{"bundle_type":"pith_open_graph_bundle","bundle_version":"1.0","pith_number":"pith:2020:NHALEFXJOZ5GCYFXC56Q34WVNM","short_pith_number":"pith:NHALEFXJ","canonical_record":{"source":{"id":"2004.11335","kind":"arxiv","version":1},"metadata":{"license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"astro-ph.EP","submitted_at":"2020-04-23T17:31:08Z","cross_cats_sorted":["astro-ph.IM","astro-ph.SR"],"title_canon_sha256":"e060ab0521d5b09a783703953f8793d2a71581ab0e5195ea97d07a944f06e72a","abstract_canon_sha256":"e5a45c4879c9358501db1a87115d55003a8cc1aed07c1ffc28ba5315b632b9b0"},"schema_version":"1.0"},"canonical_sha256":"69c0b216e9767a6160b7177d0df2d56b34ca60ee12dd993b9dafba0fe2a0245c","source":{"kind":"arxiv","id":"2004.11335","version":1},"source_aliases":[{"alias_kind":"arxiv","alias_value":"2004.11335","created_at":"2026-07-05T01:04:23Z"},{"alias_kind":"arxiv_version","alias_value":"2004.11335v1","created_at":"2026-07-05T01:04:23Z"},{"alias_kind":"doi","alias_value":"10.48550/arxiv.2004.11335","created_at":"2026-07-05T01:04:23Z"},{"alias_kind":"pith_short_12","alias_value":"NHALEFXJOZ5G","created_at":"2026-07-05T01:04:23Z"},{"alias_kind":"pith_short_16","alias_value":"NHALEFXJOZ5GCYFX","created_at":"2026-07-05T01:04:23Z"},{"alias_kind":"pith_short_8","alias_value":"NHALEFXJ","created_at":"2026-07-05T01:04:23Z"}],"events":[{"event_type":"record_created","subject_pith_number":"pith:2020:NHALEFXJOZ5GCYFXC56Q34WVNM","target":"record","payload":{"canonical_record":{"source":{"id":"2004.11335","kind":"arxiv","version":1},"metadata":{"license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"astro-ph.EP","submitted_at":"2020-04-23T17:31:08Z","cross_cats_sorted":["astro-ph.IM","astro-ph.SR"],"title_canon_sha256":"e060ab0521d5b09a783703953f8793d2a71581ab0e5195ea97d07a944f06e72a","abstract_canon_sha256":"e5a45c4879c9358501db1a87115d55003a8cc1aed07c1ffc28ba5315b632b9b0"},"schema_version":"1.0"},"canonical_sha256":"69c0b216e9767a6160b7177d0df2d56b34ca60ee12dd993b9dafba0fe2a0245c","receipt":{"kind":"pith_receipt","key_id":"pith-v1-2026-05","algorithm":"ed25519","signed_at":"2026-07-05T01:04:23.716462Z","signature_b64":"0wqOTlgGxSwbLGelCcLnDD7J0hWryVxa4S+naFSx8ua93nzMPx8tqqHHYbGepBKttT7kvzpmUHoiPiXsdlWgBA==","signed_message":"canonical_sha256_bytes","builder_version":"pith-number-builder-2026-05-17-v1","receipt_version":"0.3","canonical_sha256":"69c0b216e9767a6160b7177d0df2d56b34ca60ee12dd993b9dafba0fe2a0245c","last_reissued_at":"2026-07-05T01:04:23.715978Z","signature_status":"signed_v1","first_computed_at":"2026-07-05T01:04:23.715978Z","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54"},"source_kind":"arxiv","source_id":"2004.11335","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":"2026-07-05T01:04:23Z","supersedes":[],"prev_event":null,"signature":{"signature_status":"signed_v1","algorithm":"ed25519","key_id":"pith-v1-2026-05","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54","signature_b64":"1jxIHLdi2J/BWdtTMb/cBbjT942MxoD5DOKpSRfNktcByCPPRFCEqmkKIVcjr1gk+txkaKR8iv/9aBlhf8tpAA==","signed_message":"open_graph_event_sha256_bytes","signed_at":"2026-07-05T11:44:55.559688Z"},"content_sha256":"ff51376d83692f33cde518a295580f395252d7fd0220b7045c4957a40ad41a0c","schema_version":"1.0","event_id":"sha256:ff51376d83692f33cde518a295580f395252d7fd0220b7045c4957a40ad41a0c"},{"event_type":"graph_snapshot","subject_pith_number":"pith:2020:NHALEFXJOZ5GCYFXC56Q34WVNM","target":"graph","payload":{"graph_snapshot":{"paper":{"title":"Neutral Iron Emission Lines From The Day-side Of KELT-9b -- The GAPS Programme With HARPS-N At TNG XX","license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","headline":"","cross_cats":["astro-ph.IM","astro-ph.SR"],"primary_cat":"astro-ph.EP","authors_text":"A. Bignamini, A. Fiorenzano, A. F. Lanza, A. Harutyunyan, A. Magazz\\`u, A. Maggio, A. S. Bonomo, A. Sozzetti, A. Wyttenbach, B. Lavie, C. Lovis, D. Ehrenreich, D. Nardiello, E. Covino, E. Molinari, E. Poretti, F. Borsa, G. Bruno, G. Frustagli, G. Leto, G. Micela, G. Piotto, G. Scandariato, I. Carleo, I. Pagano, J. Hoeijmakers, J. Maldonado, J.M. D\\'esert, K. Biazzo, L. Affer, L. Borsato, L. Di Fabrizio, L. Fossati, L. Malavolta, L. Mancini, L. Pino, M. Brogi, M. Damasso, M. Line, M. Pedani, M. Rainer, P. Giacobbe, R. Allart, R. Claudi, R. Cosentino, R. Smareglia, S. Benatti, S. Desidera, V. Nascimbeni, V. Panwar","submitted_at":"2020-04-23T17:31:08Z","abstract_excerpt":"We present the first detection of atomic emission lines from the atmosphere of an exoplanet. We detect neutral iron lines from the day-side of KELT-9b (Teq $\\sim$ 4, 000 K). We combined thousands of spectrally resolved lines observed during one night with the HARPS-N spectrograph (R $\\sim$ 115, 000), mounted at the Telescopio Nazionale Galileo. We introduce a novel statistical approach to extract the planetary parameters from the binary mask cross-correlation analysis. We also adapt the concept of contribution function to the context of high spectral resolution observations, to identify the lo"},"claims":{"count":0,"items":[],"snapshot_sha256":"258153158e38e3291e3d48162225fcdb2d5a3ed65a07baac614ab91432fd4f57"},"source":{"id":"2004.11335","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/2004.11335/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":"2026-07-05T01:04:23Z","supersedes":[],"prev_event":null,"signature":{"signature_status":"signed_v1","algorithm":"ed25519","key_id":"pith-v1-2026-05","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54","signature_b64":"yX29d8c14lceEi9lNy7wX1zXuaBlcAh8YYJyjZsVCI5cTXIpKRzibHCrFPMvxVqhGsOqhqAKGKdBkuQ16VW6Dw==","signed_message":"open_graph_event_sha256_bytes","signed_at":"2026-07-05T11:44:55.560185Z"},"content_sha256":"40a93a6da1d8ba83617cc8f85ca21ee64fc75946d51f818218685f9bb3689790","schema_version":"1.0","event_id":"sha256:40a93a6da1d8ba83617cc8f85ca21ee64fc75946d51f818218685f9bb3689790"}],"timestamp_proofs":[],"mirror_hints":[{"mirror_type":"https","name":"Pith Resolver","base_url":"https://pith.science","bundle_url":"https://pith.science/pith/NHALEFXJOZ5GCYFXC56Q34WVNM/bundle.json","state_url":"https://pith.science/pith/NHALEFXJOZ5GCYFXC56Q34WVNM/state.json","well_known_bundle_url":"https://pith.science/.well-known/pith/NHALEFXJOZ5GCYFXC56Q34WVNM/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":"2026-07-05T11:44:55Z","links":{"resolver":"https://pith.science/pith/NHALEFXJOZ5GCYFXC56Q34WVNM","bundle":"https://pith.science/pith/NHALEFXJOZ5GCYFXC56Q34WVNM/bundle.json","state":"https://pith.science/pith/NHALEFXJOZ5GCYFXC56Q34WVNM/state.json","well_known_bundle":"https://pith.science/.well-known/pith/NHALEFXJOZ5GCYFXC56Q34WVNM/bundle.json"},"state":{"state_type":"pith_open_graph_state","state_version":"1.0","pith_number":"pith:2020:NHALEFXJOZ5GCYFXC56Q34WVNM","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":"e5a45c4879c9358501db1a87115d55003a8cc1aed07c1ffc28ba5315b632b9b0","cross_cats_sorted":["astro-ph.IM","astro-ph.SR"],"license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"astro-ph.EP","submitted_at":"2020-04-23T17:31:08Z","title_canon_sha256":"e060ab0521d5b09a783703953f8793d2a71581ab0e5195ea97d07a944f06e72a"},"schema_version":"1.0","source":{"id":"2004.11335","kind":"arxiv","version":1}},"source_aliases":[{"alias_kind":"arxiv","alias_value":"2004.11335","created_at":"2026-07-05T01:04:23Z"},{"alias_kind":"arxiv_version","alias_value":"2004.11335v1","created_at":"2026-07-05T01:04:23Z"},{"alias_kind":"doi","alias_value":"10.48550/arxiv.2004.11335","created_at":"2026-07-05T01:04:23Z"},{"alias_kind":"pith_short_12","alias_value":"NHALEFXJOZ5G","created_at":"2026-07-05T01:04:23Z"},{"alias_kind":"pith_short_16","alias_value":"NHALEFXJOZ5GCYFX","created_at":"2026-07-05T01:04:23Z"},{"alias_kind":"pith_short_8","alias_value":"NHALEFXJ","created_at":"2026-07-05T01:04:23Z"}],"graph_snapshots":[{"event_id":"sha256:40a93a6da1d8ba83617cc8f85ca21ee64fc75946d51f818218685f9bb3689790","target":"graph","created_at":"2026-07-05T01:04:23Z","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/2004.11335/integrity.json","findings":[],"snapshot_sha256":"c28c3603d3b5d939e8dc4c7e95fa8dfce3d595e45f758748cecf8e644a296938","summary":{"advisory":0,"by_detector":{},"critical":0,"informational":0}},"paper":{"abstract_excerpt":"We present the first detection of atomic emission lines from the atmosphere of an exoplanet. We detect neutral iron lines from the day-side of KELT-9b (Teq $\\sim$ 4, 000 K). We combined thousands of spectrally resolved lines observed during one night with the HARPS-N spectrograph (R $\\sim$ 115, 000), mounted at the Telescopio Nazionale Galileo. We introduce a novel statistical approach to extract the planetary parameters from the binary mask cross-correlation analysis. We also adapt the concept of contribution function to the context of high spectral resolution observations, to identify the lo","authors_text":"A. Bignamini, A. Fiorenzano, A. F. Lanza, A. Harutyunyan, A. Magazz\\`u, A. Maggio, A. S. Bonomo, A. Sozzetti, A. Wyttenbach, B. Lavie, C. Lovis, D. Ehrenreich, D. Nardiello, E. Covino, E. Molinari, E. Poretti, F. Borsa, G. Bruno, G. Frustagli, G. Leto, G. Micela, G. Piotto, G. Scandariato, I. Carleo, I. Pagano, J. Hoeijmakers, J. Maldonado, J.M. D\\'esert, K. Biazzo, L. Affer, L. Borsato, L. Di Fabrizio, L. Fossati, L. Malavolta, L. Mancini, L. Pino, M. Brogi, M. Damasso, M. Line, M. Pedani, M. Rainer, P. Giacobbe, R. Allart, R. Claudi, R. Cosentino, R. Smareglia, S. Benatti, S. Desidera, V. Nascimbeni, V. Panwar","cross_cats":["astro-ph.IM","astro-ph.SR"],"headline":"","license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"astro-ph.EP","submitted_at":"2020-04-23T17:31:08Z","title":"Neutral Iron Emission Lines From The Day-side Of KELT-9b -- The GAPS Programme With HARPS-N At TNG XX"},"references":{"count":0,"internal_anchors":0,"resolved_work":0,"sample":[],"snapshot_sha256":"258153158e38e3291e3d48162225fcdb2d5a3ed65a07baac614ab91432fd4f57"},"source":{"id":"2004.11335","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:ff51376d83692f33cde518a295580f395252d7fd0220b7045c4957a40ad41a0c","target":"record","created_at":"2026-07-05T01:04:23Z","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":"e5a45c4879c9358501db1a87115d55003a8cc1aed07c1ffc28ba5315b632b9b0","cross_cats_sorted":["astro-ph.IM","astro-ph.SR"],"license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"astro-ph.EP","submitted_at":"2020-04-23T17:31:08Z","title_canon_sha256":"e060ab0521d5b09a783703953f8793d2a71581ab0e5195ea97d07a944f06e72a"},"schema_version":"1.0","source":{"id":"2004.11335","kind":"arxiv","version":1}},"canonical_sha256":"69c0b216e9767a6160b7177d0df2d56b34ca60ee12dd993b9dafba0fe2a0245c","receipt":{"algorithm":"ed25519","builder_version":"pith-number-builder-2026-05-17-v1","canonical_sha256":"69c0b216e9767a6160b7177d0df2d56b34ca60ee12dd993b9dafba0fe2a0245c","first_computed_at":"2026-07-05T01:04:23.715978Z","key_id":"pith-v1-2026-05","kind":"pith_receipt","last_reissued_at":"2026-07-05T01:04:23.715978Z","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54","receipt_version":"0.3","signature_b64":"0wqOTlgGxSwbLGelCcLnDD7J0hWryVxa4S+naFSx8ua93nzMPx8tqqHHYbGepBKttT7kvzpmUHoiPiXsdlWgBA==","signature_status":"signed_v1","signed_at":"2026-07-05T01:04:23.716462Z","signed_message":"canonical_sha256_bytes"},"source_id":"2004.11335","source_kind":"arxiv","source_version":1}}},"equivocations":[],"invalid_events":[],"applied_event_ids":["sha256:ff51376d83692f33cde518a295580f395252d7fd0220b7045c4957a40ad41a0c","sha256:40a93a6da1d8ba83617cc8f85ca21ee64fc75946d51f818218685f9bb3689790"],"state_sha256":"b83d75eaddbe2d834956e1eb3cc95524122faa13eb672d319fdf48d2109964ec"},"bundle_signature":{"signature_status":"signed_v1","algorithm":"ed25519","key_id":"pith-v1-2026-05","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54","signature_b64":"mk3kBQgDMx64578o23ROxXsaqd7j5qhK2Ow83pUROm3KOWuoX7Q8zNq+D0qcXd8UreoMKIIVwnIXd6aauE8cBQ==","signed_message":"bundle_sha256_bytes","signed_at":"2026-07-05T11:44:55.562275Z","bundle_sha256":"0faf15553e070114a0ac057e596efc6cbf4386f795a2ec7fff9bfcc353fbca05"}}