{"bundle_type":"pith_open_graph_bundle","bundle_version":"1.0","pith_number":"pith:2020:SE34H6Y7CSKV37YDALMRDSAME4","short_pith_number":"pith:SE34H6Y7","canonical_record":{"source":{"id":"2006.06594","kind":"arxiv","version":1},"metadata":{"license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"astro-ph.CO","submitted_at":"2020-06-11T16:46:29Z","cross_cats_sorted":[],"title_canon_sha256":"138450bd326aa208fc8e7386a689c714bc51f69f33ffa7514842320e2d5b7d63","abstract_canon_sha256":"4bba6cd6fce9c2cb1fbce16ba948b602ca5e47bf647b189534050497c97deb90"},"schema_version":"1.0"},"canonical_sha256":"9137c3fb1f14955dff0302d911c80c272d9050b41ecc8ff55ee9848497e13175","source":{"kind":"arxiv","id":"2006.06594","version":1},"source_aliases":[{"alias_kind":"arxiv","alias_value":"2006.06594","created_at":"2026-07-05T02:25:19Z"},{"alias_kind":"arxiv_version","alias_value":"2006.06594v1","created_at":"2026-07-05T02:25:19Z"},{"alias_kind":"doi","alias_value":"10.48550/arxiv.2006.06594","created_at":"2026-07-05T02:25:19Z"},{"alias_kind":"pith_short_12","alias_value":"SE34H6Y7CSKV","created_at":"2026-07-05T02:25:19Z"},{"alias_kind":"pith_short_16","alias_value":"SE34H6Y7CSKV37YD","created_at":"2026-07-05T02:25:19Z"},{"alias_kind":"pith_short_8","alias_value":"SE34H6Y7","created_at":"2026-07-05T02:25:19Z"}],"events":[{"event_type":"record_created","subject_pith_number":"pith:2020:SE34H6Y7CSKV37YDALMRDSAME4","target":"record","payload":{"canonical_record":{"source":{"id":"2006.06594","kind":"arxiv","version":1},"metadata":{"license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"astro-ph.CO","submitted_at":"2020-06-11T16:46:29Z","cross_cats_sorted":[],"title_canon_sha256":"138450bd326aa208fc8e7386a689c714bc51f69f33ffa7514842320e2d5b7d63","abstract_canon_sha256":"4bba6cd6fce9c2cb1fbce16ba948b602ca5e47bf647b189534050497c97deb90"},"schema_version":"1.0"},"canonical_sha256":"9137c3fb1f14955dff0302d911c80c272d9050b41ecc8ff55ee9848497e13175","receipt":{"kind":"pith_receipt","key_id":"pith-v1-2026-05","algorithm":"ed25519","signed_at":"2026-07-05T02:25:19.861333Z","signature_b64":"ypoPewQVjjqeH5k/Gr7NcVHcit1/rAOf6tZq97zEWCN3vR2TQe4Q41nCQxGTTdTJJdGnkn7Hqc3lQF/1Cdy6Cw==","signed_message":"canonical_sha256_bytes","builder_version":"pith-number-builder-2026-05-17-v1","receipt_version":"0.3","canonical_sha256":"9137c3fb1f14955dff0302d911c80c272d9050b41ecc8ff55ee9848497e13175","last_reissued_at":"2026-07-05T02:25:19.860887Z","signature_status":"signed_v1","first_computed_at":"2026-07-05T02:25:19.860887Z","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54"},"source_kind":"arxiv","source_id":"2006.06594","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":"2026-07-05T02:25:19Z","supersedes":[],"prev_event":null,"signature":{"signature_status":"signed_v1","algorithm":"ed25519","key_id":"pith-v1-2026-05","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54","signature_b64":"4CU5m/jtHrKNecI63+zjUkDLNhFH2Jskgzel8Fpz+3iaBrKDK9MKxJ85ATKBegB4M44XcEcP2S5BIbEUV5mwAQ==","signed_message":"open_graph_event_sha256_bytes","signed_at":"2026-08-07T19:51:52.127365Z"},"content_sha256":"a5ed904d8d58d6c6d43ae2f1811e61a1a129c07a33e947aca9f92b9dd11e4ec7","schema_version":"1.0","event_id":"sha256:a5ed904d8d58d6c6d43ae2f1811e61a1a129c07a33e947aca9f92b9dd11e4ec7"},{"event_type":"graph_snapshot","subject_pith_number":"pith:2020:SE34H6Y7CSKV37YDALMRDSAME4","target":"graph","payload":{"graph_snapshot":{"paper":{"title":"Mitigating the optical depth degeneracy using the kinematic Sunyaev-Zel'dovich effect with CMB-S4","license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","headline":"","cross_cats":[],"primary_cat":"astro-ph.CO","authors_text":"J. Colin Hill, Marcelo A. Alvarez, Margaret Ikape, Ren\\'ee Hlo\\v{z}ek, Simone Ferraro","submitted_at":"2020-06-11T16:46:29Z","abstract_excerpt":"The epoch of reionization is one of the major phase transitions in the history of the universe, and is a focus of ongoing and upcoming cosmic microwave background (CMB) experiments with improved sensitivity to small-scale fluctuations. Reionization also represents a significant contaminant to CMB-derived cosmological parameter constraints, due to the degeneracy between the Thomson-scattering optical depth, $\\tau$, and the amplitude of scalar perturbations, $A_s$. This degeneracy subsequently hinders the ability of large-scale structure data to constrain the sum of the neutrino masses, a major "},"claims":{"count":0,"items":[],"snapshot_sha256":"258153158e38e3291e3d48162225fcdb2d5a3ed65a07baac614ab91432fd4f57"},"source":{"id":"2006.06594","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/2006.06594/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":"2026-07-05T02:25:19Z","supersedes":[],"prev_event":null,"signature":{"signature_status":"signed_v1","algorithm":"ed25519","key_id":"pith-v1-2026-05","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54","signature_b64":"7v0Za1U1Im2Gp8pD9/QL0S5BhT05RMtBocQsIHvGfdeWTAkJnZe0lwXV2zfrPOhe/au6hkZDxAdddMffq7IaDA==","signed_message":"open_graph_event_sha256_bytes","signed_at":"2026-08-07T19:51:52.127832Z"},"content_sha256":"efff385f9e100f9e085b3d43cc8e5ad00bd178681d331191f878005eae06d1cf","schema_version":"1.0","event_id":"sha256:efff385f9e100f9e085b3d43cc8e5ad00bd178681d331191f878005eae06d1cf"}],"timestamp_proofs":[],"mirror_hints":[{"mirror_type":"https","name":"Pith Resolver","base_url":"https://pith.science","bundle_url":"https://pith.science/pith/SE34H6Y7CSKV37YDALMRDSAME4/bundle.json","state_url":"https://pith.science/pith/SE34H6Y7CSKV37YDALMRDSAME4/state.json","well_known_bundle_url":"https://pith.science/.well-known/pith/SE34H6Y7CSKV37YDALMRDSAME4/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":"2026-08-07T19:51:52Z","links":{"resolver":"https://pith.science/pith/SE34H6Y7CSKV37YDALMRDSAME4","bundle":"https://pith.science/pith/SE34H6Y7CSKV37YDALMRDSAME4/bundle.json","state":"https://pith.science/pith/SE34H6Y7CSKV37YDALMRDSAME4/state.json","well_known_bundle":"https://pith.science/.well-known/pith/SE34H6Y7CSKV37YDALMRDSAME4/bundle.json"},"state":{"state_type":"pith_open_graph_state","state_version":"1.0","pith_number":"pith:2020:SE34H6Y7CSKV37YDALMRDSAME4","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":"4bba6cd6fce9c2cb1fbce16ba948b602ca5e47bf647b189534050497c97deb90","cross_cats_sorted":[],"license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"astro-ph.CO","submitted_at":"2020-06-11T16:46:29Z","title_canon_sha256":"138450bd326aa208fc8e7386a689c714bc51f69f33ffa7514842320e2d5b7d63"},"schema_version":"1.0","source":{"id":"2006.06594","kind":"arxiv","version":1}},"source_aliases":[{"alias_kind":"arxiv","alias_value":"2006.06594","created_at":"2026-07-05T02:25:19Z"},{"alias_kind":"arxiv_version","alias_value":"2006.06594v1","created_at":"2026-07-05T02:25:19Z"},{"alias_kind":"doi","alias_value":"10.48550/arxiv.2006.06594","created_at":"2026-07-05T02:25:19Z"},{"alias_kind":"pith_short_12","alias_value":"SE34H6Y7CSKV","created_at":"2026-07-05T02:25:19Z"},{"alias_kind":"pith_short_16","alias_value":"SE34H6Y7CSKV37YD","created_at":"2026-07-05T02:25:19Z"},{"alias_kind":"pith_short_8","alias_value":"SE34H6Y7","created_at":"2026-07-05T02:25:19Z"}],"graph_snapshots":[{"event_id":"sha256:efff385f9e100f9e085b3d43cc8e5ad00bd178681d331191f878005eae06d1cf","target":"graph","created_at":"2026-07-05T02:25:19Z","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/2006.06594/integrity.json","findings":[],"snapshot_sha256":"c28c3603d3b5d939e8dc4c7e95fa8dfce3d595e45f758748cecf8e644a296938","summary":{"advisory":0,"by_detector":{},"critical":0,"informational":0}},"paper":{"abstract_excerpt":"The epoch of reionization is one of the major phase transitions in the history of the universe, and is a focus of ongoing and upcoming cosmic microwave background (CMB) experiments with improved sensitivity to small-scale fluctuations. Reionization also represents a significant contaminant to CMB-derived cosmological parameter constraints, due to the degeneracy between the Thomson-scattering optical depth, $\\tau$, and the amplitude of scalar perturbations, $A_s$. This degeneracy subsequently hinders the ability of large-scale structure data to constrain the sum of the neutrino masses, a major ","authors_text":"J. Colin Hill, Marcelo A. Alvarez, Margaret Ikape, Ren\\'ee Hlo\\v{z}ek, Simone Ferraro","cross_cats":[],"headline":"","license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"astro-ph.CO","submitted_at":"2020-06-11T16:46:29Z","title":"Mitigating the optical depth degeneracy using the kinematic Sunyaev-Zel'dovich effect with CMB-S4"},"references":{"count":0,"internal_anchors":0,"resolved_work":0,"sample":[],"snapshot_sha256":"258153158e38e3291e3d48162225fcdb2d5a3ed65a07baac614ab91432fd4f57"},"source":{"id":"2006.06594","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:a5ed904d8d58d6c6d43ae2f1811e61a1a129c07a33e947aca9f92b9dd11e4ec7","target":"record","created_at":"2026-07-05T02:25:19Z","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":"4bba6cd6fce9c2cb1fbce16ba948b602ca5e47bf647b189534050497c97deb90","cross_cats_sorted":[],"license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"astro-ph.CO","submitted_at":"2020-06-11T16:46:29Z","title_canon_sha256":"138450bd326aa208fc8e7386a689c714bc51f69f33ffa7514842320e2d5b7d63"},"schema_version":"1.0","source":{"id":"2006.06594","kind":"arxiv","version":1}},"canonical_sha256":"9137c3fb1f14955dff0302d911c80c272d9050b41ecc8ff55ee9848497e13175","receipt":{"algorithm":"ed25519","builder_version":"pith-number-builder-2026-05-17-v1","canonical_sha256":"9137c3fb1f14955dff0302d911c80c272d9050b41ecc8ff55ee9848497e13175","first_computed_at":"2026-07-05T02:25:19.860887Z","key_id":"pith-v1-2026-05","kind":"pith_receipt","last_reissued_at":"2026-07-05T02:25:19.860887Z","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54","receipt_version":"0.3","signature_b64":"ypoPewQVjjqeH5k/Gr7NcVHcit1/rAOf6tZq97zEWCN3vR2TQe4Q41nCQxGTTdTJJdGnkn7Hqc3lQF/1Cdy6Cw==","signature_status":"signed_v1","signed_at":"2026-07-05T02:25:19.861333Z","signed_message":"canonical_sha256_bytes"},"source_id":"2006.06594","source_kind":"arxiv","source_version":1}}},"equivocations":[],"invalid_events":[],"applied_event_ids":["sha256:a5ed904d8d58d6c6d43ae2f1811e61a1a129c07a33e947aca9f92b9dd11e4ec7","sha256:efff385f9e100f9e085b3d43cc8e5ad00bd178681d331191f878005eae06d1cf"],"state_sha256":"d9db9348fa4ec52fb2e82a3877837e3436f5d59b884c3f814172045f1a61ccf8"},"bundle_signature":{"signature_status":"signed_v1","algorithm":"ed25519","key_id":"pith-v1-2026-05","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54","signature_b64":"7eMccMsbgbD14qfuC4GvPIEm6y6KC57q+yHsC52We+B1UxXU2H3SmCsGRk/UnUmZdpsOOI9UYPGqkpiNycuvBg==","signed_message":"bundle_sha256_bytes","signed_at":"2026-08-07T19:51:52.132346Z","bundle_sha256":"99c9df2c9210e66ed1e5eee3122b626bff0f7b01f8ab58211b39e2c67f9bd350"}}