{"bundle_type":"pith_open_graph_bundle","bundle_version":"1.0","pith_number":"pith:2018:7DDWZFYMRXYKKEAN4PYQRXQQHW","short_pith_number":"pith:7DDWZFYM","canonical_record":{"source":{"id":"1805.10671","kind":"arxiv","version":1},"metadata":{"license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"astro-ph.EP","submitted_at":"2018-05-27T18:13:26Z","cross_cats_sorted":[],"title_canon_sha256":"d79f1500dcfd58e3af9a4f5ac36fa19bcfa567c98ce35e3d691175a1e3b5c5de","abstract_canon_sha256":"b6c3cd1aea512b828c8857733bd39c2691f9c0956103d7910b3d0028d89dc1a3"},"schema_version":"1.0"},"canonical_sha256":"f8c76c970c8df0a5100de3f108de103dbb5337f0658d636c429c3c61583c7502","source":{"kind":"arxiv","id":"1805.10671","version":1},"source_aliases":[{"alias_kind":"arxiv","alias_value":"1805.10671","created_at":"2026-05-18T00:14:51Z"},{"alias_kind":"arxiv_version","alias_value":"1805.10671v1","created_at":"2026-05-18T00:14:51Z"},{"alias_kind":"doi","alias_value":"10.48550/arxiv.1805.10671","created_at":"2026-05-18T00:14:51Z"},{"alias_kind":"pith_short_12","alias_value":"7DDWZFYMRXYK","created_at":"2026-05-18T12:32:11Z"},{"alias_kind":"pith_short_16","alias_value":"7DDWZFYMRXYKKEAN","created_at":"2026-05-18T12:32:11Z"},{"alias_kind":"pith_short_8","alias_value":"7DDWZFYM","created_at":"2026-05-18T12:32:11Z"}],"events":[{"event_type":"record_created","subject_pith_number":"pith:2018:7DDWZFYMRXYKKEAN4PYQRXQQHW","target":"record","payload":{"canonical_record":{"source":{"id":"1805.10671","kind":"arxiv","version":1},"metadata":{"license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"astro-ph.EP","submitted_at":"2018-05-27T18:13:26Z","cross_cats_sorted":[],"title_canon_sha256":"d79f1500dcfd58e3af9a4f5ac36fa19bcfa567c98ce35e3d691175a1e3b5c5de","abstract_canon_sha256":"b6c3cd1aea512b828c8857733bd39c2691f9c0956103d7910b3d0028d89dc1a3"},"schema_version":"1.0"},"canonical_sha256":"f8c76c970c8df0a5100de3f108de103dbb5337f0658d636c429c3c61583c7502","receipt":{"kind":"pith_receipt","key_id":"pith-v1-2026-05","algorithm":"ed25519","signed_at":"2026-05-18T00:14:51.767792Z","signature_b64":"8TgIkWoQTEqBe8HCEsjQcTxnf/KSp4RLyV/7I7eLG9rA0JF0SDunPtCq13IM9+dqtGjtrVm5crnuh5jlvz3oAw==","signed_message":"canonical_sha256_bytes","builder_version":"pith-number-builder-2026-05-17-v1","receipt_version":"0.3","canonical_sha256":"f8c76c970c8df0a5100de3f108de103dbb5337f0658d636c429c3c61583c7502","last_reissued_at":"2026-05-18T00:14:51.767108Z","signature_status":"signed_v1","first_computed_at":"2026-05-18T00:14:51.767108Z","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54"},"source_kind":"arxiv","source_id":"1805.10671","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":"2026-05-18T00:14:51Z","supersedes":[],"prev_event":null,"signature":{"signature_status":"signed_v1","algorithm":"ed25519","key_id":"pith-v1-2026-05","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54","signature_b64":"p59DAP/tri14i15759QVdDYdRbZI2Xu78uqy1TyTy1731lWoJGv6IsZxZ1feIOxopYOsnKwpueH88UYm2SQkBw==","signed_message":"open_graph_event_sha256_bytes","signed_at":"2026-06-08T21:59:34.332772Z"},"content_sha256":"4a7e09c0abd54b49afa11636f42d152db877d5a585effe48a835eafc82fe4560","schema_version":"1.0","event_id":"sha256:4a7e09c0abd54b49afa11636f42d152db877d5a585effe48a835eafc82fe4560"},{"event_type":"graph_snapshot","subject_pith_number":"pith:2018:7DDWZFYMRXYKKEAN4PYQRXQQHW","target":"graph","payload":{"graph_snapshot":{"paper":{"title":"Non-Detection of a Helium Exosphere for the Hot Jupiter WASP-12b","license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","headline":"","cross_cats":[],"primary_cat":"astro-ph.EP","authors_text":"Antonija Oklop\\v{c}i\\'c, Laura Kreidberg","submitted_at":"2018-05-27T18:13:26Z","abstract_excerpt":"An exosphere was recently detected around the exoplanet WASP-107b, a low-density, warm Neptune, based on an absorption feature from metastable helium (which has a vacuum wavelength of 10833 \\AA). Inspired by the WASP-107b detection, we reanalyzed archival HST observations of another evaporating exoplanet, WASP-12b, to search for signs of helium in its exosphere. We find no significant increase in transit depth at 10833 \\AA. We compare this result to theoretical predictions from a 1D model, and find that the expected helium feature amplitude is small, in agreement with the observed non-detectio"},"claims":{"count":0,"items":[],"snapshot_sha256":"258153158e38e3291e3d48162225fcdb2d5a3ed65a07baac614ab91432fd4f57"},"source":{"id":"1805.10671","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":"2026-05-18T00:14:51Z","supersedes":[],"prev_event":null,"signature":{"signature_status":"signed_v1","algorithm":"ed25519","key_id":"pith-v1-2026-05","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54","signature_b64":"VTWTkJ3c7ZV0RzShVAN1TCWxO0UEx5rxasFWrczarGFEHH1ATwhaNsYZZDua5bsYKgaDgSrpX+mPsrkr6moSCQ==","signed_message":"open_graph_event_sha256_bytes","signed_at":"2026-06-08T21:59:34.333123Z"},"content_sha256":"bed8703ec05a0b19dd77a0435b66d25e7df2dded45b3b92b6e6b783caeb30ef7","schema_version":"1.0","event_id":"sha256:bed8703ec05a0b19dd77a0435b66d25e7df2dded45b3b92b6e6b783caeb30ef7"}],"timestamp_proofs":[],"mirror_hints":[{"mirror_type":"https","name":"Pith Resolver","base_url":"https://pith.science","bundle_url":"https://pith.science/pith/7DDWZFYMRXYKKEAN4PYQRXQQHW/bundle.json","state_url":"https://pith.science/pith/7DDWZFYMRXYKKEAN4PYQRXQQHW/state.json","well_known_bundle_url":"https://pith.science/.well-known/pith/7DDWZFYMRXYKKEAN4PYQRXQQHW/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":"2026-06-08T21:59:34Z","links":{"resolver":"https://pith.science/pith/7DDWZFYMRXYKKEAN4PYQRXQQHW","bundle":"https://pith.science/pith/7DDWZFYMRXYKKEAN4PYQRXQQHW/bundle.json","state":"https://pith.science/pith/7DDWZFYMRXYKKEAN4PYQRXQQHW/state.json","well_known_bundle":"https://pith.science/.well-known/pith/7DDWZFYMRXYKKEAN4PYQRXQQHW/bundle.json"},"state":{"state_type":"pith_open_graph_state","state_version":"1.0","pith_number":"pith:2018:7DDWZFYMRXYKKEAN4PYQRXQQHW","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":"b6c3cd1aea512b828c8857733bd39c2691f9c0956103d7910b3d0028d89dc1a3","cross_cats_sorted":[],"license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"astro-ph.EP","submitted_at":"2018-05-27T18:13:26Z","title_canon_sha256":"d79f1500dcfd58e3af9a4f5ac36fa19bcfa567c98ce35e3d691175a1e3b5c5de"},"schema_version":"1.0","source":{"id":"1805.10671","kind":"arxiv","version":1}},"source_aliases":[{"alias_kind":"arxiv","alias_value":"1805.10671","created_at":"2026-05-18T00:14:51Z"},{"alias_kind":"arxiv_version","alias_value":"1805.10671v1","created_at":"2026-05-18T00:14:51Z"},{"alias_kind":"doi","alias_value":"10.48550/arxiv.1805.10671","created_at":"2026-05-18T00:14:51Z"},{"alias_kind":"pith_short_12","alias_value":"7DDWZFYMRXYK","created_at":"2026-05-18T12:32:11Z"},{"alias_kind":"pith_short_16","alias_value":"7DDWZFYMRXYKKEAN","created_at":"2026-05-18T12:32:11Z"},{"alias_kind":"pith_short_8","alias_value":"7DDWZFYM","created_at":"2026-05-18T12:32:11Z"}],"graph_snapshots":[{"event_id":"sha256:bed8703ec05a0b19dd77a0435b66d25e7df2dded45b3b92b6e6b783caeb30ef7","target":"graph","created_at":"2026-05-18T00:14:51Z","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":"An exosphere was recently detected around the exoplanet WASP-107b, a low-density, warm Neptune, based on an absorption feature from metastable helium (which has a vacuum wavelength of 10833 \\AA). Inspired by the WASP-107b detection, we reanalyzed archival HST observations of another evaporating exoplanet, WASP-12b, to search for signs of helium in its exosphere. We find no significant increase in transit depth at 10833 \\AA. We compare this result to theoretical predictions from a 1D model, and find that the expected helium feature amplitude is small, in agreement with the observed non-detectio","authors_text":"Antonija Oklop\\v{c}i\\'c, Laura Kreidberg","cross_cats":[],"headline":"","license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"astro-ph.EP","submitted_at":"2018-05-27T18:13:26Z","title":"Non-Detection of a Helium Exosphere for the Hot Jupiter WASP-12b"},"references":{"count":0,"internal_anchors":0,"resolved_work":0,"sample":[],"snapshot_sha256":"258153158e38e3291e3d48162225fcdb2d5a3ed65a07baac614ab91432fd4f57"},"source":{"id":"1805.10671","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":"sha256:4a7e09c0abd54b49afa11636f42d152db877d5a585effe48a835eafc82fe4560","target":"record","created_at":"2026-05-18T00:14:51Z","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":"b6c3cd1aea512b828c8857733bd39c2691f9c0956103d7910b3d0028d89dc1a3","cross_cats_sorted":[],"license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"astro-ph.EP","submitted_at":"2018-05-27T18:13:26Z","title_canon_sha256":"d79f1500dcfd58e3af9a4f5ac36fa19bcfa567c98ce35e3d691175a1e3b5c5de"},"schema_version":"1.0","source":{"id":"1805.10671","kind":"arxiv","version":1}},"canonical_sha256":"f8c76c970c8df0a5100de3f108de103dbb5337f0658d636c429c3c61583c7502","receipt":{"algorithm":"ed25519","builder_version":"pith-number-builder-2026-05-17-v1","canonical_sha256":"f8c76c970c8df0a5100de3f108de103dbb5337f0658d636c429c3c61583c7502","first_computed_at":"2026-05-18T00:14:51.767108Z","key_id":"pith-v1-2026-05","kind":"pith_receipt","last_reissued_at":"2026-05-18T00:14:51.767108Z","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54","receipt_version":"0.3","signature_b64":"8TgIkWoQTEqBe8HCEsjQcTxnf/KSp4RLyV/7I7eLG9rA0JF0SDunPtCq13IM9+dqtGjtrVm5crnuh5jlvz3oAw==","signature_status":"signed_v1","signed_at":"2026-05-18T00:14:51.767792Z","signed_message":"canonical_sha256_bytes"},"source_id":"1805.10671","source_kind":"arxiv","source_version":1}}},"equivocations":[],"invalid_events":[],"applied_event_ids":["sha256:4a7e09c0abd54b49afa11636f42d152db877d5a585effe48a835eafc82fe4560","sha256:bed8703ec05a0b19dd77a0435b66d25e7df2dded45b3b92b6e6b783caeb30ef7"],"state_sha256":"baa8682ad5ccabf7f33fc7aa86d78829e8c793c5409b9f4997e32ab57b85b538"},"bundle_signature":{"signature_status":"signed_v1","algorithm":"ed25519","key_id":"pith-v1-2026-05","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54","signature_b64":"FDOyQzTfvUBuCDXwor3gI59E54uQ66YnIx+vPTcAYj/DqLlQ1xaD38HdiLJvX+hMf877ywkpzZHCQABUlNqaBg==","signed_message":"bundle_sha256_bytes","signed_at":"2026-06-08T21:59:34.335002Z","bundle_sha256":"8feda236454e280aa2f989c029267bb1290074806eef536b1afbba8a104ed00c"}}