{"bundle_type":"pith_open_graph_bundle","bundle_version":"1.0","pith_number":"pith:2014:FBF5LES7TLO3CDW5DYDVGBWRR5","short_pith_number":"pith:FBF5LES7","canonical_record":{"source":{"id":"1407.8184","kind":"arxiv","version":2},"metadata":{"license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"astro-ph.CO","submitted_at":"2014-07-30T20:00:05Z","cross_cats_sorted":["gr-qc"],"title_canon_sha256":"f1729cf16739a0d83380e3d2f20b676e08bd238d33d49979f27e79abfc370cbd","abstract_canon_sha256":"bb2ed5240c456864007209113cf2dee1ee74eab46e4994872280e7e76402d8d6"},"schema_version":"1.0"},"canonical_sha256":"284bd5925f9addb10edd1e075306d18f7010590d8f293e0cedc7d7b355c7e920","source":{"kind":"arxiv","id":"1407.8184","version":2},"source_aliases":[{"alias_kind":"arxiv","alias_value":"1407.8184","created_at":"2026-05-18T02:38:45Z"},{"alias_kind":"arxiv_version","alias_value":"1407.8184v2","created_at":"2026-05-18T02:38:45Z"},{"alias_kind":"doi","alias_value":"10.48550/arxiv.1407.8184","created_at":"2026-05-18T02:38:45Z"},{"alias_kind":"pith_short_12","alias_value":"FBF5LES7TLO3","created_at":"2026-05-18T12:28:28Z"},{"alias_kind":"pith_short_16","alias_value":"FBF5LES7TLO3CDW5","created_at":"2026-05-18T12:28:28Z"},{"alias_kind":"pith_short_8","alias_value":"FBF5LES7","created_at":"2026-05-18T12:28:28Z"}],"events":[{"event_type":"record_created","subject_pith_number":"pith:2014:FBF5LES7TLO3CDW5DYDVGBWRR5","target":"record","payload":{"canonical_record":{"source":{"id":"1407.8184","kind":"arxiv","version":2},"metadata":{"license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"astro-ph.CO","submitted_at":"2014-07-30T20:00:05Z","cross_cats_sorted":["gr-qc"],"title_canon_sha256":"f1729cf16739a0d83380e3d2f20b676e08bd238d33d49979f27e79abfc370cbd","abstract_canon_sha256":"bb2ed5240c456864007209113cf2dee1ee74eab46e4994872280e7e76402d8d6"},"schema_version":"1.0"},"canonical_sha256":"284bd5925f9addb10edd1e075306d18f7010590d8f293e0cedc7d7b355c7e920","receipt":{"kind":"pith_receipt","key_id":"pith-v1-2026-05","algorithm":"ed25519","signed_at":"2026-05-18T02:38:45.883594Z","signature_b64":"HCKVFrMGplfu1NIFDkmJP8zoJCAbkx7XyuNE2jvcEmB51kIRhV0wTOmSrIBRcJ51IZ99jXoG9ZYHoRmXdww7AQ==","signed_message":"canonical_sha256_bytes","builder_version":"pith-number-builder-2026-05-17-v1","receipt_version":"0.3","canonical_sha256":"284bd5925f9addb10edd1e075306d18f7010590d8f293e0cedc7d7b355c7e920","last_reissued_at":"2026-05-18T02:38:45.882890Z","signature_status":"signed_v1","first_computed_at":"2026-05-18T02:38:45.882890Z","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54"},"source_kind":"arxiv","source_id":"1407.8184","source_version":2,"attestation_state":"computed"},"signer":{"signer_id":"pith.science","signer_type":"pith_registry","key_id":"pith-v1-2026-05","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54"},"created_at":"2026-05-18T02:38:45Z","supersedes":[],"prev_event":null,"signature":{"signature_status":"signed_v1","algorithm":"ed25519","key_id":"pith-v1-2026-05","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54","signature_b64":"egBYreVHv1r8IiXMoaeUvb8IFEZQmfQOeYgL4tbNEEO6+9pMULnUn7MIaXOzLwc22jSUWjl3oeURvVuiaVKWCw==","signed_message":"open_graph_event_sha256_bytes","signed_at":"2026-06-01T20:10:41.741191Z"},"content_sha256":"2a1614d1e299a3c1caca9a88e29a22c255bb7dc8f85a93ad44d105bd9eb967a8","schema_version":"1.0","event_id":"sha256:2a1614d1e299a3c1caca9a88e29a22c255bb7dc8f85a93ad44d105bd9eb967a8"},{"event_type":"graph_snapshot","subject_pith_number":"pith:2014:FBF5LES7TLO3CDW5DYDVGBWRR5","target":"graph","payload":{"graph_snapshot":{"paper":{"title":"Are Scalar and Tensor Deviations Related in Modified Gravity?","license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","headline":"","cross_cats":["gr-qc"],"primary_cat":"astro-ph.CO","authors_text":"Eric V. Linder","submitted_at":"2014-07-30T20:00:05Z","abstract_excerpt":"Modified gravity theories on cosmic scales have three key deviations from general relativity. They can cause cosmic acceleration without a physical, highly negative pressure fluid, can cause a gravitational slip between the two metric potentials, and can cause gravitational waves to propagate differently, e.g. with a speed different from the speed of light. We examine whether the deviations in the metric potentials as observable through modified Poisson equations for scalar density perturbations are related to or independent from deviations in the tensor gravitational waves. We show analytical"},"claims":{"count":0,"items":[],"snapshot_sha256":"258153158e38e3291e3d48162225fcdb2d5a3ed65a07baac614ab91432fd4f57"},"source":{"id":"1407.8184","kind":"arxiv","version":2},"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":"2026-05-18T02:38:45Z","supersedes":[],"prev_event":null,"signature":{"signature_status":"signed_v1","algorithm":"ed25519","key_id":"pith-v1-2026-05","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54","signature_b64":"6GO8CXK+xEy+fMhEHJuvoPhQW7LmbH2zCZufUcaRKRT1awU4prdA5tbuOp4g6qzooheA/nLZnaeaj6aLtH0eDg==","signed_message":"open_graph_event_sha256_bytes","signed_at":"2026-06-01T20:10:41.741558Z"},"content_sha256":"0c282efe8b9989c87b2c27f372cb60dfc5ab5d5aca6456463b0079bc7e862fe3","schema_version":"1.0","event_id":"sha256:0c282efe8b9989c87b2c27f372cb60dfc5ab5d5aca6456463b0079bc7e862fe3"}],"timestamp_proofs":[],"mirror_hints":[{"mirror_type":"https","name":"Pith Resolver","base_url":"https://pith.science","bundle_url":"https://pith.science/pith/FBF5LES7TLO3CDW5DYDVGBWRR5/bundle.json","state_url":"https://pith.science/pith/FBF5LES7TLO3CDW5DYDVGBWRR5/state.json","well_known_bundle_url":"https://pith.science/.well-known/pith/FBF5LES7TLO3CDW5DYDVGBWRR5/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":"2026-06-01T20:10:41Z","links":{"resolver":"https://pith.science/pith/FBF5LES7TLO3CDW5DYDVGBWRR5","bundle":"https://pith.science/pith/FBF5LES7TLO3CDW5DYDVGBWRR5/bundle.json","state":"https://pith.science/pith/FBF5LES7TLO3CDW5DYDVGBWRR5/state.json","well_known_bundle":"https://pith.science/.well-known/pith/FBF5LES7TLO3CDW5DYDVGBWRR5/bundle.json"},"state":{"state_type":"pith_open_graph_state","state_version":"1.0","pith_number":"pith:2014:FBF5LES7TLO3CDW5DYDVGBWRR5","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":"bb2ed5240c456864007209113cf2dee1ee74eab46e4994872280e7e76402d8d6","cross_cats_sorted":["gr-qc"],"license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"astro-ph.CO","submitted_at":"2014-07-30T20:00:05Z","title_canon_sha256":"f1729cf16739a0d83380e3d2f20b676e08bd238d33d49979f27e79abfc370cbd"},"schema_version":"1.0","source":{"id":"1407.8184","kind":"arxiv","version":2}},"source_aliases":[{"alias_kind":"arxiv","alias_value":"1407.8184","created_at":"2026-05-18T02:38:45Z"},{"alias_kind":"arxiv_version","alias_value":"1407.8184v2","created_at":"2026-05-18T02:38:45Z"},{"alias_kind":"doi","alias_value":"10.48550/arxiv.1407.8184","created_at":"2026-05-18T02:38:45Z"},{"alias_kind":"pith_short_12","alias_value":"FBF5LES7TLO3","created_at":"2026-05-18T12:28:28Z"},{"alias_kind":"pith_short_16","alias_value":"FBF5LES7TLO3CDW5","created_at":"2026-05-18T12:28:28Z"},{"alias_kind":"pith_short_8","alias_value":"FBF5LES7","created_at":"2026-05-18T12:28:28Z"}],"graph_snapshots":[{"event_id":"sha256:0c282efe8b9989c87b2c27f372cb60dfc5ab5d5aca6456463b0079bc7e862fe3","target":"graph","created_at":"2026-05-18T02:38:45Z","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":"Modified gravity theories on cosmic scales have three key deviations from general relativity. They can cause cosmic acceleration without a physical, highly negative pressure fluid, can cause a gravitational slip between the two metric potentials, and can cause gravitational waves to propagate differently, e.g. with a speed different from the speed of light. We examine whether the deviations in the metric potentials as observable through modified Poisson equations for scalar density perturbations are related to or independent from deviations in the tensor gravitational waves. We show analytical","authors_text":"Eric V. Linder","cross_cats":["gr-qc"],"headline":"","license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"astro-ph.CO","submitted_at":"2014-07-30T20:00:05Z","title":"Are Scalar and Tensor Deviations Related in Modified Gravity?"},"references":{"count":0,"internal_anchors":0,"resolved_work":0,"sample":[],"snapshot_sha256":"258153158e38e3291e3d48162225fcdb2d5a3ed65a07baac614ab91432fd4f57"},"source":{"id":"1407.8184","kind":"arxiv","version":2},"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":"sha256:2a1614d1e299a3c1caca9a88e29a22c255bb7dc8f85a93ad44d105bd9eb967a8","target":"record","created_at":"2026-05-18T02:38:45Z","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":"bb2ed5240c456864007209113cf2dee1ee74eab46e4994872280e7e76402d8d6","cross_cats_sorted":["gr-qc"],"license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"astro-ph.CO","submitted_at":"2014-07-30T20:00:05Z","title_canon_sha256":"f1729cf16739a0d83380e3d2f20b676e08bd238d33d49979f27e79abfc370cbd"},"schema_version":"1.0","source":{"id":"1407.8184","kind":"arxiv","version":2}},"canonical_sha256":"284bd5925f9addb10edd1e075306d18f7010590d8f293e0cedc7d7b355c7e920","receipt":{"algorithm":"ed25519","builder_version":"pith-number-builder-2026-05-17-v1","canonical_sha256":"284bd5925f9addb10edd1e075306d18f7010590d8f293e0cedc7d7b355c7e920","first_computed_at":"2026-05-18T02:38:45.882890Z","key_id":"pith-v1-2026-05","kind":"pith_receipt","last_reissued_at":"2026-05-18T02:38:45.882890Z","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54","receipt_version":"0.3","signature_b64":"HCKVFrMGplfu1NIFDkmJP8zoJCAbkx7XyuNE2jvcEmB51kIRhV0wTOmSrIBRcJ51IZ99jXoG9ZYHoRmXdww7AQ==","signature_status":"signed_v1","signed_at":"2026-05-18T02:38:45.883594Z","signed_message":"canonical_sha256_bytes"},"source_id":"1407.8184","source_kind":"arxiv","source_version":2}}},"equivocations":[],"invalid_events":[],"applied_event_ids":["sha256:2a1614d1e299a3c1caca9a88e29a22c255bb7dc8f85a93ad44d105bd9eb967a8","sha256:0c282efe8b9989c87b2c27f372cb60dfc5ab5d5aca6456463b0079bc7e862fe3"],"state_sha256":"147dfc2d2290eb4f3a3ceda86038b3e4eea07c81b350dc2356fab33853fab0ae"},"bundle_signature":{"signature_status":"signed_v1","algorithm":"ed25519","key_id":"pith-v1-2026-05","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54","signature_b64":"U8+6uFrbHNcVe3vfOsj2ryw45Ukg/PjJyb3bSAW/yA24lsaebB7Ca25J9O8SWgiUjcR/UUCAVLknPuNHOqwBAA==","signed_message":"bundle_sha256_bytes","signed_at":"2026-06-01T20:10:41.743631Z","bundle_sha256":"02871851208d708336d4a860a8560e8fa668236e29851d81349e043154bf829f"}}