{"bundle_type":"pith_open_graph_bundle","bundle_version":"1.0","pith_number":"pith:2019:TCJCI7XBMVPA4T3BFRMIAEX2Q5","short_pith_number":"pith:TCJCI7XB","canonical_record":{"source":{"id":"1908.08128","kind":"arxiv","version":1},"metadata":{"license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"astro-ph.CO","submitted_at":"2019-08-21T22:01:14Z","cross_cats_sorted":[],"title_canon_sha256":"f15a032cdf7fe1329211a532b1e83f09350c2915d5fa7074986751f64272f6de","abstract_canon_sha256":"a305e044225ee73be699ca8b6fe7eb8b0c54e30cb8996b307963da86184bad60"},"schema_version":"1.0"},"canonical_sha256":"9892247ee1655e0e4f612c588012fa877960ac13b843b8d72fada9d9b4b15d0f","source":{"kind":"arxiv","id":"1908.08128","version":1},"source_aliases":[{"alias_kind":"arxiv","alias_value":"1908.08128","created_at":"2026-07-04T23:59:09Z"},{"alias_kind":"arxiv_version","alias_value":"1908.08128v1","created_at":"2026-07-04T23:59:09Z"},{"alias_kind":"doi","alias_value":"10.48550/arxiv.1908.08128","created_at":"2026-07-04T23:59:09Z"},{"alias_kind":"pith_short_12","alias_value":"TCJCI7XBMVPA","created_at":"2026-07-04T23:59:09Z"},{"alias_kind":"pith_short_16","alias_value":"TCJCI7XBMVPA4T3B","created_at":"2026-07-04T23:59:09Z"},{"alias_kind":"pith_short_8","alias_value":"TCJCI7XB","created_at":"2026-07-04T23:59:09Z"}],"events":[{"event_type":"record_created","subject_pith_number":"pith:2019:TCJCI7XBMVPA4T3BFRMIAEX2Q5","target":"record","payload":{"canonical_record":{"source":{"id":"1908.08128","kind":"arxiv","version":1},"metadata":{"license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"astro-ph.CO","submitted_at":"2019-08-21T22:01:14Z","cross_cats_sorted":[],"title_canon_sha256":"f15a032cdf7fe1329211a532b1e83f09350c2915d5fa7074986751f64272f6de","abstract_canon_sha256":"a305e044225ee73be699ca8b6fe7eb8b0c54e30cb8996b307963da86184bad60"},"schema_version":"1.0"},"canonical_sha256":"9892247ee1655e0e4f612c588012fa877960ac13b843b8d72fada9d9b4b15d0f","receipt":{"kind":"pith_receipt","key_id":"pith-v1-2026-05","algorithm":"ed25519","signed_at":"2026-07-04T23:59:09.869172Z","signature_b64":"Jtv09pMIj9EiURiGu8KSI2hhKD5JYwm+fD+rahBEdXRevoSESbU1Yb1FvRtvcDAWQDVkGBKQNCvXiew7RDw7AA==","signed_message":"canonical_sha256_bytes","builder_version":"pith-number-builder-2026-05-17-v1","receipt_version":"0.3","canonical_sha256":"9892247ee1655e0e4f612c588012fa877960ac13b843b8d72fada9d9b4b15d0f","last_reissued_at":"2026-07-04T23:59:09.868707Z","signature_status":"signed_v1","first_computed_at":"2026-07-04T23:59:09.868707Z","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54"},"source_kind":"arxiv","source_id":"1908.08128","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":"2026-07-04T23:59:09Z","supersedes":[],"prev_event":null,"signature":{"signature_status":"signed_v1","algorithm":"ed25519","key_id":"pith-v1-2026-05","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54","signature_b64":"OrCAvmoU/AGgYsThccyHhDP8H/NwDTy3mbmLhE7+xSAK+cqHDAxoIZXLnNtL/TYLUSLkXq9bFrYUIOg02PRuDA==","signed_message":"open_graph_event_sha256_bytes","signed_at":"2026-08-15T04:15:09.259747Z"},"content_sha256":"5b2a77bb8b82df19940e9a27353613689a0a3de84c4faf6947c4e966fa75f131","schema_version":"1.0","event_id":"sha256:5b2a77bb8b82df19940e9a27353613689a0a3de84c4faf6947c4e966fa75f131"},{"event_type":"graph_snapshot","subject_pith_number":"pith:2019:TCJCI7XBMVPA4T3BFRMIAEX2Q5","target":"graph","payload":{"graph_snapshot":{"paper":{"title":"Delensing Degree-Scale $B$-Mode Polarization with High-Redshift Line Intensity Mapping","license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","headline":"","cross_cats":[],"primary_cat":"astro-ph.CO","authors_text":"Kirit S. Karkare","submitted_at":"2019-08-21T22:01:14Z","abstract_excerpt":"Cosmic microwave background (CMB) experiments that constrain the tensor-to-scalar ratio $r$ are now approaching the sensitivity at which delensing---removing the $B$ modes induced by the gravitational lensing of large-scale structure---is necessary. We consider the improvement in delensing that maps of large-scale structure from tomographic line intensity mapping (IM) experiments targeting $2 < z < 10$ could provide. Compared to a nominal baseline of cosmic infrared background and internal delensing at CMB-S4 sensitivity, we find that the addition of high-redshift IM data could improve delensi"},"claims":{"count":0,"items":[],"snapshot_sha256":"258153158e38e3291e3d48162225fcdb2d5a3ed65a07baac614ab91432fd4f57"},"source":{"id":"1908.08128","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/1908.08128/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":"2026-07-04T23:59:09Z","supersedes":[],"prev_event":null,"signature":{"signature_status":"signed_v1","algorithm":"ed25519","key_id":"pith-v1-2026-05","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54","signature_b64":"UsK5stWWMQyTI9K+3qf8Eg1Sv4IaJbTocrdnDY1QetF+t8OYBl4787/HoSDEx1BsQlGQTLkycwmePjNYTFwpAw==","signed_message":"open_graph_event_sha256_bytes","signed_at":"2026-08-15T04:15:09.260637Z"},"content_sha256":"fcf5c99401ce961e0ba0417d1a4e920a04ad660145a6f79b7302b414d835934c","schema_version":"1.0","event_id":"sha256:fcf5c99401ce961e0ba0417d1a4e920a04ad660145a6f79b7302b414d835934c"}],"timestamp_proofs":[],"mirror_hints":[{"mirror_type":"https","name":"Pith Resolver","base_url":"https://pith.science","bundle_url":"https://pith.science/pith/TCJCI7XBMVPA4T3BFRMIAEX2Q5/bundle.json","state_url":"https://pith.science/pith/TCJCI7XBMVPA4T3BFRMIAEX2Q5/state.json","well_known_bundle_url":"https://pith.science/.well-known/pith/TCJCI7XBMVPA4T3BFRMIAEX2Q5/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":"2026-08-15T04:15:09Z","links":{"resolver":"https://pith.science/pith/TCJCI7XBMVPA4T3BFRMIAEX2Q5","bundle":"https://pith.science/pith/TCJCI7XBMVPA4T3BFRMIAEX2Q5/bundle.json","state":"https://pith.science/pith/TCJCI7XBMVPA4T3BFRMIAEX2Q5/state.json","well_known_bundle":"https://pith.science/.well-known/pith/TCJCI7XBMVPA4T3BFRMIAEX2Q5/bundle.json"},"state":{"state_type":"pith_open_graph_state","state_version":"1.0","pith_number":"pith:2019:TCJCI7XBMVPA4T3BFRMIAEX2Q5","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":"a305e044225ee73be699ca8b6fe7eb8b0c54e30cb8996b307963da86184bad60","cross_cats_sorted":[],"license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"astro-ph.CO","submitted_at":"2019-08-21T22:01:14Z","title_canon_sha256":"f15a032cdf7fe1329211a532b1e83f09350c2915d5fa7074986751f64272f6de"},"schema_version":"1.0","source":{"id":"1908.08128","kind":"arxiv","version":1}},"source_aliases":[{"alias_kind":"arxiv","alias_value":"1908.08128","created_at":"2026-07-04T23:59:09Z"},{"alias_kind":"arxiv_version","alias_value":"1908.08128v1","created_at":"2026-07-04T23:59:09Z"},{"alias_kind":"doi","alias_value":"10.48550/arxiv.1908.08128","created_at":"2026-07-04T23:59:09Z"},{"alias_kind":"pith_short_12","alias_value":"TCJCI7XBMVPA","created_at":"2026-07-04T23:59:09Z"},{"alias_kind":"pith_short_16","alias_value":"TCJCI7XBMVPA4T3B","created_at":"2026-07-04T23:59:09Z"},{"alias_kind":"pith_short_8","alias_value":"TCJCI7XB","created_at":"2026-07-04T23:59:09Z"}],"graph_snapshots":[{"event_id":"sha256:fcf5c99401ce961e0ba0417d1a4e920a04ad660145a6f79b7302b414d835934c","target":"graph","created_at":"2026-07-04T23:59:09Z","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/1908.08128/integrity.json","findings":[],"snapshot_sha256":"c28c3603d3b5d939e8dc4c7e95fa8dfce3d595e45f758748cecf8e644a296938","summary":{"advisory":0,"by_detector":{},"critical":0,"informational":0}},"paper":{"abstract_excerpt":"Cosmic microwave background (CMB) experiments that constrain the tensor-to-scalar ratio $r$ are now approaching the sensitivity at which delensing---removing the $B$ modes induced by the gravitational lensing of large-scale structure---is necessary. We consider the improvement in delensing that maps of large-scale structure from tomographic line intensity mapping (IM) experiments targeting $2 < z < 10$ could provide. Compared to a nominal baseline of cosmic infrared background and internal delensing at CMB-S4 sensitivity, we find that the addition of high-redshift IM data could improve delensi","authors_text":"Kirit S. Karkare","cross_cats":[],"headline":"","license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"astro-ph.CO","submitted_at":"2019-08-21T22:01:14Z","title":"Delensing Degree-Scale $B$-Mode Polarization with High-Redshift Line Intensity Mapping"},"references":{"count":0,"internal_anchors":0,"resolved_work":0,"sample":[],"snapshot_sha256":"258153158e38e3291e3d48162225fcdb2d5a3ed65a07baac614ab91432fd4f57"},"source":{"id":"1908.08128","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":"sha256:5b2a77bb8b82df19940e9a27353613689a0a3de84c4faf6947c4e966fa75f131","target":"record","created_at":"2026-07-04T23:59:09Z","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":"a305e044225ee73be699ca8b6fe7eb8b0c54e30cb8996b307963da86184bad60","cross_cats_sorted":[],"license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"astro-ph.CO","submitted_at":"2019-08-21T22:01:14Z","title_canon_sha256":"f15a032cdf7fe1329211a532b1e83f09350c2915d5fa7074986751f64272f6de"},"schema_version":"1.0","source":{"id":"1908.08128","kind":"arxiv","version":1}},"canonical_sha256":"9892247ee1655e0e4f612c588012fa877960ac13b843b8d72fada9d9b4b15d0f","receipt":{"algorithm":"ed25519","builder_version":"pith-number-builder-2026-05-17-v1","canonical_sha256":"9892247ee1655e0e4f612c588012fa877960ac13b843b8d72fada9d9b4b15d0f","first_computed_at":"2026-07-04T23:59:09.868707Z","key_id":"pith-v1-2026-05","kind":"pith_receipt","last_reissued_at":"2026-07-04T23:59:09.868707Z","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54","receipt_version":"0.3","signature_b64":"Jtv09pMIj9EiURiGu8KSI2hhKD5JYwm+fD+rahBEdXRevoSESbU1Yb1FvRtvcDAWQDVkGBKQNCvXiew7RDw7AA==","signature_status":"signed_v1","signed_at":"2026-07-04T23:59:09.869172Z","signed_message":"canonical_sha256_bytes"},"source_id":"1908.08128","source_kind":"arxiv","source_version":1}}},"equivocations":[],"invalid_events":[],"applied_event_ids":["sha256:5b2a77bb8b82df19940e9a27353613689a0a3de84c4faf6947c4e966fa75f131","sha256:fcf5c99401ce961e0ba0417d1a4e920a04ad660145a6f79b7302b414d835934c"],"state_sha256":"1810d2fc466fe7310c78cd65e637c581e2247df9130bc80212163c91dbafc432"},"bundle_signature":{"signature_status":"signed_v1","algorithm":"ed25519","key_id":"pith-v1-2026-05","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54","signature_b64":"r1etlrWVfG4dujk3WenZg3Q+3wPrfchn6pYFwqOUKa45o8Wm48FjmJRlda8QWw4khFd1WJrXyA+CL2MQ7+PaAw==","signed_message":"bundle_sha256_bytes","signed_at":"2026-08-15T04:15:09.267888Z","bundle_sha256":"ef95eb2dd81f94cc854b91d61e2594665dbbdb15cc99ee8d47bc01cde40d7a37"}}