGBZAHK4YWD3YUQD/bundle.json","state_url":"https://pith.science/pith/TU72VQI2HNUGBZAHK4YWD3YUQD/state.json","well_known_bundle_url":"https://pith.science/.well-known/pith/TU72VQI2HNUGBZAHK4YWD3YUQD/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":"2026-07-04T21:07:20Z","links":{"resolver":"https://pith.science/pith/TU72VQI2HNUGBZAHK4YWD3YUQD","bundle":"https://pith.science/pith/TU72VQI2HNUGBZAHK4YWD3YUQD/bundle.json","state":"https://pith.science/pith/TU72VQI2HNUGBZAHK4YWD3YUQD/state.json","well_known_bundle":"https://pith.science/.well-known/pith/TU72VQI2HNUGBZAHK4YWD3YUQD/bundle.json"},"state":{"state_type":"pith_open_graph_state","state_version":"1.0","pith_number":"pith:2018:TU72VQI2HNUGBZAHK4YWD3YUQD","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":"36442b800a3738d164027322af688284454d348689dd3a3bf12419b8c1692b73","cross_cats_sorted":[],"license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"astro-ph.SR","submitted_at":"2018-05-18T06:39:45Z","title_canon_sha256":"eaf0f75b457d6e0473108adfa85b037739235ba343b1970a014246c815ae434e"},"schema_version":"1.0","source":{"id":"1805.07065","kind":"arxiv","version":1}},"source_aliases":[{"alias_kind":"arxiv","alias_value":"1805.07065","created_at":"2026-05-18T00:13:25Z"},{"alias_kind":"arxiv_version","alias_value":"1805.07065v1","created_at":"2026-05-18T00:13:25Z"},{"alias_kind":"doi","alias_value":"10.48550/arxiv.1805.07065","created_at":"2026-05-18T00:13:25Z"},{"alias_kind":"pith_short_12","alias_value":"TU72VQI2HNUG","created_at":"2026-05-18T12:32:56Z"},{"alias_kind":"pith_short_16","alias_value":"TU72VQI2HNUGBZAH","created_at":"2026-05-18T12:32:56Z"},{"alias_kind":"pith_short_8","alias_value":"TU72VQI2","created_at":"2026-05-18T12:32:56Z"}],"graph_snapshots":[{"event_id":"sha256:477b1f76ec7db1e04586f1b4089d1277fa7aff53d444cb52d86c8035bec54209","target":"graph","created_at":"2026-05-18T00:13:25Z","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":"Performing the photometric observations of the cataclysmic variable IPHAS J051814.33+294113.0, we discovered very deep eclipses. The observations were obtained over 14 nights, had a total duration of 56 hours and covered one year. The large time span, during which we observed the eclipses, allowed us to measure the orbital period in IPHAS J051814.33+294113.0 with high precision, Porb=0.20603098+/-0.00000025 d. The prominent parts of the eclipses lasted 0.1+/-0.01 phases or 30+/-3 min. The depth of the eclipses was variable in the range 1.8-2.9 mag. The average eclipse depth was equal to 2.42+/","authors_text":"V. P. Kozhevnikov","cross_cats":[],"headline":"","license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"astro-ph.SR","submitted_at":"2018-05-18T06:39:45Z","title":"Discovery of deep eclipses in the cataclysmic variable IPHAS J051814.33+294113.0"},"references":{"count":0,"internal_anchors":0,"resolved_work":0,"sample":[],"snapshot_sha256":"258153158e38e3291e3d48162225fcdb2d5a3ed65a07baac614ab91432fd4f57"},"source":{"id":"1805.07065","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":"sha256:75f72dbe860bcc29a8df0d4bcecb7d504767a69d845ced3f49a2c415334f1bd1","target":"record","created_at":"2026-05-18T00:13:25Z","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":"36442b800a3738d164027322af688284454d348689dd3a3bf12419b8c1692b73","cross_cats_sorted":[],"license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"astro-ph.SR","submitted_at":"2018-05-18T06:39:45Z","title_canon_sha256":"eaf0f75b457d6e0473108adfa85b037739235ba343b1970a014246c815ae434e"},"schema_version":"1.0","source":{"id":"1805.07065","kind":"arxiv","version":1}},"canonical_sha256":"9d3faac11a3b6860e407573161ef1480c1d6bbe5536160980d4552785d986d58","receipt":{"algorithm":"ed25519","builder_version":"pith-number-builder-2026-05-17-v1","canonical_sha256":"9d3faac11a3b6860e407573161ef1480c1d6bbe5536160980d4552785d986d58","first_computed_at":"2026-05-18T00:13:25.459497Z","key_id":"pith-v1-2026-05","kind":"pith_receipt","last_reissued_at":"2026-05-18T00:13:25.459497Z","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54","receipt_version":"0.3","signature_b64":"Lva83prAHW8L2JX3+vhFNu6EMOWz1V1prGBzRoKvU+oGwBKSE6Fh2GEI0rn6HLo/XS/7f5Hlp+nYHot0QN6gBw==","signature_status":"signed_v1","signed_at":"2026-05-18T00:13:25.460193Z","signed_message":"canonical_sha256_bytes"},"source_id":"1805.07065","source_kind":"arxiv","source_version":1}}},"equivocations":[],"invalid_events":[],"applied_event_ids":["sha256:75f72dbe860bcc29a8df0d4bcecb7d504767a69d845ced3f49a2c415334f1bd1","sha256:477b1f76ec7db1e04586f1b4089d1277fa7aff53d444cb52d86c8035bec54209"],"state_sha256":"b448576b526537fc4fdd822ac56cc699ed05dcfcc0d869261343be9ba51de92e"},"bundle_signature":{"signature_status":"signed_v1","algorithm":"ed25519","key_id":"pith-v1-2026-05","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54","signature_b64":"H63hmBEfgdj/boSPXM6Vsodpgmjr0Iy9gZtkONnQEw7Y6wkh+28n0McIH8WQn8PKO8DXJcTHUAfvLtutgHsWAA==","signed_message":"bundle_sha256_bytes","signed_at":"2026-07-04T21:07:20.039870Z","bundle_sha256":"c51d537ca55b4737c53c15f3a88f55cfd8322b582afc11830c8726be5846bc97"}}