{"bundle_type":"pith_open_graph_bundle","bundle_version":"1.0","pith_number":"pith:2019:6DJFJRYTL3XLR5SAB4VFP7OL6P","short_pith_number":"pith:6DJFJRYT","canonical_record":{"source":{"id":"1905.09370","kind":"arxiv","version":3},"metadata":{"license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"gr-qc","submitted_at":"2019-05-22T21:19:03Z","cross_cats_sorted":[],"title_canon_sha256":"ca47e57ad9d9753c14d0abcf9272b45569799afb7ec9387eb78048003594290c","abstract_canon_sha256":"e46487bf083b13b836606017371197c2e5656ec5fe4fdd51dc383bc42139d398"},"schema_version":"1.0"},"canonical_sha256":"f0d254c7135eeeb8f6400f2a57fdcbf3e77e0851d9f198f8de3f33b23cb0321f","source":{"kind":"arxiv","id":"1905.09370","version":3},"source_aliases":[{"alias_kind":"arxiv","alias_value":"1905.09370","created_at":"2026-07-05T00:26:35Z"},{"alias_kind":"arxiv_version","alias_value":"1905.09370v3","created_at":"2026-07-05T00:26:35Z"},{"alias_kind":"doi","alias_value":"10.48550/arxiv.1905.09370","created_at":"2026-07-05T00:26:35Z"},{"alias_kind":"pith_short_12","alias_value":"6DJFJRYTL3XL","created_at":"2026-07-05T00:26:35Z"},{"alias_kind":"pith_short_16","alias_value":"6DJFJRYTL3XLR5SA","created_at":"2026-07-05T00:26:35Z"},{"alias_kind":"pith_short_8","alias_value":"6DJFJRYT","created_at":"2026-07-05T00:26:35Z"}],"events":[{"event_type":"record_created","subject_pith_number":"pith:2019:6DJFJRYTL3XLR5SAB4VFP7OL6P","target":"record","payload":{"canonical_record":{"source":{"id":"1905.09370","kind":"arxiv","version":3},"metadata":{"license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"gr-qc","submitted_at":"2019-05-22T21:19:03Z","cross_cats_sorted":[],"title_canon_sha256":"ca47e57ad9d9753c14d0abcf9272b45569799afb7ec9387eb78048003594290c","abstract_canon_sha256":"e46487bf083b13b836606017371197c2e5656ec5fe4fdd51dc383bc42139d398"},"schema_version":"1.0"},"canonical_sha256":"f0d254c7135eeeb8f6400f2a57fdcbf3e77e0851d9f198f8de3f33b23cb0321f","receipt":{"kind":"pith_receipt","key_id":"pith-v1-2026-05","algorithm":"ed25519","signed_at":"2026-07-05T00:26:35.912535Z","signature_b64":"050htRX8Y9mLn4YHSpnrHXU2BG76Qq2aaR7D/MiBJhQD/dNGViITbvhnCcklcPtuxmW9plBkCD8/l25PxuA7Aw==","signed_message":"canonical_sha256_bytes","builder_version":"pith-number-builder-2026-05-17-v1","receipt_version":"0.3","canonical_sha256":"f0d254c7135eeeb8f6400f2a57fdcbf3e77e0851d9f198f8de3f33b23cb0321f","last_reissued_at":"2026-07-05T00:26:35.912066Z","signature_status":"signed_v1","first_computed_at":"2026-07-05T00:26:35.912066Z","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54"},"source_kind":"arxiv","source_id":"1905.09370","source_version":3,"attestation_state":"computed"},"signer":{"signer_id":"pith.science","signer_type":"pith_registry","key_id":"pith-v1-2026-05","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54"},"created_at":"2026-07-05T00:26:35Z","supersedes":[],"prev_event":null,"signature":{"signature_status":"signed_v1","algorithm":"ed25519","key_id":"pith-v1-2026-05","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54","signature_b64":"K++/+ovHD0UpP+eGsF5p1FYWPQaHYPac0YuSbK0C0jNJ7wB4Z8PqjG0gJJCQnaVQUz1ikCCvV1OWdjyeScaeCw==","signed_message":"open_graph_event_sha256_bytes","signed_at":"2026-08-04T05:58:26.146518Z"},"content_sha256":"15f58bc5489927d4b86cee1e10a92072d1a457b56e7d8c7e27fe6d652c716fd3","schema_version":"1.0","event_id":"sha256:15f58bc5489927d4b86cee1e10a92072d1a457b56e7d8c7e27fe6d652c716fd3"},{"event_type":"graph_snapshot","subject_pith_number":"pith:2019:6DJFJRYTL3XLR5SAB4VFP7OL6P","target":"graph","payload":{"graph_snapshot":{"paper":{"title":"Gravitational Wave \"Echo\" Spectra","license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","headline":"","cross_cats":[],"primary_cat":"gr-qc","authors_text":"Bob Holdom, Randy S. Conklin","submitted_at":"2019-05-22T21:19:03Z","abstract_excerpt":"Exotic compact objects may resemble black holes very closely while remaining horizonless. They may be distinguished from black holes because they effectively give rise to a resonant cavity for the propagation of low frequency gravity waves. In a Green's function approach, the resonance structure appears in a transfer function. The transfer function in turn is modulated by an initial-condition-dependent source integral to obtain the observed spectrum. We find that the source integral displays universal factors that tend to enhance low and negative frequencies, and this increases the complexity "},"claims":{"count":0,"items":[],"snapshot_sha256":"258153158e38e3291e3d48162225fcdb2d5a3ed65a07baac614ab91432fd4f57"},"source":{"id":"1905.09370","kind":"arxiv","version":3},"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/1905.09370/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":"2026-07-05T00:26:35Z","supersedes":[],"prev_event":null,"signature":{"signature_status":"signed_v1","algorithm":"ed25519","key_id":"pith-v1-2026-05","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54","signature_b64":"CY6RtsjjaBtjxXHeyoEPGicel2KgynDFfCjJbe7YRBL3G8UzEZJBqYkcRg4QP1zLntbCapQplmc4fukW1sAxAw==","signed_message":"open_graph_event_sha256_bytes","signed_at":"2026-08-04T05:58:26.147204Z"},"content_sha256":"ef0601a8beb640438dc5b6e09831dad7fb65299705f5f42ec0b183575d3a4a0c","schema_version":"1.0","event_id":"sha256:ef0601a8beb640438dc5b6e09831dad7fb65299705f5f42ec0b183575d3a4a0c"}],"timestamp_proofs":[],"mirror_hints":[{"mirror_type":"https","name":"Pith Resolver","base_url":"https://pith.science","bundle_url":"https://pith.science/pith/6DJFJRYTL3XLR5SAB4VFP7OL6P/bundle.json","state_url":"https://pith.science/pith/6DJFJRYTL3XLR5SAB4VFP7OL6P/state.json","well_known_bundle_url":"https://pith.science/.well-known/pith/6DJFJRYTL3XLR5SAB4VFP7OL6P/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":"2026-08-04T05:58:26Z","links":{"resolver":"https://pith.science/pith/6DJFJRYTL3XLR5SAB4VFP7OL6P","bundle":"https://pith.science/pith/6DJFJRYTL3XLR5SAB4VFP7OL6P/bundle.json","state":"https://pith.science/pith/6DJFJRYTL3XLR5SAB4VFP7OL6P/state.json","well_known_bundle":"https://pith.science/.well-known/pith/6DJFJRYTL3XLR5SAB4VFP7OL6P/bundle.json"},"state":{"state_type":"pith_open_graph_state","state_version":"1.0","pith_number":"pith:2019:6DJFJRYTL3XLR5SAB4VFP7OL6P","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":"e46487bf083b13b836606017371197c2e5656ec5fe4fdd51dc383bc42139d398","cross_cats_sorted":[],"license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"gr-qc","submitted_at":"2019-05-22T21:19:03Z","title_canon_sha256":"ca47e57ad9d9753c14d0abcf9272b45569799afb7ec9387eb78048003594290c"},"schema_version":"1.0","source":{"id":"1905.09370","kind":"arxiv","version":3}},"source_aliases":[{"alias_kind":"arxiv","alias_value":"1905.09370","created_at":"2026-07-05T00:26:35Z"},{"alias_kind":"arxiv_version","alias_value":"1905.09370v3","created_at":"2026-07-05T00:26:35Z"},{"alias_kind":"doi","alias_value":"10.48550/arxiv.1905.09370","created_at":"2026-07-05T00:26:35Z"},{"alias_kind":"pith_short_12","alias_value":"6DJFJRYTL3XL","created_at":"2026-07-05T00:26:35Z"},{"alias_kind":"pith_short_16","alias_value":"6DJFJRYTL3XLR5SA","created_at":"2026-07-05T00:26:35Z"},{"alias_kind":"pith_short_8","alias_value":"6DJFJRYT","created_at":"2026-07-05T00:26:35Z"}],"graph_snapshots":[{"event_id":"sha256:ef0601a8beb640438dc5b6e09831dad7fb65299705f5f42ec0b183575d3a4a0c","target":"graph","created_at":"2026-07-05T00:26:35Z","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/1905.09370/integrity.json","findings":[],"snapshot_sha256":"c28c3603d3b5d939e8dc4c7e95fa8dfce3d595e45f758748cecf8e644a296938","summary":{"advisory":0,"by_detector":{},"critical":0,"informational":0}},"paper":{"abstract_excerpt":"Exotic compact objects may resemble black holes very closely while remaining horizonless. They may be distinguished from black holes because they effectively give rise to a resonant cavity for the propagation of low frequency gravity waves. In a Green's function approach, the resonance structure appears in a transfer function. The transfer function in turn is modulated by an initial-condition-dependent source integral to obtain the observed spectrum. We find that the source integral displays universal factors that tend to enhance low and negative frequencies, and this increases the complexity ","authors_text":"Bob Holdom, Randy S. Conklin","cross_cats":[],"headline":"","license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"gr-qc","submitted_at":"2019-05-22T21:19:03Z","title":"Gravitational Wave \"Echo\" Spectra"},"references":{"count":0,"internal_anchors":0,"resolved_work":0,"sample":[],"snapshot_sha256":"258153158e38e3291e3d48162225fcdb2d5a3ed65a07baac614ab91432fd4f57"},"source":{"id":"1905.09370","kind":"arxiv","version":3},"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":"sha256:15f58bc5489927d4b86cee1e10a92072d1a457b56e7d8c7e27fe6d652c716fd3","target":"record","created_at":"2026-07-05T00:26:35Z","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":"e46487bf083b13b836606017371197c2e5656ec5fe4fdd51dc383bc42139d398","cross_cats_sorted":[],"license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"gr-qc","submitted_at":"2019-05-22T21:19:03Z","title_canon_sha256":"ca47e57ad9d9753c14d0abcf9272b45569799afb7ec9387eb78048003594290c"},"schema_version":"1.0","source":{"id":"1905.09370","kind":"arxiv","version":3}},"canonical_sha256":"f0d254c7135eeeb8f6400f2a57fdcbf3e77e0851d9f198f8de3f33b23cb0321f","receipt":{"algorithm":"ed25519","builder_version":"pith-number-builder-2026-05-17-v1","canonical_sha256":"f0d254c7135eeeb8f6400f2a57fdcbf3e77e0851d9f198f8de3f33b23cb0321f","first_computed_at":"2026-07-05T00:26:35.912066Z","key_id":"pith-v1-2026-05","kind":"pith_receipt","last_reissued_at":"2026-07-05T00:26:35.912066Z","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54","receipt_version":"0.3","signature_b64":"050htRX8Y9mLn4YHSpnrHXU2BG76Qq2aaR7D/MiBJhQD/dNGViITbvhnCcklcPtuxmW9plBkCD8/l25PxuA7Aw==","signature_status":"signed_v1","signed_at":"2026-07-05T00:26:35.912535Z","signed_message":"canonical_sha256_bytes"},"source_id":"1905.09370","source_kind":"arxiv","source_version":3}}},"equivocations":[],"invalid_events":[],"applied_event_ids":["sha256:15f58bc5489927d4b86cee1e10a92072d1a457b56e7d8c7e27fe6d652c716fd3","sha256:ef0601a8beb640438dc5b6e09831dad7fb65299705f5f42ec0b183575d3a4a0c"],"state_sha256":"6eb8acab64d0842d25716508ea406494e15bb6990eb78c1ed7bfd2e89348e3a5"},"bundle_signature":{"signature_status":"signed_v1","algorithm":"ed25519","key_id":"pith-v1-2026-05","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54","signature_b64":"dUbY+YYDygbDDBeJJREM68IENS9n0Srbq2nlFKYCWFZBAeKEX67YXwjoQCr9Pb4g8izGN7dXTYEGwDr7b2vTBQ==","signed_message":"bundle_sha256_bytes","signed_at":"2026-08-04T05:58:26.151261Z","bundle_sha256":"10e0caebc7feff7b99fd11eb0d4e8ea5211b7b84df918a7a16281ef54a645156"}}