{"bundle_type":"pith_open_graph_bundle","bundle_version":"1.0","pith_number":"pith:2018:VTO6RAOODHSI4ZZIOMIHT5M23D","short_pith_number":"pith:VTO6RAOO","canonical_record":{"source":{"id":"1810.06596","kind":"arxiv","version":2},"metadata":{"license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"astro-ph.GA","submitted_at":"2018-10-15T18:20:48Z","cross_cats_sorted":[],"title_canon_sha256":"093fd4af0a090122e9250dffc4ddb1dff4cc52da569fd613cd752111af3f5c1a","abstract_canon_sha256":"b99a52bb99eb141de6dfcf7b477d0271c2b943330b8c2502454b87015baf4342"},"schema_version":"1.0"},"canonical_sha256":"acdde881ce19e48e6728731079f59ad8d75470dafee88fcd7ac7114bb9bd0c9d","source":{"kind":"arxiv","id":"1810.06596","version":2},"source_aliases":[{"alias_kind":"arxiv","alias_value":"1810.06596","created_at":"2026-05-18T00:02:21Z"},{"alias_kind":"arxiv_version","alias_value":"1810.06596v2","created_at":"2026-05-18T00:02:21Z"},{"alias_kind":"doi","alias_value":"10.48550/arxiv.1810.06596","created_at":"2026-05-18T00:02:21Z"},{"alias_kind":"pith_short_12","alias_value":"VTO6RAOODHSI","created_at":"2026-05-18T12:32:59Z"},{"alias_kind":"pith_short_16","alias_value":"VTO6RAOODHSI4ZZI","created_at":"2026-05-18T12:32:59Z"},{"alias_kind":"pith_short_8","alias_value":"VTO6RAOO","created_at":"2026-05-18T12:32:59Z"}],"events":[{"event_type":"record_created","subject_pith_number":"pith:2018:VTO6RAOODHSI4ZZIOMIHT5M23D","target":"record","payload":{"canonical_record":{"source":{"id":"1810.06596","kind":"arxiv","version":2},"metadata":{"license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"astro-ph.GA","submitted_at":"2018-10-15T18:20:48Z","cross_cats_sorted":[],"title_canon_sha256":"093fd4af0a090122e9250dffc4ddb1dff4cc52da569fd613cd752111af3f5c1a","abstract_canon_sha256":"b99a52bb99eb141de6dfcf7b477d0271c2b943330b8c2502454b87015baf4342"},"schema_version":"1.0"},"canonical_sha256":"acdde881ce19e48e6728731079f59ad8d75470dafee88fcd7ac7114bb9bd0c9d","receipt":{"kind":"pith_receipt","key_id":"pith-v1-2026-05","algorithm":"ed25519","signed_at":"2026-05-18T00:02:21.948381Z","signature_b64":"6LF3RLRidQKz4JxFWsnOhw3ULqonAMKuKOCzsJYNeyY6pBPCfX7GLPnuYVu/CnkdMnLXV5jrT1UfI8mojZhjAQ==","signed_message":"canonical_sha256_bytes","builder_version":"pith-number-builder-2026-05-17-v1","receipt_version":"0.3","canonical_sha256":"acdde881ce19e48e6728731079f59ad8d75470dafee88fcd7ac7114bb9bd0c9d","last_reissued_at":"2026-05-18T00:02:21.947799Z","signature_status":"signed_v1","first_computed_at":"2026-05-18T00:02:21.947799Z","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54"},"source_kind":"arxiv","source_id":"1810.06596","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":"2026-05-18T00:02:21Z","supersedes":[],"prev_event":null,"signature":{"signature_status":"signed_v1","algorithm":"ed25519","key_id":"pith-v1-2026-05","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54","signature_b64":"lS8+rwjrT3mo+4ssixFTeSQWr+bfbggfiOwd/6E7AcuT+Gx4T44/bd00g0z/BfSYXIoRyuMEzbUtxlZM7Bu2Dg==","signed_message":"open_graph_event_sha256_bytes","signed_at":"2026-05-28T18:21:27.080428Z"},"content_sha256":"816b887a96fcd2c1d345a42cbb45211d5dc6dd7f5915b0fd4f11b7770b55820c","schema_version":"1.0","event_id":"sha256:816b887a96fcd2c1d345a42cbb45211d5dc6dd7f5915b0fd4f11b7770b55820c"},{"event_type":"graph_snapshot","subject_pith_number":"pith:2018:VTO6RAOODHSI4ZZIOMIHT5M23D","target":"graph","payload":{"graph_snapshot":{"paper":{"title":"Resolved Kinematics of Runaway and Field OB Stars in the Small Magellanic Cloud","license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","headline":"","cross_cats":[],"primary_cat":"astro-ph.GA","authors_text":"((1) University of Michigan, 2), (2) Leibniz-Institut fuer Astrophysik, (3) University of Virginia, (4) University of Arizona, 5), (5) Gemini Observatory, (6) ESA European Space Astronomy Centre, 7), (7) Instituto de Astrofisica de Canarias), D. J. Lennon (6, G. Besla (4), H. C. Januszewski (1, J. Dorigo Jones (1), M. Moe (4), M. S. Oey (1), N. Castro (1, N. Kallivayalil (3), Potsdam, P. Zivick (3)","submitted_at":"2018-10-15T18:20:48Z","abstract_excerpt":"We use GAIA DR2 proper motions of the RIOTS4 field OB stars in the Small Magellanic Cloud (SMC) to study the kinematics of runaway stars. The data reveal that the SMC Wing has a systemic peculiar motion relative to the SMC Bar of (v_RA, v_Dec) = (62 +/-7, -18+/-5) km/s and relative radial velocity +4.5 +/- 5.0 km/s. This unambiguously demonstrates that these two regions are kinematically distinct: the Wing is moving away from the Bar, and towards the Large Magellanic Cloud with a 3-D velocity of 64 +/- 10 km/s. This is consistent with models for a recent, direct collision between the Clouds. W"},"claims":{"count":0,"items":[],"snapshot_sha256":"258153158e38e3291e3d48162225fcdb2d5a3ed65a07baac614ab91432fd4f57"},"source":{"id":"1810.06596","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":"2026-05-18T00:02:21Z","supersedes":[],"prev_event":null,"signature":{"signature_status":"signed_v1","algorithm":"ed25519","key_id":"pith-v1-2026-05","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54","signature_b64":"X47IKPK1c6+ce1v54n26uO9ch2afooyK1vZe7HGdQ4QUri2iIqByuYX319l+G8T1dyY92Bchu4Tin2d3B8HrCQ==","signed_message":"open_graph_event_sha256_bytes","signed_at":"2026-05-28T18:21:27.080793Z"},"content_sha256":"fcea558696b75ae82c3b1246d8a0d90530159350a96d42217972940a15079125","schema_version":"1.0","event_id":"sha256:fcea558696b75ae82c3b1246d8a0d90530159350a96d42217972940a15079125"}],"timestamp_proofs":[],"mirror_hints":[{"mirror_type":"https","name":"Pith Resolver","base_url":"https://pith.science","bundle_url":"https://pith.science/pith/VTO6RAOODHSI4ZZIOMIHT5M23D/bundle.json","state_url":"https://pith.science/pith/VTO6RAOODHSI4ZZIOMIHT5M23D/state.json","well_known_bundle_url":"https://pith.science/.well-known/pith/VTO6RAOODHSI4ZZIOMIHT5M23D/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":"2026-05-28T18:21:27Z","links":{"resolver":"https://pith.science/pith/VTO6RAOODHSI4ZZIOMIHT5M23D","bundle":"https://pith.science/pith/VTO6RAOODHSI4ZZIOMIHT5M23D/bundle.json","state":"https://pith.science/pith/VTO6RAOODHSI4ZZIOMIHT5M23D/state.json","well_known_bundle":"https://pith.science/.well-known/pith/VTO6RAOODHSI4ZZIOMIHT5M23D/bundle.json"},"state":{"state_type":"pith_open_graph_state","state_version":"1.0","pith_number":"pith:2018:VTO6RAOODHSI4ZZIOMIHT5M23D","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":"b99a52bb99eb141de6dfcf7b477d0271c2b943330b8c2502454b87015baf4342","cross_cats_sorted":[],"license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"astro-ph.GA","submitted_at":"2018-10-15T18:20:48Z","title_canon_sha256":"093fd4af0a090122e9250dffc4ddb1dff4cc52da569fd613cd752111af3f5c1a"},"schema_version":"1.0","source":{"id":"1810.06596","kind":"arxiv","version":2}},"source_aliases":[{"alias_kind":"arxiv","alias_value":"1810.06596","created_at":"2026-05-18T00:02:21Z"},{"alias_kind":"arxiv_version","alias_value":"1810.06596v2","created_at":"2026-05-18T00:02:21Z"},{"alias_kind":"doi","alias_value":"10.48550/arxiv.1810.06596","created_at":"2026-05-18T00:02:21Z"},{"alias_kind":"pith_short_12","alias_value":"VTO6RAOODHSI","created_at":"2026-05-18T12:32:59Z"},{"alias_kind":"pith_short_16","alias_value":"VTO6RAOODHSI4ZZI","created_at":"2026-05-18T12:32:59Z"},{"alias_kind":"pith_short_8","alias_value":"VTO6RAOO","created_at":"2026-05-18T12:32:59Z"}],"graph_snapshots":[{"event_id":"sha256:fcea558696b75ae82c3b1246d8a0d90530159350a96d42217972940a15079125","target":"graph","created_at":"2026-05-18T00:02:21Z","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 use GAIA DR2 proper motions of the RIOTS4 field OB stars in the Small Magellanic Cloud (SMC) to study the kinematics of runaway stars. The data reveal that the SMC Wing has a systemic peculiar motion relative to the SMC Bar of (v_RA, v_Dec) = (62 +/-7, -18+/-5) km/s and relative radial velocity +4.5 +/- 5.0 km/s. This unambiguously demonstrates that these two regions are kinematically distinct: the Wing is moving away from the Bar, and towards the Large Magellanic Cloud with a 3-D velocity of 64 +/- 10 km/s. This is consistent with models for a recent, direct collision between the Clouds. W","authors_text":"((1) University of Michigan, 2), (2) Leibniz-Institut fuer Astrophysik, (3) University of Virginia, (4) University of Arizona, 5), (5) Gemini Observatory, (6) ESA European Space Astronomy Centre, 7), (7) Instituto de Astrofisica de Canarias), D. J. Lennon (6, G. Besla (4), H. C. Januszewski (1, J. Dorigo Jones (1), M. Moe (4), M. S. Oey (1), N. Castro (1, N. Kallivayalil (3), Potsdam, P. Zivick (3)","cross_cats":[],"headline":"","license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"astro-ph.GA","submitted_at":"2018-10-15T18:20:48Z","title":"Resolved Kinematics of Runaway and Field OB Stars in the Small Magellanic Cloud"},"references":{"count":0,"internal_anchors":0,"resolved_work":0,"sample":[],"snapshot_sha256":"258153158e38e3291e3d48162225fcdb2d5a3ed65a07baac614ab91432fd4f57"},"source":{"id":"1810.06596","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":"sha256:816b887a96fcd2c1d345a42cbb45211d5dc6dd7f5915b0fd4f11b7770b55820c","target":"record","created_at":"2026-05-18T00:02:21Z","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":"b99a52bb99eb141de6dfcf7b477d0271c2b943330b8c2502454b87015baf4342","cross_cats_sorted":[],"license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"astro-ph.GA","submitted_at":"2018-10-15T18:20:48Z","title_canon_sha256":"093fd4af0a090122e9250dffc4ddb1dff4cc52da569fd613cd752111af3f5c1a"},"schema_version":"1.0","source":{"id":"1810.06596","kind":"arxiv","version":2}},"canonical_sha256":"acdde881ce19e48e6728731079f59ad8d75470dafee88fcd7ac7114bb9bd0c9d","receipt":{"algorithm":"ed25519","builder_version":"pith-number-builder-2026-05-17-v1","canonical_sha256":"acdde881ce19e48e6728731079f59ad8d75470dafee88fcd7ac7114bb9bd0c9d","first_computed_at":"2026-05-18T00:02:21.947799Z","key_id":"pith-v1-2026-05","kind":"pith_receipt","last_reissued_at":"2026-05-18T00:02:21.947799Z","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54","receipt_version":"0.3","signature_b64":"6LF3RLRidQKz4JxFWsnOhw3ULqonAMKuKOCzsJYNeyY6pBPCfX7GLPnuYVu/CnkdMnLXV5jrT1UfI8mojZhjAQ==","signature_status":"signed_v1","signed_at":"2026-05-18T00:02:21.948381Z","signed_message":"canonical_sha256_bytes"},"source_id":"1810.06596","source_kind":"arxiv","source_version":2}}},"equivocations":[],"invalid_events":[],"applied_event_ids":["sha256:816b887a96fcd2c1d345a42cbb45211d5dc6dd7f5915b0fd4f11b7770b55820c","sha256:fcea558696b75ae82c3b1246d8a0d90530159350a96d42217972940a15079125"],"state_sha256":"858853bb200aca2fe8c4c952d63b1283ad2ed010017b4375a031d46b8582585e"},"bundle_signature":{"signature_status":"signed_v1","algorithm":"ed25519","key_id":"pith-v1-2026-05","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54","signature_b64":"gKHSJ6T2WKppJg+KN1+FxcU9MfER6QmG6LFf9gMzCTQurEyqhh31FBEZCRPcjaHSp5k2WbYD2YmlG6sWNQ7jDw==","signed_message":"bundle_sha256_bytes","signed_at":"2026-05-28T18:21:27.082917Z","bundle_sha256":"2509cc7daa63710c1781988633214404b1f89f95ef20fcccbea13890df6ef95b"}}