{"bundle_type":"pith_open_graph_bundle","bundle_version":"1.0","pith_number":"pith:2011:EBIXEGAFJRKIDXIFICR6WDBIMZ","short_pith_number":"pith:EBIXEGAF","canonical_record":{"source":{"id":"1101.2453","kind":"arxiv","version":1},"metadata":{"license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"astro-ph.CO","submitted_at":"2011-01-12T21:06:40Z","cross_cats_sorted":[],"title_canon_sha256":"d036489d955afb0968dda6fd57c929642bd9f90e797a1441a4986db10b1a7b59","abstract_canon_sha256":"8483d59aca482311a2d08a341471850a052fa8ef0395727cba8b9e7e2b569754"},"schema_version":"1.0"},"canonical_sha256":"20517218054c5481dd0540a3eb0c28664ac44b4b3d47896c9e151b234882d2b1","source":{"kind":"arxiv","id":"1101.2453","version":1},"source_aliases":[{"alias_kind":"arxiv","alias_value":"1101.2453","created_at":"2026-05-18T02:03:40Z"},{"alias_kind":"arxiv_version","alias_value":"1101.2453v1","created_at":"2026-05-18T02:03:40Z"},{"alias_kind":"doi","alias_value":"10.48550/arxiv.1101.2453","created_at":"2026-05-18T02:03:40Z"},{"alias_kind":"pith_short_12","alias_value":"EBIXEGAFJRKI","created_at":"2026-05-18T12:26:26Z"},{"alias_kind":"pith_short_16","alias_value":"EBIXEGAFJRKIDXIF","created_at":"2026-05-18T12:26:26Z"},{"alias_kind":"pith_short_8","alias_value":"EBIXEGAF","created_at":"2026-05-18T12:26:26Z"}],"events":[{"event_type":"record_created","subject_pith_number":"pith:2011:EBIXEGAFJRKIDXIFICR6WDBIMZ","target":"record","payload":{"canonical_record":{"source":{"id":"1101.2453","kind":"arxiv","version":1},"metadata":{"license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"astro-ph.CO","submitted_at":"2011-01-12T21:06:40Z","cross_cats_sorted":[],"title_canon_sha256":"d036489d955afb0968dda6fd57c929642bd9f90e797a1441a4986db10b1a7b59","abstract_canon_sha256":"8483d59aca482311a2d08a341471850a052fa8ef0395727cba8b9e7e2b569754"},"schema_version":"1.0"},"canonical_sha256":"20517218054c5481dd0540a3eb0c28664ac44b4b3d47896c9e151b234882d2b1","receipt":{"kind":"pith_receipt","key_id":"pith-v1-2026-05","algorithm":"ed25519","signed_at":"2026-05-18T02:03:40.703960Z","signature_b64":"Y/P8fAVU62CRZonB5w8TJFNM2YfClJkpkYSfb8OUEl/oxoW6VyqjEeLz8lhwYRgwrpfeM+Rr9Oxgd5APGUlCBQ==","signed_message":"canonical_sha256_bytes","builder_version":"pith-number-builder-2026-05-17-v1","receipt_version":"0.3","canonical_sha256":"20517218054c5481dd0540a3eb0c28664ac44b4b3d47896c9e151b234882d2b1","last_reissued_at":"2026-05-18T02:03:40.703225Z","signature_status":"signed_v1","first_computed_at":"2026-05-18T02:03:40.703225Z","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54"},"source_kind":"arxiv","source_id":"1101.2453","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":"2026-05-18T02:03:40Z","supersedes":[],"prev_event":null,"signature":{"signature_status":"signed_v1","algorithm":"ed25519","key_id":"pith-v1-2026-05","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54","signature_b64":"xbkoc88h3j9COAL5WMLj5v3sJH8dfauI5ODX0ZCB+bzDgnXDjIAezs6Bc19ss9ShBHWH2qHQm3v6KDcZ+GKeAg==","signed_message":"open_graph_event_sha256_bytes","signed_at":"2026-05-30T05:52:46.923434Z"},"content_sha256":"8bd5cc57d83151f26f602b11955c4b219480eec48e1a1848cf3663f3051f5476","schema_version":"1.0","event_id":"sha256:8bd5cc57d83151f26f602b11955c4b219480eec48e1a1848cf3663f3051f5476"},{"event_type":"graph_snapshot","subject_pith_number":"pith:2011:EBIXEGAFJRKIDXIFICR6WDBIMZ","target":"graph","payload":{"graph_snapshot":{"paper":{"title":"Growth factor and galaxy bias from future redshift surveys: a study on parametrizations","license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","headline":"","cross_cats":[],"primary_cat":"astro-ph.CO","authors_text":"Cinzia Di Porto, Enzo Branchini, Luca Amendola","submitted_at":"2011-01-12T21:06:40Z","abstract_excerpt":"Many experiments in the near future will test dark energy through its effects on the linear growth of matter perturbations. In this paper we discuss the constraints that future large-scale redshift surveys can put on three different parameterizations of the linear growth factor and how these constraints will help ruling out different classes of dark energy and modified gravity models. We show that a scale-independent bias can be estimated to a few percent per redshift slice by combining redshift distortions with power spectrum amplitude, without the need of an external estimation. We find that"},"claims":{"count":0,"items":[],"snapshot_sha256":"258153158e38e3291e3d48162225fcdb2d5a3ed65a07baac614ab91432fd4f57"},"source":{"id":"1101.2453","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":"2026-05-18T02:03:40Z","supersedes":[],"prev_event":null,"signature":{"signature_status":"signed_v1","algorithm":"ed25519","key_id":"pith-v1-2026-05","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54","signature_b64":"EdEzY8WIxWjUHncrWBVOaXutm9cgtneyV27ciCYGtzs45lNpWbVoezRuFXlpxDdtZLeHAjaVCBA1OrME8jt2DA==","signed_message":"open_graph_event_sha256_bytes","signed_at":"2026-05-30T05:52:46.924074Z"},"content_sha256":"79bb17d064419052a33f5d15cb30862b0c8e684befad2c992ba1d4b109780fa2","schema_version":"1.0","event_id":"sha256:79bb17d064419052a33f5d15cb30862b0c8e684befad2c992ba1d4b109780fa2"}],"timestamp_proofs":[],"mirror_hints":[{"mirror_type":"https","name":"Pith Resolver","base_url":"https://pith.science","bundle_url":"https://pith.science/pith/EBIXEGAFJRKIDXIFICR6WDBIMZ/bundle.json","state_url":"https://pith.science/pith/EBIXEGAFJRKIDXIFICR6WDBIMZ/state.json","well_known_bundle_url":"https://pith.science/.well-known/pith/EBIXEGAFJRKIDXIFICR6WDBIMZ/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":"2026-05-30T05:52:46Z","links":{"resolver":"https://pith.science/pith/EBIXEGAFJRKIDXIFICR6WDBIMZ","bundle":"https://pith.science/pith/EBIXEGAFJRKIDXIFICR6WDBIMZ/bundle.json","state":"https://pith.science/pith/EBIXEGAFJRKIDXIFICR6WDBIMZ/state.json","well_known_bundle":"https://pith.science/.well-known/pith/EBIXEGAFJRKIDXIFICR6WDBIMZ/bundle.json"},"state":{"state_type":"pith_open_graph_state","state_version":"1.0","pith_number":"pith:2011:EBIXEGAFJRKIDXIFICR6WDBIMZ","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":"8483d59aca482311a2d08a341471850a052fa8ef0395727cba8b9e7e2b569754","cross_cats_sorted":[],"license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"astro-ph.CO","submitted_at":"2011-01-12T21:06:40Z","title_canon_sha256":"d036489d955afb0968dda6fd57c929642bd9f90e797a1441a4986db10b1a7b59"},"schema_version":"1.0","source":{"id":"1101.2453","kind":"arxiv","version":1}},"source_aliases":[{"alias_kind":"arxiv","alias_value":"1101.2453","created_at":"2026-05-18T02:03:40Z"},{"alias_kind":"arxiv_version","alias_value":"1101.2453v1","created_at":"2026-05-18T02:03:40Z"},{"alias_kind":"doi","alias_value":"10.48550/arxiv.1101.2453","created_at":"2026-05-18T02:03:40Z"},{"alias_kind":"pith_short_12","alias_value":"EBIXEGAFJRKI","created_at":"2026-05-18T12:26:26Z"},{"alias_kind":"pith_short_16","alias_value":"EBIXEGAFJRKIDXIF","created_at":"2026-05-18T12:26:26Z"},{"alias_kind":"pith_short_8","alias_value":"EBIXEGAF","created_at":"2026-05-18T12:26:26Z"}],"graph_snapshots":[{"event_id":"sha256:79bb17d064419052a33f5d15cb30862b0c8e684befad2c992ba1d4b109780fa2","target":"graph","created_at":"2026-05-18T02:03:40Z","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":"Many experiments in the near future will test dark energy through its effects on the linear growth of matter perturbations. In this paper we discuss the constraints that future large-scale redshift surveys can put on three different parameterizations of the linear growth factor and how these constraints will help ruling out different classes of dark energy and modified gravity models. We show that a scale-independent bias can be estimated to a few percent per redshift slice by combining redshift distortions with power spectrum amplitude, without the need of an external estimation. We find that","authors_text":"Cinzia Di Porto, Enzo Branchini, Luca Amendola","cross_cats":[],"headline":"","license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"astro-ph.CO","submitted_at":"2011-01-12T21:06:40Z","title":"Growth factor and galaxy bias from future redshift surveys: a study on parametrizations"},"references":{"count":0,"internal_anchors":0,"resolved_work":0,"sample":[],"snapshot_sha256":"258153158e38e3291e3d48162225fcdb2d5a3ed65a07baac614ab91432fd4f57"},"source":{"id":"1101.2453","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":"sha256:8bd5cc57d83151f26f602b11955c4b219480eec48e1a1848cf3663f3051f5476","target":"record","created_at":"2026-05-18T02:03:40Z","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":"8483d59aca482311a2d08a341471850a052fa8ef0395727cba8b9e7e2b569754","cross_cats_sorted":[],"license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"astro-ph.CO","submitted_at":"2011-01-12T21:06:40Z","title_canon_sha256":"d036489d955afb0968dda6fd57c929642bd9f90e797a1441a4986db10b1a7b59"},"schema_version":"1.0","source":{"id":"1101.2453","kind":"arxiv","version":1}},"canonical_sha256":"20517218054c5481dd0540a3eb0c28664ac44b4b3d47896c9e151b234882d2b1","receipt":{"algorithm":"ed25519","builder_version":"pith-number-builder-2026-05-17-v1","canonical_sha256":"20517218054c5481dd0540a3eb0c28664ac44b4b3d47896c9e151b234882d2b1","first_computed_at":"2026-05-18T02:03:40.703225Z","key_id":"pith-v1-2026-05","kind":"pith_receipt","last_reissued_at":"2026-05-18T02:03:40.703225Z","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54","receipt_version":"0.3","signature_b64":"Y/P8fAVU62CRZonB5w8TJFNM2YfClJkpkYSfb8OUEl/oxoW6VyqjEeLz8lhwYRgwrpfeM+Rr9Oxgd5APGUlCBQ==","signature_status":"signed_v1","signed_at":"2026-05-18T02:03:40.703960Z","signed_message":"canonical_sha256_bytes"},"source_id":"1101.2453","source_kind":"arxiv","source_version":1}}},"equivocations":[],"invalid_events":[],"applied_event_ids":["sha256:8bd5cc57d83151f26f602b11955c4b219480eec48e1a1848cf3663f3051f5476","sha256:79bb17d064419052a33f5d15cb30862b0c8e684befad2c992ba1d4b109780fa2"],"state_sha256":"9d0f4c7fbd6274b2d3014f6ee5eae32afe384ae269c564e190bf2740963ffe2b"},"bundle_signature":{"signature_status":"signed_v1","algorithm":"ed25519","key_id":"pith-v1-2026-05","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54","signature_b64":"tLcelFMEE8InJL2gLTERAA0Ai24+VAc4bohdl46HxKqauFNSFxieHu1NvwmU/PgRLMoyHc+Vp/oXn/5yS1QkAg==","signed_message":"bundle_sha256_bytes","signed_at":"2026-05-30T05:52:46.928076Z","bundle_sha256":"37ccc1e9640f660bb6c45febf24039ccc497471e1f490822ac8659d2ad68917c"}}