{"bundle_type":"pith_open_graph_bundle","bundle_version":"1.0","pith_number":"pith:2024:A7RRYCLNL2D722CGPDAMCFJ3JG","short_pith_number":"pith:A7RRYCLN","canonical_record":{"source":{"id":"2405.01621","kind":"arxiv","version":2},"metadata":{"license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"astro-ph.CO","submitted_at":"2024-05-02T17:54:28Z","cross_cats_sorted":[],"title_canon_sha256":"2b1753dd6948883f659e94b2f48244ca43e7236ae5e1d4198525eb9cbd7acada","abstract_canon_sha256":"268678b8829e315a4068ce8503ed77f96d2bedf38affa6715aab602c7118e909"},"schema_version":"1.0"},"canonical_sha256":"07e31c096d5e87fd684678c0c1153b49a90b680d8cb063458e5c98e3608a6a2c","source":{"kind":"arxiv","id":"2405.01621","version":2},"source_aliases":[{"alias_kind":"arxiv","alias_value":"2405.01621","created_at":"2026-07-05T09:05:35Z"},{"alias_kind":"arxiv_version","alias_value":"2405.01621v2","created_at":"2026-07-05T09:05:35Z"},{"alias_kind":"doi","alias_value":"10.48550/arxiv.2405.01621","created_at":"2026-07-05T09:05:35Z"},{"alias_kind":"pith_short_12","alias_value":"A7RRYCLNL2D7","created_at":"2026-07-05T09:05:35Z"},{"alias_kind":"pith_short_16","alias_value":"A7RRYCLNL2D722CG","created_at":"2026-07-05T09:05:35Z"},{"alias_kind":"pith_short_8","alias_value":"A7RRYCLN","created_at":"2026-07-05T09:05:35Z"}],"events":[{"event_type":"record_created","subject_pith_number":"pith:2024:A7RRYCLNL2D722CGPDAMCFJ3JG","target":"record","payload":{"canonical_record":{"source":{"id":"2405.01621","kind":"arxiv","version":2},"metadata":{"license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"astro-ph.CO","submitted_at":"2024-05-02T17:54:28Z","cross_cats_sorted":[],"title_canon_sha256":"2b1753dd6948883f659e94b2f48244ca43e7236ae5e1d4198525eb9cbd7acada","abstract_canon_sha256":"268678b8829e315a4068ce8503ed77f96d2bedf38affa6715aab602c7118e909"},"schema_version":"1.0"},"canonical_sha256":"07e31c096d5e87fd684678c0c1153b49a90b680d8cb063458e5c98e3608a6a2c","receipt":{"kind":"pith_receipt","key_id":"pith-v1-2026-05","algorithm":"ed25519","signed_at":"2026-07-05T09:05:35.552360Z","signature_b64":"paBT5DHUbyviNtJ/rhbu5uJ91pVyfG55+tnGgozRaIcoqi0hInxtrpBmyYZbhxWmbn4kCRDH+vkVj3POV5TABw==","signed_message":"canonical_sha256_bytes","builder_version":"pith-number-builder-2026-05-17-v1","receipt_version":"0.3","canonical_sha256":"07e31c096d5e87fd684678c0c1153b49a90b680d8cb063458e5c98e3608a6a2c","last_reissued_at":"2026-07-05T09:05:35.551859Z","signature_status":"signed_v1","first_computed_at":"2026-07-05T09:05:35.551859Z","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54"},"source_kind":"arxiv","source_id":"2405.01621","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":"2026-07-05T09:05:35Z","supersedes":[],"prev_event":null,"signature":{"signature_status":"signed_v1","algorithm":"ed25519","key_id":"pith-v1-2026-05","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54","signature_b64":"/dMye20L3h5GmmDXoBeov33WuA4jmt6nTmhkwIj4coJ60+g3LVdgwtuDcd12mAwwMOzbC7Rhatyx/DeAjlClBQ==","signed_message":"open_graph_event_sha256_bytes","signed_at":"2026-07-07T08:05:05.333782Z"},"content_sha256":"e88327f8c48192f51b4c18c8b23387fc67f89009ca020dc94742f8d1ba6fc74d","schema_version":"1.0","event_id":"sha256:e88327f8c48192f51b4c18c8b23387fc67f89009ca020dc94742f8d1ba6fc74d"},{"event_type":"graph_snapshot","subject_pith_number":"pith:2024:A7RRYCLNL2D722CGPDAMCFJ3JG","target":"graph","payload":{"graph_snapshot":{"paper":{"title":"The Simons Observatory: Combining cross-spectral foreground cleaning with multitracer $B$-mode delensing for improved constraints on inflation","license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","headline":"","cross_cats":[],"primary_cat":"astro-ph.CO","authors_text":"Anthony Challinor, Anto I. Lonappan, Ant\\'on Baleato Lizancos, Baptiste Jost, Blake Sherwin, Carlo Baccigalupi, Carlos Herv\\'ias-Caimapo, David Alonso, Emilie Hertig, Erminia Calabrese, Giulio Fabbian, Irene Abril-Cabezas, Josquin Errard, Kevin Wolz, Luca Pagano, Magdy Morshed, Nicoletta Krachmalnicoff, Susanna Azzoni, Toshiya Namikawa","submitted_at":"2024-05-02T17:54:28Z","abstract_excerpt":"The Simons Observatory (SO), due to start full science operations in early 2025, aims to set tight constraints on inflationary physics by inferring the tensor-to-scalar ratio $r$ from measurements of CMB polarization $B$-modes. Its nominal design targets a precision $\\sigma(r=0) \\leq 0.003$ without delensing. Achieving this goal and further reducing uncertainties requires the mitigation of other sources of large-scale $B$-modes such as Galactic foregrounds and weak gravitational lensing. We present an analysis pipeline aiming to estimate $r$ by including delensing within a cross-spectral likel"},"claims":{"count":0,"items":[],"snapshot_sha256":"258153158e38e3291e3d48162225fcdb2d5a3ed65a07baac614ab91432fd4f57"},"source":{"id":"2405.01621","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/2405.01621/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":"2026-07-05T09:05:35Z","supersedes":[],"prev_event":null,"signature":{"signature_status":"signed_v1","algorithm":"ed25519","key_id":"pith-v1-2026-05","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54","signature_b64":"QHp/kR5QGmifawylB+aD33vMp1cFdksRpGLfqAuMLhJc9DTSkvY6cYBWlXYzVA+eUvKjwiA3h8zP/EBAJ4FbCA==","signed_message":"open_graph_event_sha256_bytes","signed_at":"2026-07-07T08:05:05.334154Z"},"content_sha256":"2af48264bf240cc0d3c125082c0da82fd04cb0d671d6dc147ce0d035f563e2a9","schema_version":"1.0","event_id":"sha256:2af48264bf240cc0d3c125082c0da82fd04cb0d671d6dc147ce0d035f563e2a9"}],"timestamp_proofs":[],"mirror_hints":[{"mirror_type":"https","name":"Pith Resolver","base_url":"https://pith.science","bundle_url":"https://pith.science/pith/A7RRYCLNL2D722CGPDAMCFJ3JG/bundle.json","state_url":"https://pith.science/pith/A7RRYCLNL2D722CGPDAMCFJ3JG/state.json","well_known_bundle_url":"https://pith.science/.well-known/pith/A7RRYCLNL2D722CGPDAMCFJ3JG/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":"2026-07-07T08:05:05Z","links":{"resolver":"https://pith.science/pith/A7RRYCLNL2D722CGPDAMCFJ3JG","bundle":"https://pith.science/pith/A7RRYCLNL2D722CGPDAMCFJ3JG/bundle.json","state":"https://pith.science/pith/A7RRYCLNL2D722CGPDAMCFJ3JG/state.json","well_known_bundle":"https://pith.science/.well-known/pith/A7RRYCLNL2D722CGPDAMCFJ3JG/bundle.json"},"state":{"state_type":"pith_open_graph_state","state_version":"1.0","pith_number":"pith:2024:A7RRYCLNL2D722CGPDAMCFJ3JG","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":"268678b8829e315a4068ce8503ed77f96d2bedf38affa6715aab602c7118e909","cross_cats_sorted":[],"license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"astro-ph.CO","submitted_at":"2024-05-02T17:54:28Z","title_canon_sha256":"2b1753dd6948883f659e94b2f48244ca43e7236ae5e1d4198525eb9cbd7acada"},"schema_version":"1.0","source":{"id":"2405.01621","kind":"arxiv","version":2}},"source_aliases":[{"alias_kind":"arxiv","alias_value":"2405.01621","created_at":"2026-07-05T09:05:35Z"},{"alias_kind":"arxiv_version","alias_value":"2405.01621v2","created_at":"2026-07-05T09:05:35Z"},{"alias_kind":"doi","alias_value":"10.48550/arxiv.2405.01621","created_at":"2026-07-05T09:05:35Z"},{"alias_kind":"pith_short_12","alias_value":"A7RRYCLNL2D7","created_at":"2026-07-05T09:05:35Z"},{"alias_kind":"pith_short_16","alias_value":"A7RRYCLNL2D722CG","created_at":"2026-07-05T09:05:35Z"},{"alias_kind":"pith_short_8","alias_value":"A7RRYCLN","created_at":"2026-07-05T09:05:35Z"}],"graph_snapshots":[{"event_id":"sha256:2af48264bf240cc0d3c125082c0da82fd04cb0d671d6dc147ce0d035f563e2a9","target":"graph","created_at":"2026-07-05T09:05:35Z","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/2405.01621/integrity.json","findings":[],"snapshot_sha256":"c28c3603d3b5d939e8dc4c7e95fa8dfce3d595e45f758748cecf8e644a296938","summary":{"advisory":0,"by_detector":{},"critical":0,"informational":0}},"paper":{"abstract_excerpt":"The Simons Observatory (SO), due to start full science operations in early 2025, aims to set tight constraints on inflationary physics by inferring the tensor-to-scalar ratio $r$ from measurements of CMB polarization $B$-modes. Its nominal design targets a precision $\\sigma(r=0) \\leq 0.003$ without delensing. Achieving this goal and further reducing uncertainties requires the mitigation of other sources of large-scale $B$-modes such as Galactic foregrounds and weak gravitational lensing. We present an analysis pipeline aiming to estimate $r$ by including delensing within a cross-spectral likel","authors_text":"Anthony Challinor, Anto I. Lonappan, Ant\\'on Baleato Lizancos, Baptiste Jost, Blake Sherwin, Carlo Baccigalupi, Carlos Herv\\'ias-Caimapo, David Alonso, Emilie Hertig, Erminia Calabrese, Giulio Fabbian, Irene Abril-Cabezas, Josquin Errard, Kevin Wolz, Luca Pagano, Magdy Morshed, Nicoletta Krachmalnicoff, Susanna Azzoni, Toshiya Namikawa","cross_cats":[],"headline":"","license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"astro-ph.CO","submitted_at":"2024-05-02T17:54:28Z","title":"The Simons Observatory: Combining cross-spectral foreground cleaning with multitracer $B$-mode delensing for improved constraints on inflation"},"references":{"count":0,"internal_anchors":0,"resolved_work":0,"sample":[],"snapshot_sha256":"258153158e38e3291e3d48162225fcdb2d5a3ed65a07baac614ab91432fd4f57"},"source":{"id":"2405.01621","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:e88327f8c48192f51b4c18c8b23387fc67f89009ca020dc94742f8d1ba6fc74d","target":"record","created_at":"2026-07-05T09:05:35Z","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":"268678b8829e315a4068ce8503ed77f96d2bedf38affa6715aab602c7118e909","cross_cats_sorted":[],"license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"astro-ph.CO","submitted_at":"2024-05-02T17:54:28Z","title_canon_sha256":"2b1753dd6948883f659e94b2f48244ca43e7236ae5e1d4198525eb9cbd7acada"},"schema_version":"1.0","source":{"id":"2405.01621","kind":"arxiv","version":2}},"canonical_sha256":"07e31c096d5e87fd684678c0c1153b49a90b680d8cb063458e5c98e3608a6a2c","receipt":{"algorithm":"ed25519","builder_version":"pith-number-builder-2026-05-17-v1","canonical_sha256":"07e31c096d5e87fd684678c0c1153b49a90b680d8cb063458e5c98e3608a6a2c","first_computed_at":"2026-07-05T09:05:35.551859Z","key_id":"pith-v1-2026-05","kind":"pith_receipt","last_reissued_at":"2026-07-05T09:05:35.551859Z","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54","receipt_version":"0.3","signature_b64":"paBT5DHUbyviNtJ/rhbu5uJ91pVyfG55+tnGgozRaIcoqi0hInxtrpBmyYZbhxWmbn4kCRDH+vkVj3POV5TABw==","signature_status":"signed_v1","signed_at":"2026-07-05T09:05:35.552360Z","signed_message":"canonical_sha256_bytes"},"source_id":"2405.01621","source_kind":"arxiv","source_version":2}}},"equivocations":[],"invalid_events":[],"applied_event_ids":["sha256:e88327f8c48192f51b4c18c8b23387fc67f89009ca020dc94742f8d1ba6fc74d","sha256:2af48264bf240cc0d3c125082c0da82fd04cb0d671d6dc147ce0d035f563e2a9"],"state_sha256":"7c387261b26ddb3c4ad5f78665e41df821007e5530a1db18b1a5490d58113fcb"},"bundle_signature":{"signature_status":"signed_v1","algorithm":"ed25519","key_id":"pith-v1-2026-05","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54","signature_b64":"Pg8KQazz2d69Q/4lhMCsOh/pqgEHBxH9RLeum/P3PbjL/2UeLRyOXgTflYoZjiMatTR4hFHMMIpwe5vFCmDbCA==","signed_message":"bundle_sha256_bytes","signed_at":"2026-07-07T08:05:05.336234Z","bundle_sha256":"11ad8b29839fccce90efcedef1c498a872809b3636262b8cba995094eac0f89c"}}