{"bundle_type":"pith_open_graph_bundle","bundle_version":"1.0","pith_number":"pith:2020:RB3OEVWWGSC4FAD6EKS5TRTAPS","short_pith_number":"pith:RB3OEVWW","canonical_record":{"source":{"id":"2011.12313","kind":"arxiv","version":1},"metadata":{"license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"astro-ph.GA","submitted_at":"2020-11-24T19:00:06Z","cross_cats_sorted":[],"title_canon_sha256":"ba923c17d2c2afca33cccb79b81173ad2132ea2fcc82353ae31f269476b7c923","abstract_canon_sha256":"1d3ed91c202884b556386efa3578be4b706cb20f20061a33c1e6bbcef74922d8"},"schema_version":"1.0"},"canonical_sha256":"8876e256d63485c2807e22a5d9c6607c8ca0b706f250e0668d46f31a20d045b9","source":{"kind":"arxiv","id":"2011.12313","version":1},"source_aliases":[{"alias_kind":"arxiv","alias_value":"2011.12313","created_at":"2026-07-05T02:13:55Z"},{"alias_kind":"arxiv_version","alias_value":"2011.12313v1","created_at":"2026-07-05T02:13:55Z"},{"alias_kind":"doi","alias_value":"10.48550/arxiv.2011.12313","created_at":"2026-07-05T02:13:55Z"},{"alias_kind":"pith_short_12","alias_value":"RB3OEVWWGSC4","created_at":"2026-07-05T02:13:55Z"},{"alias_kind":"pith_short_16","alias_value":"RB3OEVWWGSC4FAD6","created_at":"2026-07-05T02:13:55Z"},{"alias_kind":"pith_short_8","alias_value":"RB3OEVWW","created_at":"2026-07-05T02:13:55Z"}],"events":[{"event_type":"record_created","subject_pith_number":"pith:2020:RB3OEVWWGSC4FAD6EKS5TRTAPS","target":"record","payload":{"canonical_record":{"source":{"id":"2011.12313","kind":"arxiv","version":1},"metadata":{"license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"astro-ph.GA","submitted_at":"2020-11-24T19:00:06Z","cross_cats_sorted":[],"title_canon_sha256":"ba923c17d2c2afca33cccb79b81173ad2132ea2fcc82353ae31f269476b7c923","abstract_canon_sha256":"1d3ed91c202884b556386efa3578be4b706cb20f20061a33c1e6bbcef74922d8"},"schema_version":"1.0"},"canonical_sha256":"8876e256d63485c2807e22a5d9c6607c8ca0b706f250e0668d46f31a20d045b9","receipt":{"kind":"pith_receipt","key_id":"pith-v1-2026-05","algorithm":"ed25519","signed_at":"2026-07-05T02:13:55.289191Z","signature_b64":"eJhM+jCOqdHVHu+1QnUcumozyMFlXRteKMZzFmNd2pfLSn2Y8uHljlz9NCicBEOdY8F66rXrqb+4XeFOClnfCw==","signed_message":"canonical_sha256_bytes","builder_version":"pith-number-builder-2026-05-17-v1","receipt_version":"0.3","canonical_sha256":"8876e256d63485c2807e22a5d9c6607c8ca0b706f250e0668d46f31a20d045b9","last_reissued_at":"2026-07-05T02:13:55.288757Z","signature_status":"signed_v1","first_computed_at":"2026-07-05T02:13:55.288757Z","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54"},"source_kind":"arxiv","source_id":"2011.12313","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":"2026-07-05T02:13:55Z","supersedes":[],"prev_event":null,"signature":{"signature_status":"signed_v1","algorithm":"ed25519","key_id":"pith-v1-2026-05","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54","signature_b64":"ntR/AMvtJU4B7yccVx+4Fl9Wma54CMItR65mCyNp458b4VNKsntu9JDHYMoNed0qNniJVCRgdH9aa0P72oyfDA==","signed_message":"open_graph_event_sha256_bytes","signed_at":"2026-07-06T16:23:39.235485Z"},"content_sha256":"fd8be52bc8e5f9448a0fbb1a09a2b86ed699dcb14d2852edae8a59c9834f1cde","schema_version":"1.0","event_id":"sha256:fd8be52bc8e5f9448a0fbb1a09a2b86ed699dcb14d2852edae8a59c9834f1cde"},{"event_type":"graph_snapshot","subject_pith_number":"pith:2020:RB3OEVWWGSC4FAD6EKS5TRTAPS","target":"graph","payload":{"graph_snapshot":{"paper":{"title":"The High-Redshift Clusters Occupied by Bent Radio AGN (COBRA) Survey: Radio Source Properties","license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","headline":"","cross_cats":[],"primary_cat":"astro-ph.GA","authors_text":"Adam Tomczak, Brian Lemaux, Elizabeth Blanton, Emily Moravec, Emmet Golden-Marx, Lori Lubin, Lu Shen, Mark Brodwin, Matt Ashby, Rachel-Paterno-Mahler, Roy Gal","submitted_at":"2020-11-24T19:00:06Z","abstract_excerpt":"The shape of bent, double-lobed radio sources requires a dense gaseous medium. Bent sources can therefore be used to identify galaxy clusters and characterize their evolutionary history. By combining radio observations from the Very Large Array Faint Images of the Radio Sky at Twenty centimeters (VLA FIRST) survey with optical and infrared imaging of 36 red sequence selected cluster candidates from the high-z Clusters Occupied by Bent Radio AGN (COBRA) survey (0.35 < z < 2.2), we find that radio sources with narrower opening angles reside in richer clusters, indicating that the cluster environ"},"claims":{"count":0,"items":[],"snapshot_sha256":"258153158e38e3291e3d48162225fcdb2d5a3ed65a07baac614ab91432fd4f57"},"source":{"id":"2011.12313","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/2011.12313/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":"2026-07-05T02:13:55Z","supersedes":[],"prev_event":null,"signature":{"signature_status":"signed_v1","algorithm":"ed25519","key_id":"pith-v1-2026-05","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54","signature_b64":"HzmueJzHNFrfSy/f57aab6dML7YXz0+MWTpIaKAV4dT7n7W+R2E7Hjjq7xCKnmilqXBOy5UYU0pk9MTlHba9Dw==","signed_message":"open_graph_event_sha256_bytes","signed_at":"2026-07-06T16:23:39.235878Z"},"content_sha256":"1ebf64a395808afd422aaa792f094b2720740262cf1c685bc4752ef4e8d5f97c","schema_version":"1.0","event_id":"sha256:1ebf64a395808afd422aaa792f094b2720740262cf1c685bc4752ef4e8d5f97c"}],"timestamp_proofs":[],"mirror_hints":[{"mirror_type":"https","name":"Pith Resolver","base_url":"https://pith.science","bundle_url":"https://pith.science/pith/RB3OEVWWGSC4FAD6EKS5TRTAPS/bundle.json","state_url":"https://pith.science/pith/RB3OEVWWGSC4FAD6EKS5TRTAPS/state.json","well_known_bundle_url":"https://pith.science/.well-known/pith/RB3OEVWWGSC4FAD6EKS5TRTAPS/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":"2026-07-06T16:23:39Z","links":{"resolver":"https://pith.science/pith/RB3OEVWWGSC4FAD6EKS5TRTAPS","bundle":"https://pith.science/pith/RB3OEVWWGSC4FAD6EKS5TRTAPS/bundle.json","state":"https://pith.science/pith/RB3OEVWWGSC4FAD6EKS5TRTAPS/state.json","well_known_bundle":"https://pith.science/.well-known/pith/RB3OEVWWGSC4FAD6EKS5TRTAPS/bundle.json"},"state":{"state_type":"pith_open_graph_state","state_version":"1.0","pith_number":"pith:2020:RB3OEVWWGSC4FAD6EKS5TRTAPS","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":"1d3ed91c202884b556386efa3578be4b706cb20f20061a33c1e6bbcef74922d8","cross_cats_sorted":[],"license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"astro-ph.GA","submitted_at":"2020-11-24T19:00:06Z","title_canon_sha256":"ba923c17d2c2afca33cccb79b81173ad2132ea2fcc82353ae31f269476b7c923"},"schema_version":"1.0","source":{"id":"2011.12313","kind":"arxiv","version":1}},"source_aliases":[{"alias_kind":"arxiv","alias_value":"2011.12313","created_at":"2026-07-05T02:13:55Z"},{"alias_kind":"arxiv_version","alias_value":"2011.12313v1","created_at":"2026-07-05T02:13:55Z"},{"alias_kind":"doi","alias_value":"10.48550/arxiv.2011.12313","created_at":"2026-07-05T02:13:55Z"},{"alias_kind":"pith_short_12","alias_value":"RB3OEVWWGSC4","created_at":"2026-07-05T02:13:55Z"},{"alias_kind":"pith_short_16","alias_value":"RB3OEVWWGSC4FAD6","created_at":"2026-07-05T02:13:55Z"},{"alias_kind":"pith_short_8","alias_value":"RB3OEVWW","created_at":"2026-07-05T02:13:55Z"}],"graph_snapshots":[{"event_id":"sha256:1ebf64a395808afd422aaa792f094b2720740262cf1c685bc4752ef4e8d5f97c","target":"graph","created_at":"2026-07-05T02:13:55Z","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/2011.12313/integrity.json","findings":[],"snapshot_sha256":"c28c3603d3b5d939e8dc4c7e95fa8dfce3d595e45f758748cecf8e644a296938","summary":{"advisory":0,"by_detector":{},"critical":0,"informational":0}},"paper":{"abstract_excerpt":"The shape of bent, double-lobed radio sources requires a dense gaseous medium. Bent sources can therefore be used to identify galaxy clusters and characterize their evolutionary history. By combining radio observations from the Very Large Array Faint Images of the Radio Sky at Twenty centimeters (VLA FIRST) survey with optical and infrared imaging of 36 red sequence selected cluster candidates from the high-z Clusters Occupied by Bent Radio AGN (COBRA) survey (0.35 < z < 2.2), we find that radio sources with narrower opening angles reside in richer clusters, indicating that the cluster environ","authors_text":"Adam Tomczak, Brian Lemaux, Elizabeth Blanton, Emily Moravec, Emmet Golden-Marx, Lori Lubin, Lu Shen, Mark Brodwin, Matt Ashby, Rachel-Paterno-Mahler, Roy Gal","cross_cats":[],"headline":"","license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"astro-ph.GA","submitted_at":"2020-11-24T19:00:06Z","title":"The High-Redshift Clusters Occupied by Bent Radio AGN (COBRA) Survey: Radio Source Properties"},"references":{"count":0,"internal_anchors":0,"resolved_work":0,"sample":[],"snapshot_sha256":"258153158e38e3291e3d48162225fcdb2d5a3ed65a07baac614ab91432fd4f57"},"source":{"id":"2011.12313","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:fd8be52bc8e5f9448a0fbb1a09a2b86ed699dcb14d2852edae8a59c9834f1cde","target":"record","created_at":"2026-07-05T02:13:55Z","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":"1d3ed91c202884b556386efa3578be4b706cb20f20061a33c1e6bbcef74922d8","cross_cats_sorted":[],"license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"astro-ph.GA","submitted_at":"2020-11-24T19:00:06Z","title_canon_sha256":"ba923c17d2c2afca33cccb79b81173ad2132ea2fcc82353ae31f269476b7c923"},"schema_version":"1.0","source":{"id":"2011.12313","kind":"arxiv","version":1}},"canonical_sha256":"8876e256d63485c2807e22a5d9c6607c8ca0b706f250e0668d46f31a20d045b9","receipt":{"algorithm":"ed25519","builder_version":"pith-number-builder-2026-05-17-v1","canonical_sha256":"8876e256d63485c2807e22a5d9c6607c8ca0b706f250e0668d46f31a20d045b9","first_computed_at":"2026-07-05T02:13:55.288757Z","key_id":"pith-v1-2026-05","kind":"pith_receipt","last_reissued_at":"2026-07-05T02:13:55.288757Z","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54","receipt_version":"0.3","signature_b64":"eJhM+jCOqdHVHu+1QnUcumozyMFlXRteKMZzFmNd2pfLSn2Y8uHljlz9NCicBEOdY8F66rXrqb+4XeFOClnfCw==","signature_status":"signed_v1","signed_at":"2026-07-05T02:13:55.289191Z","signed_message":"canonical_sha256_bytes"},"source_id":"2011.12313","source_kind":"arxiv","source_version":1}}},"equivocations":[],"invalid_events":[],"applied_event_ids":["sha256:fd8be52bc8e5f9448a0fbb1a09a2b86ed699dcb14d2852edae8a59c9834f1cde","sha256:1ebf64a395808afd422aaa792f094b2720740262cf1c685bc4752ef4e8d5f97c"],"state_sha256":"501616cf5525e065a631dc78b9b2a6b9183a87411c7a14102599882786bffe9b"},"bundle_signature":{"signature_status":"signed_v1","algorithm":"ed25519","key_id":"pith-v1-2026-05","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54","signature_b64":"K/6OHxBXnGUKs9kp9G30uB3zqn/f9aCNmO51G4nIp1ynrRNryJDfAj3eCqA1PTi1B3H5swLv3odXpMV4DK5nBQ==","signed_message":"bundle_sha256_bytes","signed_at":"2026-07-06T16:23:39.237846Z","bundle_sha256":"73cbf2c6ed41d24de36e37593765d23a7ab05b19d56757e830f178804444d61b"}}