{"bundle_type":"pith_open_graph_bundle","bundle_version":"1.0","pith_number":"pith:2014:AO5W4WCZS5UNBNCSUBTKVSQBQK","short_pith_number":"pith:AO5W4WCZ","canonical_record":{"source":{"id":"1408.3520","kind":"arxiv","version":1},"metadata":{"license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"astro-ph.CO","submitted_at":"2014-08-15T12:45:09Z","cross_cats_sorted":["gr-qc","hep-ph"],"title_canon_sha256":"df32c6e1227b1c37af3f0ad2efe59f5e51ad805a67c2b671198d14d5ca8d2ba0","abstract_canon_sha256":"394e0f32a26320a691598a7f738d85275a1d795473c1cc1046193b6905df5d65"},"schema_version":"1.0"},"canonical_sha256":"03bb6e58599768d0b452a066aaca018291a3446c5cdd0bb1ab5876971149c24e","source":{"kind":"arxiv","id":"1408.3520","version":1},"source_aliases":[{"alias_kind":"arxiv","alias_value":"1408.3520","created_at":"2026-05-18T01:42:18Z"},{"alias_kind":"arxiv_version","alias_value":"1408.3520v1","created_at":"2026-05-18T01:42:18Z"},{"alias_kind":"doi","alias_value":"10.48550/arxiv.1408.3520","created_at":"2026-05-18T01:42:18Z"},{"alias_kind":"pith_short_12","alias_value":"AO5W4WCZS5UN","created_at":"2026-05-18T12:28:19Z"},{"alias_kind":"pith_short_16","alias_value":"AO5W4WCZS5UNBNCS","created_at":"2026-05-18T12:28:19Z"},{"alias_kind":"pith_short_8","alias_value":"AO5W4WCZ","created_at":"2026-05-18T12:28:19Z"}],"events":[{"event_type":"record_created","subject_pith_number":"pith:2014:AO5W4WCZS5UNBNCSUBTKVSQBQK","target":"record","payload":{"canonical_record":{"source":{"id":"1408.3520","kind":"arxiv","version":1},"metadata":{"license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"astro-ph.CO","submitted_at":"2014-08-15T12:45:09Z","cross_cats_sorted":["gr-qc","hep-ph"],"title_canon_sha256":"df32c6e1227b1c37af3f0ad2efe59f5e51ad805a67c2b671198d14d5ca8d2ba0","abstract_canon_sha256":"394e0f32a26320a691598a7f738d85275a1d795473c1cc1046193b6905df5d65"},"schema_version":"1.0"},"canonical_sha256":"03bb6e58599768d0b452a066aaca018291a3446c5cdd0bb1ab5876971149c24e","receipt":{"kind":"pith_receipt","key_id":"pith-v1-2026-05","algorithm":"ed25519","signed_at":"2026-05-18T01:42:18.651988Z","signature_b64":"wZcV9eUaeYWvMQQY/T35UHrya87F/C6gAD5CUfqhf15LOkjLgr1pJRNrqLnXstP4b60FUMaLLTvs2VpM3nOfCA==","signed_message":"canonical_sha256_bytes","builder_version":"pith-number-builder-2026-05-17-v1","receipt_version":"0.3","canonical_sha256":"03bb6e58599768d0b452a066aaca018291a3446c5cdd0bb1ab5876971149c24e","last_reissued_at":"2026-05-18T01:42:18.651474Z","signature_status":"signed_v1","first_computed_at":"2026-05-18T01:42:18.651474Z","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54"},"source_kind":"arxiv","source_id":"1408.3520","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":"2026-05-18T01:42:18Z","supersedes":[],"prev_event":null,"signature":{"signature_status":"signed_v1","algorithm":"ed25519","key_id":"pith-v1-2026-05","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54","signature_b64":"icCn0kjhocbThZnhhwTBd9MHCU2YZUjDtTxAWG3t+15oW3t2vZLyqObJ75MfHMZqFMysRyFs15y7fkOyngnMDQ==","signed_message":"open_graph_event_sha256_bytes","signed_at":"2026-05-30T14:14:41.396152Z"},"content_sha256":"54ea7002408d528bebe6b487335e00059f3b21dbaac64c14da78fdc20811ddb5","schema_version":"1.0","event_id":"sha256:54ea7002408d528bebe6b487335e00059f3b21dbaac64c14da78fdc20811ddb5"},{"event_type":"graph_snapshot","subject_pith_number":"pith:2014:AO5W4WCZS5UNBNCSUBTKVSQBQK","target":"graph","payload":{"graph_snapshot":{"paper":{"title":"A cosmological exclusion plot: Towards model-independent constraints on modified gravity from current and future growth rate data","license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","headline":"","cross_cats":["gr-qc","hep-ph"],"primary_cat":"astro-ph.CO","authors_text":"Germany), Heidelberg, Italy, ITP, Laura Taddei (Univ. di Parma, Luca Amendola (ITP","submitted_at":"2014-08-15T12:45:09Z","abstract_excerpt":"Most cosmological constraints on modified gravity are obtained assuming that the cosmic evolution was standard $\\Lambda$CDM in the past and that the present matter density and power spectrum normalization are the same as in a $\\Lambda$CDM model. Here we examine how the constraints change when these assumptions are lifted. We focus in particular on the parameter $Y$ (also called $G_{\\mathrm{eff}}$) that quantifies the deviation from the Poisson equation. This parameter can be estimated by comparing with the model-independent growth rate quantity $f\\sigma_{8}(z)$ obtained through redshift distor"},"claims":{"count":0,"items":[],"snapshot_sha256":"258153158e38e3291e3d48162225fcdb2d5a3ed65a07baac614ab91432fd4f57"},"source":{"id":"1408.3520","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":"2026-05-18T01:42:18Z","supersedes":[],"prev_event":null,"signature":{"signature_status":"signed_v1","algorithm":"ed25519","key_id":"pith-v1-2026-05","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54","signature_b64":"JGe61c1fckhv9Zbv+dr4esyKW/zjbHOMVLNv1aTc1IshWex2mMtZC+t4s8DBOCAQkNJUrcCKBJNZG5HlPMJZDw==","signed_message":"open_graph_event_sha256_bytes","signed_at":"2026-05-30T14:14:41.396908Z"},"content_sha256":"c1d5810ea75fcd5bc6167bce5d604b430ed9ef84a975401ca686d89a9587ee1d","schema_version":"1.0","event_id":"sha256:c1d5810ea75fcd5bc6167bce5d604b430ed9ef84a975401ca686d89a9587ee1d"}],"timestamp_proofs":[],"mirror_hints":[{"mirror_type":"https","name":"Pith Resolver","base_url":"https://pith.science","bundle_url":"https://pith.science/pith/AO5W4WCZS5UNBNCSUBTKVSQBQK/bundle.json","state_url":"https://pith.science/pith/AO5W4WCZS5UNBNCSUBTKVSQBQK/state.json","well_known_bundle_url":"https://pith.science/.well-known/pith/AO5W4WCZS5UNBNCSUBTKVSQBQK/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":"2026-05-30T14:14:41Z","links":{"resolver":"https://pith.science/pith/AO5W4WCZS5UNBNCSUBTKVSQBQK","bundle":"https://pith.science/pith/AO5W4WCZS5UNBNCSUBTKVSQBQK/bundle.json","state":"https://pith.science/pith/AO5W4WCZS5UNBNCSUBTKVSQBQK/state.json","well_known_bundle":"https://pith.science/.well-known/pith/AO5W4WCZS5UNBNCSUBTKVSQBQK/bundle.json"},"state":{"state_type":"pith_open_graph_state","state_version":"1.0","pith_number":"pith:2014:AO5W4WCZS5UNBNCSUBTKVSQBQK","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":"394e0f32a26320a691598a7f738d85275a1d795473c1cc1046193b6905df5d65","cross_cats_sorted":["gr-qc","hep-ph"],"license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"astro-ph.CO","submitted_at":"2014-08-15T12:45:09Z","title_canon_sha256":"df32c6e1227b1c37af3f0ad2efe59f5e51ad805a67c2b671198d14d5ca8d2ba0"},"schema_version":"1.0","source":{"id":"1408.3520","kind":"arxiv","version":1}},"source_aliases":[{"alias_kind":"arxiv","alias_value":"1408.3520","created_at":"2026-05-18T01:42:18Z"},{"alias_kind":"arxiv_version","alias_value":"1408.3520v1","created_at":"2026-05-18T01:42:18Z"},{"alias_kind":"doi","alias_value":"10.48550/arxiv.1408.3520","created_at":"2026-05-18T01:42:18Z"},{"alias_kind":"pith_short_12","alias_value":"AO5W4WCZS5UN","created_at":"2026-05-18T12:28:19Z"},{"alias_kind":"pith_short_16","alias_value":"AO5W4WCZS5UNBNCS","created_at":"2026-05-18T12:28:19Z"},{"alias_kind":"pith_short_8","alias_value":"AO5W4WCZ","created_at":"2026-05-18T12:28:19Z"}],"graph_snapshots":[{"event_id":"sha256:c1d5810ea75fcd5bc6167bce5d604b430ed9ef84a975401ca686d89a9587ee1d","target":"graph","created_at":"2026-05-18T01:42:18Z","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":"Most cosmological constraints on modified gravity are obtained assuming that the cosmic evolution was standard $\\Lambda$CDM in the past and that the present matter density and power spectrum normalization are the same as in a $\\Lambda$CDM model. Here we examine how the constraints change when these assumptions are lifted. We focus in particular on the parameter $Y$ (also called $G_{\\mathrm{eff}}$) that quantifies the deviation from the Poisson equation. This parameter can be estimated by comparing with the model-independent growth rate quantity $f\\sigma_{8}(z)$ obtained through redshift distor","authors_text":"Germany), Heidelberg, Italy, ITP, Laura Taddei (Univ. di Parma, Luca Amendola (ITP","cross_cats":["gr-qc","hep-ph"],"headline":"","license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"astro-ph.CO","submitted_at":"2014-08-15T12:45:09Z","title":"A cosmological exclusion plot: Towards model-independent constraints on modified gravity from current and future growth rate data"},"references":{"count":0,"internal_anchors":0,"resolved_work":0,"sample":[],"snapshot_sha256":"258153158e38e3291e3d48162225fcdb2d5a3ed65a07baac614ab91432fd4f57"},"source":{"id":"1408.3520","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":"sha256:54ea7002408d528bebe6b487335e00059f3b21dbaac64c14da78fdc20811ddb5","target":"record","created_at":"2026-05-18T01:42:18Z","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":"394e0f32a26320a691598a7f738d85275a1d795473c1cc1046193b6905df5d65","cross_cats_sorted":["gr-qc","hep-ph"],"license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"astro-ph.CO","submitted_at":"2014-08-15T12:45:09Z","title_canon_sha256":"df32c6e1227b1c37af3f0ad2efe59f5e51ad805a67c2b671198d14d5ca8d2ba0"},"schema_version":"1.0","source":{"id":"1408.3520","kind":"arxiv","version":1}},"canonical_sha256":"03bb6e58599768d0b452a066aaca018291a3446c5cdd0bb1ab5876971149c24e","receipt":{"algorithm":"ed25519","builder_version":"pith-number-builder-2026-05-17-v1","canonical_sha256":"03bb6e58599768d0b452a066aaca018291a3446c5cdd0bb1ab5876971149c24e","first_computed_at":"2026-05-18T01:42:18.651474Z","key_id":"pith-v1-2026-05","kind":"pith_receipt","last_reissued_at":"2026-05-18T01:42:18.651474Z","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54","receipt_version":"0.3","signature_b64":"wZcV9eUaeYWvMQQY/T35UHrya87F/C6gAD5CUfqhf15LOkjLgr1pJRNrqLnXstP4b60FUMaLLTvs2VpM3nOfCA==","signature_status":"signed_v1","signed_at":"2026-05-18T01:42:18.651988Z","signed_message":"canonical_sha256_bytes"},"source_id":"1408.3520","source_kind":"arxiv","source_version":1}}},"equivocations":[],"invalid_events":[],"applied_event_ids":["sha256:54ea7002408d528bebe6b487335e00059f3b21dbaac64c14da78fdc20811ddb5","sha256:c1d5810ea75fcd5bc6167bce5d604b430ed9ef84a975401ca686d89a9587ee1d"],"state_sha256":"f370827fcc10c0950a2f2c447666ccc93bedb1a38b46af87edfcd578310eae9f"},"bundle_signature":{"signature_status":"signed_v1","algorithm":"ed25519","key_id":"pith-v1-2026-05","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54","signature_b64":"Yfxdoc1B6KeKwh8urC0QSAeM5vU7kTfEm+6QmklmgOhqOsm7gMoNytPDTzuGzvar2IcJVGmS0DG/ZB/0nmEGDg==","signed_message":"bundle_sha256_bytes","signed_at":"2026-05-30T14:14:41.400781Z","bundle_sha256":"40a008e5f6679bf71a650e43eaecd963f7c80cb6dfca2ba5fa54e88a11548176"}}