{"bundle_type":"pith_open_graph_bundle","bundle_version":"1.0","pith_number":"pith:2011:YIUBN73UQKB3MT7NVTWGBU4JNJ","short_pith_number":"pith:YIUBN73U","canonical_record":{"source":{"id":"1106.4543","kind":"arxiv","version":2},"metadata":{"license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"astro-ph.CO","submitted_at":"2011-06-22T20:00:00Z","cross_cats_sorted":["gr-qc"],"title_canon_sha256":"2ccf30e994a6ed317816a333bc6be8c13e3f291ba96a8ceabfe12d3ffc319496","abstract_canon_sha256":"51a762f933e23caebb6c569b3e29dee6b8bb789e434e64637b4e3f89c12a55f0"},"schema_version":"1.0"},"canonical_sha256":"c22816ff748283b64fedacec60d3896a4cc8c91937828401c585e81099543c04","source":{"kind":"arxiv","id":"1106.4543","version":2},"source_aliases":[{"alias_kind":"arxiv","alias_value":"1106.4543","created_at":"2026-05-18T04:16:01Z"},{"alias_kind":"arxiv_version","alias_value":"1106.4543v2","created_at":"2026-05-18T04:16:01Z"},{"alias_kind":"doi","alias_value":"10.48550/arxiv.1106.4543","created_at":"2026-05-18T04:16:01Z"},{"alias_kind":"pith_short_12","alias_value":"YIUBN73UQKB3","created_at":"2026-05-18T12:26:47Z"},{"alias_kind":"pith_short_16","alias_value":"YIUBN73UQKB3MT7N","created_at":"2026-05-18T12:26:47Z"},{"alias_kind":"pith_short_8","alias_value":"YIUBN73U","created_at":"2026-05-18T12:26:47Z"}],"events":[{"event_type":"record_created","subject_pith_number":"pith:2011:YIUBN73UQKB3MT7NVTWGBU4JNJ","target":"record","payload":{"canonical_record":{"source":{"id":"1106.4543","kind":"arxiv","version":2},"metadata":{"license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"astro-ph.CO","submitted_at":"2011-06-22T20:00:00Z","cross_cats_sorted":["gr-qc"],"title_canon_sha256":"2ccf30e994a6ed317816a333bc6be8c13e3f291ba96a8ceabfe12d3ffc319496","abstract_canon_sha256":"51a762f933e23caebb6c569b3e29dee6b8bb789e434e64637b4e3f89c12a55f0"},"schema_version":"1.0"},"canonical_sha256":"c22816ff748283b64fedacec60d3896a4cc8c91937828401c585e81099543c04","receipt":{"kind":"pith_receipt","key_id":"pith-v1-2026-05","algorithm":"ed25519","signed_at":"2026-05-18T04:16:01.397489Z","signature_b64":"DCKQ1vcCndvOZiW4U5g6KwWiLxQ1XuU7rF0A8i1cR9mPECCEbwJZe8pBJQjttnYwmf7dQ6w71MmxHIpSFhalAw==","signed_message":"canonical_sha256_bytes","builder_version":"pith-number-builder-2026-05-17-v1","receipt_version":"0.3","canonical_sha256":"c22816ff748283b64fedacec60d3896a4cc8c91937828401c585e81099543c04","last_reissued_at":"2026-05-18T04:16:01.396964Z","signature_status":"signed_v1","first_computed_at":"2026-05-18T04:16:01.396964Z","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54"},"source_kind":"arxiv","source_id":"1106.4543","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":"2026-05-18T04:16:01Z","supersedes":[],"prev_event":null,"signature":{"signature_status":"signed_v1","algorithm":"ed25519","key_id":"pith-v1-2026-05","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54","signature_b64":"pguNSKQDF2WUTBgNUjjfJfhSjjQBDl2TZTQWztkdGvkY4RwBs/UpmD7DaSNyLEtDq5l78bRsjWLj5rffo9UVAg==","signed_message":"open_graph_event_sha256_bytes","signed_at":"2026-05-23T16:44:35.457274Z"},"content_sha256":"6be26c100c3208e189b4ee0c9087ffbb7939109e60a90a98dfb5827c56cf243e","schema_version":"1.0","event_id":"sha256:6be26c100c3208e189b4ee0c9087ffbb7939109e60a90a98dfb5827c56cf243e"},{"event_type":"graph_snapshot","subject_pith_number":"pith:2011:YIUBN73UQKB3MT7NVTWGBU4JNJ","target":"graph","payload":{"graph_snapshot":{"paper":{"title":"Testing gravity with CAMB and CosmoMC","license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","headline":"","cross_cats":["gr-qc"],"primary_cat":"astro-ph.CO","authors_text":"Alireza Hojjati, Gong-Bo Zhao, Levon Pogosian","submitted_at":"2011-06-22T20:00:00Z","abstract_excerpt":"We introduce a patch to the commonly used public codes CAMB and CosmoMC that allows the user to implement a general modification of the equations describing the growth of cosmological perturbations, while preserving the covariant conservation of the energy-momentum. This patch replaces the previously publicly released code MGCAMB, while also extending it in several ways. The new version removes the limitation of late-time-only modifications to the perturbed Einstein equations, and includes several parametrization introduced in the literature. To demonstrate the use of the patch, we obtain join"},"claims":{"count":0,"items":[],"snapshot_sha256":"258153158e38e3291e3d48162225fcdb2d5a3ed65a07baac614ab91432fd4f57"},"source":{"id":"1106.4543","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":"2026-05-18T04:16:01Z","supersedes":[],"prev_event":null,"signature":{"signature_status":"signed_v1","algorithm":"ed25519","key_id":"pith-v1-2026-05","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54","signature_b64":"QposoisGgpboRY4vP0zIC4LHViFCjHrxoMJ6i1yqdItFBVxTtSHAZ9a5/NaD7X1yKEiXY81dE5jHlAByhgwzAQ==","signed_message":"open_graph_event_sha256_bytes","signed_at":"2026-05-23T16:44:35.457713Z"},"content_sha256":"331cbf33180044d1c932fd5179e81a62d2d7848d61f93cf6c485e8e210390541","schema_version":"1.0","event_id":"sha256:331cbf33180044d1c932fd5179e81a62d2d7848d61f93cf6c485e8e210390541"}],"timestamp_proofs":[],"mirror_hints":[{"mirror_type":"https","name":"Pith Resolver","base_url":"https://pith.science","bundle_url":"https://pith.science/pith/YIUBN73UQKB3MT7NVTWGBU4JNJ/bundle.json","state_url":"https://pith.science/pith/YIUBN73UQKB3MT7NVTWGBU4JNJ/state.json","well_known_bundle_url":"https://pith.science/.well-known/pith/YIUBN73UQKB3MT7NVTWGBU4JNJ/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":"2026-05-23T16:44:35Z","links":{"resolver":"https://pith.science/pith/YIUBN73UQKB3MT7NVTWGBU4JNJ","bundle":"https://pith.science/pith/YIUBN73UQKB3MT7NVTWGBU4JNJ/bundle.json","state":"https://pith.science/pith/YIUBN73UQKB3MT7NVTWGBU4JNJ/state.json","well_known_bundle":"https://pith.science/.well-known/pith/YIUBN73UQKB3MT7NVTWGBU4JNJ/bundle.json"},"state":{"state_type":"pith_open_graph_state","state_version":"1.0","pith_number":"pith:2011:YIUBN73UQKB3MT7NVTWGBU4JNJ","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":"51a762f933e23caebb6c569b3e29dee6b8bb789e434e64637b4e3f89c12a55f0","cross_cats_sorted":["gr-qc"],"license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"astro-ph.CO","submitted_at":"2011-06-22T20:00:00Z","title_canon_sha256":"2ccf30e994a6ed317816a333bc6be8c13e3f291ba96a8ceabfe12d3ffc319496"},"schema_version":"1.0","source":{"id":"1106.4543","kind":"arxiv","version":2}},"source_aliases":[{"alias_kind":"arxiv","alias_value":"1106.4543","created_at":"2026-05-18T04:16:01Z"},{"alias_kind":"arxiv_version","alias_value":"1106.4543v2","created_at":"2026-05-18T04:16:01Z"},{"alias_kind":"doi","alias_value":"10.48550/arxiv.1106.4543","created_at":"2026-05-18T04:16:01Z"},{"alias_kind":"pith_short_12","alias_value":"YIUBN73UQKB3","created_at":"2026-05-18T12:26:47Z"},{"alias_kind":"pith_short_16","alias_value":"YIUBN73UQKB3MT7N","created_at":"2026-05-18T12:26:47Z"},{"alias_kind":"pith_short_8","alias_value":"YIUBN73U","created_at":"2026-05-18T12:26:47Z"}],"graph_snapshots":[{"event_id":"sha256:331cbf33180044d1c932fd5179e81a62d2d7848d61f93cf6c485e8e210390541","target":"graph","created_at":"2026-05-18T04:16:01Z","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 introduce a patch to the commonly used public codes CAMB and CosmoMC that allows the user to implement a general modification of the equations describing the growth of cosmological perturbations, while preserving the covariant conservation of the energy-momentum. This patch replaces the previously publicly released code MGCAMB, while also extending it in several ways. The new version removes the limitation of late-time-only modifications to the perturbed Einstein equations, and includes several parametrization introduced in the literature. To demonstrate the use of the patch, we obtain join","authors_text":"Alireza Hojjati, Gong-Bo Zhao, Levon Pogosian","cross_cats":["gr-qc"],"headline":"","license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"astro-ph.CO","submitted_at":"2011-06-22T20:00:00Z","title":"Testing gravity with CAMB and CosmoMC"},"references":{"count":0,"internal_anchors":0,"resolved_work":0,"sample":[],"snapshot_sha256":"258153158e38e3291e3d48162225fcdb2d5a3ed65a07baac614ab91432fd4f57"},"source":{"id":"1106.4543","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":"sha256:6be26c100c3208e189b4ee0c9087ffbb7939109e60a90a98dfb5827c56cf243e","target":"record","created_at":"2026-05-18T04:16:01Z","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":"51a762f933e23caebb6c569b3e29dee6b8bb789e434e64637b4e3f89c12a55f0","cross_cats_sorted":["gr-qc"],"license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"astro-ph.CO","submitted_at":"2011-06-22T20:00:00Z","title_canon_sha256":"2ccf30e994a6ed317816a333bc6be8c13e3f291ba96a8ceabfe12d3ffc319496"},"schema_version":"1.0","source":{"id":"1106.4543","kind":"arxiv","version":2}},"canonical_sha256":"c22816ff748283b64fedacec60d3896a4cc8c91937828401c585e81099543c04","receipt":{"algorithm":"ed25519","builder_version":"pith-number-builder-2026-05-17-v1","canonical_sha256":"c22816ff748283b64fedacec60d3896a4cc8c91937828401c585e81099543c04","first_computed_at":"2026-05-18T04:16:01.396964Z","key_id":"pith-v1-2026-05","kind":"pith_receipt","last_reissued_at":"2026-05-18T04:16:01.396964Z","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54","receipt_version":"0.3","signature_b64":"DCKQ1vcCndvOZiW4U5g6KwWiLxQ1XuU7rF0A8i1cR9mPECCEbwJZe8pBJQjttnYwmf7dQ6w71MmxHIpSFhalAw==","signature_status":"signed_v1","signed_at":"2026-05-18T04:16:01.397489Z","signed_message":"canonical_sha256_bytes"},"source_id":"1106.4543","source_kind":"arxiv","source_version":2}}},"equivocations":[],"invalid_events":[],"applied_event_ids":["sha256:6be26c100c3208e189b4ee0c9087ffbb7939109e60a90a98dfb5827c56cf243e","sha256:331cbf33180044d1c932fd5179e81a62d2d7848d61f93cf6c485e8e210390541"],"state_sha256":"0b6d814581b2465edf9e5c46e8ef33c38d0f907e7792af8f3546fd550df33dd1"},"bundle_signature":{"signature_status":"signed_v1","algorithm":"ed25519","key_id":"pith-v1-2026-05","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54","signature_b64":"JbINf1vxMq3HQEERqEGGA4DuO7Jsv56XTlMqSwRZm1cu9W3H0UWGCXhA06uO56N4VK/Zf8ioYcj04Y8wr35MBQ==","signed_message":"bundle_sha256_bytes","signed_at":"2026-05-23T16:44:35.461019Z","bundle_sha256":"9d03769cc55b2725a4f760e8b2cc66b2110a31dea8404d14ce8f43e9d8694832"}}