{"bundle_type":"pith_open_graph_bundle","bundle_version":"1.0","pith_number":"pith:2016:5KNSZYDYQMIAIKDUF2NW5HTKNN","short_pith_number":"pith:5KNSZYDY","canonical_record":{"source":{"id":"1605.01955","kind":"arxiv","version":2},"metadata":{"license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"astro-ph.EP","submitted_at":"2016-05-06T14:34:03Z","cross_cats_sorted":["astro-ph.SR"],"title_canon_sha256":"2582edd9f37bce5daf80c7466bc2ca98c8b73ab733f29b6110a25debf450cf2d","abstract_canon_sha256":"f1bf70db2215e20e0343f55934cafaf3ffe864d3fde6b870dd15fc795895772b"},"schema_version":"1.0"},"canonical_sha256":"ea9b2ce07883100428742e9b6e9e6a6b58d99c467eb4c92e6b03d65b13ca7808","source":{"kind":"arxiv","id":"1605.01955","version":2},"source_aliases":[{"alias_kind":"arxiv","alias_value":"1605.01955","created_at":"2026-05-18T01:11:30Z"},{"alias_kind":"arxiv_version","alias_value":"1605.01955v2","created_at":"2026-05-18T01:11:30Z"},{"alias_kind":"doi","alias_value":"10.48550/arxiv.1605.01955","created_at":"2026-05-18T01:11:30Z"},{"alias_kind":"pith_short_12","alias_value":"5KNSZYDYQMIA","created_at":"2026-05-18T12:30:01Z"},{"alias_kind":"pith_short_16","alias_value":"5KNSZYDYQMIAIKDU","created_at":"2026-05-18T12:30:01Z"},{"alias_kind":"pith_short_8","alias_value":"5KNSZYDY","created_at":"2026-05-18T12:30:01Z"}],"events":[{"event_type":"record_created","subject_pith_number":"pith:2016:5KNSZYDYQMIAIKDUF2NW5HTKNN","target":"record","payload":{"canonical_record":{"source":{"id":"1605.01955","kind":"arxiv","version":2},"metadata":{"license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"astro-ph.EP","submitted_at":"2016-05-06T14:34:03Z","cross_cats_sorted":["astro-ph.SR"],"title_canon_sha256":"2582edd9f37bce5daf80c7466bc2ca98c8b73ab733f29b6110a25debf450cf2d","abstract_canon_sha256":"f1bf70db2215e20e0343f55934cafaf3ffe864d3fde6b870dd15fc795895772b"},"schema_version":"1.0"},"canonical_sha256":"ea9b2ce07883100428742e9b6e9e6a6b58d99c467eb4c92e6b03d65b13ca7808","receipt":{"kind":"pith_receipt","key_id":"pith-v1-2026-05","algorithm":"ed25519","signed_at":"2026-05-18T01:11:30.717616Z","signature_b64":"QmKED3kiDPzxkLGIT70VIVfjqfXSerA21Yhtos84vIs6knL70O98zvSYuAksGBY8+Z1nsgMTTHDiNxVk75EbAQ==","signed_message":"canonical_sha256_bytes","builder_version":"pith-number-builder-2026-05-17-v1","receipt_version":"0.3","canonical_sha256":"ea9b2ce07883100428742e9b6e9e6a6b58d99c467eb4c92e6b03d65b13ca7808","last_reissued_at":"2026-05-18T01:11:30.717248Z","signature_status":"signed_v1","first_computed_at":"2026-05-18T01:11:30.717248Z","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54"},"source_kind":"arxiv","source_id":"1605.01955","source_version":2,"attestation_state":"computed"},"signer":{"signer_id":"pith.science","signer_type":"pith_registry","key_id":"pith-v1-2026-05","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54"},"created_at":"2026-05-18T01:11:30Z","supersedes":[],"prev_event":null,"signature":{"signature_status":"signed_v1","algorithm":"ed25519","key_id":"pith-v1-2026-05","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54","signature_b64":"HvZteMujHCJ7LYpbZuZSxN6WdfwjtakvZ7iwxgD5euyId0o4NJw43fBwGWiaEckGfHvndRXk5AqkWCLbE2+6Dw==","signed_message":"open_graph_event_sha256_bytes","signed_at":"2026-05-29T14:59:59.374011Z"},"content_sha256":"4246853e99193f5451b816e4e0ce6556f297501c0202ed7e8bf1e42b322b5e04","schema_version":"1.0","event_id":"sha256:4246853e99193f5451b816e4e0ce6556f297501c0202ed7e8bf1e42b322b5e04"},{"event_type":"graph_snapshot","subject_pith_number":"pith:2016:5KNSZYDYQMIAIKDUF2NW5HTKNN","target":"graph","payload":{"graph_snapshot":{"paper":{"title":"Variation in the pre-transit Balmer line signal around the hot Jupiter HD 189733 b","license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","headline":"","cross_cats":["astro-ph.SR"],"primary_cat":"astro-ph.EP","authors_text":"Adam G. Jensen, P. Wilson Cauley, Seth Redfield, Travis Barman","submitted_at":"2016-05-06T14:34:03Z","abstract_excerpt":"As followup to our recent detection of a pre-transit signal around HD 189733 b, we obtained full pre-transit phase coverage of a single planetary transit. The pre-transit signal is again detected in the Balmer lines but with variable strength and timing, suggesting that the bow shock geometry reported in our previous work does not describe the signal from the latest transit. We also demonstrate the use of the Ca II H and K residual core flux as a proxy for the stellar activity level throughout the transit. A moderate trend is found between the pre-transit absorption signal in the 2013 data and"},"claims":{"count":0,"items":[],"snapshot_sha256":"258153158e38e3291e3d48162225fcdb2d5a3ed65a07baac614ab91432fd4f57"},"source":{"id":"1605.01955","kind":"arxiv","version":2},"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":"2026-05-18T01:11:30Z","supersedes":[],"prev_event":null,"signature":{"signature_status":"signed_v1","algorithm":"ed25519","key_id":"pith-v1-2026-05","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54","signature_b64":"puscYRIVnU3KHl3WoQFlY5qHYAaPchmVqTbmav5jwoQgVj0IjXV+t37hTall5StgZgYXgAxizTUG18/TQTHGCg==","signed_message":"open_graph_event_sha256_bytes","signed_at":"2026-05-29T14:59:59.374409Z"},"content_sha256":"668a386c20f88b1b7fb4f09ab7a5c36b6a459b137c80e735c1c1e98950243fa2","schema_version":"1.0","event_id":"sha256:668a386c20f88b1b7fb4f09ab7a5c36b6a459b137c80e735c1c1e98950243fa2"}],"timestamp_proofs":[],"mirror_hints":[{"mirror_type":"https","name":"Pith Resolver","base_url":"https://pith.science","bundle_url":"https://pith.science/pith/5KNSZYDYQMIAIKDUF2NW5HTKNN/bundle.json","state_url":"https://pith.science/pith/5KNSZYDYQMIAIKDUF2NW5HTKNN/state.json","well_known_bundle_url":"https://pith.science/.well-known/pith/5KNSZYDYQMIAIKDUF2NW5HTKNN/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":"2026-05-29T14:59:59Z","links":{"resolver":"https://pith.science/pith/5KNSZYDYQMIAIKDUF2NW5HTKNN","bundle":"https://pith.science/pith/5KNSZYDYQMIAIKDUF2NW5HTKNN/bundle.json","state":"https://pith.science/pith/5KNSZYDYQMIAIKDUF2NW5HTKNN/state.json","well_known_bundle":"https://pith.science/.well-known/pith/5KNSZYDYQMIAIKDUF2NW5HTKNN/bundle.json"},"state":{"state_type":"pith_open_graph_state","state_version":"1.0","pith_number":"pith:2016:5KNSZYDYQMIAIKDUF2NW5HTKNN","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":"f1bf70db2215e20e0343f55934cafaf3ffe864d3fde6b870dd15fc795895772b","cross_cats_sorted":["astro-ph.SR"],"license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"astro-ph.EP","submitted_at":"2016-05-06T14:34:03Z","title_canon_sha256":"2582edd9f37bce5daf80c7466bc2ca98c8b73ab733f29b6110a25debf450cf2d"},"schema_version":"1.0","source":{"id":"1605.01955","kind":"arxiv","version":2}},"source_aliases":[{"alias_kind":"arxiv","alias_value":"1605.01955","created_at":"2026-05-18T01:11:30Z"},{"alias_kind":"arxiv_version","alias_value":"1605.01955v2","created_at":"2026-05-18T01:11:30Z"},{"alias_kind":"doi","alias_value":"10.48550/arxiv.1605.01955","created_at":"2026-05-18T01:11:30Z"},{"alias_kind":"pith_short_12","alias_value":"5KNSZYDYQMIA","created_at":"2026-05-18T12:30:01Z"},{"alias_kind":"pith_short_16","alias_value":"5KNSZYDYQMIAIKDU","created_at":"2026-05-18T12:30:01Z"},{"alias_kind":"pith_short_8","alias_value":"5KNSZYDY","created_at":"2026-05-18T12:30:01Z"}],"graph_snapshots":[{"event_id":"sha256:668a386c20f88b1b7fb4f09ab7a5c36b6a459b137c80e735c1c1e98950243fa2","target":"graph","created_at":"2026-05-18T01:11:30Z","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":"As followup to our recent detection of a pre-transit signal around HD 189733 b, we obtained full pre-transit phase coverage of a single planetary transit. The pre-transit signal is again detected in the Balmer lines but with variable strength and timing, suggesting that the bow shock geometry reported in our previous work does not describe the signal from the latest transit. We also demonstrate the use of the Ca II H and K residual core flux as a proxy for the stellar activity level throughout the transit. A moderate trend is found between the pre-transit absorption signal in the 2013 data and","authors_text":"Adam G. Jensen, P. Wilson Cauley, Seth Redfield, Travis Barman","cross_cats":["astro-ph.SR"],"headline":"","license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"astro-ph.EP","submitted_at":"2016-05-06T14:34:03Z","title":"Variation in the pre-transit Balmer line signal around the hot Jupiter HD 189733 b"},"references":{"count":0,"internal_anchors":0,"resolved_work":0,"sample":[],"snapshot_sha256":"258153158e38e3291e3d48162225fcdb2d5a3ed65a07baac614ab91432fd4f57"},"source":{"id":"1605.01955","kind":"arxiv","version":2},"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":"sha256:4246853e99193f5451b816e4e0ce6556f297501c0202ed7e8bf1e42b322b5e04","target":"record","created_at":"2026-05-18T01:11:30Z","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":"f1bf70db2215e20e0343f55934cafaf3ffe864d3fde6b870dd15fc795895772b","cross_cats_sorted":["astro-ph.SR"],"license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"astro-ph.EP","submitted_at":"2016-05-06T14:34:03Z","title_canon_sha256":"2582edd9f37bce5daf80c7466bc2ca98c8b73ab733f29b6110a25debf450cf2d"},"schema_version":"1.0","source":{"id":"1605.01955","kind":"arxiv","version":2}},"canonical_sha256":"ea9b2ce07883100428742e9b6e9e6a6b58d99c467eb4c92e6b03d65b13ca7808","receipt":{"algorithm":"ed25519","builder_version":"pith-number-builder-2026-05-17-v1","canonical_sha256":"ea9b2ce07883100428742e9b6e9e6a6b58d99c467eb4c92e6b03d65b13ca7808","first_computed_at":"2026-05-18T01:11:30.717248Z","key_id":"pith-v1-2026-05","kind":"pith_receipt","last_reissued_at":"2026-05-18T01:11:30.717248Z","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54","receipt_version":"0.3","signature_b64":"QmKED3kiDPzxkLGIT70VIVfjqfXSerA21Yhtos84vIs6knL70O98zvSYuAksGBY8+Z1nsgMTTHDiNxVk75EbAQ==","signature_status":"signed_v1","signed_at":"2026-05-18T01:11:30.717616Z","signed_message":"canonical_sha256_bytes"},"source_id":"1605.01955","source_kind":"arxiv","source_version":2}}},"equivocations":[],"invalid_events":[],"applied_event_ids":["sha256:4246853e99193f5451b816e4e0ce6556f297501c0202ed7e8bf1e42b322b5e04","sha256:668a386c20f88b1b7fb4f09ab7a5c36b6a459b137c80e735c1c1e98950243fa2"],"state_sha256":"d40c9850d50ec6e0904b7960db8289782a1d77d558dd5633a63e5a16d5d23225"},"bundle_signature":{"signature_status":"signed_v1","algorithm":"ed25519","key_id":"pith-v1-2026-05","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54","signature_b64":"joy9bfWjkX/0PTMOx7am5Ikv2JBW4L0qADIecsd+xyuz7piEgikfnthRWyJA1WxeQez0RWP85h7+gf8/aPLnBQ==","signed_message":"bundle_sha256_bytes","signed_at":"2026-05-29T14:59:59.376995Z","bundle_sha256":"2a8906e8a20ad0248400a09d25adb728b8a56c38323f68bf449066adeabee503"}}