{"bundle_type":"pith_open_graph_bundle","bundle_version":"1.0","pith_number":"pith:2022:6VPAXDQVPDIY5VWRAD4Z6USXBA","short_pith_number":"pith:6VPAXDQV","canonical_record":{"source":{"id":"2208.10560","kind":"arxiv","version":2},"metadata":{"license":"http://creativecommons.org/licenses/by-nc-nd/4.0/","primary_cat":"astro-ph.CO","submitted_at":"2022-08-22T19:32:34Z","cross_cats_sorted":[],"title_canon_sha256":"26aa3979a1d3cc5a1abffa8830a569616873af78ff1e025b23adabbd22825510","abstract_canon_sha256":"bcad54f8b75030f081a59a09e937d750f7d30eb2ab82783b53dda0349e2b5646"},"schema_version":"1.0"},"canonical_sha256":"f55e0b8e1578d18ed6d100f99f5257083451a518d178904d285f36b2d2706390","source":{"kind":"arxiv","id":"2208.10560","version":2},"source_aliases":[{"alias_kind":"arxiv","alias_value":"2208.10560","created_at":"2026-07-05T06:36:22Z"},{"alias_kind":"arxiv_version","alias_value":"2208.10560v2","created_at":"2026-07-05T06:36:22Z"},{"alias_kind":"doi","alias_value":"10.48550/arxiv.2208.10560","created_at":"2026-07-05T06:36:22Z"},{"alias_kind":"pith_short_12","alias_value":"6VPAXDQVPDIY","created_at":"2026-07-05T06:36:22Z"},{"alias_kind":"pith_short_16","alias_value":"6VPAXDQVPDIY5VWR","created_at":"2026-07-05T06:36:22Z"},{"alias_kind":"pith_short_8","alias_value":"6VPAXDQV","created_at":"2026-07-05T06:36:22Z"}],"events":[{"event_type":"record_created","subject_pith_number":"pith:2022:6VPAXDQVPDIY5VWRAD4Z6USXBA","target":"record","payload":{"canonical_record":{"source":{"id":"2208.10560","kind":"arxiv","version":2},"metadata":{"license":"http://creativecommons.org/licenses/by-nc-nd/4.0/","primary_cat":"astro-ph.CO","submitted_at":"2022-08-22T19:32:34Z","cross_cats_sorted":[],"title_canon_sha256":"26aa3979a1d3cc5a1abffa8830a569616873af78ff1e025b23adabbd22825510","abstract_canon_sha256":"bcad54f8b75030f081a59a09e937d750f7d30eb2ab82783b53dda0349e2b5646"},"schema_version":"1.0"},"canonical_sha256":"f55e0b8e1578d18ed6d100f99f5257083451a518d178904d285f36b2d2706390","receipt":{"kind":"pith_receipt","key_id":"pith-v1-2026-05","algorithm":"ed25519","signed_at":"2026-07-05T06:36:22.543300Z","signature_b64":"HPeQ4KYlsu2PQzBbrAggjiCj08ENt9kflx4BON9WfneTXCiTRGMw0hHflbCTr6TfnCgoMVIJ+G9MX4KCfvyCDA==","signed_message":"canonical_sha256_bytes","builder_version":"pith-number-builder-2026-05-17-v1","receipt_version":"0.3","canonical_sha256":"f55e0b8e1578d18ed6d100f99f5257083451a518d178904d285f36b2d2706390","last_reissued_at":"2026-07-05T06:36:22.542876Z","signature_status":"signed_v1","first_computed_at":"2026-07-05T06:36:22.542876Z","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54"},"source_kind":"arxiv","source_id":"2208.10560","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":"2026-07-05T06:36:22Z","supersedes":[],"prev_event":null,"signature":{"signature_status":"signed_v1","algorithm":"ed25519","key_id":"pith-v1-2026-05","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54","signature_b64":"JZEQwwP5mdnzO6S5MP2JvO53ETz0VX4moE2kvhI/mCUVToM/JM+W1pC9aFMfm+/5gf0mJmtTGfvGVVIciythCg==","signed_message":"open_graph_event_sha256_bytes","signed_at":"2026-08-17T01:19:57.338402Z"},"content_sha256":"6cdce90b74a7d226894e1679a357c87ee2696378af8d6a52295911bdc3c775e8","schema_version":"1.0","event_id":"sha256:6cdce90b74a7d226894e1679a357c87ee2696378af8d6a52295911bdc3c775e8"},{"event_type":"graph_snapshot","subject_pith_number":"pith:2022:6VPAXDQVPDIY5VWRAD4Z6USXBA","target":"graph","payload":{"graph_snapshot":{"paper":{"title":"Constraining effective neutrino species with bispectrum of large scale structures","license":"http://creativecommons.org/licenses/by-nc-nd/4.0/","headline":"","cross_cats":[],"primary_cat":"astro-ph.CO","authors_text":"Chen Heinrich, Olivier Dor\\'e, Yanlong Shi","submitted_at":"2022-08-22T19:32:34Z","abstract_excerpt":"Relativistic and free-streaming particles like neutrinos leave imprints in large scale structures (LSS), providing probes of the effective number of neutrino species $N_{\\rm eff}$. In this paper, we use the Fisher formalism to forecast $N_{\\rm eff}$ constraints from the bispectrum (B) of LSS for current and future galaxy redshift surveys, specifically using information from the baryon acoustic oscillations (BAOs). Modeling the galaxy bispectrum at the tree-level, we find that adding the bispectrum constraints to current CMB constraints from Planck can improve upon the Planck-only constraints o"},"claims":{"count":0,"items":[],"snapshot_sha256":"258153158e38e3291e3d48162225fcdb2d5a3ed65a07baac614ab91432fd4f57"},"source":{"id":"2208.10560","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":""},"integrity":{"clean":true,"summary":{"advisory":0,"critical":0,"by_detector":{},"informational":0},"endpoint":"/pith/2208.10560/integrity.json","findings":[],"available":true,"detectors_run":[],"snapshot_sha256":"c28c3603d3b5d939e8dc4c7e95fa8dfce3d595e45f758748cecf8e644a296938"},"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":"2026-07-05T06:36:22Z","supersedes":[],"prev_event":null,"signature":{"signature_status":"signed_v1","algorithm":"ed25519","key_id":"pith-v1-2026-05","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54","signature_b64":"PChSgE1HEOFFRQ7btH9KOvayqKdwIrzc3MccSu+D0e6g85KDlt8kzbnAWiigqdKgMfhVRfGXwUBVGF2wtgsSAQ==","signed_message":"open_graph_event_sha256_bytes","signed_at":"2026-08-17T01:19:57.338923Z"},"content_sha256":"2343a5bba0c6da6a8e77bdad6f3e4aee015d7b9b90e0cad58724ce10de912280","schema_version":"1.0","event_id":"sha256:2343a5bba0c6da6a8e77bdad6f3e4aee015d7b9b90e0cad58724ce10de912280"}],"timestamp_proofs":[],"mirror_hints":[{"mirror_type":"https","name":"Pith Resolver","base_url":"https://pith.science","bundle_url":"https://pith.science/pith/6VPAXDQVPDIY5VWRAD4Z6USXBA/bundle.json","state_url":"https://pith.science/pith/6VPAXDQVPDIY5VWRAD4Z6USXBA/state.json","well_known_bundle_url":"https://pith.science/.well-known/pith/6VPAXDQVPDIY5VWRAD4Z6USXBA/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":"2026-08-17T01:19:57Z","links":{"resolver":"https://pith.science/pith/6VPAXDQVPDIY5VWRAD4Z6USXBA","bundle":"https://pith.science/pith/6VPAXDQVPDIY5VWRAD4Z6USXBA/bundle.json","state":"https://pith.science/pith/6VPAXDQVPDIY5VWRAD4Z6USXBA/state.json","well_known_bundle":"https://pith.science/.well-known/pith/6VPAXDQVPDIY5VWRAD4Z6USXBA/bundle.json"},"state":{"state_type":"pith_open_graph_state","state_version":"1.0","pith_number":"pith:2022:6VPAXDQVPDIY5VWRAD4Z6USXBA","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":"bcad54f8b75030f081a59a09e937d750f7d30eb2ab82783b53dda0349e2b5646","cross_cats_sorted":[],"license":"http://creativecommons.org/licenses/by-nc-nd/4.0/","primary_cat":"astro-ph.CO","submitted_at":"2022-08-22T19:32:34Z","title_canon_sha256":"26aa3979a1d3cc5a1abffa8830a569616873af78ff1e025b23adabbd22825510"},"schema_version":"1.0","source":{"id":"2208.10560","kind":"arxiv","version":2}},"source_aliases":[{"alias_kind":"arxiv","alias_value":"2208.10560","created_at":"2026-07-05T06:36:22Z"},{"alias_kind":"arxiv_version","alias_value":"2208.10560v2","created_at":"2026-07-05T06:36:22Z"},{"alias_kind":"doi","alias_value":"10.48550/arxiv.2208.10560","created_at":"2026-07-05T06:36:22Z"},{"alias_kind":"pith_short_12","alias_value":"6VPAXDQVPDIY","created_at":"2026-07-05T06:36:22Z"},{"alias_kind":"pith_short_16","alias_value":"6VPAXDQVPDIY5VWR","created_at":"2026-07-05T06:36:22Z"},{"alias_kind":"pith_short_8","alias_value":"6VPAXDQV","created_at":"2026-07-05T06:36:22Z"}],"graph_snapshots":[{"event_id":"sha256:2343a5bba0c6da6a8e77bdad6f3e4aee015d7b9b90e0cad58724ce10de912280","target":"graph","created_at":"2026-07-05T06:36:22Z","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"},"integrity":{"available":true,"clean":true,"detectors_run":[],"endpoint":"/pith/2208.10560/integrity.json","findings":[],"snapshot_sha256":"c28c3603d3b5d939e8dc4c7e95fa8dfce3d595e45f758748cecf8e644a296938","summary":{"advisory":0,"by_detector":{},"critical":0,"informational":0}},"paper":{"abstract_excerpt":"Relativistic and free-streaming particles like neutrinos leave imprints in large scale structures (LSS), providing probes of the effective number of neutrino species $N_{\\rm eff}$. In this paper, we use the Fisher formalism to forecast $N_{\\rm eff}$ constraints from the bispectrum (B) of LSS for current and future galaxy redshift surveys, specifically using information from the baryon acoustic oscillations (BAOs). Modeling the galaxy bispectrum at the tree-level, we find that adding the bispectrum constraints to current CMB constraints from Planck can improve upon the Planck-only constraints o","authors_text":"Chen Heinrich, Olivier Dor\\'e, Yanlong Shi","cross_cats":[],"headline":"","license":"http://creativecommons.org/licenses/by-nc-nd/4.0/","primary_cat":"astro-ph.CO","submitted_at":"2022-08-22T19:32:34Z","title":"Constraining effective neutrino species with bispectrum of large scale structures"},"references":{"count":0,"internal_anchors":0,"resolved_work":0,"sample":[],"snapshot_sha256":"258153158e38e3291e3d48162225fcdb2d5a3ed65a07baac614ab91432fd4f57"},"source":{"id":"2208.10560","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":"sha256:6cdce90b74a7d226894e1679a357c87ee2696378af8d6a52295911bdc3c775e8","target":"record","created_at":"2026-07-05T06:36:22Z","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":"bcad54f8b75030f081a59a09e937d750f7d30eb2ab82783b53dda0349e2b5646","cross_cats_sorted":[],"license":"http://creativecommons.org/licenses/by-nc-nd/4.0/","primary_cat":"astro-ph.CO","submitted_at":"2022-08-22T19:32:34Z","title_canon_sha256":"26aa3979a1d3cc5a1abffa8830a569616873af78ff1e025b23adabbd22825510"},"schema_version":"1.0","source":{"id":"2208.10560","kind":"arxiv","version":2}},"canonical_sha256":"f55e0b8e1578d18ed6d100f99f5257083451a518d178904d285f36b2d2706390","receipt":{"algorithm":"ed25519","builder_version":"pith-number-builder-2026-05-17-v1","canonical_sha256":"f55e0b8e1578d18ed6d100f99f5257083451a518d178904d285f36b2d2706390","first_computed_at":"2026-07-05T06:36:22.542876Z","key_id":"pith-v1-2026-05","kind":"pith_receipt","last_reissued_at":"2026-07-05T06:36:22.542876Z","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54","receipt_version":"0.3","signature_b64":"HPeQ4KYlsu2PQzBbrAggjiCj08ENt9kflx4BON9WfneTXCiTRGMw0hHflbCTr6TfnCgoMVIJ+G9MX4KCfvyCDA==","signature_status":"signed_v1","signed_at":"2026-07-05T06:36:22.543300Z","signed_message":"canonical_sha256_bytes"},"source_id":"2208.10560","source_kind":"arxiv","source_version":2}}},"equivocations":[],"invalid_events":[],"applied_event_ids":["sha256:6cdce90b74a7d226894e1679a357c87ee2696378af8d6a52295911bdc3c775e8","sha256:2343a5bba0c6da6a8e77bdad6f3e4aee015d7b9b90e0cad58724ce10de912280"],"state_sha256":"8cf0e0d7839d02fb8e082c01ea2e1b2373232b163b0c76b32b0191d110d7d39d"},"bundle_signature":{"signature_status":"signed_v1","algorithm":"ed25519","key_id":"pith-v1-2026-05","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54","signature_b64":"swq+15YtunNsNZc8t5DcFVgVsUIfY1dKobchYGpasONxZ40J4nDxTXlk2Aa1Uqih2O8ZW2kqhYtC/Q3pKVaJDQ==","signed_message":"bundle_sha256_bytes","signed_at":"2026-08-17T01:19:57.343032Z","bundle_sha256":"9f7cfdac448c9879e16246cf6524ec0085169c7ad4ed01d34bd76b9f44e2be89"}}