{"bundle_type":"pith_open_graph_bundle","bundle_version":"1.0","pith_number":"pith:2013:KRWQXO4BCNOJOT3UN2ZSIDSVVY","short_pith_number":"pith:KRWQXO4B","canonical_record":{"source":{"id":"1310.5744","kind":"arxiv","version":1},"metadata":{"license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"astro-ph.IM","submitted_at":"2013-10-21T22:17:36Z","cross_cats_sorted":["astro-ph.GA"],"title_canon_sha256":"448f2cc5473a750838a7a45bd79f1e8982e908641bcf2ab5ab2191b2f08f1494","abstract_canon_sha256":"07d8a85c425f4defcbfdb057b0d5a8863fa6200fa60942e9bbfb5b45aa5df915"},"schema_version":"1.0"},"canonical_sha256":"546d0bbb81135c974f746eb3240e55ae3b936d99edf42506c3fad4b8448da7d7","source":{"kind":"arxiv","id":"1310.5744","version":1},"source_aliases":[{"alias_kind":"arxiv","alias_value":"1310.5744","created_at":"2026-05-18T01:46:56Z"},{"alias_kind":"arxiv_version","alias_value":"1310.5744v1","created_at":"2026-05-18T01:46:56Z"},{"alias_kind":"doi","alias_value":"10.48550/arxiv.1310.5744","created_at":"2026-05-18T01:46:56Z"},{"alias_kind":"pith_short_12","alias_value":"KRWQXO4BCNOJ","created_at":"2026-05-18T12:27:51Z"},{"alias_kind":"pith_short_16","alias_value":"KRWQXO4BCNOJOT3U","created_at":"2026-05-18T12:27:51Z"},{"alias_kind":"pith_short_8","alias_value":"KRWQXO4B","created_at":"2026-05-18T12:27:51Z"}],"events":[{"event_type":"record_created","subject_pith_number":"pith:2013:KRWQXO4BCNOJOT3UN2ZSIDSVVY","target":"record","payload":{"canonical_record":{"source":{"id":"1310.5744","kind":"arxiv","version":1},"metadata":{"license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"astro-ph.IM","submitted_at":"2013-10-21T22:17:36Z","cross_cats_sorted":["astro-ph.GA"],"title_canon_sha256":"448f2cc5473a750838a7a45bd79f1e8982e908641bcf2ab5ab2191b2f08f1494","abstract_canon_sha256":"07d8a85c425f4defcbfdb057b0d5a8863fa6200fa60942e9bbfb5b45aa5df915"},"schema_version":"1.0"},"canonical_sha256":"546d0bbb81135c974f746eb3240e55ae3b936d99edf42506c3fad4b8448da7d7","receipt":{"kind":"pith_receipt","key_id":"pith-v1-2026-05","algorithm":"ed25519","signed_at":"2026-05-18T01:46:56.581614Z","signature_b64":"ISIab2LxoWpCckwvb0/B4rtcn9pCwsZYh+ctfxaapoPkp9gKjXQrseMyo3Z3uRO2YiwptDB+nCljSCZ+MXm8AQ==","signed_message":"canonical_sha256_bytes","builder_version":"pith-number-builder-2026-05-17-v1","receipt_version":"0.3","canonical_sha256":"546d0bbb81135c974f746eb3240e55ae3b936d99edf42506c3fad4b8448da7d7","last_reissued_at":"2026-05-18T01:46:56.580945Z","signature_status":"signed_v1","first_computed_at":"2026-05-18T01:46:56.580945Z","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54"},"source_kind":"arxiv","source_id":"1310.5744","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":"2026-05-18T01:46:56Z","supersedes":[],"prev_event":null,"signature":{"signature_status":"signed_v1","algorithm":"ed25519","key_id":"pith-v1-2026-05","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54","signature_b64":"rbcdJJhiFp/2CRZeOIQObeG2dIfMYgQ5F9shZU85ExTgwm9vO7QtaA3c1d+m9Mikj6se+iG5pQq1+koTgweKAw==","signed_message":"open_graph_event_sha256_bytes","signed_at":"2026-05-27T14:46:10.037781Z"},"content_sha256":"340d8469a87ae032c15eadcea195e85b71140448f7000d502a54a3f9e9f10dbb","schema_version":"1.0","event_id":"sha256:340d8469a87ae032c15eadcea195e85b71140448f7000d502a54a3f9e9f10dbb"},{"event_type":"graph_snapshot","subject_pith_number":"pith:2013:KRWQXO4BCNOJOT3UN2ZSIDSVVY","target":"graph","payload":{"graph_snapshot":{"paper":{"title":"Astrometry in the Galactic Center with the Thirty Meter Telescope","license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","headline":"","cross_cats":["astro-ph.GA"],"primary_cat":"astro-ph.IM","authors_text":"Andrea Ghez, Leo Meyer, Sylvana Yelda, Tuan Do","submitted_at":"2013-10-21T22:17:36Z","abstract_excerpt":"We report on the expected astrometric performance of the Thirty Meter Telescope's InfraRed Imaging Spectrometer (IRIS) as determined using simulated images of the Galactic center. This region of the Galaxy harbors a supermassive black hole and a dense nuclear stellar cluster, thus providing an ideal laboratory for testing crowded-field astrometry with the IRIS imager. Understanding the sources of astrometric error is also important for making precision measurements of the short-period stars orbiting the supermassive black hole in order to probe the curvature of space-time as predicted by Gener"},"claims":{"count":0,"items":[],"snapshot_sha256":"258153158e38e3291e3d48162225fcdb2d5a3ed65a07baac614ab91432fd4f57"},"source":{"id":"1310.5744","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":"2026-05-18T01:46:56Z","supersedes":[],"prev_event":null,"signature":{"signature_status":"signed_v1","algorithm":"ed25519","key_id":"pith-v1-2026-05","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54","signature_b64":"kX8bqiCK5uBtd75ljT8HCf9T3NxMZLoog3IBPn1HPOuCL4vpirZeuFyw5Eu73WsWnXbsEGBjBlHyaN48LoG8Aw==","signed_message":"open_graph_event_sha256_bytes","signed_at":"2026-05-27T14:46:10.038235Z"},"content_sha256":"b46138821d2e531919bde9f9bd9d8ee8b4a7983089ee4b5d6d8bc459fe128d64","schema_version":"1.0","event_id":"sha256:b46138821d2e531919bde9f9bd9d8ee8b4a7983089ee4b5d6d8bc459fe128d64"}],"timestamp_proofs":[],"mirror_hints":[{"mirror_type":"https","name":"Pith Resolver","base_url":"https://pith.science","bundle_url":"https://pith.science/pith/KRWQXO4BCNOJOT3UN2ZSIDSVVY/bundle.json","state_url":"https://pith.science/pith/KRWQXO4BCNOJOT3UN2ZSIDSVVY/state.json","well_known_bundle_url":"https://pith.science/.well-known/pith/KRWQXO4BCNOJOT3UN2ZSIDSVVY/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":"2026-05-27T14:46:10Z","links":{"resolver":"https://pith.science/pith/KRWQXO4BCNOJOT3UN2ZSIDSVVY","bundle":"https://pith.science/pith/KRWQXO4BCNOJOT3UN2ZSIDSVVY/bundle.json","state":"https://pith.science/pith/KRWQXO4BCNOJOT3UN2ZSIDSVVY/state.json","well_known_bundle":"https://pith.science/.well-known/pith/KRWQXO4BCNOJOT3UN2ZSIDSVVY/bundle.json"},"state":{"state_type":"pith_open_graph_state","state_version":"1.0","pith_number":"pith:2013:KRWQXO4BCNOJOT3UN2ZSIDSVVY","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":"07d8a85c425f4defcbfdb057b0d5a8863fa6200fa60942e9bbfb5b45aa5df915","cross_cats_sorted":["astro-ph.GA"],"license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"astro-ph.IM","submitted_at":"2013-10-21T22:17:36Z","title_canon_sha256":"448f2cc5473a750838a7a45bd79f1e8982e908641bcf2ab5ab2191b2f08f1494"},"schema_version":"1.0","source":{"id":"1310.5744","kind":"arxiv","version":1}},"source_aliases":[{"alias_kind":"arxiv","alias_value":"1310.5744","created_at":"2026-05-18T01:46:56Z"},{"alias_kind":"arxiv_version","alias_value":"1310.5744v1","created_at":"2026-05-18T01:46:56Z"},{"alias_kind":"doi","alias_value":"10.48550/arxiv.1310.5744","created_at":"2026-05-18T01:46:56Z"},{"alias_kind":"pith_short_12","alias_value":"KRWQXO4BCNOJ","created_at":"2026-05-18T12:27:51Z"},{"alias_kind":"pith_short_16","alias_value":"KRWQXO4BCNOJOT3U","created_at":"2026-05-18T12:27:51Z"},{"alias_kind":"pith_short_8","alias_value":"KRWQXO4B","created_at":"2026-05-18T12:27:51Z"}],"graph_snapshots":[{"event_id":"sha256:b46138821d2e531919bde9f9bd9d8ee8b4a7983089ee4b5d6d8bc459fe128d64","target":"graph","created_at":"2026-05-18T01:46:56Z","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 report on the expected astrometric performance of the Thirty Meter Telescope's InfraRed Imaging Spectrometer (IRIS) as determined using simulated images of the Galactic center. This region of the Galaxy harbors a supermassive black hole and a dense nuclear stellar cluster, thus providing an ideal laboratory for testing crowded-field astrometry with the IRIS imager. Understanding the sources of astrometric error is also important for making precision measurements of the short-period stars orbiting the supermassive black hole in order to probe the curvature of space-time as predicted by Gener","authors_text":"Andrea Ghez, Leo Meyer, Sylvana Yelda, Tuan Do","cross_cats":["astro-ph.GA"],"headline":"","license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"astro-ph.IM","submitted_at":"2013-10-21T22:17:36Z","title":"Astrometry in the Galactic Center with the Thirty Meter Telescope"},"references":{"count":0,"internal_anchors":0,"resolved_work":0,"sample":[],"snapshot_sha256":"258153158e38e3291e3d48162225fcdb2d5a3ed65a07baac614ab91432fd4f57"},"source":{"id":"1310.5744","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":"sha256:340d8469a87ae032c15eadcea195e85b71140448f7000d502a54a3f9e9f10dbb","target":"record","created_at":"2026-05-18T01:46:56Z","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":"07d8a85c425f4defcbfdb057b0d5a8863fa6200fa60942e9bbfb5b45aa5df915","cross_cats_sorted":["astro-ph.GA"],"license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"astro-ph.IM","submitted_at":"2013-10-21T22:17:36Z","title_canon_sha256":"448f2cc5473a750838a7a45bd79f1e8982e908641bcf2ab5ab2191b2f08f1494"},"schema_version":"1.0","source":{"id":"1310.5744","kind":"arxiv","version":1}},"canonical_sha256":"546d0bbb81135c974f746eb3240e55ae3b936d99edf42506c3fad4b8448da7d7","receipt":{"algorithm":"ed25519","builder_version":"pith-number-builder-2026-05-17-v1","canonical_sha256":"546d0bbb81135c974f746eb3240e55ae3b936d99edf42506c3fad4b8448da7d7","first_computed_at":"2026-05-18T01:46:56.580945Z","key_id":"pith-v1-2026-05","kind":"pith_receipt","last_reissued_at":"2026-05-18T01:46:56.580945Z","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54","receipt_version":"0.3","signature_b64":"ISIab2LxoWpCckwvb0/B4rtcn9pCwsZYh+ctfxaapoPkp9gKjXQrseMyo3Z3uRO2YiwptDB+nCljSCZ+MXm8AQ==","signature_status":"signed_v1","signed_at":"2026-05-18T01:46:56.581614Z","signed_message":"canonical_sha256_bytes"},"source_id":"1310.5744","source_kind":"arxiv","source_version":1}}},"equivocations":[],"invalid_events":[],"applied_event_ids":["sha256:340d8469a87ae032c15eadcea195e85b71140448f7000d502a54a3f9e9f10dbb","sha256:b46138821d2e531919bde9f9bd9d8ee8b4a7983089ee4b5d6d8bc459fe128d64"],"state_sha256":"601ef94251c859f13639b3d80d2c966c71915bd122e75cad8dc4475a666b3df9"},"bundle_signature":{"signature_status":"signed_v1","algorithm":"ed25519","key_id":"pith-v1-2026-05","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54","signature_b64":"sFYWAWribN6Yag7IJsTAGc67WLDIMmjvWPSa5ORl+4mmvSJbMfeZ+7RnAf6nUWzDQfoE5YUrUur1gAdvPUA0Aw==","signed_message":"bundle_sha256_bytes","signed_at":"2026-05-27T14:46:10.041017Z","bundle_sha256":"f85a1496d339e13ae5d37f9c30704b7bb7da3d7ec9886f9bd843c06f39f067db"}}