{"bundle_type":"pith_open_graph_bundle","bundle_version":"1.0","pith_number":"pith:2010:WLGNOOWIZQVSPJ5LE7SNU2BAL5","short_pith_number":"pith:WLGNOOWI","canonical_record":{"source":{"id":"1001.0576","kind":"arxiv","version":1},"metadata":{"license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"astro-ph.GA","submitted_at":"2010-01-04T21:14:47Z","cross_cats_sorted":[],"title_canon_sha256":"3350e9a665b3f1b58c542256857e0abc75839535025d004fb80829972e2a60c9","abstract_canon_sha256":"1696d41e6b25b1577470d78f43430a9c2c0ef7700d1c413a485d3450cfe5a2eb"},"schema_version":"1.0"},"canonical_sha256":"b2ccd73ac8cc2b27a7ab27e4da68205f7b47ab371d986fc7b3dde6f43d86fee9","source":{"kind":"arxiv","id":"1001.0576","version":1},"source_aliases":[{"alias_kind":"arxiv","alias_value":"1001.0576","created_at":"2026-05-18T02:33:50Z"},{"alias_kind":"arxiv_version","alias_value":"1001.0576v1","created_at":"2026-05-18T02:33:50Z"},{"alias_kind":"doi","alias_value":"10.48550/arxiv.1001.0576","created_at":"2026-05-18T02:33:50Z"},{"alias_kind":"pith_short_12","alias_value":"WLGNOOWIZQVS","created_at":"2026-05-18T12:26:15Z"},{"alias_kind":"pith_short_16","alias_value":"WLGNOOWIZQVSPJ5L","created_at":"2026-05-18T12:26:15Z"},{"alias_kind":"pith_short_8","alias_value":"WLGNOOWI","created_at":"2026-05-18T12:26:15Z"}],"events":[{"event_type":"record_created","subject_pith_number":"pith:2010:WLGNOOWIZQVSPJ5LE7SNU2BAL5","target":"record","payload":{"canonical_record":{"source":{"id":"1001.0576","kind":"arxiv","version":1},"metadata":{"license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"astro-ph.GA","submitted_at":"2010-01-04T21:14:47Z","cross_cats_sorted":[],"title_canon_sha256":"3350e9a665b3f1b58c542256857e0abc75839535025d004fb80829972e2a60c9","abstract_canon_sha256":"1696d41e6b25b1577470d78f43430a9c2c0ef7700d1c413a485d3450cfe5a2eb"},"schema_version":"1.0"},"canonical_sha256":"b2ccd73ac8cc2b27a7ab27e4da68205f7b47ab371d986fc7b3dde6f43d86fee9","receipt":{"kind":"pith_receipt","key_id":"pith-v1-2026-05","algorithm":"ed25519","signed_at":"2026-05-18T02:33:50.290351Z","signature_b64":"R8Kj/nvwKMjn0IFTXGBbTaNB2jZiZB7LgVkHhOWsXfE8QOV1ltnoi491E5OB8fpqwBYFZK9I1gnL7jiD/RYuCg==","signed_message":"canonical_sha256_bytes","builder_version":"pith-number-builder-2026-05-17-v1","receipt_version":"0.3","canonical_sha256":"b2ccd73ac8cc2b27a7ab27e4da68205f7b47ab371d986fc7b3dde6f43d86fee9","last_reissued_at":"2026-05-18T02:33:50.289893Z","signature_status":"signed_v1","first_computed_at":"2026-05-18T02:33:50.289893Z","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54"},"source_kind":"arxiv","source_id":"1001.0576","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":"2026-05-18T02:33:50Z","supersedes":[],"prev_event":null,"signature":{"signature_status":"signed_v1","algorithm":"ed25519","key_id":"pith-v1-2026-05","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54","signature_b64":"FaD833JHpb1OEdr8QouVQRZ8dN1uVKfQ0nC9eNw83P5FP3zoTpd0F/+Q8pmzmBxrzVyAqjNBVEQbUxnG+HWlBw==","signed_message":"open_graph_event_sha256_bytes","signed_at":"2026-05-26T12:37:55.452694Z"},"content_sha256":"dc6a8faa060687feeb7e54001b71e164d3729a01a9fc3abd89ca8b9c42127284","schema_version":"1.0","event_id":"sha256:dc6a8faa060687feeb7e54001b71e164d3729a01a9fc3abd89ca8b9c42127284"},{"event_type":"graph_snapshot","subject_pith_number":"pith:2010:WLGNOOWIZQVSPJ5LE7SNU2BAL5","target":"graph","payload":{"graph_snapshot":{"paper":{"title":"The Orbit of the Orphan Stream","license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","headline":"","cross_cats":[],"primary_cat":"astro-ph.GA","authors_text":"Benjamin A. Willett, Brian Yanny, Heidi Jo Newberg, Yan Xu","submitted_at":"2010-01-04T21:14:47Z","abstract_excerpt":"We use recent SEGUE spectroscopy and SDSS and SEGUE imaging data to measure the sky position, distance, and radial velocities of stars in the tidal debris stream that is commonly referred to as the \"Orphan Stream.\" We fit orbital parameters to the data, and find a prograde orbit with an apogalacticon, perigalacticon, and eccentricity of 90 kpc, 16.4 kpc and 0.7, respectively. Neither the dwarf galaxy UMa II nor the Complex A gas cloud have velocities consistent with a kinematic association with the Orphan Stream. It is possible that Segue-1 is associated with the Orphan Stream, but no other kn"},"claims":{"count":0,"items":[],"snapshot_sha256":"258153158e38e3291e3d48162225fcdb2d5a3ed65a07baac614ab91432fd4f57"},"source":{"id":"1001.0576","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":"2026-05-18T02:33:50Z","supersedes":[],"prev_event":null,"signature":{"signature_status":"signed_v1","algorithm":"ed25519","key_id":"pith-v1-2026-05","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54","signature_b64":"IhRl/6YQ/4ornsns7L7K9KkvLPbuxho58z0VQBIMZ3aSvVnOtJGS7m+/95H5KWQLGldcj+aDIkKsYN9e1BCQDA==","signed_message":"open_graph_event_sha256_bytes","signed_at":"2026-05-26T12:37:55.453361Z"},"content_sha256":"0a7b1eed361a7de1c5c48adf1da94fc641e658700f98cd8337b0d0547c2d3429","schema_version":"1.0","event_id":"sha256:0a7b1eed361a7de1c5c48adf1da94fc641e658700f98cd8337b0d0547c2d3429"}],"timestamp_proofs":[],"mirror_hints":[{"mirror_type":"https","name":"Pith Resolver","base_url":"https://pith.science","bundle_url":"https://pith.science/pith/WLGNOOWIZQVSPJ5LE7SNU2BAL5/bundle.json","state_url":"https://pith.science/pith/WLGNOOWIZQVSPJ5LE7SNU2BAL5/state.json","well_known_bundle_url":"https://pith.science/.well-known/pith/WLGNOOWIZQVSPJ5LE7SNU2BAL5/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":"2026-05-26T12:37:55Z","links":{"resolver":"https://pith.science/pith/WLGNOOWIZQVSPJ5LE7SNU2BAL5","bundle":"https://pith.science/pith/WLGNOOWIZQVSPJ5LE7SNU2BAL5/bundle.json","state":"https://pith.science/pith/WLGNOOWIZQVSPJ5LE7SNU2BAL5/state.json","well_known_bundle":"https://pith.science/.well-known/pith/WLGNOOWIZQVSPJ5LE7SNU2BAL5/bundle.json"},"state":{"state_type":"pith_open_graph_state","state_version":"1.0","pith_number":"pith:2010:WLGNOOWIZQVSPJ5LE7SNU2BAL5","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":"1696d41e6b25b1577470d78f43430a9c2c0ef7700d1c413a485d3450cfe5a2eb","cross_cats_sorted":[],"license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"astro-ph.GA","submitted_at":"2010-01-04T21:14:47Z","title_canon_sha256":"3350e9a665b3f1b58c542256857e0abc75839535025d004fb80829972e2a60c9"},"schema_version":"1.0","source":{"id":"1001.0576","kind":"arxiv","version":1}},"source_aliases":[{"alias_kind":"arxiv","alias_value":"1001.0576","created_at":"2026-05-18T02:33:50Z"},{"alias_kind":"arxiv_version","alias_value":"1001.0576v1","created_at":"2026-05-18T02:33:50Z"},{"alias_kind":"doi","alias_value":"10.48550/arxiv.1001.0576","created_at":"2026-05-18T02:33:50Z"},{"alias_kind":"pith_short_12","alias_value":"WLGNOOWIZQVS","created_at":"2026-05-18T12:26:15Z"},{"alias_kind":"pith_short_16","alias_value":"WLGNOOWIZQVSPJ5L","created_at":"2026-05-18T12:26:15Z"},{"alias_kind":"pith_short_8","alias_value":"WLGNOOWI","created_at":"2026-05-18T12:26:15Z"}],"graph_snapshots":[{"event_id":"sha256:0a7b1eed361a7de1c5c48adf1da94fc641e658700f98cd8337b0d0547c2d3429","target":"graph","created_at":"2026-05-18T02:33:50Z","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":0,"items":[],"snapshot_sha256":"258153158e38e3291e3d48162225fcdb2d5a3ed65a07baac614ab91432fd4f57"},"formal_canon":{"evidence_count":0,"snapshot_sha256":"258153158e38e3291e3d48162225fcdb2d5a3ed65a07baac614ab91432fd4f57"},"paper":{"abstract_excerpt":"We use recent SEGUE spectroscopy and SDSS and SEGUE imaging data to measure the sky position, distance, and radial velocities of stars in the tidal debris stream that is commonly referred to as the \"Orphan Stream.\" We fit orbital parameters to the data, and find a prograde orbit with an apogalacticon, perigalacticon, and eccentricity of 90 kpc, 16.4 kpc and 0.7, respectively. Neither the dwarf galaxy UMa II nor the Complex A gas cloud have velocities consistent with a kinematic association with the Orphan Stream. It is possible that Segue-1 is associated with the Orphan Stream, but no other kn","authors_text":"Benjamin A. Willett, Brian Yanny, Heidi Jo Newberg, Yan Xu","cross_cats":[],"headline":"","license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"astro-ph.GA","submitted_at":"2010-01-04T21:14:47Z","title":"The Orbit of the Orphan Stream"},"references":{"count":0,"internal_anchors":0,"resolved_work":0,"sample":[],"snapshot_sha256":"258153158e38e3291e3d48162225fcdb2d5a3ed65a07baac614ab91432fd4f57"},"source":{"id":"1001.0576","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:dc6a8faa060687feeb7e54001b71e164d3729a01a9fc3abd89ca8b9c42127284","target":"record","created_at":"2026-05-18T02:33:50Z","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":"1696d41e6b25b1577470d78f43430a9c2c0ef7700d1c413a485d3450cfe5a2eb","cross_cats_sorted":[],"license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"astro-ph.GA","submitted_at":"2010-01-04T21:14:47Z","title_canon_sha256":"3350e9a665b3f1b58c542256857e0abc75839535025d004fb80829972e2a60c9"},"schema_version":"1.0","source":{"id":"1001.0576","kind":"arxiv","version":1}},"canonical_sha256":"b2ccd73ac8cc2b27a7ab27e4da68205f7b47ab371d986fc7b3dde6f43d86fee9","receipt":{"algorithm":"ed25519","builder_version":"pith-number-builder-2026-05-17-v1","canonical_sha256":"b2ccd73ac8cc2b27a7ab27e4da68205f7b47ab371d986fc7b3dde6f43d86fee9","first_computed_at":"2026-05-18T02:33:50.289893Z","key_id":"pith-v1-2026-05","kind":"pith_receipt","last_reissued_at":"2026-05-18T02:33:50.289893Z","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54","receipt_version":"0.3","signature_b64":"R8Kj/nvwKMjn0IFTXGBbTaNB2jZiZB7LgVkHhOWsXfE8QOV1ltnoi491E5OB8fpqwBYFZK9I1gnL7jiD/RYuCg==","signature_status":"signed_v1","signed_at":"2026-05-18T02:33:50.290351Z","signed_message":"canonical_sha256_bytes"},"source_id":"1001.0576","source_kind":"arxiv","source_version":1}}},"equivocations":[],"invalid_events":[],"applied_event_ids":["sha256:dc6a8faa060687feeb7e54001b71e164d3729a01a9fc3abd89ca8b9c42127284","sha256:0a7b1eed361a7de1c5c48adf1da94fc641e658700f98cd8337b0d0547c2d3429"],"state_sha256":"811105788a2adc0b8a7dc7b2ef8f8e819588f8e5acd0c36795e1483dfb60b537"},"bundle_signature":{"signature_status":"signed_v1","algorithm":"ed25519","key_id":"pith-v1-2026-05","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54","signature_b64":"qgFFfv2kLKcOCF5bcoL0kYU4ndtG2YSjaNfk9MpHEqHggyQjeL4voHpVGQ2wwUWuBavzEcOlBppfapOqOQwlCA==","signed_message":"bundle_sha256_bytes","signed_at":"2026-05-26T12:37:55.457062Z","bundle_sha256":"1740af6b859243b1599a3dc714d497492f51693defe15f387807089de9b5726c"}}