{"bundle_type":"pith_open_graph_bundle","bundle_version":"1.0","pith_number":"pith:2018:G5FY64TMSCNK3USAJTTQS4UXDP","short_pith_number":"pith:G5FY64TM","canonical_record":{"source":{"id":"1807.05215","kind":"arxiv","version":1},"metadata":{"license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"astro-ph.IM","submitted_at":"2018-07-13T04:11:36Z","cross_cats_sorted":["astro-ph.CO"],"title_canon_sha256":"c3347ce57482255a6fdb5a6400fc910105fa09fa83a581fb0cb4d456d790b64d","abstract_canon_sha256":"5bdca6ce1cedd9a65a8f18faf7337b355cd7df021fab8f90004d8f17606da189"},"schema_version":"1.0"},"canonical_sha256":"374b8f726c909aadd2404ce70972971bd993662a9f499bbb5e48552ddfa1c0e6","source":{"kind":"arxiv","id":"1807.05215","version":1},"source_aliases":[{"alias_kind":"arxiv","alias_value":"1807.05215","created_at":"2026-05-18T00:10:21Z"},{"alias_kind":"arxiv_version","alias_value":"1807.05215v1","created_at":"2026-05-18T00:10:21Z"},{"alias_kind":"doi","alias_value":"10.48550/arxiv.1807.05215","created_at":"2026-05-18T00:10:21Z"},{"alias_kind":"pith_short_12","alias_value":"G5FY64TMSCNK","created_at":"2026-05-18T12:32:25Z"},{"alias_kind":"pith_short_16","alias_value":"G5FY64TMSCNK3USA","created_at":"2026-05-18T12:32:25Z"},{"alias_kind":"pith_short_8","alias_value":"G5FY64TM","created_at":"2026-05-18T12:32:25Z"}],"events":[{"event_type":"record_created","subject_pith_number":"pith:2018:G5FY64TMSCNK3USAJTTQS4UXDP","target":"record","payload":{"canonical_record":{"source":{"id":"1807.05215","kind":"arxiv","version":1},"metadata":{"license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"astro-ph.IM","submitted_at":"2018-07-13T04:11:36Z","cross_cats_sorted":["astro-ph.CO"],"title_canon_sha256":"c3347ce57482255a6fdb5a6400fc910105fa09fa83a581fb0cb4d456d790b64d","abstract_canon_sha256":"5bdca6ce1cedd9a65a8f18faf7337b355cd7df021fab8f90004d8f17606da189"},"schema_version":"1.0"},"canonical_sha256":"374b8f726c909aadd2404ce70972971bd993662a9f499bbb5e48552ddfa1c0e6","receipt":{"kind":"pith_receipt","key_id":"pith-v1-2026-05","algorithm":"ed25519","signed_at":"2026-05-18T00:10:21.454403Z","signature_b64":"3huizVey3WntnjQa8zeJymnlWaD1uLzObB7O+iWH0kLgkE/RZunSjDiR/9Yv2f/snzp8n6k/DDlICW9/1PYZCg==","signed_message":"canonical_sha256_bytes","builder_version":"pith-number-builder-2026-05-17-v1","receipt_version":"0.3","canonical_sha256":"374b8f726c909aadd2404ce70972971bd993662a9f499bbb5e48552ddfa1c0e6","last_reissued_at":"2026-05-18T00:10:21.453826Z","signature_status":"signed_v1","first_computed_at":"2026-05-18T00:10:21.453826Z","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54"},"source_kind":"arxiv","source_id":"1807.05215","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":"2026-05-18T00:10:21Z","supersedes":[],"prev_event":null,"signature":{"signature_status":"signed_v1","algorithm":"ed25519","key_id":"pith-v1-2026-05","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54","signature_b64":"xTNMoHEuu63+EV3ylXLXMXnL7uIJAFUrjMP3kKZZXzirOBowOr9tH5RA7pUcRskoqmDasu3SVo5NBgmR15b0CA==","signed_message":"open_graph_event_sha256_bytes","signed_at":"2026-06-03T03:28:59.171183Z"},"content_sha256":"77d01f02f746d800a22a269be35efe56b0b227e0046a608e2f3c5f255c8255b3","schema_version":"1.0","event_id":"sha256:77d01f02f746d800a22a269be35efe56b0b227e0046a608e2f3c5f255c8255b3"},{"event_type":"graph_snapshot","subject_pith_number":"pith:2018:G5FY64TMSCNK3USAJTTQS4UXDP","target":"graph","payload":{"graph_snapshot":{"paper":{"title":"BFORE: A CMB Balloon Payload to Measure Reionization, Neutrino Mass, and Cosmic Inflation","license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","headline":"","cross_cats":["astro-ph.CO"],"primary_cat":"astro-ph.IM","authors_text":"Carole Tucker, C. Barth Netterfield, Christopher Groppi, Douglas Scott, Enzo Pascale, Francois Boulanger, Giampaolo Pisano, Gilbert Holder, Giles Novak, Jeff McMahon, Jeffrey Filippini, Joaquin Vieira, Johanna Nagy, Johannes Hubmayr, John Ruhl, J. Richard Bond, Juan Soler, Laura Fissell, Mark Devlin, Michael Niemack, Peter Ade, Philip Mauskopf, Sean Bryan, Simon Doyle","submitted_at":"2018-07-13T04:11:36Z","abstract_excerpt":"BFORE is a high-altitude ultra-long-duration balloon mission to map the cosmic microwave background (CMB). During a 28-day mid-latitude flight launched from Wanaka, New Zealand, the instrument will map half the sky to improve measurements of the optical depth to reionization tau. This will break parameter degeneracies needed to detect neutrino mass. BFORE will also hunt for the gravitational wave B-mode signal, and map Galactic dust foregrounds. The mission will be the first near-space use of TES/mSQUID multichroic detectors (150/217 GHz and 280/353 GHz bands) with low-power readout electronic"},"claims":{"count":0,"items":[],"snapshot_sha256":"258153158e38e3291e3d48162225fcdb2d5a3ed65a07baac614ab91432fd4f57"},"source":{"id":"1807.05215","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":""},"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":"2026-05-18T00:10:21Z","supersedes":[],"prev_event":null,"signature":{"signature_status":"signed_v1","algorithm":"ed25519","key_id":"pith-v1-2026-05","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54","signature_b64":"MR7eznb7VW4YuoI+AtDkY7TRDtbPskOVm/pavWOtl9y3yD6Zj8jHGfiYgZgZcgq1JfHyk9hapWDeOsH8U8l+Dw==","signed_message":"open_graph_event_sha256_bytes","signed_at":"2026-06-03T03:28:59.171563Z"},"content_sha256":"f7c2201ec5f80f45a8c5797ec8cb09d19823981c91a78511c0cc8c8492236163","schema_version":"1.0","event_id":"sha256:f7c2201ec5f80f45a8c5797ec8cb09d19823981c91a78511c0cc8c8492236163"}],"timestamp_proofs":[],"mirror_hints":[{"mirror_type":"https","name":"Pith Resolver","base_url":"https://pith.science","bundle_url":"https://pith.science/pith/G5FY64TMSCNK3USAJTTQS4UXDP/bundle.json","state_url":"https://pith.science/pith/G5FY64TMSCNK3USAJTTQS4UXDP/state.json","well_known_bundle_url":"https://pith.science/.well-known/pith/G5FY64TMSCNK3USAJTTQS4UXDP/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":"2026-06-03T03:28:59Z","links":{"resolver":"https://pith.science/pith/G5FY64TMSCNK3USAJTTQS4UXDP","bundle":"https://pith.science/pith/G5FY64TMSCNK3USAJTTQS4UXDP/bundle.json","state":"https://pith.science/pith/G5FY64TMSCNK3USAJTTQS4UXDP/state.json","well_known_bundle":"https://pith.science/.well-known/pith/G5FY64TMSCNK3USAJTTQS4UXDP/bundle.json"},"state":{"state_type":"pith_open_graph_state","state_version":"1.0","pith_number":"pith:2018:G5FY64TMSCNK3USAJTTQS4UXDP","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":"5bdca6ce1cedd9a65a8f18faf7337b355cd7df021fab8f90004d8f17606da189","cross_cats_sorted":["astro-ph.CO"],"license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"astro-ph.IM","submitted_at":"2018-07-13T04:11:36Z","title_canon_sha256":"c3347ce57482255a6fdb5a6400fc910105fa09fa83a581fb0cb4d456d790b64d"},"schema_version":"1.0","source":{"id":"1807.05215","kind":"arxiv","version":1}},"source_aliases":[{"alias_kind":"arxiv","alias_value":"1807.05215","created_at":"2026-05-18T00:10:21Z"},{"alias_kind":"arxiv_version","alias_value":"1807.05215v1","created_at":"2026-05-18T00:10:21Z"},{"alias_kind":"doi","alias_value":"10.48550/arxiv.1807.05215","created_at":"2026-05-18T00:10:21Z"},{"alias_kind":"pith_short_12","alias_value":"G5FY64TMSCNK","created_at":"2026-05-18T12:32:25Z"},{"alias_kind":"pith_short_16","alias_value":"G5FY64TMSCNK3USA","created_at":"2026-05-18T12:32:25Z"},{"alias_kind":"pith_short_8","alias_value":"G5FY64TM","created_at":"2026-05-18T12:32:25Z"}],"graph_snapshots":[{"event_id":"sha256:f7c2201ec5f80f45a8c5797ec8cb09d19823981c91a78511c0cc8c8492236163","target":"graph","created_at":"2026-05-18T00:10:21Z","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":"BFORE is a high-altitude ultra-long-duration balloon mission to map the cosmic microwave background (CMB). During a 28-day mid-latitude flight launched from Wanaka, New Zealand, the instrument will map half the sky to improve measurements of the optical depth to reionization tau. This will break parameter degeneracies needed to detect neutrino mass. BFORE will also hunt for the gravitational wave B-mode signal, and map Galactic dust foregrounds. The mission will be the first near-space use of TES/mSQUID multichroic detectors (150/217 GHz and 280/353 GHz bands) with low-power readout electronic","authors_text":"Carole Tucker, C. Barth Netterfield, Christopher Groppi, Douglas Scott, Enzo Pascale, Francois Boulanger, Giampaolo Pisano, Gilbert Holder, Giles Novak, Jeff McMahon, Jeffrey Filippini, Joaquin Vieira, Johanna Nagy, Johannes Hubmayr, John Ruhl, J. Richard Bond, Juan Soler, Laura Fissell, Mark Devlin, Michael Niemack, Peter Ade, Philip Mauskopf, Sean Bryan, Simon Doyle","cross_cats":["astro-ph.CO"],"headline":"","license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"astro-ph.IM","submitted_at":"2018-07-13T04:11:36Z","title":"BFORE: A CMB Balloon Payload to Measure Reionization, Neutrino Mass, and Cosmic Inflation"},"references":{"count":0,"internal_anchors":0,"resolved_work":0,"sample":[],"snapshot_sha256":"258153158e38e3291e3d48162225fcdb2d5a3ed65a07baac614ab91432fd4f57"},"source":{"id":"1807.05215","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":"sha256:77d01f02f746d800a22a269be35efe56b0b227e0046a608e2f3c5f255c8255b3","target":"record","created_at":"2026-05-18T00:10:21Z","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":"5bdca6ce1cedd9a65a8f18faf7337b355cd7df021fab8f90004d8f17606da189","cross_cats_sorted":["astro-ph.CO"],"license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"astro-ph.IM","submitted_at":"2018-07-13T04:11:36Z","title_canon_sha256":"c3347ce57482255a6fdb5a6400fc910105fa09fa83a581fb0cb4d456d790b64d"},"schema_version":"1.0","source":{"id":"1807.05215","kind":"arxiv","version":1}},"canonical_sha256":"374b8f726c909aadd2404ce70972971bd993662a9f499bbb5e48552ddfa1c0e6","receipt":{"algorithm":"ed25519","builder_version":"pith-number-builder-2026-05-17-v1","canonical_sha256":"374b8f726c909aadd2404ce70972971bd993662a9f499bbb5e48552ddfa1c0e6","first_computed_at":"2026-05-18T00:10:21.453826Z","key_id":"pith-v1-2026-05","kind":"pith_receipt","last_reissued_at":"2026-05-18T00:10:21.453826Z","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54","receipt_version":"0.3","signature_b64":"3huizVey3WntnjQa8zeJymnlWaD1uLzObB7O+iWH0kLgkE/RZunSjDiR/9Yv2f/snzp8n6k/DDlICW9/1PYZCg==","signature_status":"signed_v1","signed_at":"2026-05-18T00:10:21.454403Z","signed_message":"canonical_sha256_bytes"},"source_id":"1807.05215","source_kind":"arxiv","source_version":1}}},"equivocations":[],"invalid_events":[],"applied_event_ids":["sha256:77d01f02f746d800a22a269be35efe56b0b227e0046a608e2f3c5f255c8255b3","sha256:f7c2201ec5f80f45a8c5797ec8cb09d19823981c91a78511c0cc8c8492236163"],"state_sha256":"c21f46d9378e91c2e51dadc440165709de802213c9a08253eee62aae4140e7a5"},"bundle_signature":{"signature_status":"signed_v1","algorithm":"ed25519","key_id":"pith-v1-2026-05","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54","signature_b64":"cKoLVsVVhnhhcf6kdcBVRx12uU3GIZP15cIEIrDoYH7v10qjXDB90rshbuYlNeDsstayIJhKs9I6keF43G6pBg==","signed_message":"bundle_sha256_bytes","signed_at":"2026-06-03T03:28:59.173537Z","bundle_sha256":"673f1e2722347e641164f1cc1e2e5d92fba04ce8a3f0181415e0f63f72f1eafe"}}