{"bundle_type":"pith_open_graph_bundle","bundle_version":"1.0","pith_number":"pith:2015:RCTIKREEHVTXANENJCS6L2H26N","short_pith_number":"pith:RCTIKREE","canonical_record":{"source":{"id":"1505.07179","kind":"arxiv","version":1},"metadata":{"license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"gr-qc","submitted_at":"2015-05-27T02:43:59Z","cross_cats_sorted":[],"title_canon_sha256":"6b8cb1f94f062486bd2b3ab965d7da24f7f4b1e2fac17915cfc6c6804f60395e","abstract_canon_sha256":"089ccbe6c81a2824473cd37a6d0d4c102c3ed5210bd15217e21f482ffdceb1af"},"schema_version":"1.0"},"canonical_sha256":"88a68544843d6770348d48a5e5e8faf3776b2a90c8d5b7cee5a65559682a9059","source":{"kind":"arxiv","id":"1505.07179","version":1},"source_aliases":[{"alias_kind":"arxiv","alias_value":"1505.07179","created_at":"2026-05-18T01:35:04Z"},{"alias_kind":"arxiv_version","alias_value":"1505.07179v1","created_at":"2026-05-18T01:35:04Z"},{"alias_kind":"doi","alias_value":"10.48550/arxiv.1505.07179","created_at":"2026-05-18T01:35:04Z"},{"alias_kind":"pith_short_12","alias_value":"RCTIKREEHVTX","created_at":"2026-05-18T12:29:39Z"},{"alias_kind":"pith_short_16","alias_value":"RCTIKREEHVTXANEN","created_at":"2026-05-18T12:29:39Z"},{"alias_kind":"pith_short_8","alias_value":"RCTIKREE","created_at":"2026-05-18T12:29:39Z"}],"events":[{"event_type":"record_created","subject_pith_number":"pith:2015:RCTIKREEHVTXANENJCS6L2H26N","target":"record","payload":{"canonical_record":{"source":{"id":"1505.07179","kind":"arxiv","version":1},"metadata":{"license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"gr-qc","submitted_at":"2015-05-27T02:43:59Z","cross_cats_sorted":[],"title_canon_sha256":"6b8cb1f94f062486bd2b3ab965d7da24f7f4b1e2fac17915cfc6c6804f60395e","abstract_canon_sha256":"089ccbe6c81a2824473cd37a6d0d4c102c3ed5210bd15217e21f482ffdceb1af"},"schema_version":"1.0"},"canonical_sha256":"88a68544843d6770348d48a5e5e8faf3776b2a90c8d5b7cee5a65559682a9059","receipt":{"kind":"pith_receipt","key_id":"pith-v1-2026-05","algorithm":"ed25519","signed_at":"2026-05-18T01:35:04.637085Z","signature_b64":"lLiHVdt2KxuIRE8Tg6+Mq4PHgWZERlBRkaPQxJ1N0/N2HYJGIehtG+hL9M6axRHYtNCH5HEU8sq7bKXwOdYUBA==","signed_message":"canonical_sha256_bytes","builder_version":"pith-number-builder-2026-05-17-v1","receipt_version":"0.3","canonical_sha256":"88a68544843d6770348d48a5e5e8faf3776b2a90c8d5b7cee5a65559682a9059","last_reissued_at":"2026-05-18T01:35:04.636639Z","signature_status":"signed_v1","first_computed_at":"2026-05-18T01:35:04.636639Z","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54"},"source_kind":"arxiv","source_id":"1505.07179","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":"2026-05-18T01:35:04Z","supersedes":[],"prev_event":null,"signature":{"signature_status":"signed_v1","algorithm":"ed25519","key_id":"pith-v1-2026-05","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54","signature_b64":"p0+p+eQrnnx7K+HCBkKwh+UdayAIiidfh0C+Q7abgWxYHXURy4MSuAI5s5TlnXdrP/ekxNoXH3U/EWbk4SzbAw==","signed_message":"open_graph_event_sha256_bytes","signed_at":"2026-05-19T21:11:06.864486Z"},"content_sha256":"9c1aca91a45c0ba77b6538e85783ec246d8cc2b01dd883f4ff38903054447c3a","schema_version":"1.0","event_id":"sha256:9c1aca91a45c0ba77b6538e85783ec246d8cc2b01dd883f4ff38903054447c3a"},{"event_type":"graph_snapshot","subject_pith_number":"pith:2015:RCTIKREEHVTXANENJCS6L2H26N","target":"graph","payload":{"graph_snapshot":{"paper":{"title":"Phase-coherent mapping of gravitational-wave backgrounds using ground-based laser interferometers","license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","headline":"","cross_cats":[],"primary_cat":"gr-qc","authors_text":"Chiara M. F. Mingarelli, Jonathan Gair, Joseph D. Romano, Neil J. Cornish, Rutger van Haasteren, Stephen R. Taylor","submitted_at":"2015-05-27T02:43:59Z","abstract_excerpt":"We extend the formalisms developed in Gair et al. and Cornish and van Haasteren to create maps of gravitational-wave backgrounds using a network of ground-based laser interferometers. We show that in contrast to pulsar timing arrays, which are insensitive to half of the gravitational-wave sky (the curl modes), a network of ground-based interferometers is sensitive to both the gradient and curl components of the background. The spatial separation of a network of interferometers, or of a single interferometer at different times during its rotational and orbital motion around the Sun, allows for "},"claims":{"count":0,"items":[],"snapshot_sha256":"258153158e38e3291e3d48162225fcdb2d5a3ed65a07baac614ab91432fd4f57"},"source":{"id":"1505.07179","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":"2026-05-18T01:35:04Z","supersedes":[],"prev_event":null,"signature":{"signature_status":"signed_v1","algorithm":"ed25519","key_id":"pith-v1-2026-05","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54","signature_b64":"hvK5LcL1hPeF6vezqXjA4yhsQyZeUF3NV+f4OJFXg9h/R49ACtsgieZkXw3+7cmS9/2OM7gpUWAdLeX3G8jtAQ==","signed_message":"open_graph_event_sha256_bytes","signed_at":"2026-05-19T21:11:06.864832Z"},"content_sha256":"af1af9267c9e0e8f7cebb2b0acb9cd387ef32c7efca66d376493f3cf1be0466f","schema_version":"1.0","event_id":"sha256:af1af9267c9e0e8f7cebb2b0acb9cd387ef32c7efca66d376493f3cf1be0466f"}],"timestamp_proofs":[],"mirror_hints":[{"mirror_type":"https","name":"Pith Resolver","base_url":"https://pith.science","bundle_url":"https://pith.science/pith/RCTIKREEHVTXANENJCS6L2H26N/bundle.json","state_url":"https://pith.science/pith/RCTIKREEHVTXANENJCS6L2H26N/state.json","well_known_bundle_url":"https://pith.science/.well-known/pith/RCTIKREEHVTXANENJCS6L2H26N/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":"2026-05-19T21:11:06Z","links":{"resolver":"https://pith.science/pith/RCTIKREEHVTXANENJCS6L2H26N","bundle":"https://pith.science/pith/RCTIKREEHVTXANENJCS6L2H26N/bundle.json","state":"https://pith.science/pith/RCTIKREEHVTXANENJCS6L2H26N/state.json","well_known_bundle":"https://pith.science/.well-known/pith/RCTIKREEHVTXANENJCS6L2H26N/bundle.json"},"state":{"state_type":"pith_open_graph_state","state_version":"1.0","pith_number":"pith:2015:RCTIKREEHVTXANENJCS6L2H26N","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":"089ccbe6c81a2824473cd37a6d0d4c102c3ed5210bd15217e21f482ffdceb1af","cross_cats_sorted":[],"license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"gr-qc","submitted_at":"2015-05-27T02:43:59Z","title_canon_sha256":"6b8cb1f94f062486bd2b3ab965d7da24f7f4b1e2fac17915cfc6c6804f60395e"},"schema_version":"1.0","source":{"id":"1505.07179","kind":"arxiv","version":1}},"source_aliases":[{"alias_kind":"arxiv","alias_value":"1505.07179","created_at":"2026-05-18T01:35:04Z"},{"alias_kind":"arxiv_version","alias_value":"1505.07179v1","created_at":"2026-05-18T01:35:04Z"},{"alias_kind":"doi","alias_value":"10.48550/arxiv.1505.07179","created_at":"2026-05-18T01:35:04Z"},{"alias_kind":"pith_short_12","alias_value":"RCTIKREEHVTX","created_at":"2026-05-18T12:29:39Z"},{"alias_kind":"pith_short_16","alias_value":"RCTIKREEHVTXANEN","created_at":"2026-05-18T12:29:39Z"},{"alias_kind":"pith_short_8","alias_value":"RCTIKREE","created_at":"2026-05-18T12:29:39Z"}],"graph_snapshots":[{"event_id":"sha256:af1af9267c9e0e8f7cebb2b0acb9cd387ef32c7efca66d376493f3cf1be0466f","target":"graph","created_at":"2026-05-18T01:35:04Z","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":"We extend the formalisms developed in Gair et al. and Cornish and van Haasteren to create maps of gravitational-wave backgrounds using a network of ground-based laser interferometers. We show that in contrast to pulsar timing arrays, which are insensitive to half of the gravitational-wave sky (the curl modes), a network of ground-based interferometers is sensitive to both the gradient and curl components of the background. The spatial separation of a network of interferometers, or of a single interferometer at different times during its rotational and orbital motion around the Sun, allows for ","authors_text":"Chiara M. F. Mingarelli, Jonathan Gair, Joseph D. Romano, Neil J. Cornish, Rutger van Haasteren, Stephen R. Taylor","cross_cats":[],"headline":"","license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"gr-qc","submitted_at":"2015-05-27T02:43:59Z","title":"Phase-coherent mapping of gravitational-wave backgrounds using ground-based laser interferometers"},"references":{"count":0,"internal_anchors":0,"resolved_work":0,"sample":[],"snapshot_sha256":"258153158e38e3291e3d48162225fcdb2d5a3ed65a07baac614ab91432fd4f57"},"source":{"id":"1505.07179","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":"sha256:9c1aca91a45c0ba77b6538e85783ec246d8cc2b01dd883f4ff38903054447c3a","target":"record","created_at":"2026-05-18T01:35:04Z","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":"089ccbe6c81a2824473cd37a6d0d4c102c3ed5210bd15217e21f482ffdceb1af","cross_cats_sorted":[],"license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"gr-qc","submitted_at":"2015-05-27T02:43:59Z","title_canon_sha256":"6b8cb1f94f062486bd2b3ab965d7da24f7f4b1e2fac17915cfc6c6804f60395e"},"schema_version":"1.0","source":{"id":"1505.07179","kind":"arxiv","version":1}},"canonical_sha256":"88a68544843d6770348d48a5e5e8faf3776b2a90c8d5b7cee5a65559682a9059","receipt":{"algorithm":"ed25519","builder_version":"pith-number-builder-2026-05-17-v1","canonical_sha256":"88a68544843d6770348d48a5e5e8faf3776b2a90c8d5b7cee5a65559682a9059","first_computed_at":"2026-05-18T01:35:04.636639Z","key_id":"pith-v1-2026-05","kind":"pith_receipt","last_reissued_at":"2026-05-18T01:35:04.636639Z","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54","receipt_version":"0.3","signature_b64":"lLiHVdt2KxuIRE8Tg6+Mq4PHgWZERlBRkaPQxJ1N0/N2HYJGIehtG+hL9M6axRHYtNCH5HEU8sq7bKXwOdYUBA==","signature_status":"signed_v1","signed_at":"2026-05-18T01:35:04.637085Z","signed_message":"canonical_sha256_bytes"},"source_id":"1505.07179","source_kind":"arxiv","source_version":1}}},"equivocations":[],"invalid_events":[],"applied_event_ids":["sha256:9c1aca91a45c0ba77b6538e85783ec246d8cc2b01dd883f4ff38903054447c3a","sha256:af1af9267c9e0e8f7cebb2b0acb9cd387ef32c7efca66d376493f3cf1be0466f"],"state_sha256":"8251b50faa8d3696c8c2cc58a1351caa386439b198f75b08a1e129880be41e54"},"bundle_signature":{"signature_status":"signed_v1","algorithm":"ed25519","key_id":"pith-v1-2026-05","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54","signature_b64":"EP7achWXNMcWrT4NzoNEK12krpfrd2WOPSx/x7SeccVIyCtwjg2WL4ueW1jfIx1FE2rq0vVK7Vh3Bcf+nOXeBw==","signed_message":"bundle_sha256_bytes","signed_at":"2026-05-19T21:11:06.866754Z","bundle_sha256":"5cce4211fd360ab02d01b47f24ac98a6a5ec536d5a2f00628b61cbbff1f6a937"}}