{"bundle_type":"pith_open_graph_bundle","bundle_version":"1.0","pith_number":"pith:2012:M3676F2NJWZATKA6ZPQBIHG36L","short_pith_number":"pith:M3676F2N","canonical_record":{"source":{"id":"1202.1883","kind":"arxiv","version":2},"metadata":{"license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"astro-ph.EP","submitted_at":"2012-02-09T04:09:49Z","cross_cats_sorted":[],"title_canon_sha256":"af6bb84e3429ecab587913a4d1c2fea3f15ced682e2a6b7d0853f54f1af7cd16","abstract_canon_sha256":"2a7a6e1e722b88f87e574934db96657e80ad82f19c2b8036c703c0a4fb763682"},"schema_version":"1.0"},"canonical_sha256":"66fdff174d4db209a81ecbe0141cdbf2e9a11ba5177e95f3b91aad59f37f0e75","source":{"kind":"arxiv","id":"1202.1883","version":2},"source_aliases":[{"alias_kind":"arxiv","alias_value":"1202.1883","created_at":"2026-05-18T01:58:31Z"},{"alias_kind":"arxiv_version","alias_value":"1202.1883v2","created_at":"2026-05-18T01:58:31Z"},{"alias_kind":"doi","alias_value":"10.48550/arxiv.1202.1883","created_at":"2026-05-18T01:58:31Z"},{"alias_kind":"pith_short_12","alias_value":"M3676F2NJWZA","created_at":"2026-05-18T12:27:14Z"},{"alias_kind":"pith_short_16","alias_value":"M3676F2NJWZATKA6","created_at":"2026-05-18T12:27:14Z"},{"alias_kind":"pith_short_8","alias_value":"M3676F2N","created_at":"2026-05-18T12:27:14Z"}],"events":[{"event_type":"record_created","subject_pith_number":"pith:2012:M3676F2NJWZATKA6ZPQBIHG36L","target":"record","payload":{"canonical_record":{"source":{"id":"1202.1883","kind":"arxiv","version":2},"metadata":{"license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"astro-ph.EP","submitted_at":"2012-02-09T04:09:49Z","cross_cats_sorted":[],"title_canon_sha256":"af6bb84e3429ecab587913a4d1c2fea3f15ced682e2a6b7d0853f54f1af7cd16","abstract_canon_sha256":"2a7a6e1e722b88f87e574934db96657e80ad82f19c2b8036c703c0a4fb763682"},"schema_version":"1.0"},"canonical_sha256":"66fdff174d4db209a81ecbe0141cdbf2e9a11ba5177e95f3b91aad59f37f0e75","receipt":{"kind":"pith_receipt","key_id":"pith-v1-2026-05","algorithm":"ed25519","signed_at":"2026-05-18T01:58:31.995184Z","signature_b64":"fCbD70s3ZMT6X7ruRm6NddLyvCCNK4R/rjd5XPNJ1sz7OPLMXc/UijbLRTDVqA5VACLfFOTKTorCF9NJ9GHgDQ==","signed_message":"canonical_sha256_bytes","builder_version":"pith-number-builder-2026-05-17-v1","receipt_version":"0.3","canonical_sha256":"66fdff174d4db209a81ecbe0141cdbf2e9a11ba5177e95f3b91aad59f37f0e75","last_reissued_at":"2026-05-18T01:58:31.994649Z","signature_status":"signed_v1","first_computed_at":"2026-05-18T01:58:31.994649Z","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54"},"source_kind":"arxiv","source_id":"1202.1883","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":"2026-05-18T01:58:31Z","supersedes":[],"prev_event":null,"signature":{"signature_status":"signed_v1","algorithm":"ed25519","key_id":"pith-v1-2026-05","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54","signature_b64":"RgfNs/iPqflxD5aRlDRD2opa18Iuou1BHROte7tnpp9pIrqXqe4kjzXFUe26eA288MIlHEx6OCpjAVrmSYbxBQ==","signed_message":"open_graph_event_sha256_bytes","signed_at":"2026-06-28T19:28:01.456015Z"},"content_sha256":"918153937da372118b0b2d7b28f10c37629991a396b0386e83adbc14e444f1ea","schema_version":"1.0","event_id":"sha256:918153937da372118b0b2d7b28f10c37629991a396b0386e83adbc14e444f1ea"},{"event_type":"graph_snapshot","subject_pith_number":"pith:2012:M3676F2NJWZATKA6ZPQBIHG36L","target":"graph","payload":{"graph_snapshot":{"paper":{"title":"A Two-Dimensional Infrared Map of the Extrasolar Planet HD 189733b","license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","headline":"","cross_cats":[],"primary_cat":"astro-ph.EP","authors_text":"C. Majeau (Columbia University), E. Agol (University of Washington), N. Cowan (CIERA, Northwestern)","submitted_at":"2012-02-09T04:09:49Z","abstract_excerpt":"We derive the first secondary eclipse map of an exoplanet, HD 189733b, based on Spitzer IRAC 8 micron data. We develop two complementary techniques for deriving the two dimensional planet intensity: regularized slice mapping and spherical harmonic mapping. Both techniques give similar derived intensity maps for the infrared day-side flux of the planet, while the spherical harmonic method can be extended to include phase variation data which better constrain the map. The longitudinal offset of the day-side hot spot is consistent with that found in prior studies, strengthening the claim of super"},"claims":{"count":0,"items":[],"snapshot_sha256":"258153158e38e3291e3d48162225fcdb2d5a3ed65a07baac614ab91432fd4f57"},"source":{"id":"1202.1883","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":"2026-05-18T01:58:31Z","supersedes":[],"prev_event":null,"signature":{"signature_status":"signed_v1","algorithm":"ed25519","key_id":"pith-v1-2026-05","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54","signature_b64":"8WzNW1NWPnD81Jv2pvzhKMdo0QiSZkf+H+EEJj0qvva6NRW3p/N4OTVD+mNJuzQY+Kib5BwHphYPfePXUp3CBQ==","signed_message":"open_graph_event_sha256_bytes","signed_at":"2026-06-28T19:28:01.456372Z"},"content_sha256":"f41ba89ec85a7c5f0243aade84bff7ff03464d880e9593e0a5efd67ead45ebc5","schema_version":"1.0","event_id":"sha256:f41ba89ec85a7c5f0243aade84bff7ff03464d880e9593e0a5efd67ead45ebc5"}],"timestamp_proofs":[],"mirror_hints":[{"mirror_type":"https","name":"Pith Resolver","base_url":"https://pith.science","bundle_url":"https://pith.science/pith/M3676F2NJWZATKA6ZPQBIHG36L/bundle.json","state_url":"https://pith.science/pith/M3676F2NJWZATKA6ZPQBIHG36L/state.json","well_known_bundle_url":"https://pith.science/.well-known/pith/M3676F2NJWZATKA6ZPQBIHG36L/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":"2026-06-28T19:28:01Z","links":{"resolver":"https://pith.science/pith/M3676F2NJWZATKA6ZPQBIHG36L","bundle":"https://pith.science/pith/M3676F2NJWZATKA6ZPQBIHG36L/bundle.json","state":"https://pith.science/pith/M3676F2NJWZATKA6ZPQBIHG36L/state.json","well_known_bundle":"https://pith.science/.well-known/pith/M3676F2NJWZATKA6ZPQBIHG36L/bundle.json"},"state":{"state_type":"pith_open_graph_state","state_version":"1.0","pith_number":"pith:2012:M3676F2NJWZATKA6ZPQBIHG36L","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":"2a7a6e1e722b88f87e574934db96657e80ad82f19c2b8036c703c0a4fb763682","cross_cats_sorted":[],"license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"astro-ph.EP","submitted_at":"2012-02-09T04:09:49Z","title_canon_sha256":"af6bb84e3429ecab587913a4d1c2fea3f15ced682e2a6b7d0853f54f1af7cd16"},"schema_version":"1.0","source":{"id":"1202.1883","kind":"arxiv","version":2}},"source_aliases":[{"alias_kind":"arxiv","alias_value":"1202.1883","created_at":"2026-05-18T01:58:31Z"},{"alias_kind":"arxiv_version","alias_value":"1202.1883v2","created_at":"2026-05-18T01:58:31Z"},{"alias_kind":"doi","alias_value":"10.48550/arxiv.1202.1883","created_at":"2026-05-18T01:58:31Z"},{"alias_kind":"pith_short_12","alias_value":"M3676F2NJWZA","created_at":"2026-05-18T12:27:14Z"},{"alias_kind":"pith_short_16","alias_value":"M3676F2NJWZATKA6","created_at":"2026-05-18T12:27:14Z"},{"alias_kind":"pith_short_8","alias_value":"M3676F2N","created_at":"2026-05-18T12:27:14Z"}],"graph_snapshots":[{"event_id":"sha256:f41ba89ec85a7c5f0243aade84bff7ff03464d880e9593e0a5efd67ead45ebc5","target":"graph","created_at":"2026-05-18T01:58:31Z","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 derive the first secondary eclipse map of an exoplanet, HD 189733b, based on Spitzer IRAC 8 micron data. We develop two complementary techniques for deriving the two dimensional planet intensity: regularized slice mapping and spherical harmonic mapping. Both techniques give similar derived intensity maps for the infrared day-side flux of the planet, while the spherical harmonic method can be extended to include phase variation data which better constrain the map. The longitudinal offset of the day-side hot spot is consistent with that found in prior studies, strengthening the claim of super","authors_text":"C. Majeau (Columbia University), E. Agol (University of Washington), N. Cowan (CIERA, Northwestern)","cross_cats":[],"headline":"","license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"astro-ph.EP","submitted_at":"2012-02-09T04:09:49Z","title":"A Two-Dimensional Infrared Map of the Extrasolar Planet HD 189733b"},"references":{"count":0,"internal_anchors":0,"resolved_work":0,"sample":[],"snapshot_sha256":"258153158e38e3291e3d48162225fcdb2d5a3ed65a07baac614ab91432fd4f57"},"source":{"id":"1202.1883","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":"sha256:918153937da372118b0b2d7b28f10c37629991a396b0386e83adbc14e444f1ea","target":"record","created_at":"2026-05-18T01:58:31Z","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":"2a7a6e1e722b88f87e574934db96657e80ad82f19c2b8036c703c0a4fb763682","cross_cats_sorted":[],"license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"astro-ph.EP","submitted_at":"2012-02-09T04:09:49Z","title_canon_sha256":"af6bb84e3429ecab587913a4d1c2fea3f15ced682e2a6b7d0853f54f1af7cd16"},"schema_version":"1.0","source":{"id":"1202.1883","kind":"arxiv","version":2}},"canonical_sha256":"66fdff174d4db209a81ecbe0141cdbf2e9a11ba5177e95f3b91aad59f37f0e75","receipt":{"algorithm":"ed25519","builder_version":"pith-number-builder-2026-05-17-v1","canonical_sha256":"66fdff174d4db209a81ecbe0141cdbf2e9a11ba5177e95f3b91aad59f37f0e75","first_computed_at":"2026-05-18T01:58:31.994649Z","key_id":"pith-v1-2026-05","kind":"pith_receipt","last_reissued_at":"2026-05-18T01:58:31.994649Z","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54","receipt_version":"0.3","signature_b64":"fCbD70s3ZMT6X7ruRm6NddLyvCCNK4R/rjd5XPNJ1sz7OPLMXc/UijbLRTDVqA5VACLfFOTKTorCF9NJ9GHgDQ==","signature_status":"signed_v1","signed_at":"2026-05-18T01:58:31.995184Z","signed_message":"canonical_sha256_bytes"},"source_id":"1202.1883","source_kind":"arxiv","source_version":2}}},"equivocations":[],"invalid_events":[],"applied_event_ids":["sha256:918153937da372118b0b2d7b28f10c37629991a396b0386e83adbc14e444f1ea","sha256:f41ba89ec85a7c5f0243aade84bff7ff03464d880e9593e0a5efd67ead45ebc5"],"state_sha256":"f28107901e074c0079e48931a1622fe8d8e33c0a59dac0fd205ae6570a33ee98"},"bundle_signature":{"signature_status":"signed_v1","algorithm":"ed25519","key_id":"pith-v1-2026-05","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54","signature_b64":"zawesgIJ0LipJEowtpNmPKgASAPsNH8oY/RxyVdXosxnnVZLf+xp+yOSOKivvv3iLe1T3qNSg9Gso+QSYltqAw==","signed_message":"bundle_sha256_bytes","signed_at":"2026-06-28T19:28:01.458514Z","bundle_sha256":"061826b07dec72c15ca2f8487f30439ffa2b4a5ed9e7c14d8e89c0efc56d60a4"}}