{"bundle_type":"pith_open_graph_bundle","bundle_version":"1.0","pith_number":"pith:2018:NVQ3KCX6ZDQWQTOBJZWRPYNLO3","short_pith_number":"pith:NVQ3KCX6","canonical_record":{"source":{"id":"1806.02345","kind":"arxiv","version":2},"metadata":{"license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"astro-ph.GA","submitted_at":"2018-06-06T18:00:01Z","cross_cats_sorted":[],"title_canon_sha256":"37cfee5f1f94af3474175e8de48d020bcd9ef13cba1c90c6c32acde200bd9f19","abstract_canon_sha256":"73a71e1478faf950df8aede97a59803e7a8fd4a1659bb6af5c107d7f4b6d7bb6"},"schema_version":"1.0"},"canonical_sha256":"6d61b50afec8e1684dc14e6d17e1ab76c34911a95963802aed7ccd2b193396cf","source":{"kind":"arxiv","id":"1806.02345","version":2},"source_aliases":[{"alias_kind":"arxiv","alias_value":"1806.02345","created_at":"2026-05-17T23:47:59Z"},{"alias_kind":"arxiv_version","alias_value":"1806.02345v2","created_at":"2026-05-17T23:47:59Z"},{"alias_kind":"doi","alias_value":"10.48550/arxiv.1806.02345","created_at":"2026-05-17T23:47:59Z"},{"alias_kind":"pith_short_12","alias_value":"NVQ3KCX6ZDQW","created_at":"2026-05-18T12:32:40Z"},{"alias_kind":"pith_short_16","alias_value":"NVQ3KCX6ZDQWQTOB","created_at":"2026-05-18T12:32:40Z"},{"alias_kind":"pith_short_8","alias_value":"NVQ3KCX6","created_at":"2026-05-18T12:32:40Z"}],"events":[{"event_type":"record_created","subject_pith_number":"pith:2018:NVQ3KCX6ZDQWQTOBJZWRPYNLO3","target":"record","payload":{"canonical_record":{"source":{"id":"1806.02345","kind":"arxiv","version":2},"metadata":{"license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"astro-ph.GA","submitted_at":"2018-06-06T18:00:01Z","cross_cats_sorted":[],"title_canon_sha256":"37cfee5f1f94af3474175e8de48d020bcd9ef13cba1c90c6c32acde200bd9f19","abstract_canon_sha256":"73a71e1478faf950df8aede97a59803e7a8fd4a1659bb6af5c107d7f4b6d7bb6"},"schema_version":"1.0"},"canonical_sha256":"6d61b50afec8e1684dc14e6d17e1ab76c34911a95963802aed7ccd2b193396cf","receipt":{"kind":"pith_receipt","key_id":"pith-v1-2026-05","algorithm":"ed25519","signed_at":"2026-05-17T23:47:59.931240Z","signature_b64":"tZDvWdeZPBicbyo2jOe0W+rtalVjzYsT+3nyB5wsFWv8FOGxc5q+ynJqgK+Rqox0XH9cgwhdQ+UONYwZo4myAw==","signed_message":"canonical_sha256_bytes","builder_version":"pith-number-builder-2026-05-17-v1","receipt_version":"0.3","canonical_sha256":"6d61b50afec8e1684dc14e6d17e1ab76c34911a95963802aed7ccd2b193396cf","last_reissued_at":"2026-05-17T23:47:59.930839Z","signature_status":"signed_v1","first_computed_at":"2026-05-17T23:47:59.930839Z","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54"},"source_kind":"arxiv","source_id":"1806.02345","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":"2026-05-17T23:47:59Z","supersedes":[],"prev_event":null,"signature":{"signature_status":"signed_v1","algorithm":"ed25519","key_id":"pith-v1-2026-05","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54","signature_b64":"4m+WAPMJ2HjGyyq4IBJ98zlkJ8FKbt+p6bEkrt064OveBRwy7DCxQwXTzapCoIjwf4SKZTDabptSa58WpU18DQ==","signed_message":"open_graph_event_sha256_bytes","signed_at":"2026-05-25T22:52:21.816188Z"},"content_sha256":"72e73502d74da78d64c992aaba09ac3eae73f0517fd1ea5f198f972e5a860f89","schema_version":"1.0","event_id":"sha256:72e73502d74da78d64c992aaba09ac3eae73f0517fd1ea5f198f972e5a860f89"},{"event_type":"graph_snapshot","subject_pith_number":"pith:2018:NVQ3KCX6ZDQWQTOBJZWRPYNLO3","target":"graph","payload":{"graph_snapshot":{"paper":{"title":"Proper motions of Milky Way Ultra-Faint satellites with ${\\it Gaia}$ DR2 $\\times$ DES DR1","license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","headline":"","cross_cats":[],"primary_cat":"astro-ph.GA","authors_text":"Andrew B. Pace (Texas A&M), Ting S. Li (Fermilab, University of Chicago)","submitted_at":"2018-06-06T18:00:01Z","abstract_excerpt":"We present a new, probabilistic method for determining the systemic proper motions of Milky Way (MW) ultra-faint satellites in the Dark Energy Survey (DES). We utilize the superb photometry from the first public data release (DR1) of DES to select candidate members, and cross-match them with the proper motions from $Gaia$ DR2. We model the candidate members with a mixture model (satellite and MW) in spatial and proper motion space. This method does not require prior knowledge of satellite membership, and can successfully determine the tangential motion of thirteen DES satellites. With our meth"},"claims":{"count":0,"items":[],"snapshot_sha256":"258153158e38e3291e3d48162225fcdb2d5a3ed65a07baac614ab91432fd4f57"},"source":{"id":"1806.02345","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":"2026-05-17T23:47:59Z","supersedes":[],"prev_event":null,"signature":{"signature_status":"signed_v1","algorithm":"ed25519","key_id":"pith-v1-2026-05","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54","signature_b64":"RJnURhW55FKiZB7TqrkIP29t0Qxwhrt8aoverS2f08mCJSdc9vRPqcZYDmzDO1/A3HbR54Sg3+UOg8J3kH1RAA==","signed_message":"open_graph_event_sha256_bytes","signed_at":"2026-05-25T22:52:21.816893Z"},"content_sha256":"4ee1fb53261bafb8cee074416a344f4842616ee071f3042685c2041abe0b5a74","schema_version":"1.0","event_id":"sha256:4ee1fb53261bafb8cee074416a344f4842616ee071f3042685c2041abe0b5a74"}],"timestamp_proofs":[],"mirror_hints":[{"mirror_type":"https","name":"Pith Resolver","base_url":"https://pith.science","bundle_url":"https://pith.science/pith/NVQ3KCX6ZDQWQTOBJZWRPYNLO3/bundle.json","state_url":"https://pith.science/pith/NVQ3KCX6ZDQWQTOBJZWRPYNLO3/state.json","well_known_bundle_url":"https://pith.science/.well-known/pith/NVQ3KCX6ZDQWQTOBJZWRPYNLO3/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":"2026-05-25T22:52:21Z","links":{"resolver":"https://pith.science/pith/NVQ3KCX6ZDQWQTOBJZWRPYNLO3","bundle":"https://pith.science/pith/NVQ3KCX6ZDQWQTOBJZWRPYNLO3/bundle.json","state":"https://pith.science/pith/NVQ3KCX6ZDQWQTOBJZWRPYNLO3/state.json","well_known_bundle":"https://pith.science/.well-known/pith/NVQ3KCX6ZDQWQTOBJZWRPYNLO3/bundle.json"},"state":{"state_type":"pith_open_graph_state","state_version":"1.0","pith_number":"pith:2018:NVQ3KCX6ZDQWQTOBJZWRPYNLO3","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":"73a71e1478faf950df8aede97a59803e7a8fd4a1659bb6af5c107d7f4b6d7bb6","cross_cats_sorted":[],"license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"astro-ph.GA","submitted_at":"2018-06-06T18:00:01Z","title_canon_sha256":"37cfee5f1f94af3474175e8de48d020bcd9ef13cba1c90c6c32acde200bd9f19"},"schema_version":"1.0","source":{"id":"1806.02345","kind":"arxiv","version":2}},"source_aliases":[{"alias_kind":"arxiv","alias_value":"1806.02345","created_at":"2026-05-17T23:47:59Z"},{"alias_kind":"arxiv_version","alias_value":"1806.02345v2","created_at":"2026-05-17T23:47:59Z"},{"alias_kind":"doi","alias_value":"10.48550/arxiv.1806.02345","created_at":"2026-05-17T23:47:59Z"},{"alias_kind":"pith_short_12","alias_value":"NVQ3KCX6ZDQW","created_at":"2026-05-18T12:32:40Z"},{"alias_kind":"pith_short_16","alias_value":"NVQ3KCX6ZDQWQTOB","created_at":"2026-05-18T12:32:40Z"},{"alias_kind":"pith_short_8","alias_value":"NVQ3KCX6","created_at":"2026-05-18T12:32:40Z"}],"graph_snapshots":[{"event_id":"sha256:4ee1fb53261bafb8cee074416a344f4842616ee071f3042685c2041abe0b5a74","target":"graph","created_at":"2026-05-17T23:47:59Z","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 present a new, probabilistic method for determining the systemic proper motions of Milky Way (MW) ultra-faint satellites in the Dark Energy Survey (DES). We utilize the superb photometry from the first public data release (DR1) of DES to select candidate members, and cross-match them with the proper motions from $Gaia$ DR2. We model the candidate members with a mixture model (satellite and MW) in spatial and proper motion space. This method does not require prior knowledge of satellite membership, and can successfully determine the tangential motion of thirteen DES satellites. With our meth","authors_text":"Andrew B. Pace (Texas A&M), Ting S. Li (Fermilab, University of Chicago)","cross_cats":[],"headline":"","license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"astro-ph.GA","submitted_at":"2018-06-06T18:00:01Z","title":"Proper motions of Milky Way Ultra-Faint satellites with ${\\it Gaia}$ DR2 $\\times$ DES DR1"},"references":{"count":0,"internal_anchors":0,"resolved_work":0,"sample":[],"snapshot_sha256":"258153158e38e3291e3d48162225fcdb2d5a3ed65a07baac614ab91432fd4f57"},"source":{"id":"1806.02345","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":"sha256:72e73502d74da78d64c992aaba09ac3eae73f0517fd1ea5f198f972e5a860f89","target":"record","created_at":"2026-05-17T23:47:59Z","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":"73a71e1478faf950df8aede97a59803e7a8fd4a1659bb6af5c107d7f4b6d7bb6","cross_cats_sorted":[],"license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"astro-ph.GA","submitted_at":"2018-06-06T18:00:01Z","title_canon_sha256":"37cfee5f1f94af3474175e8de48d020bcd9ef13cba1c90c6c32acde200bd9f19"},"schema_version":"1.0","source":{"id":"1806.02345","kind":"arxiv","version":2}},"canonical_sha256":"6d61b50afec8e1684dc14e6d17e1ab76c34911a95963802aed7ccd2b193396cf","receipt":{"algorithm":"ed25519","builder_version":"pith-number-builder-2026-05-17-v1","canonical_sha256":"6d61b50afec8e1684dc14e6d17e1ab76c34911a95963802aed7ccd2b193396cf","first_computed_at":"2026-05-17T23:47:59.930839Z","key_id":"pith-v1-2026-05","kind":"pith_receipt","last_reissued_at":"2026-05-17T23:47:59.930839Z","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54","receipt_version":"0.3","signature_b64":"tZDvWdeZPBicbyo2jOe0W+rtalVjzYsT+3nyB5wsFWv8FOGxc5q+ynJqgK+Rqox0XH9cgwhdQ+UONYwZo4myAw==","signature_status":"signed_v1","signed_at":"2026-05-17T23:47:59.931240Z","signed_message":"canonical_sha256_bytes"},"source_id":"1806.02345","source_kind":"arxiv","source_version":2}}},"equivocations":[],"invalid_events":[],"applied_event_ids":["sha256:72e73502d74da78d64c992aaba09ac3eae73f0517fd1ea5f198f972e5a860f89","sha256:4ee1fb53261bafb8cee074416a344f4842616ee071f3042685c2041abe0b5a74"],"state_sha256":"88d1997afce57b193a1b5f2c7eddd99ee90879d76672cc8e7b432733c414cff4"},"bundle_signature":{"signature_status":"signed_v1","algorithm":"ed25519","key_id":"pith-v1-2026-05","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54","signature_b64":"tDr4UqKYaMYIMpZ8Kyc1yQQ3iSv+BbnUinQEsYcD+/IWnIyZeOoiLkWksQJ4iYghkxDWE//tkBMsS4fW0vWODQ==","signed_message":"bundle_sha256_bytes","signed_at":"2026-05-25T22:52:21.820856Z","bundle_sha256":"9ccb45dbd507a7f071c862273b3585a3a61ad6423250daa29f280a82adde99d5"}}