{"bundle_type":"pith_open_graph_bundle","bundle_version":"1.0","pith_number":"pith:2014:22JWI7YBD7BM6DGSD775RTQH3P","short_pith_number":"pith:22JWI7YB","canonical_record":{"source":{"id":"1411.2385","kind":"arxiv","version":1},"metadata":{"license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"astro-ph.SR","submitted_at":"2014-11-10T11:25:53Z","cross_cats_sorted":[],"title_canon_sha256":"fbf8503c0a5a8f7df5d0adc8e59e94ec9bae5e7322182bc990ad32024c8ee0ba","abstract_canon_sha256":"907b7adc6c4c5a7ffdc52fadacbd598014a31325e78a7b7e1097a9830852a4fe"},"schema_version":"1.0"},"canonical_sha256":"d693647f011fc2cf0cd21fffd8ce07dbd1eac45cd59d78045c4eb448b98ceb45","source":{"kind":"arxiv","id":"1411.2385","version":1},"source_aliases":[{"alias_kind":"arxiv","alias_value":"1411.2385","created_at":"2026-05-18T01:41:33Z"},{"alias_kind":"arxiv_version","alias_value":"1411.2385v1","created_at":"2026-05-18T01:41:33Z"},{"alias_kind":"doi","alias_value":"10.48550/arxiv.1411.2385","created_at":"2026-05-18T01:41:33Z"},{"alias_kind":"pith_short_12","alias_value":"22JWI7YBD7BM","created_at":"2026-05-18T12:28:09Z"},{"alias_kind":"pith_short_16","alias_value":"22JWI7YBD7BM6DGS","created_at":"2026-05-18T12:28:09Z"},{"alias_kind":"pith_short_8","alias_value":"22JWI7YB","created_at":"2026-05-18T12:28:09Z"}],"events":[{"event_type":"record_created","subject_pith_number":"pith:2014:22JWI7YBD7BM6DGSD775RTQH3P","target":"record","payload":{"canonical_record":{"source":{"id":"1411.2385","kind":"arxiv","version":1},"metadata":{"license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"astro-ph.SR","submitted_at":"2014-11-10T11:25:53Z","cross_cats_sorted":[],"title_canon_sha256":"fbf8503c0a5a8f7df5d0adc8e59e94ec9bae5e7322182bc990ad32024c8ee0ba","abstract_canon_sha256":"907b7adc6c4c5a7ffdc52fadacbd598014a31325e78a7b7e1097a9830852a4fe"},"schema_version":"1.0"},"canonical_sha256":"d693647f011fc2cf0cd21fffd8ce07dbd1eac45cd59d78045c4eb448b98ceb45","receipt":{"kind":"pith_receipt","key_id":"pith-v1-2026-05","algorithm":"ed25519","signed_at":"2026-05-18T01:41:33.708631Z","signature_b64":"/Fyc9wRYkfQyX8NYINmkmXQHfiLDMW+FZwEktmEtvOOb1eEOc7HkO2ChCjv7oT3QAPEuwn2dXDWBpknyvOxQAQ==","signed_message":"canonical_sha256_bytes","builder_version":"pith-number-builder-2026-05-17-v1","receipt_version":"0.3","canonical_sha256":"d693647f011fc2cf0cd21fffd8ce07dbd1eac45cd59d78045c4eb448b98ceb45","last_reissued_at":"2026-05-18T01:41:33.708125Z","signature_status":"signed_v1","first_computed_at":"2026-05-18T01:41:33.708125Z","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54"},"source_kind":"arxiv","source_id":"1411.2385","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":"2026-05-18T01:41:33Z","supersedes":[],"prev_event":null,"signature":{"signature_status":"signed_v1","algorithm":"ed25519","key_id":"pith-v1-2026-05","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54","signature_b64":"nawgwr9PDqBHYi2fQxK+tluJiNnKhJkdnKH39DwPg15O+eIP6Nx1eV/r3wnUkUAetDso/jgDIOCZCOA5D7EUAg==","signed_message":"open_graph_event_sha256_bytes","signed_at":"2026-05-26T03:15:19.517930Z"},"content_sha256":"3db97001c20eed5629220c0404d3ab2c8df243a96bc894f3c4ccfaf84c22b884","schema_version":"1.0","event_id":"sha256:3db97001c20eed5629220c0404d3ab2c8df243a96bc894f3c4ccfaf84c22b884"},{"event_type":"graph_snapshot","subject_pith_number":"pith:2014:22JWI7YBD7BM6DGSD775RTQH3P","target":"graph","payload":{"graph_snapshot":{"paper":{"title":"Orbital periods of cataclysmic variables identified by the SDSS. IX. NTT photometry of eight eclipsing and three magnetic systems","license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","headline":"","cross_cats":[],"primary_cat":"astro-ph.SR","authors_text":"B. T. Gaensicke, C. M. Copperwheat, C. Tappert, John Southworth","submitted_at":"2014-11-10T11:25:53Z","abstract_excerpt":"We report the discovery of eclipses and the first orbital period measurements for four cataclysmic variables, plus the first orbital period measurements for one known eclipsing and two magnetic systems. SDSS J093537.46+161950.8 exhibits 1-mag deep eclipses with a period of 92.245 min. SDSS J105754.25+275947.5 has short and deep eclipses and an orbital period of 90.44 min. Its light curve has no trace of a bright spot and its spectrum is dominated by the white dwarf component, suggesting a low mass accretion rate and a very low-mass and cool secondary star. CSS J132536+210037 shows 1-mag deep e"},"claims":{"count":0,"items":[],"snapshot_sha256":"258153158e38e3291e3d48162225fcdb2d5a3ed65a07baac614ab91432fd4f57"},"source":{"id":"1411.2385","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":"2026-05-18T01:41:33Z","supersedes":[],"prev_event":null,"signature":{"signature_status":"signed_v1","algorithm":"ed25519","key_id":"pith-v1-2026-05","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54","signature_b64":"UQbyWMtcc7Pf1ss+s11WfQmqsZq2g9LQ3I7m3Ji38fAzI8p7oDWPcIRE15tKlJSlUi3lLPEFelMYz5Ing5kKDw==","signed_message":"open_graph_event_sha256_bytes","signed_at":"2026-05-26T03:15:19.518549Z"},"content_sha256":"f2b6b2226602776985b313c98a58961c875edd42a3a0152d90210b5cbfb53ab7","schema_version":"1.0","event_id":"sha256:f2b6b2226602776985b313c98a58961c875edd42a3a0152d90210b5cbfb53ab7"}],"timestamp_proofs":[],"mirror_hints":[{"mirror_type":"https","name":"Pith Resolver","base_url":"https://pith.science","bundle_url":"https://pith.science/pith/22JWI7YBD7BM6DGSD775RTQH3P/bundle.json","state_url":"https://pith.science/pith/22JWI7YBD7BM6DGSD775RTQH3P/state.json","well_known_bundle_url":"https://pith.science/.well-known/pith/22JWI7YBD7BM6DGSD775RTQH3P/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":"2026-05-26T03:15:19Z","links":{"resolver":"https://pith.science/pith/22JWI7YBD7BM6DGSD775RTQH3P","bundle":"https://pith.science/pith/22JWI7YBD7BM6DGSD775RTQH3P/bundle.json","state":"https://pith.science/pith/22JWI7YBD7BM6DGSD775RTQH3P/state.json","well_known_bundle":"https://pith.science/.well-known/pith/22JWI7YBD7BM6DGSD775RTQH3P/bundle.json"},"state":{"state_type":"pith_open_graph_state","state_version":"1.0","pith_number":"pith:2014:22JWI7YBD7BM6DGSD775RTQH3P","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":"907b7adc6c4c5a7ffdc52fadacbd598014a31325e78a7b7e1097a9830852a4fe","cross_cats_sorted":[],"license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"astro-ph.SR","submitted_at":"2014-11-10T11:25:53Z","title_canon_sha256":"fbf8503c0a5a8f7df5d0adc8e59e94ec9bae5e7322182bc990ad32024c8ee0ba"},"schema_version":"1.0","source":{"id":"1411.2385","kind":"arxiv","version":1}},"source_aliases":[{"alias_kind":"arxiv","alias_value":"1411.2385","created_at":"2026-05-18T01:41:33Z"},{"alias_kind":"arxiv_version","alias_value":"1411.2385v1","created_at":"2026-05-18T01:41:33Z"},{"alias_kind":"doi","alias_value":"10.48550/arxiv.1411.2385","created_at":"2026-05-18T01:41:33Z"},{"alias_kind":"pith_short_12","alias_value":"22JWI7YBD7BM","created_at":"2026-05-18T12:28:09Z"},{"alias_kind":"pith_short_16","alias_value":"22JWI7YBD7BM6DGS","created_at":"2026-05-18T12:28:09Z"},{"alias_kind":"pith_short_8","alias_value":"22JWI7YB","created_at":"2026-05-18T12:28:09Z"}],"graph_snapshots":[{"event_id":"sha256:f2b6b2226602776985b313c98a58961c875edd42a3a0152d90210b5cbfb53ab7","target":"graph","created_at":"2026-05-18T01:41:33Z","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 report the discovery of eclipses and the first orbital period measurements for four cataclysmic variables, plus the first orbital period measurements for one known eclipsing and two magnetic systems. SDSS J093537.46+161950.8 exhibits 1-mag deep eclipses with a period of 92.245 min. SDSS J105754.25+275947.5 has short and deep eclipses and an orbital period of 90.44 min. Its light curve has no trace of a bright spot and its spectrum is dominated by the white dwarf component, suggesting a low mass accretion rate and a very low-mass and cool secondary star. CSS J132536+210037 shows 1-mag deep e","authors_text":"B. T. Gaensicke, C. M. Copperwheat, C. Tappert, John Southworth","cross_cats":[],"headline":"","license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"astro-ph.SR","submitted_at":"2014-11-10T11:25:53Z","title":"Orbital periods of cataclysmic variables identified by the SDSS. IX. NTT photometry of eight eclipsing and three magnetic systems"},"references":{"count":0,"internal_anchors":0,"resolved_work":0,"sample":[],"snapshot_sha256":"258153158e38e3291e3d48162225fcdb2d5a3ed65a07baac614ab91432fd4f57"},"source":{"id":"1411.2385","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":"sha256:3db97001c20eed5629220c0404d3ab2c8df243a96bc894f3c4ccfaf84c22b884","target":"record","created_at":"2026-05-18T01:41:33Z","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":"907b7adc6c4c5a7ffdc52fadacbd598014a31325e78a7b7e1097a9830852a4fe","cross_cats_sorted":[],"license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"astro-ph.SR","submitted_at":"2014-11-10T11:25:53Z","title_canon_sha256":"fbf8503c0a5a8f7df5d0adc8e59e94ec9bae5e7322182bc990ad32024c8ee0ba"},"schema_version":"1.0","source":{"id":"1411.2385","kind":"arxiv","version":1}},"canonical_sha256":"d693647f011fc2cf0cd21fffd8ce07dbd1eac45cd59d78045c4eb448b98ceb45","receipt":{"algorithm":"ed25519","builder_version":"pith-number-builder-2026-05-17-v1","canonical_sha256":"d693647f011fc2cf0cd21fffd8ce07dbd1eac45cd59d78045c4eb448b98ceb45","first_computed_at":"2026-05-18T01:41:33.708125Z","key_id":"pith-v1-2026-05","kind":"pith_receipt","last_reissued_at":"2026-05-18T01:41:33.708125Z","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54","receipt_version":"0.3","signature_b64":"/Fyc9wRYkfQyX8NYINmkmXQHfiLDMW+FZwEktmEtvOOb1eEOc7HkO2ChCjv7oT3QAPEuwn2dXDWBpknyvOxQAQ==","signature_status":"signed_v1","signed_at":"2026-05-18T01:41:33.708631Z","signed_message":"canonical_sha256_bytes"},"source_id":"1411.2385","source_kind":"arxiv","source_version":1}}},"equivocations":[],"invalid_events":[],"applied_event_ids":["sha256:3db97001c20eed5629220c0404d3ab2c8df243a96bc894f3c4ccfaf84c22b884","sha256:f2b6b2226602776985b313c98a58961c875edd42a3a0152d90210b5cbfb53ab7"],"state_sha256":"3700fd178e14bc7d56852c71194161801fd7c38e47007130d76dbcc87c07fc1d"},"bundle_signature":{"signature_status":"signed_v1","algorithm":"ed25519","key_id":"pith-v1-2026-05","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54","signature_b64":"Xv9uUR4uIOBRM55Gl3pBFBY/Q/9gpPL/75gsb2mPMHo5w1aCTFetfKjCD0sO24+Qqw3kNzfu4qxNZcwsGe9nCg==","signed_message":"bundle_sha256_bytes","signed_at":"2026-05-26T03:15:19.522111Z","bundle_sha256":"61ca3eebe4e114c0ef3c63c4bb40ac2a4470779a391386ac53ec977b9a03d099"}}