{"bundle_type":"pith_open_graph_bundle","bundle_version":"1.0","pith_number":"pith:2021:6FWFQG625OZG6J4REIE35HHMVC","short_pith_number":"pith:6FWFQG62","canonical_record":{"source":{"id":"2106.05163","kind":"arxiv","version":1},"metadata":{"license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"gr-qc","submitted_at":"2021-06-09T16:10:56Z","cross_cats_sorted":[],"title_canon_sha256":"fcac192de45c055dbebd32a00f69e44a6a4c40ba5aa6c887b4f221b9cc95564c","abstract_canon_sha256":"442711236a08092d370605cb7f9630add96095053f81ea7098f73e3fce40fc1e"},"schema_version":"1.0"},"canonical_sha256":"f16c581bdaebb26f27912209be9ceca8a12f6729031a6a13bb066841cd564c5e","source":{"kind":"arxiv","id":"2106.05163","version":1},"source_aliases":[{"alias_kind":"arxiv","alias_value":"2106.05163","created_at":"2026-07-05T03:12:07Z"},{"alias_kind":"arxiv_version","alias_value":"2106.05163v1","created_at":"2026-07-05T03:12:07Z"},{"alias_kind":"doi","alias_value":"10.48550/arxiv.2106.05163","created_at":"2026-07-05T03:12:07Z"},{"alias_kind":"pith_short_12","alias_value":"6FWFQG625OZG","created_at":"2026-07-05T03:12:07Z"},{"alias_kind":"pith_short_16","alias_value":"6FWFQG625OZG6J4R","created_at":"2026-07-05T03:12:07Z"},{"alias_kind":"pith_short_8","alias_value":"6FWFQG62","created_at":"2026-07-05T03:12:07Z"}],"events":[{"event_type":"record_created","subject_pith_number":"pith:2021:6FWFQG625OZG6J4REIE35HHMVC","target":"record","payload":{"canonical_record":{"source":{"id":"2106.05163","kind":"arxiv","version":1},"metadata":{"license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"gr-qc","submitted_at":"2021-06-09T16:10:56Z","cross_cats_sorted":[],"title_canon_sha256":"fcac192de45c055dbebd32a00f69e44a6a4c40ba5aa6c887b4f221b9cc95564c","abstract_canon_sha256":"442711236a08092d370605cb7f9630add96095053f81ea7098f73e3fce40fc1e"},"schema_version":"1.0"},"canonical_sha256":"f16c581bdaebb26f27912209be9ceca8a12f6729031a6a13bb066841cd564c5e","receipt":{"kind":"pith_receipt","key_id":"pith-v1-2026-05","algorithm":"ed25519","signed_at":"2026-07-05T03:12:07.522089Z","signature_b64":"SMa1igSlclEdf9fztdwpGVBDSha6HE1IABAqqtWjNGlPxmmjbkAOsCKoZSq9xP6vdUc7z3M0WuM4FEMcJFjRAA==","signed_message":"canonical_sha256_bytes","builder_version":"pith-number-builder-2026-05-17-v1","receipt_version":"0.3","canonical_sha256":"f16c581bdaebb26f27912209be9ceca8a12f6729031a6a13bb066841cd564c5e","last_reissued_at":"2026-07-05T03:12:07.521731Z","signature_status":"signed_v1","first_computed_at":"2026-07-05T03:12:07.521731Z","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54"},"source_kind":"arxiv","source_id":"2106.05163","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":"2026-07-05T03:12:07Z","supersedes":[],"prev_event":null,"signature":{"signature_status":"signed_v1","algorithm":"ed25519","key_id":"pith-v1-2026-05","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54","signature_b64":"5+0fay8iivZq1xU1Jawz0DP5L+XjLM9j2X/OT6zLkrUkX7XSOSIasnaZPvFAHpbJ2+gq385xGfNNcQdjNR0NDg==","signed_message":"open_graph_event_sha256_bytes","signed_at":"2026-08-17T16:01:55.443387Z"},"content_sha256":"d900380b9918ddc7ac4a63503f88e63f24cc5b20e9d2ec2c52efc16fc19066bb","schema_version":"1.0","event_id":"sha256:d900380b9918ddc7ac4a63503f88e63f24cc5b20e9d2ec2c52efc16fc19066bb"},{"event_type":"graph_snapshot","subject_pith_number":"pith:2021:6FWFQG625OZG6J4REIE35HHMVC","target":"graph","payload":{"graph_snapshot":{"paper":{"title":"The First-Order Velocity Memory Effect from Compact Binary Coalescing Sources","license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","headline":"","cross_cats":[],"primary_cat":"gr-qc","authors_text":"Atul K. Divakarla, Bernard F. Whiting","submitted_at":"2021-06-09T16:10:56Z","abstract_excerpt":"It has long been known that gravitational waves from compact binary coalescing sources are responsible for a first-order displacement memory effect experienced by a pair of freely falling test masses. This constant displacement is sourced from the non-vanishing final gravitational-wave strain present in the wave's after-zone, often referred to as the non-linear memory effect, and is of the same order of magnitude as the strain from the outgoing quadrupole radiation. Hence, this prediction of general relativity is verifiable experimentally by measurement of the final relative separation between"},"claims":{"count":0,"items":[],"snapshot_sha256":"258153158e38e3291e3d48162225fcdb2d5a3ed65a07baac614ab91432fd4f57"},"source":{"id":"2106.05163","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/2106.05163/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":"2026-07-05T03:12:07Z","supersedes":[],"prev_event":null,"signature":{"signature_status":"signed_v1","algorithm":"ed25519","key_id":"pith-v1-2026-05","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54","signature_b64":"tQ2K+mpd0ZnesYy/cxJMrAxeDfv8231M1peGLSOSBgFSseMouGC0RhoGuhYgpfYpwkXDiEKQvFQK5YHlMZhzAg==","signed_message":"open_graph_event_sha256_bytes","signed_at":"2026-08-17T16:01:55.444464Z"},"content_sha256":"d42823ba68107bdce7a3ca4834d25b772238d0fd7b6ab21aa84d041b06970678","schema_version":"1.0","event_id":"sha256:d42823ba68107bdce7a3ca4834d25b772238d0fd7b6ab21aa84d041b06970678"}],"timestamp_proofs":[],"mirror_hints":[{"mirror_type":"https","name":"Pith Resolver","base_url":"https://pith.science","bundle_url":"https://pith.science/pith/6FWFQG625OZG6J4REIE35HHMVC/bundle.json","state_url":"https://pith.science/pith/6FWFQG625OZG6J4REIE35HHMVC/state.json","well_known_bundle_url":"https://pith.science/.well-known/pith/6FWFQG625OZG6J4REIE35HHMVC/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":"2026-08-17T16:01:55Z","links":{"resolver":"https://pith.science/pith/6FWFQG625OZG6J4REIE35HHMVC","bundle":"https://pith.science/pith/6FWFQG625OZG6J4REIE35HHMVC/bundle.json","state":"https://pith.science/pith/6FWFQG625OZG6J4REIE35HHMVC/state.json","well_known_bundle":"https://pith.science/.well-known/pith/6FWFQG625OZG6J4REIE35HHMVC/bundle.json"},"state":{"state_type":"pith_open_graph_state","state_version":"1.0","pith_number":"pith:2021:6FWFQG625OZG6J4REIE35HHMVC","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":"442711236a08092d370605cb7f9630add96095053f81ea7098f73e3fce40fc1e","cross_cats_sorted":[],"license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"gr-qc","submitted_at":"2021-06-09T16:10:56Z","title_canon_sha256":"fcac192de45c055dbebd32a00f69e44a6a4c40ba5aa6c887b4f221b9cc95564c"},"schema_version":"1.0","source":{"id":"2106.05163","kind":"arxiv","version":1}},"source_aliases":[{"alias_kind":"arxiv","alias_value":"2106.05163","created_at":"2026-07-05T03:12:07Z"},{"alias_kind":"arxiv_version","alias_value":"2106.05163v1","created_at":"2026-07-05T03:12:07Z"},{"alias_kind":"doi","alias_value":"10.48550/arxiv.2106.05163","created_at":"2026-07-05T03:12:07Z"},{"alias_kind":"pith_short_12","alias_value":"6FWFQG625OZG","created_at":"2026-07-05T03:12:07Z"},{"alias_kind":"pith_short_16","alias_value":"6FWFQG625OZG6J4R","created_at":"2026-07-05T03:12:07Z"},{"alias_kind":"pith_short_8","alias_value":"6FWFQG62","created_at":"2026-07-05T03:12:07Z"}],"graph_snapshots":[{"event_id":"sha256:d42823ba68107bdce7a3ca4834d25b772238d0fd7b6ab21aa84d041b06970678","target":"graph","created_at":"2026-07-05T03:12:07Z","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/2106.05163/integrity.json","findings":[],"snapshot_sha256":"c28c3603d3b5d939e8dc4c7e95fa8dfce3d595e45f758748cecf8e644a296938","summary":{"advisory":0,"by_detector":{},"critical":0,"informational":0}},"paper":{"abstract_excerpt":"It has long been known that gravitational waves from compact binary coalescing sources are responsible for a first-order displacement memory effect experienced by a pair of freely falling test masses. This constant displacement is sourced from the non-vanishing final gravitational-wave strain present in the wave's after-zone, often referred to as the non-linear memory effect, and is of the same order of magnitude as the strain from the outgoing quadrupole radiation. Hence, this prediction of general relativity is verifiable experimentally by measurement of the final relative separation between","authors_text":"Atul K. Divakarla, Bernard F. Whiting","cross_cats":[],"headline":"","license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"gr-qc","submitted_at":"2021-06-09T16:10:56Z","title":"The First-Order Velocity Memory Effect from Compact Binary Coalescing Sources"},"references":{"count":0,"internal_anchors":0,"resolved_work":0,"sample":[],"snapshot_sha256":"258153158e38e3291e3d48162225fcdb2d5a3ed65a07baac614ab91432fd4f57"},"source":{"id":"2106.05163","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:d900380b9918ddc7ac4a63503f88e63f24cc5b20e9d2ec2c52efc16fc19066bb","target":"record","created_at":"2026-07-05T03:12:07Z","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":"442711236a08092d370605cb7f9630add96095053f81ea7098f73e3fce40fc1e","cross_cats_sorted":[],"license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"gr-qc","submitted_at":"2021-06-09T16:10:56Z","title_canon_sha256":"fcac192de45c055dbebd32a00f69e44a6a4c40ba5aa6c887b4f221b9cc95564c"},"schema_version":"1.0","source":{"id":"2106.05163","kind":"arxiv","version":1}},"canonical_sha256":"f16c581bdaebb26f27912209be9ceca8a12f6729031a6a13bb066841cd564c5e","receipt":{"algorithm":"ed25519","builder_version":"pith-number-builder-2026-05-17-v1","canonical_sha256":"f16c581bdaebb26f27912209be9ceca8a12f6729031a6a13bb066841cd564c5e","first_computed_at":"2026-07-05T03:12:07.521731Z","key_id":"pith-v1-2026-05","kind":"pith_receipt","last_reissued_at":"2026-07-05T03:12:07.521731Z","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54","receipt_version":"0.3","signature_b64":"SMa1igSlclEdf9fztdwpGVBDSha6HE1IABAqqtWjNGlPxmmjbkAOsCKoZSq9xP6vdUc7z3M0WuM4FEMcJFjRAA==","signature_status":"signed_v1","signed_at":"2026-07-05T03:12:07.522089Z","signed_message":"canonical_sha256_bytes"},"source_id":"2106.05163","source_kind":"arxiv","source_version":1}}},"equivocations":[],"invalid_events":[],"applied_event_ids":["sha256:d900380b9918ddc7ac4a63503f88e63f24cc5b20e9d2ec2c52efc16fc19066bb","sha256:d42823ba68107bdce7a3ca4834d25b772238d0fd7b6ab21aa84d041b06970678"],"state_sha256":"a41fec397cd301916c5cb34fe28c172fd2d3c0cf895fba4e3f0fdb43609941bb"},"bundle_signature":{"signature_status":"signed_v1","algorithm":"ed25519","key_id":"pith-v1-2026-05","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54","signature_b64":"EbA1A/WF5C4+nuMsQxmVRLEHoVccaYNrtcxQEXy6Cca61byPojjh8DsM8kQgWzgeLHwy6bHA1+1naS4Ry3tKCQ==","signed_message":"bundle_sha256_bytes","signed_at":"2026-08-17T16:01:55.451528Z","bundle_sha256":"14d9532af658b299c1bcd18d55d0be7c0e5e238a89708ce00273884bf5c3fe4f"}}