{"record_type":"pith_number_record","schema_url":"https://pith.science/schemas/pith-number/v1.json","pith_number":"pith:2016:B7LUEJQ73LBGRMNSKJRWRE3M4F","short_pith_number":"pith:B7LUEJQ7","schema_version":"1.0","canonical_sha256":"0fd742261fdac268b1b2526368936ce177a728b428f07f1467f213ae1bdc4956","source":{"kind":"arxiv","id":"1609.06803","version":2},"attestation_state":"computed","paper":{"title":"Fully pseudospectral solution of the conformally invariant wave equation near the cylinder at spacelike infinity. II: Schwarzschild background","license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","headline":"","cross_cats":[],"primary_cat":"gr-qc","authors_text":"J\\\"org Frauendiener, J\\\"org Hennig","submitted_at":"2016-09-22T02:48:03Z","abstract_excerpt":"It has recently been demonstrated (Class. Quantum Grav. 31, 085010, 2014) that the conformally invariant wave equation on a Minkowski background can be solved with a fully pseudospectral numerical method. In particular, it is possible to include spacelike infinity into the numerical domain, which is appropriately represented as a cylinder, and highly accurate numerical solutions can be obtained with a moderate number of gridpoints. In this paper, we generalise these considerations to the spherically-symmetric wave equation on a Schwarzschild background. In the Minkowski case, a logarithmic sin"},"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":"1609.06803","kind":"arxiv","version":2},"metadata":{"license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"gr-qc","submitted_at":"2016-09-22T02:48:03Z","cross_cats_sorted":[],"title_canon_sha256":"8838275c46d9240da05dab6a231ec7a03bab7ea1de919152ecf7b912e2a3432f","abstract_canon_sha256":"56ed851b36cd03676fb5862dc7fa77a8c3f6c25089903c27aa71403337331204"},"schema_version":"1.0"},"receipt":{"kind":"pith_receipt","key_id":"pith-v1-2026-05","algorithm":"ed25519","signed_at":"2026-05-18T00:52:08.160143Z","signature_b64":"145dL6Ns9h2/T39oDscVULseT2nAAqUsBhW8u7Lq9T7spsvTjp9RZjoe3SLkwvu9VlsfvbMDNLweRUENezATBQ==","signed_message":"canonical_sha256_bytes","builder_version":"pith-number-builder-2026-05-17-v1","receipt_version":"0.3","canonical_sha256":"0fd742261fdac268b1b2526368936ce177a728b428f07f1467f213ae1bdc4956","last_reissued_at":"2026-05-18T00:52:08.158558Z","signature_status":"signed_v1","first_computed_at":"2026-05-18T00:52:08.158558Z","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54"},"graph_snapshot":{"paper":{"title":"Fully pseudospectral solution of the conformally invariant wave equation near the cylinder at spacelike infinity. II: Schwarzschild background","license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","headline":"","cross_cats":[],"primary_cat":"gr-qc","authors_text":"J\\\"org Frauendiener, J\\\"org Hennig","submitted_at":"2016-09-22T02:48:03Z","abstract_excerpt":"It has recently been demonstrated (Class. Quantum Grav. 31, 085010, 2014) that the conformally invariant wave equation on a Minkowski background can be solved with a fully pseudospectral numerical method. In particular, it is possible to include spacelike infinity into the numerical domain, which is appropriately represented as a cylinder, and highly accurate numerical solutions can be obtained with a moderate number of gridpoints. In this paper, we generalise these considerations to the spherically-symmetric wave equation on a Schwarzschild background. In the Minkowski case, a logarithmic sin"},"claims":{"count":0,"items":[],"snapshot_sha256":"258153158e38e3291e3d48162225fcdb2d5a3ed65a07baac614ab91432fd4f57"},"source":{"id":"1609.06803","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"},"aliases":[{"alias_kind":"arxiv","alias_value":"1609.06803","created_at":"2026-05-18T00:52:08.158634+00:00"},{"alias_kind":"arxiv_version","alias_value":"1609.06803v2","created_at":"2026-05-18T00:52:08.158634+00:00"},{"alias_kind":"doi","alias_value":"10.48550/arxiv.1609.06803","created_at":"2026-05-18T00:52:08.158634+00:00"},{"alias_kind":"pith_short_12","alias_value":"B7LUEJQ73LBG","created_at":"2026-05-18T12:30:07.202191+00:00"},{"alias_kind":"pith_short_16","alias_value":"B7LUEJQ73LBGRMNS","created_at":"2026-05-18T12:30:07.202191+00:00"},{"alias_kind":"pith_short_8","alias_value":"B7LUEJQ7","created_at":"2026-05-18T12:30:07.202191+00:00"}],"events":[],"event_summary":{},"paper_claims":[],"inbound_citations":{"count":0,"internal_anchor_count":0,"sample":[]},"formal_canon":{"evidence_count":0,"sample":[],"anchors":[]},"links":{"html":"https://pith.science/pith/B7LUEJQ73LBGRMNSKJRWRE3M4F","json":"https://pith.science/pith/B7LUEJQ73LBGRMNSKJRWRE3M4F.json","graph_json":"https://pith.science/api/pith-number/B7LUEJQ73LBGRMNSKJRWRE3M4F/graph.json","events_json":"https://pith.science/api/pith-number/B7LUEJQ73LBGRMNSKJRWRE3M4F/events.json","paper":"https://pith.science/paper/B7LUEJQ7"},"agent_actions":{"view_html":"https://pith.science/pith/B7LUEJQ73LBGRMNSKJRWRE3M4F","download_json":"https://pith.science/pith/B7LUEJQ73LBGRMNSKJRWRE3M4F.json","view_paper":"https://pith.science/paper/B7LUEJQ7","resolve_alias":"https://pith.science/api/pith-number/resolve?arxiv=1609.06803&json=true","fetch_graph":"https://pith.science/api/pith-number/B7LUEJQ73LBGRMNSKJRWRE3M4F/graph.json","fetch_events":"https://pith.science/api/pith-number/B7LUEJQ73LBGRMNSKJRWRE3M4F/events.json","actions":{"anchor_timestamp":"https://pith.science/pith/B7LUEJQ73LBGRMNSKJRWRE3M4F/action/timestamp_anchor","attest_storage":"https://pith.science/pith/B7LUEJQ73LBGRMNSKJRWRE3M4F/action/storage_attestation","attest_author":"https://pith.science/pith/B7LUEJQ73LBGRMNSKJRWRE3M4F/action/author_attestation","sign_citation":"https://pith.science/pith/B7LUEJQ73LBGRMNSKJRWRE3M4F/action/citation_signature","submit_replication":"https://pith.science/pith/B7LUEJQ73LBGRMNSKJRWRE3M4F/action/replication_record"}},"created_at":"2026-05-18T00:52:08.158634+00:00","updated_at":"2026-05-18T00:52:08.158634+00:00"}