{"bundle_type":"pith_open_graph_bundle","bundle_version":"1.0","pith_number":"pith:2021:M4UVGNBLQTGSUFE5B437QAYBMA","short_pith_number":"pith:M4UVGNBL","canonical_record":{"source":{"id":"2108.03385","kind":"arxiv","version":5},"metadata":{"license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"gr-qc","submitted_at":"2021-08-07T07:34:00Z","cross_cats_sorted":["astro-ph.HE","astro-ph.SR","hep-th"],"title_canon_sha256":"5bac0adf87e3dec6b0d80878603ac3b35b9bbcedf11f9d5618373feddd5bbdbf","abstract_canon_sha256":"b751d34d2581c54f6dc1d244a5ba96249826eeba7cdcfe9142a1893a3f42d410"},"schema_version":"1.0"},"canonical_sha256":"672953342b84cd2a149d0f37f80301603ad5f1ff491be2c7b2299e32c0798b78","source":{"kind":"arxiv","id":"2108.03385","version":5},"source_aliases":[{"alias_kind":"arxiv","alias_value":"2108.03385","created_at":"2026-07-05T05:09:48Z"},{"alias_kind":"arxiv_version","alias_value":"2108.03385v5","created_at":"2026-07-05T05:09:48Z"},{"alias_kind":"doi","alias_value":"10.48550/arxiv.2108.03385","created_at":"2026-07-05T05:09:48Z"},{"alias_kind":"pith_short_12","alias_value":"M4UVGNBLQTGS","created_at":"2026-07-05T05:09:48Z"},{"alias_kind":"pith_short_16","alias_value":"M4UVGNBLQTGSUFE5","created_at":"2026-07-05T05:09:48Z"},{"alias_kind":"pith_short_8","alias_value":"M4UVGNBL","created_at":"2026-07-05T05:09:48Z"}],"events":[{"event_type":"record_created","subject_pith_number":"pith:2021:M4UVGNBLQTGSUFE5B437QAYBMA","target":"record","payload":{"canonical_record":{"source":{"id":"2108.03385","kind":"arxiv","version":5},"metadata":{"license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"gr-qc","submitted_at":"2021-08-07T07:34:00Z","cross_cats_sorted":["astro-ph.HE","astro-ph.SR","hep-th"],"title_canon_sha256":"5bac0adf87e3dec6b0d80878603ac3b35b9bbcedf11f9d5618373feddd5bbdbf","abstract_canon_sha256":"b751d34d2581c54f6dc1d244a5ba96249826eeba7cdcfe9142a1893a3f42d410"},"schema_version":"1.0"},"canonical_sha256":"672953342b84cd2a149d0f37f80301603ad5f1ff491be2c7b2299e32c0798b78","receipt":{"kind":"pith_receipt","key_id":"pith-v1-2026-05","algorithm":"ed25519","signed_at":"2026-07-05T05:09:48.574547Z","signature_b64":"GJ8GJscuuFKgj7MQsGIR08fWP7LVjHObg1xs+1Va0hBDALeVG7YM1bhmwpbvRjWcyxAtmRtWjekQcTmToh4EDg==","signed_message":"canonical_sha256_bytes","builder_version":"pith-number-builder-2026-05-17-v1","receipt_version":"0.3","canonical_sha256":"672953342b84cd2a149d0f37f80301603ad5f1ff491be2c7b2299e32c0798b78","last_reissued_at":"2026-07-05T05:09:48.574087Z","signature_status":"signed_v1","first_computed_at":"2026-07-05T05:09:48.574087Z","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54"},"source_kind":"arxiv","source_id":"2108.03385","source_version":5,"attestation_state":"computed"},"signer":{"signer_id":"pith.science","signer_type":"pith_registry","key_id":"pith-v1-2026-05","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54"},"created_at":"2026-07-05T05:09:48Z","supersedes":[],"prev_event":null,"signature":{"signature_status":"signed_v1","algorithm":"ed25519","key_id":"pith-v1-2026-05","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54","signature_b64":"3C3DPxfT7gN8gZzpiUlzHkNg9r5XbCrBX10k5mmM2kWYtNFDlsmp7Wgylopb5gz4qvoPhcxDF5Mynb9D4GqlAQ==","signed_message":"open_graph_event_sha256_bytes","signed_at":"2026-08-03T20:57:01.573286Z"},"content_sha256":"6d15406a119e5be01858a3cb824232a12d0c23a0768a243c89451edf2c41e39f","schema_version":"1.0","event_id":"sha256:6d15406a119e5be01858a3cb824232a12d0c23a0768a243c89451edf2c41e39f"},{"event_type":"graph_snapshot","subject_pith_number":"pith:2021:M4UVGNBLQTGSUFE5B437QAYBMA","target":"graph","payload":{"graph_snapshot":{"paper":{"title":"Tidal response from scattering and the role of analytic continuation","license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","headline":"","cross_cats":["astro-ph.HE","astro-ph.SR","hep-th"],"primary_cat":"gr-qc","authors_text":"Gast\\'on Creci, Jan Steinhoff, Tanja Hinderer","submitted_at":"2021-08-07T07:34:00Z","abstract_excerpt":"The tidal response of a compact object is a key gravitational-wave observable encoding information about its interior. This link is subtle due to the nonlinearities of general relativity. We show that considering a scattering process bypasses challenges with potential ambiguities, as the tidal response is determined by the asymptotic in- and outgoing waves at null infinity. As an application of the general method, we analyze scalar waves scattering off a nonspinning black hole and demonstrate that the low-frequency expansion of the tidal response reproduces known results for the Love number an"},"claims":{"count":0,"items":[],"snapshot_sha256":"258153158e38e3291e3d48162225fcdb2d5a3ed65a07baac614ab91432fd4f57"},"source":{"id":"2108.03385","kind":"arxiv","version":5},"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/2108.03385/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":"2026-07-05T05:09:48Z","supersedes":[],"prev_event":null,"signature":{"signature_status":"signed_v1","algorithm":"ed25519","key_id":"pith-v1-2026-05","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54","signature_b64":"xcB9fbwfSR/tQS/7/ckyENugd7XOnoF8e10gwb/UT40ucy8kfAq6OT09Bh6WT7xfiOpiJocLloVJlh5bfU5KCQ==","signed_message":"open_graph_event_sha256_bytes","signed_at":"2026-08-03T20:57:01.573791Z"},"content_sha256":"8654e56698a26fbf93f711ab8741e9afcb77e30f7f27184740adffcdb9caae92","schema_version":"1.0","event_id":"sha256:8654e56698a26fbf93f711ab8741e9afcb77e30f7f27184740adffcdb9caae92"}],"timestamp_proofs":[],"mirror_hints":[{"mirror_type":"https","name":"Pith Resolver","base_url":"https://pith.science","bundle_url":"https://pith.science/pith/M4UVGNBLQTGSUFE5B437QAYBMA/bundle.json","state_url":"https://pith.science/pith/M4UVGNBLQTGSUFE5B437QAYBMA/state.json","well_known_bundle_url":"https://pith.science/.well-known/pith/M4UVGNBLQTGSUFE5B437QAYBMA/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":"2026-08-03T20:57:01Z","links":{"resolver":"https://pith.science/pith/M4UVGNBLQTGSUFE5B437QAYBMA","bundle":"https://pith.science/pith/M4UVGNBLQTGSUFE5B437QAYBMA/bundle.json","state":"https://pith.science/pith/M4UVGNBLQTGSUFE5B437QAYBMA/state.json","well_known_bundle":"https://pith.science/.well-known/pith/M4UVGNBLQTGSUFE5B437QAYBMA/bundle.json"},"state":{"state_type":"pith_open_graph_state","state_version":"1.0","pith_number":"pith:2021:M4UVGNBLQTGSUFE5B437QAYBMA","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":"b751d34d2581c54f6dc1d244a5ba96249826eeba7cdcfe9142a1893a3f42d410","cross_cats_sorted":["astro-ph.HE","astro-ph.SR","hep-th"],"license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"gr-qc","submitted_at":"2021-08-07T07:34:00Z","title_canon_sha256":"5bac0adf87e3dec6b0d80878603ac3b35b9bbcedf11f9d5618373feddd5bbdbf"},"schema_version":"1.0","source":{"id":"2108.03385","kind":"arxiv","version":5}},"source_aliases":[{"alias_kind":"arxiv","alias_value":"2108.03385","created_at":"2026-07-05T05:09:48Z"},{"alias_kind":"arxiv_version","alias_value":"2108.03385v5","created_at":"2026-07-05T05:09:48Z"},{"alias_kind":"doi","alias_value":"10.48550/arxiv.2108.03385","created_at":"2026-07-05T05:09:48Z"},{"alias_kind":"pith_short_12","alias_value":"M4UVGNBLQTGS","created_at":"2026-07-05T05:09:48Z"},{"alias_kind":"pith_short_16","alias_value":"M4UVGNBLQTGSUFE5","created_at":"2026-07-05T05:09:48Z"},{"alias_kind":"pith_short_8","alias_value":"M4UVGNBL","created_at":"2026-07-05T05:09:48Z"}],"graph_snapshots":[{"event_id":"sha256:8654e56698a26fbf93f711ab8741e9afcb77e30f7f27184740adffcdb9caae92","target":"graph","created_at":"2026-07-05T05:09:48Z","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/2108.03385/integrity.json","findings":[],"snapshot_sha256":"c28c3603d3b5d939e8dc4c7e95fa8dfce3d595e45f758748cecf8e644a296938","summary":{"advisory":0,"by_detector":{},"critical":0,"informational":0}},"paper":{"abstract_excerpt":"The tidal response of a compact object is a key gravitational-wave observable encoding information about its interior. This link is subtle due to the nonlinearities of general relativity. We show that considering a scattering process bypasses challenges with potential ambiguities, as the tidal response is determined by the asymptotic in- and outgoing waves at null infinity. As an application of the general method, we analyze scalar waves scattering off a nonspinning black hole and demonstrate that the low-frequency expansion of the tidal response reproduces known results for the Love number an","authors_text":"Gast\\'on Creci, Jan Steinhoff, Tanja Hinderer","cross_cats":["astro-ph.HE","astro-ph.SR","hep-th"],"headline":"","license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"gr-qc","submitted_at":"2021-08-07T07:34:00Z","title":"Tidal response from scattering and the role of analytic continuation"},"references":{"count":0,"internal_anchors":0,"resolved_work":0,"sample":[],"snapshot_sha256":"258153158e38e3291e3d48162225fcdb2d5a3ed65a07baac614ab91432fd4f57"},"source":{"id":"2108.03385","kind":"arxiv","version":5},"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":"sha256:6d15406a119e5be01858a3cb824232a12d0c23a0768a243c89451edf2c41e39f","target":"record","created_at":"2026-07-05T05:09:48Z","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":"b751d34d2581c54f6dc1d244a5ba96249826eeba7cdcfe9142a1893a3f42d410","cross_cats_sorted":["astro-ph.HE","astro-ph.SR","hep-th"],"license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"gr-qc","submitted_at":"2021-08-07T07:34:00Z","title_canon_sha256":"5bac0adf87e3dec6b0d80878603ac3b35b9bbcedf11f9d5618373feddd5bbdbf"},"schema_version":"1.0","source":{"id":"2108.03385","kind":"arxiv","version":5}},"canonical_sha256":"672953342b84cd2a149d0f37f80301603ad5f1ff491be2c7b2299e32c0798b78","receipt":{"algorithm":"ed25519","builder_version":"pith-number-builder-2026-05-17-v1","canonical_sha256":"672953342b84cd2a149d0f37f80301603ad5f1ff491be2c7b2299e32c0798b78","first_computed_at":"2026-07-05T05:09:48.574087Z","key_id":"pith-v1-2026-05","kind":"pith_receipt","last_reissued_at":"2026-07-05T05:09:48.574087Z","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54","receipt_version":"0.3","signature_b64":"GJ8GJscuuFKgj7MQsGIR08fWP7LVjHObg1xs+1Va0hBDALeVG7YM1bhmwpbvRjWcyxAtmRtWjekQcTmToh4EDg==","signature_status":"signed_v1","signed_at":"2026-07-05T05:09:48.574547Z","signed_message":"canonical_sha256_bytes"},"source_id":"2108.03385","source_kind":"arxiv","source_version":5}}},"equivocations":[],"invalid_events":[],"applied_event_ids":["sha256:6d15406a119e5be01858a3cb824232a12d0c23a0768a243c89451edf2c41e39f","sha256:8654e56698a26fbf93f711ab8741e9afcb77e30f7f27184740adffcdb9caae92"],"state_sha256":"e0decf64d051e8395f7308fb14f14da1354336e0aa2c036fad954666ca51389b"},"bundle_signature":{"signature_status":"signed_v1","algorithm":"ed25519","key_id":"pith-v1-2026-05","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54","signature_b64":"vCp58irrR/N9cNXlpebiYHLYk1IJOJTBf7ARRbgbFYGs4eXbJRP41qGjTDgVKMMrMuPH1RrdlvriC5QCaBMXBw==","signed_message":"bundle_sha256_bytes","signed_at":"2026-08-03T20:57:01.578774Z","bundle_sha256":"97312a60b20b6538e2dc7f33ab2332ac6ec73b0021892d238df935917ebba033"}}