{"bundle_type":"pith_open_graph_bundle","bundle_version":"1.0","pith_number":"pith:2019:WMJUY6CXZZM42UPIPTMRVWTVY3","short_pith_number":"pith:WMJUY6CX","canonical_record":{"source":{"id":"1907.05922","kind":"arxiv","version":1},"metadata":{"license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"astro-ph.CO","submitted_at":"2019-07-12T18:56:31Z","cross_cats_sorted":["astro-ph.GA"],"title_canon_sha256":"f56a75f3bb90c626078f15f1682eda9fce2c031c9b44ce947c90560c17b81af3","abstract_canon_sha256":"f70ed587ce967ae83cefc813bd4daec0e72bd11a1687878611216e960a55b11f"},"schema_version":"1.0"},"canonical_sha256":"b3134c7857ce59cd51e87cd91ada75c6fd4c85cf30c2cf89be65ba9ccc092089","source":{"kind":"arxiv","id":"1907.05922","version":1},"source_aliases":[{"alias_kind":"arxiv","alias_value":"1907.05922","created_at":"2026-07-05T00:01:59Z"},{"alias_kind":"arxiv_version","alias_value":"1907.05922v1","created_at":"2026-07-05T00:01:59Z"},{"alias_kind":"doi","alias_value":"10.48550/arxiv.1907.05922","created_at":"2026-07-05T00:01:59Z"},{"alias_kind":"pith_short_12","alias_value":"WMJUY6CXZZM4","created_at":"2026-07-05T00:01:59Z"},{"alias_kind":"pith_short_16","alias_value":"WMJUY6CXZZM42UPI","created_at":"2026-07-05T00:01:59Z"},{"alias_kind":"pith_short_8","alias_value":"WMJUY6CX","created_at":"2026-07-05T00:01:59Z"}],"events":[{"event_type":"record_created","subject_pith_number":"pith:2019:WMJUY6CXZZM42UPIPTMRVWTVY3","target":"record","payload":{"canonical_record":{"source":{"id":"1907.05922","kind":"arxiv","version":1},"metadata":{"license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"astro-ph.CO","submitted_at":"2019-07-12T18:56:31Z","cross_cats_sorted":["astro-ph.GA"],"title_canon_sha256":"f56a75f3bb90c626078f15f1682eda9fce2c031c9b44ce947c90560c17b81af3","abstract_canon_sha256":"f70ed587ce967ae83cefc813bd4daec0e72bd11a1687878611216e960a55b11f"},"schema_version":"1.0"},"canonical_sha256":"b3134c7857ce59cd51e87cd91ada75c6fd4c85cf30c2cf89be65ba9ccc092089","receipt":{"kind":"pith_receipt","key_id":"pith-v1-2026-05","algorithm":"ed25519","signed_at":"2026-07-05T00:01:59.555514Z","signature_b64":"cM7jBp0OrPKc4/ZafyqrKQAbHRkjJ5gEb71HcG2k88Cy5hPLYBjg6OCSCoKUtq41H8CqMcM0ydEW+e7IHfFABA==","signed_message":"canonical_sha256_bytes","builder_version":"pith-number-builder-2026-05-17-v1","receipt_version":"0.3","canonical_sha256":"b3134c7857ce59cd51e87cd91ada75c6fd4c85cf30c2cf89be65ba9ccc092089","last_reissued_at":"2026-07-05T00:01:59.555108Z","signature_status":"signed_v1","first_computed_at":"2026-07-05T00:01:59.555108Z","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54"},"source_kind":"arxiv","source_id":"1907.05922","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":"2026-07-05T00:01:59Z","supersedes":[],"prev_event":null,"signature":{"signature_status":"signed_v1","algorithm":"ed25519","key_id":"pith-v1-2026-05","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54","signature_b64":"Jk3iQukzJmAQzCRcjXP8WFdUO1pfaPzJj6SYtWnX716E5B7wOCjXoCU/FqNAAr80WN23vKq0H1aQ/u8HzHXgBA==","signed_message":"open_graph_event_sha256_bytes","signed_at":"2026-08-04T03:32:05.526077Z"},"content_sha256":"29ff2e656721c55f20a797a83a625e06a7982fc75ee2b8706acbd0c77db292f8","schema_version":"1.0","event_id":"sha256:29ff2e656721c55f20a797a83a625e06a7982fc75ee2b8706acbd0c77db292f8"},{"event_type":"graph_snapshot","subject_pith_number":"pith:2019:WMJUY6CXZZM42UPIPTMRVWTVY3","target":"graph","payload":{"graph_snapshot":{"paper":{"title":"The Carnegie-Chicago Hubble Program. VIII. An Independent Determination of the Hubble Constant Based on the Tip of the Red Giant Branch","license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","headline":"","cross_cats":["astro-ph.GA"],"primary_cat":"astro-ph.CO","authors_text":"Andrew J. Monson, Barry F. Madore, Christopher R. Burns, Dylan Hatt, In-Sung Jang, Jeffrey A. Rich, Jillian R. Neeley, Mark M. Phillips, Mark Seibert, Myung Gyoon Lee, Rachael L. Beaton, Taylor J. Hoyt, Wendy L. Freedman","submitted_at":"2019-07-12T18:56:31Z","abstract_excerpt":"We present a new and independent determination of the local value of the Hubble constant based on a calibration of the Tip of the Red Giant Branch (TRGB) applied to Type Ia supernovae (SNeIa). We find a value of Ho = 69.8 +/- 0.8 (+/-1.1\\% stat) +/- 1.7 (+/-2.4\\% sys) km/sec/Mpc. The TRGB method is both precise and accurate, and is parallel to, but independent of the Cepheid distance scale. Our value sits midway in the range defined by the current Hubble tension. It agrees at the 1.2-sigma level with that of the Planck 2018 estimate, and at the 1.7-sigma level with the SHoES measurement of Ho "},"claims":{"count":0,"items":[],"snapshot_sha256":"258153158e38e3291e3d48162225fcdb2d5a3ed65a07baac614ab91432fd4f57"},"source":{"id":"1907.05922","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/1907.05922/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":"2026-07-05T00:01:59Z","supersedes":[],"prev_event":null,"signature":{"signature_status":"signed_v1","algorithm":"ed25519","key_id":"pith-v1-2026-05","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54","signature_b64":"EKwSRxCFymD30nW0Wy/FXo0eEZAe11PyqRwVSlttHTrcQnSkaAtyhRQKkZEMC2thLWQdhH11mjLWBbN2u7ynAQ==","signed_message":"open_graph_event_sha256_bytes","signed_at":"2026-08-04T03:32:05.526589Z"},"content_sha256":"849eb36da2df709a34239c123ca7fe489441a9147363f2da7b4e609b9e381905","schema_version":"1.0","event_id":"sha256:849eb36da2df709a34239c123ca7fe489441a9147363f2da7b4e609b9e381905"}],"timestamp_proofs":[],"mirror_hints":[{"mirror_type":"https","name":"Pith Resolver","base_url":"https://pith.science","bundle_url":"https://pith.science/pith/WMJUY6CXZZM42UPIPTMRVWTVY3/bundle.json","state_url":"https://pith.science/pith/WMJUY6CXZZM42UPIPTMRVWTVY3/state.json","well_known_bundle_url":"https://pith.science/.well-known/pith/WMJUY6CXZZM42UPIPTMRVWTVY3/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":"2026-08-04T03:32:05Z","links":{"resolver":"https://pith.science/pith/WMJUY6CXZZM42UPIPTMRVWTVY3","bundle":"https://pith.science/pith/WMJUY6CXZZM42UPIPTMRVWTVY3/bundle.json","state":"https://pith.science/pith/WMJUY6CXZZM42UPIPTMRVWTVY3/state.json","well_known_bundle":"https://pith.science/.well-known/pith/WMJUY6CXZZM42UPIPTMRVWTVY3/bundle.json"},"state":{"state_type":"pith_open_graph_state","state_version":"1.0","pith_number":"pith:2019:WMJUY6CXZZM42UPIPTMRVWTVY3","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":"f70ed587ce967ae83cefc813bd4daec0e72bd11a1687878611216e960a55b11f","cross_cats_sorted":["astro-ph.GA"],"license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"astro-ph.CO","submitted_at":"2019-07-12T18:56:31Z","title_canon_sha256":"f56a75f3bb90c626078f15f1682eda9fce2c031c9b44ce947c90560c17b81af3"},"schema_version":"1.0","source":{"id":"1907.05922","kind":"arxiv","version":1}},"source_aliases":[{"alias_kind":"arxiv","alias_value":"1907.05922","created_at":"2026-07-05T00:01:59Z"},{"alias_kind":"arxiv_version","alias_value":"1907.05922v1","created_at":"2026-07-05T00:01:59Z"},{"alias_kind":"doi","alias_value":"10.48550/arxiv.1907.05922","created_at":"2026-07-05T00:01:59Z"},{"alias_kind":"pith_short_12","alias_value":"WMJUY6CXZZM4","created_at":"2026-07-05T00:01:59Z"},{"alias_kind":"pith_short_16","alias_value":"WMJUY6CXZZM42UPI","created_at":"2026-07-05T00:01:59Z"},{"alias_kind":"pith_short_8","alias_value":"WMJUY6CX","created_at":"2026-07-05T00:01:59Z"}],"graph_snapshots":[{"event_id":"sha256:849eb36da2df709a34239c123ca7fe489441a9147363f2da7b4e609b9e381905","target":"graph","created_at":"2026-07-05T00:01:59Z","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/1907.05922/integrity.json","findings":[],"snapshot_sha256":"c28c3603d3b5d939e8dc4c7e95fa8dfce3d595e45f758748cecf8e644a296938","summary":{"advisory":0,"by_detector":{},"critical":0,"informational":0}},"paper":{"abstract_excerpt":"We present a new and independent determination of the local value of the Hubble constant based on a calibration of the Tip of the Red Giant Branch (TRGB) applied to Type Ia supernovae (SNeIa). We find a value of Ho = 69.8 +/- 0.8 (+/-1.1\\% stat) +/- 1.7 (+/-2.4\\% sys) km/sec/Mpc. The TRGB method is both precise and accurate, and is parallel to, but independent of the Cepheid distance scale. Our value sits midway in the range defined by the current Hubble tension. It agrees at the 1.2-sigma level with that of the Planck 2018 estimate, and at the 1.7-sigma level with the SHoES measurement of Ho ","authors_text":"Andrew J. Monson, Barry F. Madore, Christopher R. Burns, Dylan Hatt, In-Sung Jang, Jeffrey A. Rich, Jillian R. Neeley, Mark M. Phillips, Mark Seibert, Myung Gyoon Lee, Rachael L. Beaton, Taylor J. Hoyt, Wendy L. Freedman","cross_cats":["astro-ph.GA"],"headline":"","license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"astro-ph.CO","submitted_at":"2019-07-12T18:56:31Z","title":"The Carnegie-Chicago Hubble Program. VIII. An Independent Determination of the Hubble Constant Based on the Tip of the Red Giant Branch"},"references":{"count":0,"internal_anchors":0,"resolved_work":0,"sample":[],"snapshot_sha256":"258153158e38e3291e3d48162225fcdb2d5a3ed65a07baac614ab91432fd4f57"},"source":{"id":"1907.05922","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":"sha256:29ff2e656721c55f20a797a83a625e06a7982fc75ee2b8706acbd0c77db292f8","target":"record","created_at":"2026-07-05T00:01:59Z","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":"f70ed587ce967ae83cefc813bd4daec0e72bd11a1687878611216e960a55b11f","cross_cats_sorted":["astro-ph.GA"],"license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"astro-ph.CO","submitted_at":"2019-07-12T18:56:31Z","title_canon_sha256":"f56a75f3bb90c626078f15f1682eda9fce2c031c9b44ce947c90560c17b81af3"},"schema_version":"1.0","source":{"id":"1907.05922","kind":"arxiv","version":1}},"canonical_sha256":"b3134c7857ce59cd51e87cd91ada75c6fd4c85cf30c2cf89be65ba9ccc092089","receipt":{"algorithm":"ed25519","builder_version":"pith-number-builder-2026-05-17-v1","canonical_sha256":"b3134c7857ce59cd51e87cd91ada75c6fd4c85cf30c2cf89be65ba9ccc092089","first_computed_at":"2026-07-05T00:01:59.555108Z","key_id":"pith-v1-2026-05","kind":"pith_receipt","last_reissued_at":"2026-07-05T00:01:59.555108Z","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54","receipt_version":"0.3","signature_b64":"cM7jBp0OrPKc4/ZafyqrKQAbHRkjJ5gEb71HcG2k88Cy5hPLYBjg6OCSCoKUtq41H8CqMcM0ydEW+e7IHfFABA==","signature_status":"signed_v1","signed_at":"2026-07-05T00:01:59.555514Z","signed_message":"canonical_sha256_bytes"},"source_id":"1907.05922","source_kind":"arxiv","source_version":1}}},"equivocations":[],"invalid_events":[],"applied_event_ids":["sha256:29ff2e656721c55f20a797a83a625e06a7982fc75ee2b8706acbd0c77db292f8","sha256:849eb36da2df709a34239c123ca7fe489441a9147363f2da7b4e609b9e381905"],"state_sha256":"1750a7108df635a629ecab60fa19fc74ace29fa3ee610fa5ac0430a238f35205"},"bundle_signature":{"signature_status":"signed_v1","algorithm":"ed25519","key_id":"pith-v1-2026-05","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54","signature_b64":"2XyYKjhMgeph96XJMKiOLrakRIj3KjS8E9FtVm5gDC1xE/i3BE0rU4Hm4JkHr+fkTA6cyn9EpzjpbnNTQXdXAg==","signed_message":"bundle_sha256_bytes","signed_at":"2026-08-04T03:32:05.530157Z","bundle_sha256":"f16d6091e42abd78f67101d15cf93c93aef04a068dc81009feecbd13cfdc7d2c"}}