{"bundle_type":"pith_open_graph_bundle","bundle_version":"1.0","pith_number":"pith:2019:IOGO5ADWIK466J5EJ6GLSUKYSO","short_pith_number":"pith:IOGO5ADW","canonical_record":{"source":{"id":"1905.02734","kind":"arxiv","version":1},"metadata":{"license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"astro-ph.GA","submitted_at":"2019-05-07T18:00:06Z","cross_cats_sorted":[],"title_canon_sha256":"a6a03197921e507125b4be9b9efe3b5eee54f3bd2dbafd5445205e41a0c2dd33","abstract_canon_sha256":"445bb34dd62175675c6f6e2f55cc20e4d00f2f4408d6e0f0d1e37006f61897ad"},"schema_version":"1.0"},"canonical_sha256":"438cee807642b9ef27a44f8cb951589398649e3ec758bc5f8cfe67d3b5f05716","source":{"kind":"arxiv","id":"1905.02734","version":1},"source_aliases":[{"alias_kind":"arxiv","alias_value":"1905.02734","created_at":"2026-05-17T23:38:50Z"},{"alias_kind":"arxiv_version","alias_value":"1905.02734v1","created_at":"2026-05-17T23:38:50Z"},{"alias_kind":"doi","alias_value":"10.48550/arxiv.1905.02734","created_at":"2026-05-17T23:38:50Z"},{"alias_kind":"pith_short_12","alias_value":"IOGO5ADWIK46","created_at":"2026-05-18T12:33:18Z"},{"alias_kind":"pith_short_16","alias_value":"IOGO5ADWIK466J5E","created_at":"2026-05-18T12:33:18Z"},{"alias_kind":"pith_short_8","alias_value":"IOGO5ADW","created_at":"2026-05-18T12:33:18Z"}],"events":[{"event_type":"record_created","subject_pith_number":"pith:2019:IOGO5ADWIK466J5EJ6GLSUKYSO","target":"record","payload":{"canonical_record":{"source":{"id":"1905.02734","kind":"arxiv","version":1},"metadata":{"license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"astro-ph.GA","submitted_at":"2019-05-07T18:00:06Z","cross_cats_sorted":[],"title_canon_sha256":"a6a03197921e507125b4be9b9efe3b5eee54f3bd2dbafd5445205e41a0c2dd33","abstract_canon_sha256":"445bb34dd62175675c6f6e2f55cc20e4d00f2f4408d6e0f0d1e37006f61897ad"},"schema_version":"1.0"},"canonical_sha256":"438cee807642b9ef27a44f8cb951589398649e3ec758bc5f8cfe67d3b5f05716","receipt":{"kind":"pith_receipt","key_id":"pith-v1-2026-05","algorithm":"ed25519","signed_at":"2026-05-17T23:38:50.308079Z","signature_b64":"KAYtJ03/Qip23wVCDPfHghJKSR9Ry55zwW/+m9j2E9u1vaZqb1K3kD3eC6VWTKu0VWPOy0Q8BtcLdypTm3ZkDQ==","signed_message":"canonical_sha256_bytes","builder_version":"pith-number-builder-2026-05-17-v1","receipt_version":"0.3","canonical_sha256":"438cee807642b9ef27a44f8cb951589398649e3ec758bc5f8cfe67d3b5f05716","last_reissued_at":"2026-05-17T23:38:50.307619Z","signature_status":"signed_v1","first_computed_at":"2026-05-17T23:38:50.307619Z","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54"},"source_kind":"arxiv","source_id":"1905.02734","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":"2026-05-17T23:38:50Z","supersedes":[],"prev_event":null,"signature":{"signature_status":"signed_v1","algorithm":"ed25519","key_id":"pith-v1-2026-05","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54","signature_b64":"dCEFPRSARNzYaUr7RRk29riVNfLnITi++Dw/PK1jCaNJzWqWYjB1+K8qAAckrjNNEkd7qcPDiDZseguHEp63CA==","signed_message":"open_graph_event_sha256_bytes","signed_at":"2026-05-21T16:41:53.378231Z"},"content_sha256":"3a223867c11512ea85a921392d149d2ad6a41c0904a366fcb3d8695ceb54a726","schema_version":"1.0","event_id":"sha256:3a223867c11512ea85a921392d149d2ad6a41c0904a366fcb3d8695ceb54a726"},{"event_type":"graph_snapshot","subject_pith_number":"pith:2019:IOGO5ADWIK466J5EJ6GLSUKYSO","target":"graph","payload":{"graph_snapshot":{"paper":{"title":"A 3D Dust Map Based on Gaia, Pan-STARRS 1 and 2MASS","license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","headline":"New 3D dust map uses Gaia parallaxes and a spatial prior for smoother clouds with smaller uncertainties.","cross_cats":[],"primary_cat":"astro-ph.GA","authors_text":"Catherine Zucker, Douglas P. Finkbeiner, Edward F. Schlafly, Gregory M. Green, Joshua S. Speagle","submitted_at":"2019-05-07T18:00:06Z","abstract_excerpt":"We present a new three-dimensional map of dust reddening, based on Gaia parallaxes and stellar photometry from Pan-STARRS 1 and 2MASS. This map covers the sky north of a declination of -30 degrees, out to a distance of several kiloparsecs. This new map contains three major improvements over our previous work. First, the inclusion of Gaia parallaxes dramatically improves distance estimates to nearby stars. Second, we incorporate a spatial prior that correlates the dust density across nearby sightlines. This produces a smoother map, with more isotropic clouds and smaller distance uncertainties, "},"claims":{"count":4,"items":[{"kind":"strongest_claim","text":"This new map contains three major improvements over our previous work: inclusion of Gaia parallaxes for better distances, a spatial prior correlating dust density across nearby sightlines, and four times finer distance resolution.","source":"verdict.strongest_claim","status":"machine_extracted","claim_id":"C1","attestation":"unclaimed"},{"kind":"weakest_assumption","text":"The spatial prior that correlates dust density across nearby sightlines will produce a smoother map with more isotropic clouds and smaller distance uncertainties, particularly within the nearest kiloparsec.","source":"verdict.weakest_assumption","status":"machine_extracted","claim_id":"C2","attestation":"unclaimed"},{"kind":"one_line_summary","text":"A new 3D dust reddening map with finer distance resolution, a spatial correlation prior, and Gaia-based distances covering the sky north of -30 degrees declination out to several kiloparsecs.","source":"verdict.one_line_summary","status":"machine_extracted","claim_id":"C3","attestation":"unclaimed"},{"kind":"headline","text":"New 3D dust map uses Gaia parallaxes and a spatial prior for smoother clouds with smaller uncertainties.","source":"verdict.pith_extraction.headline","status":"machine_extracted","claim_id":"C4","attestation":"unclaimed"}],"snapshot_sha256":"3c21318bab2a7918c015489c5f3a9188264de744295f0aa61d0df44f0abf5220"},"source":{"id":"1905.02734","kind":"arxiv","version":1},"verdict":{"id":"6b5504df-d451-47bc-86a4-2f507e433c79","model_set":{"reader":"grok-4.3"},"created_at":"2026-05-15T20:10:07.407072Z","strongest_claim":"This new map contains three major improvements over our previous work: inclusion of Gaia parallaxes for better distances, a spatial prior correlating dust density across nearby sightlines, and four times finer distance resolution.","one_line_summary":"A new 3D dust reddening map with finer distance resolution, a spatial correlation prior, and Gaia-based distances covering the sky north of -30 degrees declination out to several kiloparsecs.","pipeline_version":"pith-pipeline@v0.9.0","weakest_assumption":"The spatial prior that correlates dust density across nearby sightlines will produce a smoother map with more isotropic clouds and smaller distance uncertainties, particularly within the nearest kiloparsec.","pith_extraction_headline":"New 3D dust map uses Gaia parallaxes and a spatial prior for smoother clouds with smaller uncertainties."},"references":{"count":79,"sample":[{"doi":"","year":2018,"title":"S., Aguilar , G., et al","work_id":"5f9a7747-feb0-4632-8a34-5e4359afbc03","ref_index":1,"cited_arxiv_id":"","is_internal_anchor":false},{"doi":"","year":2018,"title":"2018, , 616, A8","work_id":"566c753c-1598-424e-963f-0bb5461ed872","ref_index":2,"cited_arxiv_id":"","is_internal_anchor":false},{"doi":"","year":2018,"title":"2018, , 616, A17","work_id":"9fd993f5-90e0-4135-be81-9b9334688084","ref_index":3,"cited_arxiv_id":"","is_internal_anchor":false},{"doi":"","year":2013,"title":"P., Tollerud , E","work_id":"dfe38d68-5824-4576-88fd-54c61da6cc6f","ref_index":4,"cited_arxiv_id":"","is_internal_anchor":false},{"doi":"","year":2012,"title":"2012, , 757, 166","work_id":"889e10a2-b33c-4f74-800c-85a04c328e30","ref_index":5,"cited_arxiv_id":"","is_internal_anchor":false}],"resolved_work":79,"snapshot_sha256":"ded980e6fce43a0cdda8c664ba8343b4c8a575e0503e238d3c303c65d794bf4a","internal_anchors":5},"formal_canon":{"evidence_count":2,"snapshot_sha256":"6b4f075cda21393e458704995c82d68a38947a820445c870ecf1116306dd13a0"},"author_claims":{"count":0,"strong_count":0,"snapshot_sha256":"258153158e38e3291e3d48162225fcdb2d5a3ed65a07baac614ab91432fd4f57"},"builder_version":"pith-number-builder-2026-05-17-v1"},"verdict_id":"6b5504df-d451-47bc-86a4-2f507e433c79"},"signer":{"signer_id":"pith.science","signer_type":"pith_registry","key_id":"pith-v1-2026-05","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54"},"created_at":"2026-05-17T23:38:50Z","supersedes":[],"prev_event":null,"signature":{"signature_status":"signed_v1","algorithm":"ed25519","key_id":"pith-v1-2026-05","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54","signature_b64":"VplhZ1RMWQbmW+rXJMN3tyBSNtVojBRZt4A+BUjkP4RTnP7Jxpyocl1i/5hyRvqaiwowOFBzfbtjl8x6G+4qDg==","signed_message":"open_graph_event_sha256_bytes","signed_at":"2026-05-21T16:41:53.378779Z"},"content_sha256":"710833f48882acabb3c656deb07c34460bbb93f56616dedf010e6db45fe17aff","schema_version":"1.0","event_id":"sha256:710833f48882acabb3c656deb07c34460bbb93f56616dedf010e6db45fe17aff"}],"timestamp_proofs":[],"mirror_hints":[{"mirror_type":"https","name":"Pith Resolver","base_url":"https://pith.science","bundle_url":"https://pith.science/pith/IOGO5ADWIK466J5EJ6GLSUKYSO/bundle.json","state_url":"https://pith.science/pith/IOGO5ADWIK466J5EJ6GLSUKYSO/state.json","well_known_bundle_url":"https://pith.science/.well-known/pith/IOGO5ADWIK466J5EJ6GLSUKYSO/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":"2026-05-21T16:41:53Z","links":{"resolver":"https://pith.science/pith/IOGO5ADWIK466J5EJ6GLSUKYSO","bundle":"https://pith.science/pith/IOGO5ADWIK466J5EJ6GLSUKYSO/bundle.json","state":"https://pith.science/pith/IOGO5ADWIK466J5EJ6GLSUKYSO/state.json","well_known_bundle":"https://pith.science/.well-known/pith/IOGO5ADWIK466J5EJ6GLSUKYSO/bundle.json"},"state":{"state_type":"pith_open_graph_state","state_version":"1.0","pith_number":"pith:2019:IOGO5ADWIK466J5EJ6GLSUKYSO","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":"445bb34dd62175675c6f6e2f55cc20e4d00f2f4408d6e0f0d1e37006f61897ad","cross_cats_sorted":[],"license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"astro-ph.GA","submitted_at":"2019-05-07T18:00:06Z","title_canon_sha256":"a6a03197921e507125b4be9b9efe3b5eee54f3bd2dbafd5445205e41a0c2dd33"},"schema_version":"1.0","source":{"id":"1905.02734","kind":"arxiv","version":1}},"source_aliases":[{"alias_kind":"arxiv","alias_value":"1905.02734","created_at":"2026-05-17T23:38:50Z"},{"alias_kind":"arxiv_version","alias_value":"1905.02734v1","created_at":"2026-05-17T23:38:50Z"},{"alias_kind":"doi","alias_value":"10.48550/arxiv.1905.02734","created_at":"2026-05-17T23:38:50Z"},{"alias_kind":"pith_short_12","alias_value":"IOGO5ADWIK46","created_at":"2026-05-18T12:33:18Z"},{"alias_kind":"pith_short_16","alias_value":"IOGO5ADWIK466J5E","created_at":"2026-05-18T12:33:18Z"},{"alias_kind":"pith_short_8","alias_value":"IOGO5ADW","created_at":"2026-05-18T12:33:18Z"}],"graph_snapshots":[{"event_id":"sha256:710833f48882acabb3c656deb07c34460bbb93f56616dedf010e6db45fe17aff","target":"graph","created_at":"2026-05-17T23:38:50Z","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":4,"items":[{"attestation":"unclaimed","claim_id":"C1","kind":"strongest_claim","source":"verdict.strongest_claim","status":"machine_extracted","text":"This new map contains three major improvements over our previous work: inclusion of Gaia parallaxes for better distances, a spatial prior correlating dust density across nearby sightlines, and four times finer distance resolution."},{"attestation":"unclaimed","claim_id":"C2","kind":"weakest_assumption","source":"verdict.weakest_assumption","status":"machine_extracted","text":"The spatial prior that correlates dust density across nearby sightlines will produce a smoother map with more isotropic clouds and smaller distance uncertainties, particularly within the nearest kiloparsec."},{"attestation":"unclaimed","claim_id":"C3","kind":"one_line_summary","source":"verdict.one_line_summary","status":"machine_extracted","text":"A new 3D dust reddening map with finer distance resolution, a spatial correlation prior, and Gaia-based distances covering the sky north of -30 degrees declination out to several kiloparsecs."},{"attestation":"unclaimed","claim_id":"C4","kind":"headline","source":"verdict.pith_extraction.headline","status":"machine_extracted","text":"New 3D dust map uses Gaia parallaxes and a spatial prior for smoother clouds with smaller uncertainties."}],"snapshot_sha256":"3c21318bab2a7918c015489c5f3a9188264de744295f0aa61d0df44f0abf5220"},"formal_canon":{"evidence_count":2,"snapshot_sha256":"6b4f075cda21393e458704995c82d68a38947a820445c870ecf1116306dd13a0"},"paper":{"abstract_excerpt":"We present a new three-dimensional map of dust reddening, based on Gaia parallaxes and stellar photometry from Pan-STARRS 1 and 2MASS. This map covers the sky north of a declination of -30 degrees, out to a distance of several kiloparsecs. This new map contains three major improvements over our previous work. First, the inclusion of Gaia parallaxes dramatically improves distance estimates to nearby stars. Second, we incorporate a spatial prior that correlates the dust density across nearby sightlines. This produces a smoother map, with more isotropic clouds and smaller distance uncertainties, ","authors_text":"Catherine Zucker, Douglas P. Finkbeiner, Edward F. Schlafly, Gregory M. Green, Joshua S. Speagle","cross_cats":[],"headline":"New 3D dust map uses Gaia parallaxes and a spatial prior for smoother clouds with smaller uncertainties.","license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"astro-ph.GA","submitted_at":"2019-05-07T18:00:06Z","title":"A 3D Dust Map Based on Gaia, Pan-STARRS 1 and 2MASS"},"references":{"count":79,"internal_anchors":5,"resolved_work":79,"sample":[{"cited_arxiv_id":"","doi":"","is_internal_anchor":false,"ref_index":1,"title":"S., Aguilar , G., et al","work_id":"5f9a7747-feb0-4632-8a34-5e4359afbc03","year":2018},{"cited_arxiv_id":"","doi":"","is_internal_anchor":false,"ref_index":2,"title":"2018, , 616, A8","work_id":"566c753c-1598-424e-963f-0bb5461ed872","year":2018},{"cited_arxiv_id":"","doi":"","is_internal_anchor":false,"ref_index":3,"title":"2018, , 616, A17","work_id":"9fd993f5-90e0-4135-be81-9b9334688084","year":2018},{"cited_arxiv_id":"","doi":"","is_internal_anchor":false,"ref_index":4,"title":"P., Tollerud , E","work_id":"dfe38d68-5824-4576-88fd-54c61da6cc6f","year":2013},{"cited_arxiv_id":"","doi":"","is_internal_anchor":false,"ref_index":5,"title":"2012, , 757, 166","work_id":"889e10a2-b33c-4f74-800c-85a04c328e30","year":2012}],"snapshot_sha256":"ded980e6fce43a0cdda8c664ba8343b4c8a575e0503e238d3c303c65d794bf4a"},"source":{"id":"1905.02734","kind":"arxiv","version":1},"verdict":{"created_at":"2026-05-15T20:10:07.407072Z","id":"6b5504df-d451-47bc-86a4-2f507e433c79","model_set":{"reader":"grok-4.3"},"one_line_summary":"A new 3D dust reddening map with finer distance resolution, a spatial correlation prior, and Gaia-based distances covering the sky north of -30 degrees declination out to several kiloparsecs.","pipeline_version":"pith-pipeline@v0.9.0","pith_extraction_headline":"New 3D dust map uses Gaia parallaxes and a spatial prior for smoother clouds with smaller uncertainties.","strongest_claim":"This new map contains three major improvements over our previous work: inclusion of Gaia parallaxes for better distances, a spatial prior correlating dust density across nearby sightlines, and four times finer distance resolution.","weakest_assumption":"The spatial prior that correlates dust density across nearby sightlines will produce a smoother map with more isotropic clouds and smaller distance uncertainties, particularly within the nearest kiloparsec."}},"verdict_id":"6b5504df-d451-47bc-86a4-2f507e433c79"}}],"author_attestations":[],"timestamp_anchors":[],"storage_attestations":[],"citation_signatures":[],"replication_records":[],"corrections":[],"mirror_hints":[],"record_created":{"event_id":"sha256:3a223867c11512ea85a921392d149d2ad6a41c0904a366fcb3d8695ceb54a726","target":"record","created_at":"2026-05-17T23:38:50Z","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":"445bb34dd62175675c6f6e2f55cc20e4d00f2f4408d6e0f0d1e37006f61897ad","cross_cats_sorted":[],"license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"astro-ph.GA","submitted_at":"2019-05-07T18:00:06Z","title_canon_sha256":"a6a03197921e507125b4be9b9efe3b5eee54f3bd2dbafd5445205e41a0c2dd33"},"schema_version":"1.0","source":{"id":"1905.02734","kind":"arxiv","version":1}},"canonical_sha256":"438cee807642b9ef27a44f8cb951589398649e3ec758bc5f8cfe67d3b5f05716","receipt":{"algorithm":"ed25519","builder_version":"pith-number-builder-2026-05-17-v1","canonical_sha256":"438cee807642b9ef27a44f8cb951589398649e3ec758bc5f8cfe67d3b5f05716","first_computed_at":"2026-05-17T23:38:50.307619Z","key_id":"pith-v1-2026-05","kind":"pith_receipt","last_reissued_at":"2026-05-17T23:38:50.307619Z","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54","receipt_version":"0.3","signature_b64":"KAYtJ03/Qip23wVCDPfHghJKSR9Ry55zwW/+m9j2E9u1vaZqb1K3kD3eC6VWTKu0VWPOy0Q8BtcLdypTm3ZkDQ==","signature_status":"signed_v1","signed_at":"2026-05-17T23:38:50.308079Z","signed_message":"canonical_sha256_bytes"},"source_id":"1905.02734","source_kind":"arxiv","source_version":1}}},"equivocations":[],"invalid_events":[],"applied_event_ids":["sha256:3a223867c11512ea85a921392d149d2ad6a41c0904a366fcb3d8695ceb54a726","sha256:710833f48882acabb3c656deb07c34460bbb93f56616dedf010e6db45fe17aff"],"state_sha256":"939b7cf4b1111ad344fdfe9396bbacb65b1aee7c07dafa555c3ebec1e0698cb3"},"bundle_signature":{"signature_status":"signed_v1","algorithm":"ed25519","key_id":"pith-v1-2026-05","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54","signature_b64":"S5fHpdSJ9GyaRrjjIBXGT6utt9G08LOTydIzwz697WQh3kxJ2AwBNTcGDn5Sn9qlktL1ThhlaVDGignrEDYGBQ==","signed_message":"bundle_sha256_bytes","signed_at":"2026-05-21T16:41:53.381551Z","bundle_sha256":"f1f1cbd7ae3c61e263ba76a9232c29e69bd28670dfc4e55e33efdb3892b4bea6"}}