{"bundle_type":"pith_open_graph_bundle","bundle_version":"1.0","pith_number":"pith:2009:BUVSF55HOTBKB7OYREJCIQQBRW","short_pith_number":"pith:BUVSF55H","canonical_record":{"source":{"id":"0910.0008","kind":"arxiv","version":2},"metadata":{"license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"astro-ph.CO","submitted_at":"2009-10-01T09:47:47Z","cross_cats_sorted":["hep-ph"],"title_canon_sha256":"5be2348bd04b86aa4b8bb5a877a1133e2681b0f0caf3e87c657c67ac36fb764d","abstract_canon_sha256":"0cc237e07fd20f5995ce29fa93d4697977583e33ed9eea3443310d469adf7abd"},"schema_version":"1.0"},"canonical_sha256":"0d2b22f7a774c2a0fdd889122442018d80407d4b026088ecfc453e47ec5b1274","source":{"kind":"arxiv","id":"0910.0008","version":2},"source_aliases":[{"alias_kind":"arxiv","alias_value":"0910.0008","created_at":"2026-05-18T04:33:36Z"},{"alias_kind":"arxiv_version","alias_value":"0910.0008v2","created_at":"2026-05-18T04:33:36Z"},{"alias_kind":"doi","alias_value":"10.48550/arxiv.0910.0008","created_at":"2026-05-18T04:33:36Z"},{"alias_kind":"pith_short_12","alias_value":"BUVSF55HOTBK","created_at":"2026-05-18T12:25:58Z"},{"alias_kind":"pith_short_16","alias_value":"BUVSF55HOTBKB7OY","created_at":"2026-05-18T12:25:58Z"},{"alias_kind":"pith_short_8","alias_value":"BUVSF55H","created_at":"2026-05-18T12:25:58Z"}],"events":[{"event_type":"record_created","subject_pith_number":"pith:2009:BUVSF55HOTBKB7OYREJCIQQBRW","target":"record","payload":{"canonical_record":{"source":{"id":"0910.0008","kind":"arxiv","version":2},"metadata":{"license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"astro-ph.CO","submitted_at":"2009-10-01T09:47:47Z","cross_cats_sorted":["hep-ph"],"title_canon_sha256":"5be2348bd04b86aa4b8bb5a877a1133e2681b0f0caf3e87c657c67ac36fb764d","abstract_canon_sha256":"0cc237e07fd20f5995ce29fa93d4697977583e33ed9eea3443310d469adf7abd"},"schema_version":"1.0"},"canonical_sha256":"0d2b22f7a774c2a0fdd889122442018d80407d4b026088ecfc453e47ec5b1274","receipt":{"kind":"pith_receipt","key_id":"pith-v1-2026-05","algorithm":"ed25519","signed_at":"2026-05-18T04:33:36.512152Z","signature_b64":"re6u9q5slJyHGnutsSkF7WAjxV/oPeW438hcuDXsq5D3xYNcjnI9ATJgkT9el6nLpNYxiUMwkvKa0VRFUY3PAA==","signed_message":"canonical_sha256_bytes","builder_version":"pith-number-builder-2026-05-17-v1","receipt_version":"0.3","canonical_sha256":"0d2b22f7a774c2a0fdd889122442018d80407d4b026088ecfc453e47ec5b1274","last_reissued_at":"2026-05-18T04:33:36.511511Z","signature_status":"signed_v1","first_computed_at":"2026-05-18T04:33:36.511511Z","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54"},"source_kind":"arxiv","source_id":"0910.0008","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":"2026-05-18T04:33:36Z","supersedes":[],"prev_event":null,"signature":{"signature_status":"signed_v1","algorithm":"ed25519","key_id":"pith-v1-2026-05","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54","signature_b64":"zzO6Ay42cJyeR4Uwf5OT1uG3VyaCHrGSkEriRnNDpJMRQEGIMJ086IpMPPPhxEpwrACuqmXSevMN8R1nSg8XDw==","signed_message":"open_graph_event_sha256_bytes","signed_at":"2026-06-06T13:12:43.109437Z"},"content_sha256":"74205b05d5301f9cb3f486d0f3bbd900646e353d194ff6c93559088f9573bcd2","schema_version":"1.0","event_id":"sha256:74205b05d5301f9cb3f486d0f3bbd900646e353d194ff6c93559088f9573bcd2"},{"event_type":"graph_snapshot","subject_pith_number":"pith:2009:BUVSF55HOTBKB7OYREJCIQQBRW","target":"graph","payload":{"graph_snapshot":{"paper":{"title":"Robust Neutrino Constraints by Combining Low Redshift Observations with the CMB","license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","headline":"","cross_cats":["hep-ph"],"primary_cat":"astro-ph.CO","authors_text":"Beth A. Reid, Licia Verde, Olga Mena, Raul Jimenez","submitted_at":"2009-10-01T09:47:47Z","abstract_excerpt":"We illustrate how recently improved low-redshift cosmological measurements can tighten constraints on neutrino properties. In particular we examine the impact of the assumed cosmological model on the constraints. We first consider the new HST H0 = 74.2 +/- 3.6 measurement by Riess et al. (2009) and the sigma8*(Omegam/0.25)^0.41 = 0.832 +/- 0.033 constraint from Rozo et al. (2009) derived from the SDSS maxBCG Cluster Catalog. In a Lambda CDM model and when combined with WMAP5 constraints, these low-redshift measurements constrain sum mnu<0.4 eV at the 95% confidence level. This bound does not r"},"claims":{"count":0,"items":[],"snapshot_sha256":"258153158e38e3291e3d48162225fcdb2d5a3ed65a07baac614ab91432fd4f57"},"source":{"id":"0910.0008","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":"2026-05-18T04:33:36Z","supersedes":[],"prev_event":null,"signature":{"signature_status":"signed_v1","algorithm":"ed25519","key_id":"pith-v1-2026-05","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54","signature_b64":"usFSkkTAyP0hveoxJB3/FSIdm8rfZzE65hfz9JsjYyJKPunAesnqMwbTcrZKyklQhK0BGRFXQicvLMRfADV+Bw==","signed_message":"open_graph_event_sha256_bytes","signed_at":"2026-06-06T13:12:43.110072Z"},"content_sha256":"f0564cfe37a583c5c9ccde19f1a3e0ad1c062c4194a260a63c4b2dc4cdc00247","schema_version":"1.0","event_id":"sha256:f0564cfe37a583c5c9ccde19f1a3e0ad1c062c4194a260a63c4b2dc4cdc00247"}],"timestamp_proofs":[],"mirror_hints":[{"mirror_type":"https","name":"Pith Resolver","base_url":"https://pith.science","bundle_url":"https://pith.science/pith/BUVSF55HOTBKB7OYREJCIQQBRW/bundle.json","state_url":"https://pith.science/pith/BUVSF55HOTBKB7OYREJCIQQBRW/state.json","well_known_bundle_url":"https://pith.science/.well-known/pith/BUVSF55HOTBKB7OYREJCIQQBRW/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":"2026-06-06T13:12:43Z","links":{"resolver":"https://pith.science/pith/BUVSF55HOTBKB7OYREJCIQQBRW","bundle":"https://pith.science/pith/BUVSF55HOTBKB7OYREJCIQQBRW/bundle.json","state":"https://pith.science/pith/BUVSF55HOTBKB7OYREJCIQQBRW/state.json","well_known_bundle":"https://pith.science/.well-known/pith/BUVSF55HOTBKB7OYREJCIQQBRW/bundle.json"},"state":{"state_type":"pith_open_graph_state","state_version":"1.0","pith_number":"pith:2009:BUVSF55HOTBKB7OYREJCIQQBRW","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":"0cc237e07fd20f5995ce29fa93d4697977583e33ed9eea3443310d469adf7abd","cross_cats_sorted":["hep-ph"],"license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"astro-ph.CO","submitted_at":"2009-10-01T09:47:47Z","title_canon_sha256":"5be2348bd04b86aa4b8bb5a877a1133e2681b0f0caf3e87c657c67ac36fb764d"},"schema_version":"1.0","source":{"id":"0910.0008","kind":"arxiv","version":2}},"source_aliases":[{"alias_kind":"arxiv","alias_value":"0910.0008","created_at":"2026-05-18T04:33:36Z"},{"alias_kind":"arxiv_version","alias_value":"0910.0008v2","created_at":"2026-05-18T04:33:36Z"},{"alias_kind":"doi","alias_value":"10.48550/arxiv.0910.0008","created_at":"2026-05-18T04:33:36Z"},{"alias_kind":"pith_short_12","alias_value":"BUVSF55HOTBK","created_at":"2026-05-18T12:25:58Z"},{"alias_kind":"pith_short_16","alias_value":"BUVSF55HOTBKB7OY","created_at":"2026-05-18T12:25:58Z"},{"alias_kind":"pith_short_8","alias_value":"BUVSF55H","created_at":"2026-05-18T12:25:58Z"}],"graph_snapshots":[{"event_id":"sha256:f0564cfe37a583c5c9ccde19f1a3e0ad1c062c4194a260a63c4b2dc4cdc00247","target":"graph","created_at":"2026-05-18T04:33:36Z","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 illustrate how recently improved low-redshift cosmological measurements can tighten constraints on neutrino properties. In particular we examine the impact of the assumed cosmological model on the constraints. We first consider the new HST H0 = 74.2 +/- 3.6 measurement by Riess et al. (2009) and the sigma8*(Omegam/0.25)^0.41 = 0.832 +/- 0.033 constraint from Rozo et al. (2009) derived from the SDSS maxBCG Cluster Catalog. In a Lambda CDM model and when combined with WMAP5 constraints, these low-redshift measurements constrain sum mnu<0.4 eV at the 95% confidence level. This bound does not r","authors_text":"Beth A. Reid, Licia Verde, Olga Mena, Raul Jimenez","cross_cats":["hep-ph"],"headline":"","license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"astro-ph.CO","submitted_at":"2009-10-01T09:47:47Z","title":"Robust Neutrino Constraints by Combining Low Redshift Observations with the CMB"},"references":{"count":0,"internal_anchors":0,"resolved_work":0,"sample":[],"snapshot_sha256":"258153158e38e3291e3d48162225fcdb2d5a3ed65a07baac614ab91432fd4f57"},"source":{"id":"0910.0008","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":"sha256:74205b05d5301f9cb3f486d0f3bbd900646e353d194ff6c93559088f9573bcd2","target":"record","created_at":"2026-05-18T04:33:36Z","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":"0cc237e07fd20f5995ce29fa93d4697977583e33ed9eea3443310d469adf7abd","cross_cats_sorted":["hep-ph"],"license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"astro-ph.CO","submitted_at":"2009-10-01T09:47:47Z","title_canon_sha256":"5be2348bd04b86aa4b8bb5a877a1133e2681b0f0caf3e87c657c67ac36fb764d"},"schema_version":"1.0","source":{"id":"0910.0008","kind":"arxiv","version":2}},"canonical_sha256":"0d2b22f7a774c2a0fdd889122442018d80407d4b026088ecfc453e47ec5b1274","receipt":{"algorithm":"ed25519","builder_version":"pith-number-builder-2026-05-17-v1","canonical_sha256":"0d2b22f7a774c2a0fdd889122442018d80407d4b026088ecfc453e47ec5b1274","first_computed_at":"2026-05-18T04:33:36.511511Z","key_id":"pith-v1-2026-05","kind":"pith_receipt","last_reissued_at":"2026-05-18T04:33:36.511511Z","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54","receipt_version":"0.3","signature_b64":"re6u9q5slJyHGnutsSkF7WAjxV/oPeW438hcuDXsq5D3xYNcjnI9ATJgkT9el6nLpNYxiUMwkvKa0VRFUY3PAA==","signature_status":"signed_v1","signed_at":"2026-05-18T04:33:36.512152Z","signed_message":"canonical_sha256_bytes"},"source_id":"0910.0008","source_kind":"arxiv","source_version":2}}},"equivocations":[],"invalid_events":[],"applied_event_ids":["sha256:74205b05d5301f9cb3f486d0f3bbd900646e353d194ff6c93559088f9573bcd2","sha256:f0564cfe37a583c5c9ccde19f1a3e0ad1c062c4194a260a63c4b2dc4cdc00247"],"state_sha256":"35f1419cbe4ac5f3012c1015ff4a253c2ac5a7256a632ca92e3d7c59af8db45f"},"bundle_signature":{"signature_status":"signed_v1","algorithm":"ed25519","key_id":"pith-v1-2026-05","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54","signature_b64":"kb3RcJSHeLqK+SU5apFFhykASfD92ObLGyd5qpDXFBF9jl/8Mp8GZtfzEFhiF3XkobHomaOhHVi4sD5J4P0BAg==","signed_message":"bundle_sha256_bytes","signed_at":"2026-06-06T13:12:43.113585Z","bundle_sha256":"33d8a5014890c1d39a39fe17493ccae3bfe0a9eb5ebcbe566b673824f16ed556"}}