{"bundle_type":"pith_open_graph_bundle","bundle_version":"1.0","pith_number":"pith:2025:TOT5SSRBH6WJRD3PWDMRMFC4NS","short_pith_number":"pith:TOT5SSRB","canonical_record":{"source":{"id":"2502.01561","kind":"arxiv","version":1},"metadata":{"license":"http://creativecommons.org/licenses/by/4.0/","primary_cat":"astro-ph.SR","submitted_at":"2025-02-03T17:44:50Z","cross_cats_sorted":[],"title_canon_sha256":"931e26f76151820b275ea61ba503594a9a953df03c2a4ad84b10ef09b47e0c03","abstract_canon_sha256":"b1a6c58e9b8c39cdec384313fc2dde9016667e66b21d4374f6e5aab06bc9ab66"},"schema_version":"1.0"},"canonical_sha256":"9ba7d94a213fac988f6fb0d916145c6c8ebd5e1b52938f20d1d84261b8da68d0","source":{"kind":"arxiv","id":"2502.01561","version":1},"source_aliases":[{"alias_kind":"arxiv","alias_value":"2502.01561","created_at":"2026-07-05T10:08:56Z"},{"alias_kind":"arxiv_version","alias_value":"2502.01561v1","created_at":"2026-07-05T10:08:56Z"},{"alias_kind":"doi","alias_value":"10.48550/arxiv.2502.01561","created_at":"2026-07-05T10:08:56Z"},{"alias_kind":"pith_short_12","alias_value":"TOT5SSRBH6WJ","created_at":"2026-07-05T10:08:56Z"},{"alias_kind":"pith_short_16","alias_value":"TOT5SSRBH6WJRD3P","created_at":"2026-07-05T10:08:56Z"},{"alias_kind":"pith_short_8","alias_value":"TOT5SSRB","created_at":"2026-07-05T10:08:56Z"}],"events":[{"event_type":"record_created","subject_pith_number":"pith:2025:TOT5SSRBH6WJRD3PWDMRMFC4NS","target":"record","payload":{"canonical_record":{"source":{"id":"2502.01561","kind":"arxiv","version":1},"metadata":{"license":"http://creativecommons.org/licenses/by/4.0/","primary_cat":"astro-ph.SR","submitted_at":"2025-02-03T17:44:50Z","cross_cats_sorted":[],"title_canon_sha256":"931e26f76151820b275ea61ba503594a9a953df03c2a4ad84b10ef09b47e0c03","abstract_canon_sha256":"b1a6c58e9b8c39cdec384313fc2dde9016667e66b21d4374f6e5aab06bc9ab66"},"schema_version":"1.0"},"canonical_sha256":"9ba7d94a213fac988f6fb0d916145c6c8ebd5e1b52938f20d1d84261b8da68d0","receipt":{"kind":"pith_receipt","key_id":"pith-v1-2026-05","algorithm":"ed25519","signed_at":"2026-07-05T10:08:56.650940Z","signature_b64":"QFKoAwPdApISOTIvIllkKaskysVUGpALdJGH7XPaX1tHceePpYTCAlxfk7xpTg2dZvdiMldjog2Gw/ckdePRDw==","signed_message":"canonical_sha256_bytes","builder_version":"pith-number-builder-2026-05-17-v1","receipt_version":"0.3","canonical_sha256":"9ba7d94a213fac988f6fb0d916145c6c8ebd5e1b52938f20d1d84261b8da68d0","last_reissued_at":"2026-07-05T10:08:56.649201Z","signature_status":"signed_v1","first_computed_at":"2026-07-05T10:08:56.649201Z","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54"},"source_kind":"arxiv","source_id":"2502.01561","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":"2026-07-05T10:08:56Z","supersedes":[],"prev_event":null,"signature":{"signature_status":"signed_v1","algorithm":"ed25519","key_id":"pith-v1-2026-05","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54","signature_b64":"mLzdbfEXgpvTWtDEek+c7vbFVPp/2y3hQG0naqaQRI0uFT8+rDpKt2pnlSR8NoZRcm/z9S8hi9rVgLZPoHpMAA==","signed_message":"open_graph_event_sha256_bytes","signed_at":"2026-07-06T23:30:42.307213Z"},"content_sha256":"982d3b5dd02f02753ee4944453c70a300ce85e530745742ee65e593725962bbe","schema_version":"1.0","event_id":"sha256:982d3b5dd02f02753ee4944453c70a300ce85e530745742ee65e593725962bbe"},{"event_type":"graph_snapshot","subject_pith_number":"pith:2025:TOT5SSRBH6WJRD3PWDMRMFC4NS","target":"graph","payload":{"graph_snapshot":{"paper":{"title":"V498 Hya, a new candidate for a period bouncer Cataclysmic Variable","license":"http://creativecommons.org/licenses/by/4.0/","headline":"","cross_cats":[],"primary_cat":"astro-ph.SR","authors_text":"Anna Francesca Pala, Boris T. Gansicke, Gagik Tovmassian, Keith Inight, Matthew Green, Matthias R. Schreiber, Odette Toloza, Vedant Chandra","submitted_at":"2025-02-03T17:44:50Z","abstract_excerpt":"V498 Hya (SDSS J084555.07+033929.2) was identified as a short-period cataclysmic variable (CV) by the Catalina Real-Time Transient Survey (CRTS) in 2008. The superhump period was measured during the detected single superoutburst of V498 Hya. The quiescent spectrum subsequently taken by the \\SDSSV\\ Milky Way Mapper survey suggested that the CV donor may be a brown dwarf. We present time-resolved follow-up spectroscopy of V498 Hya in quiescence, obtained with the GTC OSIRIS spectrograph, from which we derived the 86.053 min spectroscopic period, systemic radial velocity, and the gravitational re"},"claims":{"count":0,"items":[],"snapshot_sha256":"258153158e38e3291e3d48162225fcdb2d5a3ed65a07baac614ab91432fd4f57"},"source":{"id":"2502.01561","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/2502.01561/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":"2026-07-05T10:08:56Z","supersedes":[],"prev_event":null,"signature":{"signature_status":"signed_v1","algorithm":"ed25519","key_id":"pith-v1-2026-05","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54","signature_b64":"x128JNb508itx21sfv7nZO7yaACN42dRiPwII0L9/Uq+jeQoeQDt/+lv+Ix8inM2I2CSq15d+VfyJQ4+JdIfBw==","signed_message":"open_graph_event_sha256_bytes","signed_at":"2026-07-06T23:30:42.307594Z"},"content_sha256":"45ab02023cd2fb9342f38949b9345aa4c26d45dd7e6e522e18ba76719d3b43e6","schema_version":"1.0","event_id":"sha256:45ab02023cd2fb9342f38949b9345aa4c26d45dd7e6e522e18ba76719d3b43e6"}],"timestamp_proofs":[],"mirror_hints":[{"mirror_type":"https","name":"Pith Resolver","base_url":"https://pith.science","bundle_url":"https://pith.science/pith/TOT5SSRBH6WJRD3PWDMRMFC4NS/bundle.json","state_url":"https://pith.science/pith/TOT5SSRBH6WJRD3PWDMRMFC4NS/state.json","well_known_bundle_url":"https://pith.science/.well-known/pith/TOT5SSRBH6WJRD3PWDMRMFC4NS/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":"2026-07-06T23:30:42Z","links":{"resolver":"https://pith.science/pith/TOT5SSRBH6WJRD3PWDMRMFC4NS","bundle":"https://pith.science/pith/TOT5SSRBH6WJRD3PWDMRMFC4NS/bundle.json","state":"https://pith.science/pith/TOT5SSRBH6WJRD3PWDMRMFC4NS/state.json","well_known_bundle":"https://pith.science/.well-known/pith/TOT5SSRBH6WJRD3PWDMRMFC4NS/bundle.json"},"state":{"state_type":"pith_open_graph_state","state_version":"1.0","pith_number":"pith:2025:TOT5SSRBH6WJRD3PWDMRMFC4NS","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":"b1a6c58e9b8c39cdec384313fc2dde9016667e66b21d4374f6e5aab06bc9ab66","cross_cats_sorted":[],"license":"http://creativecommons.org/licenses/by/4.0/","primary_cat":"astro-ph.SR","submitted_at":"2025-02-03T17:44:50Z","title_canon_sha256":"931e26f76151820b275ea61ba503594a9a953df03c2a4ad84b10ef09b47e0c03"},"schema_version":"1.0","source":{"id":"2502.01561","kind":"arxiv","version":1}},"source_aliases":[{"alias_kind":"arxiv","alias_value":"2502.01561","created_at":"2026-07-05T10:08:56Z"},{"alias_kind":"arxiv_version","alias_value":"2502.01561v1","created_at":"2026-07-05T10:08:56Z"},{"alias_kind":"doi","alias_value":"10.48550/arxiv.2502.01561","created_at":"2026-07-05T10:08:56Z"},{"alias_kind":"pith_short_12","alias_value":"TOT5SSRBH6WJ","created_at":"2026-07-05T10:08:56Z"},{"alias_kind":"pith_short_16","alias_value":"TOT5SSRBH6WJRD3P","created_at":"2026-07-05T10:08:56Z"},{"alias_kind":"pith_short_8","alias_value":"TOT5SSRB","created_at":"2026-07-05T10:08:56Z"}],"graph_snapshots":[{"event_id":"sha256:45ab02023cd2fb9342f38949b9345aa4c26d45dd7e6e522e18ba76719d3b43e6","target":"graph","created_at":"2026-07-05T10:08:56Z","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/2502.01561/integrity.json","findings":[],"snapshot_sha256":"c28c3603d3b5d939e8dc4c7e95fa8dfce3d595e45f758748cecf8e644a296938","summary":{"advisory":0,"by_detector":{},"critical":0,"informational":0}},"paper":{"abstract_excerpt":"V498 Hya (SDSS J084555.07+033929.2) was identified as a short-period cataclysmic variable (CV) by the Catalina Real-Time Transient Survey (CRTS) in 2008. The superhump period was measured during the detected single superoutburst of V498 Hya. The quiescent spectrum subsequently taken by the \\SDSSV\\ Milky Way Mapper survey suggested that the CV donor may be a brown dwarf. We present time-resolved follow-up spectroscopy of V498 Hya in quiescence, obtained with the GTC OSIRIS spectrograph, from which we derived the 86.053 min spectroscopic period, systemic radial velocity, and the gravitational re","authors_text":"Anna Francesca Pala, Boris T. Gansicke, Gagik Tovmassian, Keith Inight, Matthew Green, Matthias R. Schreiber, Odette Toloza, Vedant Chandra","cross_cats":[],"headline":"","license":"http://creativecommons.org/licenses/by/4.0/","primary_cat":"astro-ph.SR","submitted_at":"2025-02-03T17:44:50Z","title":"V498 Hya, a new candidate for a period bouncer Cataclysmic Variable"},"references":{"count":0,"internal_anchors":0,"resolved_work":0,"sample":[],"snapshot_sha256":"258153158e38e3291e3d48162225fcdb2d5a3ed65a07baac614ab91432fd4f57"},"source":{"id":"2502.01561","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":"sha256:982d3b5dd02f02753ee4944453c70a300ce85e530745742ee65e593725962bbe","target":"record","created_at":"2026-07-05T10:08:56Z","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":"b1a6c58e9b8c39cdec384313fc2dde9016667e66b21d4374f6e5aab06bc9ab66","cross_cats_sorted":[],"license":"http://creativecommons.org/licenses/by/4.0/","primary_cat":"astro-ph.SR","submitted_at":"2025-02-03T17:44:50Z","title_canon_sha256":"931e26f76151820b275ea61ba503594a9a953df03c2a4ad84b10ef09b47e0c03"},"schema_version":"1.0","source":{"id":"2502.01561","kind":"arxiv","version":1}},"canonical_sha256":"9ba7d94a213fac988f6fb0d916145c6c8ebd5e1b52938f20d1d84261b8da68d0","receipt":{"algorithm":"ed25519","builder_version":"pith-number-builder-2026-05-17-v1","canonical_sha256":"9ba7d94a213fac988f6fb0d916145c6c8ebd5e1b52938f20d1d84261b8da68d0","first_computed_at":"2026-07-05T10:08:56.649201Z","key_id":"pith-v1-2026-05","kind":"pith_receipt","last_reissued_at":"2026-07-05T10:08:56.649201Z","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54","receipt_version":"0.3","signature_b64":"QFKoAwPdApISOTIvIllkKaskysVUGpALdJGH7XPaX1tHceePpYTCAlxfk7xpTg2dZvdiMldjog2Gw/ckdePRDw==","signature_status":"signed_v1","signed_at":"2026-07-05T10:08:56.650940Z","signed_message":"canonical_sha256_bytes"},"source_id":"2502.01561","source_kind":"arxiv","source_version":1}}},"equivocations":[],"invalid_events":[],"applied_event_ids":["sha256:982d3b5dd02f02753ee4944453c70a300ce85e530745742ee65e593725962bbe","sha256:45ab02023cd2fb9342f38949b9345aa4c26d45dd7e6e522e18ba76719d3b43e6"],"state_sha256":"a7246323f55223c1cea73ce4af0e3d0c69d78841cf6862a7d1c347465acf6226"},"bundle_signature":{"signature_status":"signed_v1","algorithm":"ed25519","key_id":"pith-v1-2026-05","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54","signature_b64":"nM9U3k3LGlOIng34npUxIqjpxRUBCOZ2JAv/y2HuIuaeqAeQpBlAKWB3sWk5u2kltMwxdA5oo7HLufBgPl8CBw==","signed_message":"bundle_sha256_bytes","signed_at":"2026-07-06T23:30:42.309815Z","bundle_sha256":"b3ab2f8ec75bea002d0b78d8597548a989e4a7109e3e356f42ce15501f90270f"}}