{"bundle_type":"pith_open_graph_bundle","bundle_version":"1.0","pith_number":"pith:2021:3HRNOOS2UXDCBXFKTARQPGBKGO","short_pith_number":"pith:3HRNOOS2","canonical_record":{"source":{"id":"2101.05305","kind":"arxiv","version":1},"metadata":{"license":"http://creativecommons.org/licenses/by-nc-nd/4.0/","primary_cat":"astro-ph.GA","submitted_at":"2021-01-13T19:03:04Z","cross_cats_sorted":[],"title_canon_sha256":"442fae1513853947cdf3fd819566700e8a314aec2ba2bd3d06923ea0901b9f26","abstract_canon_sha256":"6d2d87afe6360c28ade5a49f546586860658094c1ff8b8781393806ce99672e0"},"schema_version":"1.0"},"canonical_sha256":"d9e2d73a5aa5c620dcaa982307982a338028a4c01f05bbbf86afe5a9d93b9dfe","source":{"kind":"arxiv","id":"2101.05305","version":1},"source_aliases":[{"alias_kind":"arxiv","alias_value":"2101.05305","created_at":"2026-07-05T02:33:27Z"},{"alias_kind":"arxiv_version","alias_value":"2101.05305v1","created_at":"2026-07-05T02:33:27Z"},{"alias_kind":"doi","alias_value":"10.48550/arxiv.2101.05305","created_at":"2026-07-05T02:33:27Z"},{"alias_kind":"pith_short_12","alias_value":"3HRNOOS2UXDC","created_at":"2026-07-05T02:33:27Z"},{"alias_kind":"pith_short_16","alias_value":"3HRNOOS2UXDCBXFK","created_at":"2026-07-05T02:33:27Z"},{"alias_kind":"pith_short_8","alias_value":"3HRNOOS2","created_at":"2026-07-05T02:33:27Z"}],"events":[{"event_type":"record_created","subject_pith_number":"pith:2021:3HRNOOS2UXDCBXFKTARQPGBKGO","target":"record","payload":{"canonical_record":{"source":{"id":"2101.05305","kind":"arxiv","version":1},"metadata":{"license":"http://creativecommons.org/licenses/by-nc-nd/4.0/","primary_cat":"astro-ph.GA","submitted_at":"2021-01-13T19:03:04Z","cross_cats_sorted":[],"title_canon_sha256":"442fae1513853947cdf3fd819566700e8a314aec2ba2bd3d06923ea0901b9f26","abstract_canon_sha256":"6d2d87afe6360c28ade5a49f546586860658094c1ff8b8781393806ce99672e0"},"schema_version":"1.0"},"canonical_sha256":"d9e2d73a5aa5c620dcaa982307982a338028a4c01f05bbbf86afe5a9d93b9dfe","receipt":{"kind":"pith_receipt","key_id":"pith-v1-2026-05","algorithm":"ed25519","signed_at":"2026-07-05T02:33:27.044950Z","signature_b64":"d5biPtWPIr7KnvaGAgdc1yIBrWvKJBEDZJDHoXoWikD6Cgf7Bec/thmga2f77Rw0ZQ3kCColLWr2TviPK4/EDw==","signed_message":"canonical_sha256_bytes","builder_version":"pith-number-builder-2026-05-17-v1","receipt_version":"0.3","canonical_sha256":"d9e2d73a5aa5c620dcaa982307982a338028a4c01f05bbbf86afe5a9d93b9dfe","last_reissued_at":"2026-07-05T02:33:27.044557Z","signature_status":"signed_v1","first_computed_at":"2026-07-05T02:33:27.044557Z","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54"},"source_kind":"arxiv","source_id":"2101.05305","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":"2026-07-05T02:33:27Z","supersedes":[],"prev_event":null,"signature":{"signature_status":"signed_v1","algorithm":"ed25519","key_id":"pith-v1-2026-05","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54","signature_b64":"Teol/t2jLMZ3qgoI7HnRzkfvJ9Yo5E3TeRTAm2kr1bXg96ycQaW6pCcXKVRJSD0V/pcX3mub4XgmHvZcCungDw==","signed_message":"open_graph_event_sha256_bytes","signed_at":"2026-07-05T14:37:27.788251Z"},"content_sha256":"93bb7d9b871911bc1c730574ef87ace339d40b5bea64de7f0c80c649453239f9","schema_version":"1.0","event_id":"sha256:93bb7d9b871911bc1c730574ef87ace339d40b5bea64de7f0c80c649453239f9"},{"event_type":"graph_snapshot","subject_pith_number":"pith:2021:3HRNOOS2UXDCBXFKTARQPGBKGO","target":"graph","payload":{"graph_snapshot":{"paper":{"title":"VLA resolves unexpected radio structures in the Perseus cluster of galaxies","license":"http://creativecommons.org/licenses/by-nc-nd/4.0/","headline":"","cross_cats":[],"primary_cat":"astro-ph.GA","authors_text":"Andrew C. Fabian, Annabelle Richard-Laferri\\`ere, Charles L. H. Hull, Elke Roediger, Emmet Golden-Marx, James D. McBride, Julie Hlavacek-Larrondo, Lawrence Rudnick, Marie-Lou Gendron-Marsolais, Naoki Arakawa, Ralph Kraft, Reinout J. van Weeren, Rick Perley","submitted_at":"2021-01-13T19:03:04Z","abstract_excerpt":"We present new deep, high-resolution, 1.5 GHz observations of the prototypical nearby Perseus galaxy cluster from the Karl G. Jansky Very Large Array. We isolate for the first time the complete tail of radio emission of the bent-jet radio galaxy NGC 1272, which had been previously mistaken to be part of the radio mini-halo. The possibility that diffuse radio galaxy emission contributes to mini-halo emission may be a general phenomenon in relaxed cool-core clusters, and should be explored. The collimated jets of NGC 1272 initially bend to the west, and then transition eastward into faint, 60 kp"},"claims":{"count":0,"items":[],"snapshot_sha256":"258153158e38e3291e3d48162225fcdb2d5a3ed65a07baac614ab91432fd4f57"},"source":{"id":"2101.05305","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/2101.05305/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":"2026-07-05T02:33:27Z","supersedes":[],"prev_event":null,"signature":{"signature_status":"signed_v1","algorithm":"ed25519","key_id":"pith-v1-2026-05","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54","signature_b64":"jqSaKje5XCtfDZuDoGWkG1TEYcaIgUfG99j+lqnWxpZICfKqvDp6JqP85wwcJ+9mK+0W4STFvG0pnV6MpbASDw==","signed_message":"open_graph_event_sha256_bytes","signed_at":"2026-07-05T14:37:27.788938Z"},"content_sha256":"d9c4f7ac7d18ad24931c4227d3b9f61d8185cb40384eb83aa9f9d935ec4b96bb","schema_version":"1.0","event_id":"sha256:d9c4f7ac7d18ad24931c4227d3b9f61d8185cb40384eb83aa9f9d935ec4b96bb"}],"timestamp_proofs":[],"mirror_hints":[{"mirror_type":"https","name":"Pith Resolver","base_url":"https://pith.science","bundle_url":"https://pith.science/pith/3HRNOOS2UXDCBXFKTARQPGBKGO/bundle.json","state_url":"https://pith.science/pith/3HRNOOS2UXDCBXFKTARQPGBKGO/state.json","well_known_bundle_url":"https://pith.science/.well-known/pith/3HRNOOS2UXDCBXFKTARQPGBKGO/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":"2026-07-05T14:37:27Z","links":{"resolver":"https://pith.science/pith/3HRNOOS2UXDCBXFKTARQPGBKGO","bundle":"https://pith.science/pith/3HRNOOS2UXDCBXFKTARQPGBKGO/bundle.json","state":"https://pith.science/pith/3HRNOOS2UXDCBXFKTARQPGBKGO/state.json","well_known_bundle":"https://pith.science/.well-known/pith/3HRNOOS2UXDCBXFKTARQPGBKGO/bundle.json"},"state":{"state_type":"pith_open_graph_state","state_version":"1.0","pith_number":"pith:2021:3HRNOOS2UXDCBXFKTARQPGBKGO","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":"6d2d87afe6360c28ade5a49f546586860658094c1ff8b8781393806ce99672e0","cross_cats_sorted":[],"license":"http://creativecommons.org/licenses/by-nc-nd/4.0/","primary_cat":"astro-ph.GA","submitted_at":"2021-01-13T19:03:04Z","title_canon_sha256":"442fae1513853947cdf3fd819566700e8a314aec2ba2bd3d06923ea0901b9f26"},"schema_version":"1.0","source":{"id":"2101.05305","kind":"arxiv","version":1}},"source_aliases":[{"alias_kind":"arxiv","alias_value":"2101.05305","created_at":"2026-07-05T02:33:27Z"},{"alias_kind":"arxiv_version","alias_value":"2101.05305v1","created_at":"2026-07-05T02:33:27Z"},{"alias_kind":"doi","alias_value":"10.48550/arxiv.2101.05305","created_at":"2026-07-05T02:33:27Z"},{"alias_kind":"pith_short_12","alias_value":"3HRNOOS2UXDC","created_at":"2026-07-05T02:33:27Z"},{"alias_kind":"pith_short_16","alias_value":"3HRNOOS2UXDCBXFK","created_at":"2026-07-05T02:33:27Z"},{"alias_kind":"pith_short_8","alias_value":"3HRNOOS2","created_at":"2026-07-05T02:33:27Z"}],"graph_snapshots":[{"event_id":"sha256:d9c4f7ac7d18ad24931c4227d3b9f61d8185cb40384eb83aa9f9d935ec4b96bb","target":"graph","created_at":"2026-07-05T02:33:27Z","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/2101.05305/integrity.json","findings":[],"snapshot_sha256":"c28c3603d3b5d939e8dc4c7e95fa8dfce3d595e45f758748cecf8e644a296938","summary":{"advisory":0,"by_detector":{},"critical":0,"informational":0}},"paper":{"abstract_excerpt":"We present new deep, high-resolution, 1.5 GHz observations of the prototypical nearby Perseus galaxy cluster from the Karl G. Jansky Very Large Array. We isolate for the first time the complete tail of radio emission of the bent-jet radio galaxy NGC 1272, which had been previously mistaken to be part of the radio mini-halo. The possibility that diffuse radio galaxy emission contributes to mini-halo emission may be a general phenomenon in relaxed cool-core clusters, and should be explored. The collimated jets of NGC 1272 initially bend to the west, and then transition eastward into faint, 60 kp","authors_text":"Andrew C. Fabian, Annabelle Richard-Laferri\\`ere, Charles L. H. Hull, Elke Roediger, Emmet Golden-Marx, James D. McBride, Julie Hlavacek-Larrondo, Lawrence Rudnick, Marie-Lou Gendron-Marsolais, Naoki Arakawa, Ralph Kraft, Reinout J. van Weeren, Rick Perley","cross_cats":[],"headline":"","license":"http://creativecommons.org/licenses/by-nc-nd/4.0/","primary_cat":"astro-ph.GA","submitted_at":"2021-01-13T19:03:04Z","title":"VLA resolves unexpected radio structures in the Perseus cluster of galaxies"},"references":{"count":0,"internal_anchors":0,"resolved_work":0,"sample":[],"snapshot_sha256":"258153158e38e3291e3d48162225fcdb2d5a3ed65a07baac614ab91432fd4f57"},"source":{"id":"2101.05305","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":"sha256:93bb7d9b871911bc1c730574ef87ace339d40b5bea64de7f0c80c649453239f9","target":"record","created_at":"2026-07-05T02:33:27Z","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":"6d2d87afe6360c28ade5a49f546586860658094c1ff8b8781393806ce99672e0","cross_cats_sorted":[],"license":"http://creativecommons.org/licenses/by-nc-nd/4.0/","primary_cat":"astro-ph.GA","submitted_at":"2021-01-13T19:03:04Z","title_canon_sha256":"442fae1513853947cdf3fd819566700e8a314aec2ba2bd3d06923ea0901b9f26"},"schema_version":"1.0","source":{"id":"2101.05305","kind":"arxiv","version":1}},"canonical_sha256":"d9e2d73a5aa5c620dcaa982307982a338028a4c01f05bbbf86afe5a9d93b9dfe","receipt":{"algorithm":"ed25519","builder_version":"pith-number-builder-2026-05-17-v1","canonical_sha256":"d9e2d73a5aa5c620dcaa982307982a338028a4c01f05bbbf86afe5a9d93b9dfe","first_computed_at":"2026-07-05T02:33:27.044557Z","key_id":"pith-v1-2026-05","kind":"pith_receipt","last_reissued_at":"2026-07-05T02:33:27.044557Z","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54","receipt_version":"0.3","signature_b64":"d5biPtWPIr7KnvaGAgdc1yIBrWvKJBEDZJDHoXoWikD6Cgf7Bec/thmga2f77Rw0ZQ3kCColLWr2TviPK4/EDw==","signature_status":"signed_v1","signed_at":"2026-07-05T02:33:27.044950Z","signed_message":"canonical_sha256_bytes"},"source_id":"2101.05305","source_kind":"arxiv","source_version":1}}},"equivocations":[],"invalid_events":[],"applied_event_ids":["sha256:93bb7d9b871911bc1c730574ef87ace339d40b5bea64de7f0c80c649453239f9","sha256:d9c4f7ac7d18ad24931c4227d3b9f61d8185cb40384eb83aa9f9d935ec4b96bb"],"state_sha256":"5d964866f06f14558b90a8bcf36497ffee6aaeb87c6c3c37cd312e998276f939"},"bundle_signature":{"signature_status":"signed_v1","algorithm":"ed25519","key_id":"pith-v1-2026-05","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54","signature_b64":"S4fQyBJD4O9YzT09HqKu2fe5hB7+tYXUm3anZDCfZE0X0Y7GxAfY3ccWHvvacxasV6t6pxsDmYpP5Ti06aKjBQ==","signed_message":"bundle_sha256_bytes","signed_at":"2026-07-05T14:37:27.794588Z","bundle_sha256":"be92deefd49c6d5dca29380eb99cd79eec2d44f86898b6539ebf92cb378f18a8"}}