{"bundle_type":"pith_open_graph_bundle","bundle_version":"1.0","pith_number":"pith:2012:VBIB36EGRJUZJ2HTWWG4YFW7J3","short_pith_number":"pith:VBIB36EG","canonical_record":{"source":{"id":"1205.3165","kind":"arxiv","version":2},"metadata":{"license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"astro-ph.CO","submitted_at":"2012-05-14T20:00:03Z","cross_cats_sorted":[],"title_canon_sha256":"7dc053e11964b54e555039d3137b98bbf76e66813216bc1d6bf9d14f43b5447a","abstract_canon_sha256":"a6c5a74f0badbf2a769e5201f252c5a707e3f460d8974250a415a9970043bb43"},"schema_version":"1.0"},"canonical_sha256":"a8501df8868a6994e8f3b58dcc16df4ec785b784bd743be2afb2d785d1b589a5","source":{"kind":"arxiv","id":"1205.3165","version":2},"source_aliases":[{"alias_kind":"arxiv","alias_value":"1205.3165","created_at":"2026-05-18T01:21:45Z"},{"alias_kind":"arxiv_version","alias_value":"1205.3165v2","created_at":"2026-05-18T01:21:45Z"},{"alias_kind":"doi","alias_value":"10.48550/arxiv.1205.3165","created_at":"2026-05-18T01:21:45Z"},{"alias_kind":"pith_short_12","alias_value":"VBIB36EGRJUZ","created_at":"2026-05-18T12:27:25Z"},{"alias_kind":"pith_short_16","alias_value":"VBIB36EGRJUZJ2HT","created_at":"2026-05-18T12:27:25Z"},{"alias_kind":"pith_short_8","alias_value":"VBIB36EG","created_at":"2026-05-18T12:27:25Z"}],"events":[{"event_type":"record_created","subject_pith_number":"pith:2012:VBIB36EGRJUZJ2HTWWG4YFW7J3","target":"record","payload":{"canonical_record":{"source":{"id":"1205.3165","kind":"arxiv","version":2},"metadata":{"license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"astro-ph.CO","submitted_at":"2012-05-14T20:00:03Z","cross_cats_sorted":[],"title_canon_sha256":"7dc053e11964b54e555039d3137b98bbf76e66813216bc1d6bf9d14f43b5447a","abstract_canon_sha256":"a6c5a74f0badbf2a769e5201f252c5a707e3f460d8974250a415a9970043bb43"},"schema_version":"1.0"},"canonical_sha256":"a8501df8868a6994e8f3b58dcc16df4ec785b784bd743be2afb2d785d1b589a5","receipt":{"kind":"pith_receipt","key_id":"pith-v1-2026-05","algorithm":"ed25519","signed_at":"2026-05-18T01:21:45.498409Z","signature_b64":"ee/qZ+XBPHJSjGtNVpYDfFLAG2imHwJnHVHVst8F2dzMIJFUv10MAeZw8rNgoyyrVxy6IeZrWBm8Nt4v1XSICQ==","signed_message":"canonical_sha256_bytes","builder_version":"pith-number-builder-2026-05-17-v1","receipt_version":"0.3","canonical_sha256":"a8501df8868a6994e8f3b58dcc16df4ec785b784bd743be2afb2d785d1b589a5","last_reissued_at":"2026-05-18T01:21:45.497791Z","signature_status":"signed_v1","first_computed_at":"2026-05-18T01:21:45.497791Z","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54"},"source_kind":"arxiv","source_id":"1205.3165","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":"2026-05-18T01:21:45Z","supersedes":[],"prev_event":null,"signature":{"signature_status":"signed_v1","algorithm":"ed25519","key_id":"pith-v1-2026-05","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54","signature_b64":"Ndg9UUTCRFuFbR3U0JTWHio605GtxwAJBrguutAD9IuKhpleGBMXk7PXcLGBln8WxvzTXWaLTo0b8biUzmj8Dw==","signed_message":"open_graph_event_sha256_bytes","signed_at":"2026-05-25T20:20:17.548960Z"},"content_sha256":"94fa8c1d429309980267f6a3697556cd4aae111ab5f974bf476c03b80a72fdaf","schema_version":"1.0","event_id":"sha256:94fa8c1d429309980267f6a3697556cd4aae111ab5f974bf476c03b80a72fdaf"},{"event_type":"graph_snapshot","subject_pith_number":"pith:2012:VBIB36EGRJUZJ2HTWWG4YFW7J3","target":"graph","payload":{"graph_snapshot":{"paper":{"title":"Can we really measure fnl from the galaxy power spectrum?","license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","headline":"","cross_cats":[],"primary_cat":"astro-ph.CO","authors_text":"Cristiano Porciani, Nina Roth","submitted_at":"2012-05-14T20:00:03Z","abstract_excerpt":"The scale-dependent galaxy bias generated by primordial non-Gaussianity (PNG) can be used to detect and constrain deviations from standard single-field inflation. The strongest signal is expected in the local model for PNG, where the amplitude of non-Gaussianity can be expressed by a set of parameters (fnl, gnl, ...). Current observational constraints from galaxy clustering on fnl and gnl assume that the others PNG parameters are vanishing. Using two sets of cosmological N-body simulations where both fnl and gnl are non-zero, we show that this strong assumption generally leads to biased estima"},"claims":{"count":0,"items":[],"snapshot_sha256":"258153158e38e3291e3d48162225fcdb2d5a3ed65a07baac614ab91432fd4f57"},"source":{"id":"1205.3165","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":"2026-05-18T01:21:45Z","supersedes":[],"prev_event":null,"signature":{"signature_status":"signed_v1","algorithm":"ed25519","key_id":"pith-v1-2026-05","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54","signature_b64":"LUuG3fmIBSPewYzhw//iXEslaQLSVIWnhTl1WcgQ3qgUcB/0JIRHRnxYexNMJp/+K23EkvRmsnD5HIi9fRVTAw==","signed_message":"open_graph_event_sha256_bytes","signed_at":"2026-05-25T20:20:17.549609Z"},"content_sha256":"474c18be6f737b775d8baa175db73cf478ddaf9217bb2da03691f3f89e78c402","schema_version":"1.0","event_id":"sha256:474c18be6f737b775d8baa175db73cf478ddaf9217bb2da03691f3f89e78c402"}],"timestamp_proofs":[],"mirror_hints":[{"mirror_type":"https","name":"Pith Resolver","base_url":"https://pith.science","bundle_url":"https://pith.science/pith/VBIB36EGRJUZJ2HTWWG4YFW7J3/bundle.json","state_url":"https://pith.science/pith/VBIB36EGRJUZJ2HTWWG4YFW7J3/state.json","well_known_bundle_url":"https://pith.science/.well-known/pith/VBIB36EGRJUZJ2HTWWG4YFW7J3/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":"2026-05-25T20:20:17Z","links":{"resolver":"https://pith.science/pith/VBIB36EGRJUZJ2HTWWG4YFW7J3","bundle":"https://pith.science/pith/VBIB36EGRJUZJ2HTWWG4YFW7J3/bundle.json","state":"https://pith.science/pith/VBIB36EGRJUZJ2HTWWG4YFW7J3/state.json","well_known_bundle":"https://pith.science/.well-known/pith/VBIB36EGRJUZJ2HTWWG4YFW7J3/bundle.json"},"state":{"state_type":"pith_open_graph_state","state_version":"1.0","pith_number":"pith:2012:VBIB36EGRJUZJ2HTWWG4YFW7J3","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":"a6c5a74f0badbf2a769e5201f252c5a707e3f460d8974250a415a9970043bb43","cross_cats_sorted":[],"license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"astro-ph.CO","submitted_at":"2012-05-14T20:00:03Z","title_canon_sha256":"7dc053e11964b54e555039d3137b98bbf76e66813216bc1d6bf9d14f43b5447a"},"schema_version":"1.0","source":{"id":"1205.3165","kind":"arxiv","version":2}},"source_aliases":[{"alias_kind":"arxiv","alias_value":"1205.3165","created_at":"2026-05-18T01:21:45Z"},{"alias_kind":"arxiv_version","alias_value":"1205.3165v2","created_at":"2026-05-18T01:21:45Z"},{"alias_kind":"doi","alias_value":"10.48550/arxiv.1205.3165","created_at":"2026-05-18T01:21:45Z"},{"alias_kind":"pith_short_12","alias_value":"VBIB36EGRJUZ","created_at":"2026-05-18T12:27:25Z"},{"alias_kind":"pith_short_16","alias_value":"VBIB36EGRJUZJ2HT","created_at":"2026-05-18T12:27:25Z"},{"alias_kind":"pith_short_8","alias_value":"VBIB36EG","created_at":"2026-05-18T12:27:25Z"}],"graph_snapshots":[{"event_id":"sha256:474c18be6f737b775d8baa175db73cf478ddaf9217bb2da03691f3f89e78c402","target":"graph","created_at":"2026-05-18T01:21:45Z","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":"The scale-dependent galaxy bias generated by primordial non-Gaussianity (PNG) can be used to detect and constrain deviations from standard single-field inflation. The strongest signal is expected in the local model for PNG, where the amplitude of non-Gaussianity can be expressed by a set of parameters (fnl, gnl, ...). Current observational constraints from galaxy clustering on fnl and gnl assume that the others PNG parameters are vanishing. Using two sets of cosmological N-body simulations where both fnl and gnl are non-zero, we show that this strong assumption generally leads to biased estima","authors_text":"Cristiano Porciani, Nina Roth","cross_cats":[],"headline":"","license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"astro-ph.CO","submitted_at":"2012-05-14T20:00:03Z","title":"Can we really measure fnl from the galaxy power spectrum?"},"references":{"count":0,"internal_anchors":0,"resolved_work":0,"sample":[],"snapshot_sha256":"258153158e38e3291e3d48162225fcdb2d5a3ed65a07baac614ab91432fd4f57"},"source":{"id":"1205.3165","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":"sha256:94fa8c1d429309980267f6a3697556cd4aae111ab5f974bf476c03b80a72fdaf","target":"record","created_at":"2026-05-18T01:21:45Z","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":"a6c5a74f0badbf2a769e5201f252c5a707e3f460d8974250a415a9970043bb43","cross_cats_sorted":[],"license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"astro-ph.CO","submitted_at":"2012-05-14T20:00:03Z","title_canon_sha256":"7dc053e11964b54e555039d3137b98bbf76e66813216bc1d6bf9d14f43b5447a"},"schema_version":"1.0","source":{"id":"1205.3165","kind":"arxiv","version":2}},"canonical_sha256":"a8501df8868a6994e8f3b58dcc16df4ec785b784bd743be2afb2d785d1b589a5","receipt":{"algorithm":"ed25519","builder_version":"pith-number-builder-2026-05-17-v1","canonical_sha256":"a8501df8868a6994e8f3b58dcc16df4ec785b784bd743be2afb2d785d1b589a5","first_computed_at":"2026-05-18T01:21:45.497791Z","key_id":"pith-v1-2026-05","kind":"pith_receipt","last_reissued_at":"2026-05-18T01:21:45.497791Z","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54","receipt_version":"0.3","signature_b64":"ee/qZ+XBPHJSjGtNVpYDfFLAG2imHwJnHVHVst8F2dzMIJFUv10MAeZw8rNgoyyrVxy6IeZrWBm8Nt4v1XSICQ==","signature_status":"signed_v1","signed_at":"2026-05-18T01:21:45.498409Z","signed_message":"canonical_sha256_bytes"},"source_id":"1205.3165","source_kind":"arxiv","source_version":2}}},"equivocations":[],"invalid_events":[],"applied_event_ids":["sha256:94fa8c1d429309980267f6a3697556cd4aae111ab5f974bf476c03b80a72fdaf","sha256:474c18be6f737b775d8baa175db73cf478ddaf9217bb2da03691f3f89e78c402"],"state_sha256":"5540d59178ce1883c56e8ff65d48f298659b07f045200d762325b68d65dbb271"},"bundle_signature":{"signature_status":"signed_v1","algorithm":"ed25519","key_id":"pith-v1-2026-05","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54","signature_b64":"rXomL9P6ZkImwGa0auRuqpQLFRqBtj/zRABBW3H03CEnp+xyHKJ3UqJu9HQvCWF/MODpcRWBLUhvcz9LPRapCw==","signed_message":"bundle_sha256_bytes","signed_at":"2026-05-25T20:20:17.552775Z","bundle_sha256":"6d41433cfe4a005e091e1e9a8231d5c363fd443efaec9ff41709fbd67c1ffca9"}}