{"bundle_type":"pith_open_graph_bundle","bundle_version":"1.0","pith_number":"pith:2008:2QVH3BPIV36IJHGLDIHHTMRK66","short_pith_number":"pith:2QVH3BPI","canonical_record":{"source":{"id":"0801.4565","kind":"arxiv","version":1},"metadata":{"license":"","primary_cat":"astro-ph","submitted_at":"2008-01-29T21:19:58Z","cross_cats_sorted":[],"title_canon_sha256":"ef9ca7ccd037b77aa0f371e33ab2b25c21a2a6d3a8ab40396bffd95378208f90","abstract_canon_sha256":"77c5b469a46cc80b1768e1c1fe45b8e63a4214b52aee17ec83ed876c739ec5be"},"schema_version":"1.0"},"canonical_sha256":"d42a7d85e8aefc849ccb1a0e79b22af7a32d4342ba0699343b872804517e426d","source":{"kind":"arxiv","id":"0801.4565","version":1},"source_aliases":[{"alias_kind":"arxiv","alias_value":"0801.4565","created_at":"2026-07-04T15:44:40Z"},{"alias_kind":"arxiv_version","alias_value":"0801.4565v1","created_at":"2026-07-04T15:44:40Z"},{"alias_kind":"doi","alias_value":"10.48550/arxiv.0801.4565","created_at":"2026-07-04T15:44:40Z"},{"alias_kind":"pith_short_12","alias_value":"2QVH3BPIV36I","created_at":"2026-07-04T15:44:40Z"},{"alias_kind":"pith_short_16","alias_value":"2QVH3BPIV36IJHGL","created_at":"2026-07-04T15:44:40Z"},{"alias_kind":"pith_short_8","alias_value":"2QVH3BPI","created_at":"2026-07-04T15:44:40Z"}],"events":[{"event_type":"record_created","subject_pith_number":"pith:2008:2QVH3BPIV36IJHGLDIHHTMRK66","target":"record","payload":{"canonical_record":{"source":{"id":"0801.4565","kind":"arxiv","version":1},"metadata":{"license":"","primary_cat":"astro-ph","submitted_at":"2008-01-29T21:19:58Z","cross_cats_sorted":[],"title_canon_sha256":"ef9ca7ccd037b77aa0f371e33ab2b25c21a2a6d3a8ab40396bffd95378208f90","abstract_canon_sha256":"77c5b469a46cc80b1768e1c1fe45b8e63a4214b52aee17ec83ed876c739ec5be"},"schema_version":"1.0"},"canonical_sha256":"d42a7d85e8aefc849ccb1a0e79b22af7a32d4342ba0699343b872804517e426d","receipt":{"kind":"pith_receipt","key_id":"pith-v1-2026-05","algorithm":"ed25519","signed_at":"2026-07-04T15:44:40.261104Z","signature_b64":"hkqvRfwjEFhOfPIAlBII8lN/oVUbmweaCYZGZ63YvvkDvvLiYgFSq0PWu/vfmoAqsz49e56RAPbRbd/+aQ75Aw==","signed_message":"canonical_sha256_bytes","builder_version":"pith-number-builder-2026-05-17-v1","receipt_version":"0.3","canonical_sha256":"d42a7d85e8aefc849ccb1a0e79b22af7a32d4342ba0699343b872804517e426d","last_reissued_at":"2026-07-04T15:44:40.260695Z","signature_status":"signed_v1","first_computed_at":"2026-07-04T15:44:40.260695Z","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54"},"source_kind":"arxiv","source_id":"0801.4565","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":"2026-07-04T15:44:40Z","supersedes":[],"prev_event":null,"signature":{"signature_status":"signed_v1","algorithm":"ed25519","key_id":"pith-v1-2026-05","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54","signature_b64":"6e/WFz2Z4sSIovYWZtBrBWxJdwL+/O8bSVUjw4A3+wgSPSsSrLXJzKbb8pGNT9xE9FDHLnJ02B3e7agZBaNxCA==","signed_message":"open_graph_event_sha256_bytes","signed_at":"2026-08-11T02:54:21.553162Z"},"content_sha256":"7ab714647fa23a967788ba5f741b9e1ccbdca6c4249a068a3c0f88a42d9fea1c","schema_version":"1.0","event_id":"sha256:7ab714647fa23a967788ba5f741b9e1ccbdca6c4249a068a3c0f88a42d9fea1c"},{"event_type":"graph_snapshot","subject_pith_number":"pith:2008:2QVH3BPIV36IJHGLDIHHTMRK66","target":"graph","payload":{"graph_snapshot":{"paper":{"title":"Finding Evidence for Massive Neutrinos using 3D Weak Lensing","license":"","headline":"","cross_cats":[],"primary_cat":"astro-ph","authors_text":"A. F. Heavens, A. Melchiorri, L. Verde, P. Serra, T. D. Kitching","submitted_at":"2008-01-29T21:19:58Z","abstract_excerpt":"In this paper we investigate the potential of 3D cosmic shear to constrain massive neutrino parameters. We find that if the total mass is substantial (near the upper limits from LSS, but setting aside the Ly alpha limit for now), then 3D cosmic shear + Planck is very sensitive to neutrino mass and one may expect that a next generation photometric redshift survey could constrain the number of neutrinos N_nu and the sum of their masses m_nu to an accuracy of dN_nu ~ 0.08 and dm_nu ~ 0.03 eV respectively. If in fact the masses are close to zero, then the errors weaken to dN_nu ~ 0.10 and dm_nu~0."},"claims":{"count":0,"items":[],"snapshot_sha256":"258153158e38e3291e3d48162225fcdb2d5a3ed65a07baac614ab91432fd4f57"},"source":{"id":"0801.4565","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":""},"integrity":{"clean":true,"summary":{"advisory":0,"critical":0,"by_detector":{},"informational":0},"endpoint":"/pith/0801.4565/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":"2026-07-04T15:44:40Z","supersedes":[],"prev_event":null,"signature":{"signature_status":"signed_v1","algorithm":"ed25519","key_id":"pith-v1-2026-05","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54","signature_b64":"vktdqusscx7zYn0wn8u3thJjLUFluqFtP+aoWqIEr1jbtbnqCD4I3+GGO7JitdYTlpVqFVR6H7gOdx/1GoKlCw==","signed_message":"open_graph_event_sha256_bytes","signed_at":"2026-08-11T02:54:21.553659Z"},"content_sha256":"8b006b88877a71a3c802430447ecd39eb20da6bc0532d9fb3df7cad359390d8d","schema_version":"1.0","event_id":"sha256:8b006b88877a71a3c802430447ecd39eb20da6bc0532d9fb3df7cad359390d8d"}],"timestamp_proofs":[],"mirror_hints":[{"mirror_type":"https","name":"Pith Resolver","base_url":"https://pith.science","bundle_url":"https://pith.science/pith/2QVH3BPIV36IJHGLDIHHTMRK66/bundle.json","state_url":"https://pith.science/pith/2QVH3BPIV36IJHGLDIHHTMRK66/state.json","well_known_bundle_url":"https://pith.science/.well-known/pith/2QVH3BPIV36IJHGLDIHHTMRK66/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":"2026-08-11T02:54:21Z","links":{"resolver":"https://pith.science/pith/2QVH3BPIV36IJHGLDIHHTMRK66","bundle":"https://pith.science/pith/2QVH3BPIV36IJHGLDIHHTMRK66/bundle.json","state":"https://pith.science/pith/2QVH3BPIV36IJHGLDIHHTMRK66/state.json","well_known_bundle":"https://pith.science/.well-known/pith/2QVH3BPIV36IJHGLDIHHTMRK66/bundle.json"},"state":{"state_type":"pith_open_graph_state","state_version":"1.0","pith_number":"pith:2008:2QVH3BPIV36IJHGLDIHHTMRK66","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":"77c5b469a46cc80b1768e1c1fe45b8e63a4214b52aee17ec83ed876c739ec5be","cross_cats_sorted":[],"license":"","primary_cat":"astro-ph","submitted_at":"2008-01-29T21:19:58Z","title_canon_sha256":"ef9ca7ccd037b77aa0f371e33ab2b25c21a2a6d3a8ab40396bffd95378208f90"},"schema_version":"1.0","source":{"id":"0801.4565","kind":"arxiv","version":1}},"source_aliases":[{"alias_kind":"arxiv","alias_value":"0801.4565","created_at":"2026-07-04T15:44:40Z"},{"alias_kind":"arxiv_version","alias_value":"0801.4565v1","created_at":"2026-07-04T15:44:40Z"},{"alias_kind":"doi","alias_value":"10.48550/arxiv.0801.4565","created_at":"2026-07-04T15:44:40Z"},{"alias_kind":"pith_short_12","alias_value":"2QVH3BPIV36I","created_at":"2026-07-04T15:44:40Z"},{"alias_kind":"pith_short_16","alias_value":"2QVH3BPIV36IJHGL","created_at":"2026-07-04T15:44:40Z"},{"alias_kind":"pith_short_8","alias_value":"2QVH3BPI","created_at":"2026-07-04T15:44:40Z"}],"graph_snapshots":[{"event_id":"sha256:8b006b88877a71a3c802430447ecd39eb20da6bc0532d9fb3df7cad359390d8d","target":"graph","created_at":"2026-07-04T15:44:40Z","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"},"integrity":{"available":true,"clean":true,"detectors_run":[],"endpoint":"/pith/0801.4565/integrity.json","findings":[],"snapshot_sha256":"c28c3603d3b5d939e8dc4c7e95fa8dfce3d595e45f758748cecf8e644a296938","summary":{"advisory":0,"by_detector":{},"critical":0,"informational":0}},"paper":{"abstract_excerpt":"In this paper we investigate the potential of 3D cosmic shear to constrain massive neutrino parameters. We find that if the total mass is substantial (near the upper limits from LSS, but setting aside the Ly alpha limit for now), then 3D cosmic shear + Planck is very sensitive to neutrino mass and one may expect that a next generation photometric redshift survey could constrain the number of neutrinos N_nu and the sum of their masses m_nu to an accuracy of dN_nu ~ 0.08 and dm_nu ~ 0.03 eV respectively. If in fact the masses are close to zero, then the errors weaken to dN_nu ~ 0.10 and dm_nu~0.","authors_text":"A. F. Heavens, A. Melchiorri, L. Verde, P. Serra, T. D. Kitching","cross_cats":[],"headline":"","license":"","primary_cat":"astro-ph","submitted_at":"2008-01-29T21:19:58Z","title":"Finding Evidence for Massive Neutrinos using 3D Weak Lensing"},"references":{"count":0,"internal_anchors":0,"resolved_work":0,"sample":[],"snapshot_sha256":"258153158e38e3291e3d48162225fcdb2d5a3ed65a07baac614ab91432fd4f57"},"source":{"id":"0801.4565","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":"sha256:7ab714647fa23a967788ba5f741b9e1ccbdca6c4249a068a3c0f88a42d9fea1c","target":"record","created_at":"2026-07-04T15:44:40Z","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":"77c5b469a46cc80b1768e1c1fe45b8e63a4214b52aee17ec83ed876c739ec5be","cross_cats_sorted":[],"license":"","primary_cat":"astro-ph","submitted_at":"2008-01-29T21:19:58Z","title_canon_sha256":"ef9ca7ccd037b77aa0f371e33ab2b25c21a2a6d3a8ab40396bffd95378208f90"},"schema_version":"1.0","source":{"id":"0801.4565","kind":"arxiv","version":1}},"canonical_sha256":"d42a7d85e8aefc849ccb1a0e79b22af7a32d4342ba0699343b872804517e426d","receipt":{"algorithm":"ed25519","builder_version":"pith-number-builder-2026-05-17-v1","canonical_sha256":"d42a7d85e8aefc849ccb1a0e79b22af7a32d4342ba0699343b872804517e426d","first_computed_at":"2026-07-04T15:44:40.260695Z","key_id":"pith-v1-2026-05","kind":"pith_receipt","last_reissued_at":"2026-07-04T15:44:40.260695Z","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54","receipt_version":"0.3","signature_b64":"hkqvRfwjEFhOfPIAlBII8lN/oVUbmweaCYZGZ63YvvkDvvLiYgFSq0PWu/vfmoAqsz49e56RAPbRbd/+aQ75Aw==","signature_status":"signed_v1","signed_at":"2026-07-04T15:44:40.261104Z","signed_message":"canonical_sha256_bytes"},"source_id":"0801.4565","source_kind":"arxiv","source_version":1}}},"equivocations":[],"invalid_events":[],"applied_event_ids":["sha256:7ab714647fa23a967788ba5f741b9e1ccbdca6c4249a068a3c0f88a42d9fea1c","sha256:8b006b88877a71a3c802430447ecd39eb20da6bc0532d9fb3df7cad359390d8d"],"state_sha256":"63c45ac7c0a34054dff09aa763888413f3fb5e53a74889a4f327e2224c510042"},"bundle_signature":{"signature_status":"signed_v1","algorithm":"ed25519","key_id":"pith-v1-2026-05","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54","signature_b64":"mDg3CHyNgZE85BvWt7nGO+uAwm33gzE+xEWD5XwSLrlU/uXZ05KNcLmzE0+jDA7K46oyRpbIe8yUO6lfQCTKCw==","signed_message":"bundle_sha256_bytes","signed_at":"2026-08-11T02:54:21.557822Z","bundle_sha256":"91d249102d819ee3bfcde3010f4801b48960b657454420d62540af62fad93222"}}