{"bundle_type":"pith_open_graph_bundle","bundle_version":"1.0","pith_number":"pith:2023:U4DZ2U2BRVTQZLMRSZUXXRKXNB","short_pith_number":"pith:U4DZ2U2B","canonical_record":{"source":{"id":"2303.08153","kind":"arxiv","version":1},"metadata":{"license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"gr-qc","submitted_at":"2023-03-14T18:00:28Z","cross_cats_sorted":["astro-ph.HE","cs.NA","math.NA"],"title_canon_sha256":"351330daa09bac587209d52de9011afff5653dc5d78c450c5e0ed40e859427e4","abstract_canon_sha256":"e9e466915be1bc3f2f77910f2cab3a88bb3026e37e691ead31c638ff7ea74a16"},"schema_version":"1.0"},"canonical_sha256":"a7079d53418d670cad9196697bc557685583bcaed6e134022ccb8d71bc7ddd82","source":{"kind":"arxiv","id":"2303.08153","version":1},"source_aliases":[{"alias_kind":"arxiv","alias_value":"2303.08153","created_at":"2026-07-05T05:51:16Z"},{"alias_kind":"arxiv_version","alias_value":"2303.08153v1","created_at":"2026-07-05T05:51:16Z"},{"alias_kind":"doi","alias_value":"10.48550/arxiv.2303.08153","created_at":"2026-07-05T05:51:16Z"},{"alias_kind":"pith_short_12","alias_value":"U4DZ2U2BRVTQ","created_at":"2026-07-05T05:51:16Z"},{"alias_kind":"pith_short_16","alias_value":"U4DZ2U2BRVTQZLMR","created_at":"2026-07-05T05:51:16Z"},{"alias_kind":"pith_short_8","alias_value":"U4DZ2U2B","created_at":"2026-07-05T05:51:16Z"}],"events":[{"event_type":"record_created","subject_pith_number":"pith:2023:U4DZ2U2BRVTQZLMRSZUXXRKXNB","target":"record","payload":{"canonical_record":{"source":{"id":"2303.08153","kind":"arxiv","version":1},"metadata":{"license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"gr-qc","submitted_at":"2023-03-14T18:00:28Z","cross_cats_sorted":["astro-ph.HE","cs.NA","math.NA"],"title_canon_sha256":"351330daa09bac587209d52de9011afff5653dc5d78c450c5e0ed40e859427e4","abstract_canon_sha256":"e9e466915be1bc3f2f77910f2cab3a88bb3026e37e691ead31c638ff7ea74a16"},"schema_version":"1.0"},"canonical_sha256":"a7079d53418d670cad9196697bc557685583bcaed6e134022ccb8d71bc7ddd82","receipt":{"kind":"pith_receipt","key_id":"pith-v1-2026-05","algorithm":"ed25519","signed_at":"2026-07-05T05:51:16.577364Z","signature_b64":"L7CYhSCobiVY5hsFwesxsMECUGQ92bt+72xhnTJqljHFbW1id/iFmNRPqrJowsqYXCbjuCRJdck8ymFI6NrlCg==","signed_message":"canonical_sha256_bytes","builder_version":"pith-number-builder-2026-05-17-v1","receipt_version":"0.3","canonical_sha256":"a7079d53418d670cad9196697bc557685583bcaed6e134022ccb8d71bc7ddd82","last_reissued_at":"2026-07-05T05:51:16.576940Z","signature_status":"signed_v1","first_computed_at":"2026-07-05T05:51:16.576940Z","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54"},"source_kind":"arxiv","source_id":"2303.08153","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":"2026-07-05T05:51:16Z","supersedes":[],"prev_event":null,"signature":{"signature_status":"signed_v1","algorithm":"ed25519","key_id":"pith-v1-2026-05","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54","signature_b64":"koY4uNZto9+tTOERInmvKvhgdItMV0dB5R4Fkcjo/+vnw+xxkfbUwaTRGhdu8PGnUqpNWU7O5WSnekyOaS4TCg==","signed_message":"open_graph_event_sha256_bytes","signed_at":"2026-08-12T13:57:18.079781Z"},"content_sha256":"a27ce5eef0e678210bed57a18672ba2b0892d8b3250075fa33f770f63df0b94e","schema_version":"1.0","event_id":"sha256:a27ce5eef0e678210bed57a18672ba2b0892d8b3250075fa33f770f63df0b94e"},{"event_type":"graph_snapshot","subject_pith_number":"pith:2023:U4DZ2U2BRVTQZLMRSZUXXRKXNB","target":"graph","payload":{"graph_snapshot":{"paper":{"title":"Symmetric integration of the 1+1 Teukolsky equation on hyperboloidal foliations of Kerr spacetimes","license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","headline":"","cross_cats":["astro-ph.HE","cs.NA","math.NA"],"primary_cat":"gr-qc","authors_text":"An{\\i}l Zengino\\u{g}lu, Charalampos Markakis, Sean Bray","submitted_at":"2023-03-14T18:00:28Z","abstract_excerpt":"This work outlines a fast, high-precision time-domain solver for scalar, electromagnetic and gravitational perturbations on hyperboloidal foliations of Kerr space-times. Time-domain Teukolsky equation solvers have typically used explicit methods, which numerically violate Noether symmetries and are Courant-limited. These restrictions can limit the performance of explicit schemes when simulating long-time extreme mass ratio inspirals, expected to appear in LISA band for 2-5 years. We thus explore symmetric (exponential, Pad\\'e or Hermite) integrators, which are unconditionally stable and known "},"claims":{"count":0,"items":[],"snapshot_sha256":"258153158e38e3291e3d48162225fcdb2d5a3ed65a07baac614ab91432fd4f57"},"source":{"id":"2303.08153","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":""},"integrity":{"clean":true,"summary":{"advisory":0,"critical":0,"by_detector":{},"informational":0},"endpoint":"/pith/2303.08153/integrity.json","findings":[],"available":true,"detectors_run":[],"snapshot_sha256":"c28c3603d3b5d939e8dc4c7e95fa8dfce3d595e45f758748cecf8e644a296938"},"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":"2026-07-05T05:51:16Z","supersedes":[],"prev_event":null,"signature":{"signature_status":"signed_v1","algorithm":"ed25519","key_id":"pith-v1-2026-05","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54","signature_b64":"pQq5722ax/sxyagGov/h5fH0LtaJ5kxE6Io423yPldErWqxS0WcFfV5FPQ5u7vroX7kB4vKMNoVF/BpNWXBMCA==","signed_message":"open_graph_event_sha256_bytes","signed_at":"2026-08-12T13:57:18.080316Z"},"content_sha256":"801290007c7b6adf50dc67f4ae10c84c0cdc4dcb9863295345e0c6c89c16cbaa","schema_version":"1.0","event_id":"sha256:801290007c7b6adf50dc67f4ae10c84c0cdc4dcb9863295345e0c6c89c16cbaa"}],"timestamp_proofs":[],"mirror_hints":[{"mirror_type":"https","name":"Pith Resolver","base_url":"https://pith.science","bundle_url":"https://pith.science/pith/U4DZ2U2BRVTQZLMRSZUXXRKXNB/bundle.json","state_url":"https://pith.science/pith/U4DZ2U2BRVTQZLMRSZUXXRKXNB/state.json","well_known_bundle_url":"https://pith.science/.well-known/pith/U4DZ2U2BRVTQZLMRSZUXXRKXNB/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":"2026-08-12T13:57:18Z","links":{"resolver":"https://pith.science/pith/U4DZ2U2BRVTQZLMRSZUXXRKXNB","bundle":"https://pith.science/pith/U4DZ2U2BRVTQZLMRSZUXXRKXNB/bundle.json","state":"https://pith.science/pith/U4DZ2U2BRVTQZLMRSZUXXRKXNB/state.json","well_known_bundle":"https://pith.science/.well-known/pith/U4DZ2U2BRVTQZLMRSZUXXRKXNB/bundle.json"},"state":{"state_type":"pith_open_graph_state","state_version":"1.0","pith_number":"pith:2023:U4DZ2U2BRVTQZLMRSZUXXRKXNB","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":"e9e466915be1bc3f2f77910f2cab3a88bb3026e37e691ead31c638ff7ea74a16","cross_cats_sorted":["astro-ph.HE","cs.NA","math.NA"],"license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"gr-qc","submitted_at":"2023-03-14T18:00:28Z","title_canon_sha256":"351330daa09bac587209d52de9011afff5653dc5d78c450c5e0ed40e859427e4"},"schema_version":"1.0","source":{"id":"2303.08153","kind":"arxiv","version":1}},"source_aliases":[{"alias_kind":"arxiv","alias_value":"2303.08153","created_at":"2026-07-05T05:51:16Z"},{"alias_kind":"arxiv_version","alias_value":"2303.08153v1","created_at":"2026-07-05T05:51:16Z"},{"alias_kind":"doi","alias_value":"10.48550/arxiv.2303.08153","created_at":"2026-07-05T05:51:16Z"},{"alias_kind":"pith_short_12","alias_value":"U4DZ2U2BRVTQ","created_at":"2026-07-05T05:51:16Z"},{"alias_kind":"pith_short_16","alias_value":"U4DZ2U2BRVTQZLMR","created_at":"2026-07-05T05:51:16Z"},{"alias_kind":"pith_short_8","alias_value":"U4DZ2U2B","created_at":"2026-07-05T05:51:16Z"}],"graph_snapshots":[{"event_id":"sha256:801290007c7b6adf50dc67f4ae10c84c0cdc4dcb9863295345e0c6c89c16cbaa","target":"graph","created_at":"2026-07-05T05:51:16Z","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"},"integrity":{"available":true,"clean":true,"detectors_run":[],"endpoint":"/pith/2303.08153/integrity.json","findings":[],"snapshot_sha256":"c28c3603d3b5d939e8dc4c7e95fa8dfce3d595e45f758748cecf8e644a296938","summary":{"advisory":0,"by_detector":{},"critical":0,"informational":0}},"paper":{"abstract_excerpt":"This work outlines a fast, high-precision time-domain solver for scalar, electromagnetic and gravitational perturbations on hyperboloidal foliations of Kerr space-times. Time-domain Teukolsky equation solvers have typically used explicit methods, which numerically violate Noether symmetries and are Courant-limited. These restrictions can limit the performance of explicit schemes when simulating long-time extreme mass ratio inspirals, expected to appear in LISA band for 2-5 years. We thus explore symmetric (exponential, Pad\\'e or Hermite) integrators, which are unconditionally stable and known ","authors_text":"An{\\i}l Zengino\\u{g}lu, Charalampos Markakis, Sean Bray","cross_cats":["astro-ph.HE","cs.NA","math.NA"],"headline":"","license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"gr-qc","submitted_at":"2023-03-14T18:00:28Z","title":"Symmetric integration of the 1+1 Teukolsky equation on hyperboloidal foliations of Kerr spacetimes"},"references":{"count":0,"internal_anchors":0,"resolved_work":0,"sample":[],"snapshot_sha256":"258153158e38e3291e3d48162225fcdb2d5a3ed65a07baac614ab91432fd4f57"},"source":{"id":"2303.08153","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:a27ce5eef0e678210bed57a18672ba2b0892d8b3250075fa33f770f63df0b94e","target":"record","created_at":"2026-07-05T05:51:16Z","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":"e9e466915be1bc3f2f77910f2cab3a88bb3026e37e691ead31c638ff7ea74a16","cross_cats_sorted":["astro-ph.HE","cs.NA","math.NA"],"license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"gr-qc","submitted_at":"2023-03-14T18:00:28Z","title_canon_sha256":"351330daa09bac587209d52de9011afff5653dc5d78c450c5e0ed40e859427e4"},"schema_version":"1.0","source":{"id":"2303.08153","kind":"arxiv","version":1}},"canonical_sha256":"a7079d53418d670cad9196697bc557685583bcaed6e134022ccb8d71bc7ddd82","receipt":{"algorithm":"ed25519","builder_version":"pith-number-builder-2026-05-17-v1","canonical_sha256":"a7079d53418d670cad9196697bc557685583bcaed6e134022ccb8d71bc7ddd82","first_computed_at":"2026-07-05T05:51:16.576940Z","key_id":"pith-v1-2026-05","kind":"pith_receipt","last_reissued_at":"2026-07-05T05:51:16.576940Z","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54","receipt_version":"0.3","signature_b64":"L7CYhSCobiVY5hsFwesxsMECUGQ92bt+72xhnTJqljHFbW1id/iFmNRPqrJowsqYXCbjuCRJdck8ymFI6NrlCg==","signature_status":"signed_v1","signed_at":"2026-07-05T05:51:16.577364Z","signed_message":"canonical_sha256_bytes"},"source_id":"2303.08153","source_kind":"arxiv","source_version":1}}},"equivocations":[],"invalid_events":[],"applied_event_ids":["sha256:a27ce5eef0e678210bed57a18672ba2b0892d8b3250075fa33f770f63df0b94e","sha256:801290007c7b6adf50dc67f4ae10c84c0cdc4dcb9863295345e0c6c89c16cbaa"],"state_sha256":"4a23f1400f253438c1951542495fdbba533ef91ab94d470ffe6003bd53e5ecac"},"bundle_signature":{"signature_status":"signed_v1","algorithm":"ed25519","key_id":"pith-v1-2026-05","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54","signature_b64":"PMFUUx3wgQoUP1XIRX03yKQ4EnIaU8hyiRz2zVOrmgQ3SX239WDAJeo/ps/j08aCJnBa9F2zU1hA4dPjeWDvAA==","signed_message":"bundle_sha256_bytes","signed_at":"2026-08-12T13:57:18.085040Z","bundle_sha256":"718a5d49aa0fa5a9972dbe94b42b10eceb25dfcd980b4f6eda85cebaea1776fc"}}