{"bundle_type":"pith_open_graph_bundle","bundle_version":"1.0","pith_number":"pith:2018:WLCUQPGRJCUKNVJLKNC7DPUZXN","short_pith_number":"pith:WLCUQPGR","canonical_record":{"source":{"id":"1810.06332","kind":"arxiv","version":1},"metadata":{"license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"gr-qc","submitted_at":"2018-10-15T13:09:52Z","cross_cats_sorted":["astro-ph.HE","hep-ph"],"title_canon_sha256":"9f85e3439954e49580f92ece9b4aa046c9045c2d7f6b4b115861b25cefb4ad42","abstract_canon_sha256":"996afafd64b881c402db0d3833262da8b196751db1b87bc700955feed50b74b5"},"schema_version":"1.0"},"canonical_sha256":"b2c5483cd148a8a6d52b5345f1be99bb5c2855b06193319dd762f68944b296a4","source":{"kind":"arxiv","id":"1810.06332","version":1},"source_aliases":[{"alias_kind":"arxiv","alias_value":"1810.06332","created_at":"2026-05-18T00:02:08Z"},{"alias_kind":"arxiv_version","alias_value":"1810.06332v1","created_at":"2026-05-18T00:02:08Z"},{"alias_kind":"doi","alias_value":"10.48550/arxiv.1810.06332","created_at":"2026-05-18T00:02:08Z"},{"alias_kind":"pith_short_12","alias_value":"WLCUQPGRJCUK","created_at":"2026-05-18T12:33:01Z"},{"alias_kind":"pith_short_16","alias_value":"WLCUQPGRJCUKNVJL","created_at":"2026-05-18T12:33:01Z"},{"alias_kind":"pith_short_8","alias_value":"WLCUQPGR","created_at":"2026-05-18T12:33:01Z"}],"events":[{"event_type":"record_created","subject_pith_number":"pith:2018:WLCUQPGRJCUKNVJLKNC7DPUZXN","target":"record","payload":{"canonical_record":{"source":{"id":"1810.06332","kind":"arxiv","version":1},"metadata":{"license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"gr-qc","submitted_at":"2018-10-15T13:09:52Z","cross_cats_sorted":["astro-ph.HE","hep-ph"],"title_canon_sha256":"9f85e3439954e49580f92ece9b4aa046c9045c2d7f6b4b115861b25cefb4ad42","abstract_canon_sha256":"996afafd64b881c402db0d3833262da8b196751db1b87bc700955feed50b74b5"},"schema_version":"1.0"},"canonical_sha256":"b2c5483cd148a8a6d52b5345f1be99bb5c2855b06193319dd762f68944b296a4","receipt":{"kind":"pith_receipt","key_id":"pith-v1-2026-05","algorithm":"ed25519","signed_at":"2026-05-18T00:02:08.873400Z","signature_b64":"Uuusj8z4589E5ivbV+vYLipHOSWMacKTeYV02OjPqxlID8bdL539TzwdIr0DHL9HRrUSaF9A7pjFN3gn4+vTDQ==","signed_message":"canonical_sha256_bytes","builder_version":"pith-number-builder-2026-05-17-v1","receipt_version":"0.3","canonical_sha256":"b2c5483cd148a8a6d52b5345f1be99bb5c2855b06193319dd762f68944b296a4","last_reissued_at":"2026-05-18T00:02:08.872627Z","signature_status":"signed_v1","first_computed_at":"2026-05-18T00:02:08.872627Z","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54"},"source_kind":"arxiv","source_id":"1810.06332","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":"2026-05-18T00:02:08Z","supersedes":[],"prev_event":null,"signature":{"signature_status":"signed_v1","algorithm":"ed25519","key_id":"pith-v1-2026-05","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54","signature_b64":"zoIMyc8zGLU2dD9MSf9IiF0ijEZ0kH8mYB8L0NKhxG15+zfEncquiUuFOJOC4UN0hkFrmZPEMh0wwtagz9kIBA==","signed_message":"open_graph_event_sha256_bytes","signed_at":"2026-05-30T19:45:13.915408Z"},"content_sha256":"8a8ff965cf62d4d995fe7047df06cf54eb689f0418e6a6ea26df436e3478c3c3","schema_version":"1.0","event_id":"sha256:8a8ff965cf62d4d995fe7047df06cf54eb689f0418e6a6ea26df436e3478c3c3"},{"event_type":"graph_snapshot","subject_pith_number":"pith:2018:WLCUQPGRJCUKNVJLKNC7DPUZXN","target":"graph","payload":{"graph_snapshot":{"paper":{"title":"Testing velocity-dependent CPT-violating gravitational forces with radio pulsars","license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","headline":"","cross_cats":["astro-ph.HE","hep-ph"],"primary_cat":"gr-qc","authors_text":"Lijing Shao, Quentin G. Bailey","submitted_at":"2018-10-15T13:09:52Z","abstract_excerpt":"In the spirit of effective field theory, the Standard-Model Extension (SME) provides a comprehensive framework to systematically probe the possibility of Lorentz/CPT violation. In the pure gravity sector, operators with mass dimension larger than 4, while in general being advantageous to short-range experiments, are hard to investigate with systems of astronomical size. However, there is exception if the leading-order effects are CPT-violating and velocity-dependent. Here we study the lowest-order operators in the pure gravity sector that violate the CPT symmetry with carefully chosen relativi"},"claims":{"count":0,"items":[],"snapshot_sha256":"258153158e38e3291e3d48162225fcdb2d5a3ed65a07baac614ab91432fd4f57"},"source":{"id":"1810.06332","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":""},"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":"2026-05-18T00:02:08Z","supersedes":[],"prev_event":null,"signature":{"signature_status":"signed_v1","algorithm":"ed25519","key_id":"pith-v1-2026-05","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54","signature_b64":"fIG+E0eMg272Ma1od848DJ9oExNo40vmUwEL3rEBYLXT+R0iHL5nLYCmphjoS0hkR9OteJn8jJcEs4fx1OHBCg==","signed_message":"open_graph_event_sha256_bytes","signed_at":"2026-05-30T19:45:13.916115Z"},"content_sha256":"fe5486e52ca73cf20a3cf53651a0ffaffa1e2a0f81ea4e5d5774c5d6841ba243","schema_version":"1.0","event_id":"sha256:fe5486e52ca73cf20a3cf53651a0ffaffa1e2a0f81ea4e5d5774c5d6841ba243"}],"timestamp_proofs":[],"mirror_hints":[{"mirror_type":"https","name":"Pith Resolver","base_url":"https://pith.science","bundle_url":"https://pith.science/pith/WLCUQPGRJCUKNVJLKNC7DPUZXN/bundle.json","state_url":"https://pith.science/pith/WLCUQPGRJCUKNVJLKNC7DPUZXN/state.json","well_known_bundle_url":"https://pith.science/.well-known/pith/WLCUQPGRJCUKNVJLKNC7DPUZXN/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":"2026-05-30T19:45:13Z","links":{"resolver":"https://pith.science/pith/WLCUQPGRJCUKNVJLKNC7DPUZXN","bundle":"https://pith.science/pith/WLCUQPGRJCUKNVJLKNC7DPUZXN/bundle.json","state":"https://pith.science/pith/WLCUQPGRJCUKNVJLKNC7DPUZXN/state.json","well_known_bundle":"https://pith.science/.well-known/pith/WLCUQPGRJCUKNVJLKNC7DPUZXN/bundle.json"},"state":{"state_type":"pith_open_graph_state","state_version":"1.0","pith_number":"pith:2018:WLCUQPGRJCUKNVJLKNC7DPUZXN","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":"996afafd64b881c402db0d3833262da8b196751db1b87bc700955feed50b74b5","cross_cats_sorted":["astro-ph.HE","hep-ph"],"license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"gr-qc","submitted_at":"2018-10-15T13:09:52Z","title_canon_sha256":"9f85e3439954e49580f92ece9b4aa046c9045c2d7f6b4b115861b25cefb4ad42"},"schema_version":"1.0","source":{"id":"1810.06332","kind":"arxiv","version":1}},"source_aliases":[{"alias_kind":"arxiv","alias_value":"1810.06332","created_at":"2026-05-18T00:02:08Z"},{"alias_kind":"arxiv_version","alias_value":"1810.06332v1","created_at":"2026-05-18T00:02:08Z"},{"alias_kind":"doi","alias_value":"10.48550/arxiv.1810.06332","created_at":"2026-05-18T00:02:08Z"},{"alias_kind":"pith_short_12","alias_value":"WLCUQPGRJCUK","created_at":"2026-05-18T12:33:01Z"},{"alias_kind":"pith_short_16","alias_value":"WLCUQPGRJCUKNVJL","created_at":"2026-05-18T12:33:01Z"},{"alias_kind":"pith_short_8","alias_value":"WLCUQPGR","created_at":"2026-05-18T12:33:01Z"}],"graph_snapshots":[{"event_id":"sha256:fe5486e52ca73cf20a3cf53651a0ffaffa1e2a0f81ea4e5d5774c5d6841ba243","target":"graph","created_at":"2026-05-18T00:02:08Z","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"},"paper":{"abstract_excerpt":"In the spirit of effective field theory, the Standard-Model Extension (SME) provides a comprehensive framework to systematically probe the possibility of Lorentz/CPT violation. In the pure gravity sector, operators with mass dimension larger than 4, while in general being advantageous to short-range experiments, are hard to investigate with systems of astronomical size. However, there is exception if the leading-order effects are CPT-violating and velocity-dependent. Here we study the lowest-order operators in the pure gravity sector that violate the CPT symmetry with carefully chosen relativi","authors_text":"Lijing Shao, Quentin G. Bailey","cross_cats":["astro-ph.HE","hep-ph"],"headline":"","license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"gr-qc","submitted_at":"2018-10-15T13:09:52Z","title":"Testing velocity-dependent CPT-violating gravitational forces with radio pulsars"},"references":{"count":0,"internal_anchors":0,"resolved_work":0,"sample":[],"snapshot_sha256":"258153158e38e3291e3d48162225fcdb2d5a3ed65a07baac614ab91432fd4f57"},"source":{"id":"1810.06332","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":"sha256:8a8ff965cf62d4d995fe7047df06cf54eb689f0418e6a6ea26df436e3478c3c3","target":"record","created_at":"2026-05-18T00:02:08Z","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":"996afafd64b881c402db0d3833262da8b196751db1b87bc700955feed50b74b5","cross_cats_sorted":["astro-ph.HE","hep-ph"],"license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"gr-qc","submitted_at":"2018-10-15T13:09:52Z","title_canon_sha256":"9f85e3439954e49580f92ece9b4aa046c9045c2d7f6b4b115861b25cefb4ad42"},"schema_version":"1.0","source":{"id":"1810.06332","kind":"arxiv","version":1}},"canonical_sha256":"b2c5483cd148a8a6d52b5345f1be99bb5c2855b06193319dd762f68944b296a4","receipt":{"algorithm":"ed25519","builder_version":"pith-number-builder-2026-05-17-v1","canonical_sha256":"b2c5483cd148a8a6d52b5345f1be99bb5c2855b06193319dd762f68944b296a4","first_computed_at":"2026-05-18T00:02:08.872627Z","key_id":"pith-v1-2026-05","kind":"pith_receipt","last_reissued_at":"2026-05-18T00:02:08.872627Z","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54","receipt_version":"0.3","signature_b64":"Uuusj8z4589E5ivbV+vYLipHOSWMacKTeYV02OjPqxlID8bdL539TzwdIr0DHL9HRrUSaF9A7pjFN3gn4+vTDQ==","signature_status":"signed_v1","signed_at":"2026-05-18T00:02:08.873400Z","signed_message":"canonical_sha256_bytes"},"source_id":"1810.06332","source_kind":"arxiv","source_version":1}}},"equivocations":[],"invalid_events":[],"applied_event_ids":["sha256:8a8ff965cf62d4d995fe7047df06cf54eb689f0418e6a6ea26df436e3478c3c3","sha256:fe5486e52ca73cf20a3cf53651a0ffaffa1e2a0f81ea4e5d5774c5d6841ba243"],"state_sha256":"0bc2d8123d8491cd40dcf8f497ae9f48b0c4c68a6c49594e394e597f02787617"},"bundle_signature":{"signature_status":"signed_v1","algorithm":"ed25519","key_id":"pith-v1-2026-05","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54","signature_b64":"owUpKMUaeEcU4uwK04teMDJEsr/kCJq81DZ2YgTERT5EnkB2Bhoec+RCceAp824XYEQJwv1lWZcctU+XNGpDBQ==","signed_message":"bundle_sha256_bytes","signed_at":"2026-05-30T19:45:13.919503Z","bundle_sha256":"38abc80ca140d329f764008c5c99c207fdbad14617af8eecac8807bd4ce56f2b"}}