{"bundle_type":"pith_open_graph_bundle","bundle_version":"1.0","pith_number":"pith:2017:TU762PFNMR6NMKKYI7SQR255HZ","short_pith_number":"pith:TU762PFN","canonical_record":{"source":{"id":"1710.04185","kind":"arxiv","version":1},"metadata":{"license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"astro-ph.EP","submitted_at":"2017-10-11T17:27:24Z","cross_cats_sorted":[],"title_canon_sha256":"225febecde8d16aa9ed737db20d9df9c2ebc1a821cd62dbb8d9493732e1a9794","abstract_canon_sha256":"1dff39a7ba89aca93ebdabb422f833ff80a1ef85df88fc46c4c17c1fb61b5b95"},"schema_version":"1.0"},"canonical_sha256":"9d3fed3cad647cd6295847e508ebbd3e4dddc58c205a96edc7702dd5496c1d7d","source":{"kind":"arxiv","id":"1710.04185","version":1},"source_aliases":[{"alias_kind":"arxiv","alias_value":"1710.04185","created_at":"2026-05-18T00:28:52Z"},{"alias_kind":"arxiv_version","alias_value":"1710.04185v1","created_at":"2026-05-18T00:28:52Z"},{"alias_kind":"doi","alias_value":"10.48550/arxiv.1710.04185","created_at":"2026-05-18T00:28:52Z"},{"alias_kind":"pith_short_12","alias_value":"TU762PFNMR6N","created_at":"2026-05-18T12:31:46Z"},{"alias_kind":"pith_short_16","alias_value":"TU762PFNMR6NMKKY","created_at":"2026-05-18T12:31:46Z"},{"alias_kind":"pith_short_8","alias_value":"TU762PFN","created_at":"2026-05-18T12:31:46Z"}],"events":[{"event_type":"record_created","subject_pith_number":"pith:2017:TU762PFNMR6NMKKYI7SQR255HZ","target":"record","payload":{"canonical_record":{"source":{"id":"1710.04185","kind":"arxiv","version":1},"metadata":{"license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"astro-ph.EP","submitted_at":"2017-10-11T17:27:24Z","cross_cats_sorted":[],"title_canon_sha256":"225febecde8d16aa9ed737db20d9df9c2ebc1a821cd62dbb8d9493732e1a9794","abstract_canon_sha256":"1dff39a7ba89aca93ebdabb422f833ff80a1ef85df88fc46c4c17c1fb61b5b95"},"schema_version":"1.0"},"canonical_sha256":"9d3fed3cad647cd6295847e508ebbd3e4dddc58c205a96edc7702dd5496c1d7d","receipt":{"kind":"pith_receipt","key_id":"pith-v1-2026-05","algorithm":"ed25519","signed_at":"2026-05-18T00:28:52.281893Z","signature_b64":"IuoKbimnX/F98ks5nN9R0CGeGd/AUq0osLcDWqcILu24vZQIhYLY49ywc5X0elL/m4BgEUVuAFgG94qcZWqLAw==","signed_message":"canonical_sha256_bytes","builder_version":"pith-number-builder-2026-05-17-v1","receipt_version":"0.3","canonical_sha256":"9d3fed3cad647cd6295847e508ebbd3e4dddc58c205a96edc7702dd5496c1d7d","last_reissued_at":"2026-05-18T00:28:52.281240Z","signature_status":"signed_v1","first_computed_at":"2026-05-18T00:28:52.281240Z","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54"},"source_kind":"arxiv","source_id":"1710.04185","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":"2026-05-18T00:28:52Z","supersedes":[],"prev_event":null,"signature":{"signature_status":"signed_v1","algorithm":"ed25519","key_id":"pith-v1-2026-05","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54","signature_b64":"8gPUuyWwK8z58qEB8Sd/kjol7+aapru0xjves+FHf0Oc/KKpdhe2dL7l0DJu8maJMgj3TS3BBWoCW/8DJSadDg==","signed_message":"open_graph_event_sha256_bytes","signed_at":"2026-05-26T03:02:44.573230Z"},"content_sha256":"ecad8c90bcad7fb78ae82c6902619ef91b67dd0cf3d4383c547afe889e052c2e","schema_version":"1.0","event_id":"sha256:ecad8c90bcad7fb78ae82c6902619ef91b67dd0cf3d4383c547afe889e052c2e"},{"event_type":"graph_snapshot","subject_pith_number":"pith:2017:TU762PFNMR6NMKKYI7SQR255HZ","target":"graph","payload":{"graph_snapshot":{"paper":{"title":"A Direct Imaging Survey of Spitzer detected debris disks: Occurrence of giant planets in dusty systems","license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","headline":"","cross_cats":[],"primary_cat":"astro-ph.EP","authors_text":"Brendan P. Bowler, Deborah Padgett, Dimitri Mawet, Eugene Serabyn, Farisa Y. Morales, Karl R. Stapelfeldt, Konstantin Batygin, Marta Bryan, Sasha Hinkley, Tiffany Meshkat, Timothy D. Brandt, Valentin Christiaens, Zahed Wahhaj","submitted_at":"2017-10-11T17:27:24Z","abstract_excerpt":"We describe a joint high contrast imaging survey for planets at Keck and VLT of the last large sample of debris disks identified by the Spitzer Space Telescope. No new substellar companions were discovered in our survey of 30 Spitzer-selected targets. We combine our observations with data from four published surveys to place constraints on the frequency of planets around 130 debris disk single stars, the largest sample to date. For a control sample, we assembled contrast curves from several published surveys targeting 277 stars which do not show infrared excesses. We assumed a double power law"},"claims":{"count":0,"items":[],"snapshot_sha256":"258153158e38e3291e3d48162225fcdb2d5a3ed65a07baac614ab91432fd4f57"},"source":{"id":"1710.04185","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":"2026-05-18T00:28:52Z","supersedes":[],"prev_event":null,"signature":{"signature_status":"signed_v1","algorithm":"ed25519","key_id":"pith-v1-2026-05","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54","signature_b64":"OOe8DpqQ85nCqcUfvAo1I3wetjOsF6vl8B8EicVnERLVqkHflAWkEsR2t5VWmcQ/HHI4D37TzQ/5kifNztKtDg==","signed_message":"open_graph_event_sha256_bytes","signed_at":"2026-05-26T03:02:44.573762Z"},"content_sha256":"491190d78200744390a0d9a584d1e4a5aa14e50ccf272b08e3254d0ad81d37b1","schema_version":"1.0","event_id":"sha256:491190d78200744390a0d9a584d1e4a5aa14e50ccf272b08e3254d0ad81d37b1"}],"timestamp_proofs":[],"mirror_hints":[{"mirror_type":"https","name":"Pith Resolver","base_url":"https://pith.science","bundle_url":"https://pith.science/pith/TU762PFNMR6NMKKYI7SQR255HZ/bundle.json","state_url":"https://pith.science/pith/TU762PFNMR6NMKKYI7SQR255HZ/state.json","well_known_bundle_url":"https://pith.science/.well-known/pith/TU762PFNMR6NMKKYI7SQR255HZ/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":"2026-05-26T03:02:44Z","links":{"resolver":"https://pith.science/pith/TU762PFNMR6NMKKYI7SQR255HZ","bundle":"https://pith.science/pith/TU762PFNMR6NMKKYI7SQR255HZ/bundle.json","state":"https://pith.science/pith/TU762PFNMR6NMKKYI7SQR255HZ/state.json","well_known_bundle":"https://pith.science/.well-known/pith/TU762PFNMR6NMKKYI7SQR255HZ/bundle.json"},"state":{"state_type":"pith_open_graph_state","state_version":"1.0","pith_number":"pith:2017:TU762PFNMR6NMKKYI7SQR255HZ","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":"1dff39a7ba89aca93ebdabb422f833ff80a1ef85df88fc46c4c17c1fb61b5b95","cross_cats_sorted":[],"license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"astro-ph.EP","submitted_at":"2017-10-11T17:27:24Z","title_canon_sha256":"225febecde8d16aa9ed737db20d9df9c2ebc1a821cd62dbb8d9493732e1a9794"},"schema_version":"1.0","source":{"id":"1710.04185","kind":"arxiv","version":1}},"source_aliases":[{"alias_kind":"arxiv","alias_value":"1710.04185","created_at":"2026-05-18T00:28:52Z"},{"alias_kind":"arxiv_version","alias_value":"1710.04185v1","created_at":"2026-05-18T00:28:52Z"},{"alias_kind":"doi","alias_value":"10.48550/arxiv.1710.04185","created_at":"2026-05-18T00:28:52Z"},{"alias_kind":"pith_short_12","alias_value":"TU762PFNMR6N","created_at":"2026-05-18T12:31:46Z"},{"alias_kind":"pith_short_16","alias_value":"TU762PFNMR6NMKKY","created_at":"2026-05-18T12:31:46Z"},{"alias_kind":"pith_short_8","alias_value":"TU762PFN","created_at":"2026-05-18T12:31:46Z"}],"graph_snapshots":[{"event_id":"sha256:491190d78200744390a0d9a584d1e4a5aa14e50ccf272b08e3254d0ad81d37b1","target":"graph","created_at":"2026-05-18T00:28:52Z","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 describe a joint high contrast imaging survey for planets at Keck and VLT of the last large sample of debris disks identified by the Spitzer Space Telescope. No new substellar companions were discovered in our survey of 30 Spitzer-selected targets. We combine our observations with data from four published surveys to place constraints on the frequency of planets around 130 debris disk single stars, the largest sample to date. For a control sample, we assembled contrast curves from several published surveys targeting 277 stars which do not show infrared excesses. We assumed a double power law","authors_text":"Brendan P. Bowler, Deborah Padgett, Dimitri Mawet, Eugene Serabyn, Farisa Y. Morales, Karl R. Stapelfeldt, Konstantin Batygin, Marta Bryan, Sasha Hinkley, Tiffany Meshkat, Timothy D. Brandt, Valentin Christiaens, Zahed Wahhaj","cross_cats":[],"headline":"","license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"astro-ph.EP","submitted_at":"2017-10-11T17:27:24Z","title":"A Direct Imaging Survey of Spitzer detected debris disks: Occurrence of giant planets in dusty systems"},"references":{"count":0,"internal_anchors":0,"resolved_work":0,"sample":[],"snapshot_sha256":"258153158e38e3291e3d48162225fcdb2d5a3ed65a07baac614ab91432fd4f57"},"source":{"id":"1710.04185","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:ecad8c90bcad7fb78ae82c6902619ef91b67dd0cf3d4383c547afe889e052c2e","target":"record","created_at":"2026-05-18T00:28:52Z","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":"1dff39a7ba89aca93ebdabb422f833ff80a1ef85df88fc46c4c17c1fb61b5b95","cross_cats_sorted":[],"license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"astro-ph.EP","submitted_at":"2017-10-11T17:27:24Z","title_canon_sha256":"225febecde8d16aa9ed737db20d9df9c2ebc1a821cd62dbb8d9493732e1a9794"},"schema_version":"1.0","source":{"id":"1710.04185","kind":"arxiv","version":1}},"canonical_sha256":"9d3fed3cad647cd6295847e508ebbd3e4dddc58c205a96edc7702dd5496c1d7d","receipt":{"algorithm":"ed25519","builder_version":"pith-number-builder-2026-05-17-v1","canonical_sha256":"9d3fed3cad647cd6295847e508ebbd3e4dddc58c205a96edc7702dd5496c1d7d","first_computed_at":"2026-05-18T00:28:52.281240Z","key_id":"pith-v1-2026-05","kind":"pith_receipt","last_reissued_at":"2026-05-18T00:28:52.281240Z","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54","receipt_version":"0.3","signature_b64":"IuoKbimnX/F98ks5nN9R0CGeGd/AUq0osLcDWqcILu24vZQIhYLY49ywc5X0elL/m4BgEUVuAFgG94qcZWqLAw==","signature_status":"signed_v1","signed_at":"2026-05-18T00:28:52.281893Z","signed_message":"canonical_sha256_bytes"},"source_id":"1710.04185","source_kind":"arxiv","source_version":1}}},"equivocations":[],"invalid_events":[],"applied_event_ids":["sha256:ecad8c90bcad7fb78ae82c6902619ef91b67dd0cf3d4383c547afe889e052c2e","sha256:491190d78200744390a0d9a584d1e4a5aa14e50ccf272b08e3254d0ad81d37b1"],"state_sha256":"5d4a278193cee18cfccec5b2a13f42c1e62f95a4dfe3c9c26405c5f4f6835895"},"bundle_signature":{"signature_status":"signed_v1","algorithm":"ed25519","key_id":"pith-v1-2026-05","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54","signature_b64":"IDNfDCjXKHfa0iAV7UVgMWb8T1/0qk48sxsbeR09G1/OYsYY8YBLKq4i6jJSLPHXoTwhUekmzAWkUhIuHwe5Bg==","signed_message":"bundle_sha256_bytes","signed_at":"2026-05-26T03:02:44.576701Z","bundle_sha256":"2ad9b2d60d8b702af375c481458eb2f915c4ee40b65ffec69405426f307b3a29"}}