{"record_type":"pith_number_record","schema_url":"https://pith.science/schemas/pith-number/v1.json","pith_number":"pith:2012:EUHBRZL2FYFXJVQLW2P77LTRPK","short_pith_number":"pith:EUHBRZL2","schema_version":"1.0","canonical_sha256":"250e18e57a2e0b74d60bb69fffae717a8ce328f848724d0bef864a847f1ba4a2","source":{"kind":"arxiv","id":"1209.2272","version":1},"attestation_state":"computed","paper":{"title":"New observations of the gas cloud G2 in the Galactic Center","license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","headline":"","cross_cats":[],"primary_cat":"astro-ph.GA","authors_text":"A. Burkert, F. Eisenhauer, J. Cuadra, M. Schartmann, O. Pfuhl, R. Genzel, S. Gillessen, T.K. Fritz, T. Ott","submitted_at":"2012-09-11T09:43:27Z","abstract_excerpt":"We present new observations of the recently discovered gas cloud G2 currently falling towards the massive black hole in the Galactic Center. The new data confirm that G2 is on a highly elliptical orbit with a predicted pericenter passage mid 2013. The updated orbit has an even larger eccentricity of 0.966, an epoch of pericenter two months later than estimated before, and a nominal minimum distance of 2200 Schwarzschild radii only. The velocity gradient of G2 has developed further to 600 km/s FWHM in summer 2012. We also detect the tail of similar total flux and on the same orbit as G2 along t"},"verification_status":{"content_addressed":true,"pith_receipt":true,"author_attested":false,"weak_author_claims":0,"strong_author_claims":0,"externally_anchored":false,"storage_verified":false,"citation_signatures":0,"replication_records":0,"graph_snapshot":true,"references_resolved":false,"formal_links_present":false},"canonical_record":{"source":{"id":"1209.2272","kind":"arxiv","version":1},"metadata":{"license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"astro-ph.GA","submitted_at":"2012-09-11T09:43:27Z","cross_cats_sorted":[],"title_canon_sha256":"4ff43f2789645436d2dac9e085c3df3e24ed85934cfe775d70eeceedccf4e395","abstract_canon_sha256":"c8f65a1f5be26fe2465d46b557aa0ef93a4703ba09a789790dc4ad7ab97b7d45"},"schema_version":"1.0"},"receipt":{"kind":"pith_receipt","key_id":"pith-v1-2026-05","algorithm":"ed25519","signed_at":"2026-05-18T01:54:30.623510Z","signature_b64":"AOoh48e4wIucSo2YMkY12gwka9gDNupzRY06dVlEdpTkKd6/jkMNgRPDe5Zzajvf8Qq/owLWeS/iVCxnfHofCw==","signed_message":"canonical_sha256_bytes","builder_version":"pith-number-builder-2026-05-17-v1","receipt_version":"0.3","canonical_sha256":"250e18e57a2e0b74d60bb69fffae717a8ce328f848724d0bef864a847f1ba4a2","last_reissued_at":"2026-05-18T01:54:30.622986Z","signature_status":"signed_v1","first_computed_at":"2026-05-18T01:54:30.622986Z","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54"},"graph_snapshot":{"paper":{"title":"New observations of the gas cloud G2 in the Galactic Center","license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","headline":"","cross_cats":[],"primary_cat":"astro-ph.GA","authors_text":"A. Burkert, F. Eisenhauer, J. Cuadra, M. Schartmann, O. Pfuhl, R. Genzel, S. Gillessen, T.K. Fritz, T. Ott","submitted_at":"2012-09-11T09:43:27Z","abstract_excerpt":"We present new observations of the recently discovered gas cloud G2 currently falling towards the massive black hole in the Galactic Center. The new data confirm that G2 is on a highly elliptical orbit with a predicted pericenter passage mid 2013. The updated orbit has an even larger eccentricity of 0.966, an epoch of pericenter two months later than estimated before, and a nominal minimum distance of 2200 Schwarzschild radii only. The velocity gradient of G2 has developed further to 600 km/s FWHM in summer 2012. We also detect the tail of similar total flux and on the same orbit as G2 along t"},"claims":{"count":0,"items":[],"snapshot_sha256":"258153158e38e3291e3d48162225fcdb2d5a3ed65a07baac614ab91432fd4f57"},"source":{"id":"1209.2272","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"},"aliases":[{"alias_kind":"arxiv","alias_value":"1209.2272","created_at":"2026-05-18T01:54:30.623058+00:00"},{"alias_kind":"arxiv_version","alias_value":"1209.2272v1","created_at":"2026-05-18T01:54:30.623058+00:00"},{"alias_kind":"doi","alias_value":"10.48550/arxiv.1209.2272","created_at":"2026-05-18T01:54:30.623058+00:00"},{"alias_kind":"pith_short_12","alias_value":"EUHBRZL2FYFX","created_at":"2026-05-18T12:27:04.183437+00:00"},{"alias_kind":"pith_short_16","alias_value":"EUHBRZL2FYFXJVQL","created_at":"2026-05-18T12:27:04.183437+00:00"},{"alias_kind":"pith_short_8","alias_value":"EUHBRZL2","created_at":"2026-05-18T12:27:04.183437+00:00"}],"events":[],"event_summary":{},"paper_claims":[],"inbound_citations":{"count":1,"internal_anchor_count":1,"sample":[{"citing_arxiv_id":"2603.19083","citing_title":"G objects as Primordial Black Hole-Neutron Star Remnants: Population Modeling and Multi-Wavelength Observables","ref_index":110,"is_internal_anchor":true}]},"formal_canon":{"evidence_count":0,"sample":[],"anchors":[]},"links":{"html":"https://pith.science/pith/EUHBRZL2FYFXJVQLW2P77LTRPK","json":"https://pith.science/pith/EUHBRZL2FYFXJVQLW2P77LTRPK.json","graph_json":"https://pith.science/api/pith-number/EUHBRZL2FYFXJVQLW2P77LTRPK/graph.json","events_json":"https://pith.science/api/pith-number/EUHBRZL2FYFXJVQLW2P77LTRPK/events.json","paper":"https://pith.science/paper/EUHBRZL2"},"agent_actions":{"view_html":"https://pith.science/pith/EUHBRZL2FYFXJVQLW2P77LTRPK","download_json":"https://pith.science/pith/EUHBRZL2FYFXJVQLW2P77LTRPK.json","view_paper":"https://pith.science/paper/EUHBRZL2","resolve_alias":"https://pith.science/api/pith-number/resolve?arxiv=1209.2272&json=true","fetch_graph":"https://pith.science/api/pith-number/EUHBRZL2FYFXJVQLW2P77LTRPK/graph.json","fetch_events":"https://pith.science/api/pith-number/EUHBRZL2FYFXJVQLW2P77LTRPK/events.json","actions":{"anchor_timestamp":"https://pith.science/pith/EUHBRZL2FYFXJVQLW2P77LTRPK/action/timestamp_anchor","attest_storage":"https://pith.science/pith/EUHBRZL2FYFXJVQLW2P77LTRPK/action/storage_attestation","attest_author":"https://pith.science/pith/EUHBRZL2FYFXJVQLW2P77LTRPK/action/author_attestation","sign_citation":"https://pith.science/pith/EUHBRZL2FYFXJVQLW2P77LTRPK/action/citation_signature","submit_replication":"https://pith.science/pith/EUHBRZL2FYFXJVQLW2P77LTRPK/action/replication_record"}},"created_at":"2026-05-18T01:54:30.623058+00:00","updated_at":"2026-05-18T01:54:30.623058+00:00"}