{"bundle_type":"pith_open_graph_bundle","bundle_version":"1.0","pith_number":"pith:2026:7LU5HFXEOZEKITDTIPHCZSMP2H","short_pith_number":"pith:7LU5HFXE","canonical_record":{"source":{"id":"2607.15437","kind":"arxiv","version":1},"metadata":{"license":"http://creativecommons.org/licenses/by-nc-sa/4.0/","primary_cat":"astro-ph.CO","submitted_at":"2026-07-16T20:16:22Z","cross_cats_sorted":[],"title_canon_sha256":"441be9ea2625597fe5e60317f0672872766c13203b0d405d820917b503bb26d2","abstract_canon_sha256":"e9c8c701fb5377dad506ebcfb37e527276b8ba849685a80eba579bb76a9ad2ec"},"schema_version":"1.0"},"canonical_sha256":"fae9d396e47648a44c7343ce2cc98fd1e4569f4e0275ff57197d39132abec6bd","source":{"kind":"arxiv","id":"2607.15437","version":1},"source_aliases":[{"alias_kind":"arxiv","alias_value":"2607.15437","created_at":"2026-07-20T00:18:34Z"},{"alias_kind":"arxiv_version","alias_value":"2607.15437v1","created_at":"2026-07-20T00:18:34Z"},{"alias_kind":"doi","alias_value":"10.48550/arxiv.2607.15437","created_at":"2026-07-20T00:18:34Z"},{"alias_kind":"pith_short_12","alias_value":"7LU5HFXEOZEK","created_at":"2026-07-20T00:18:34Z"},{"alias_kind":"pith_short_16","alias_value":"7LU5HFXEOZEKITDT","created_at":"2026-07-20T00:18:34Z"},{"alias_kind":"pith_short_8","alias_value":"7LU5HFXE","created_at":"2026-07-20T00:18:34Z"}],"events":[{"event_type":"record_created","subject_pith_number":"pith:2026:7LU5HFXEOZEKITDTIPHCZSMP2H","target":"record","payload":{"canonical_record":{"source":{"id":"2607.15437","kind":"arxiv","version":1},"metadata":{"license":"http://creativecommons.org/licenses/by-nc-sa/4.0/","primary_cat":"astro-ph.CO","submitted_at":"2026-07-16T20:16:22Z","cross_cats_sorted":[],"title_canon_sha256":"441be9ea2625597fe5e60317f0672872766c13203b0d405d820917b503bb26d2","abstract_canon_sha256":"e9c8c701fb5377dad506ebcfb37e527276b8ba849685a80eba579bb76a9ad2ec"},"schema_version":"1.0"},"canonical_sha256":"fae9d396e47648a44c7343ce2cc98fd1e4569f4e0275ff57197d39132abec6bd","receipt":{"kind":"pith_receipt","key_id":"pith-v1-2026-05","algorithm":"ed25519","signed_at":"2026-07-20T00:18:34.083792Z","signature_b64":"O1XzlvCIVe/+ZWTcfgG8cQ9FeXxJw+eetDlMwEUxgi2bv+2pES8SMA3tvVTuzTHBSsZOqAyvrMQjRCOLNnydCw==","signed_message":"canonical_sha256_bytes","builder_version":"pith-number-builder-2026-05-17-v1","receipt_version":"0.3","canonical_sha256":"fae9d396e47648a44c7343ce2cc98fd1e4569f4e0275ff57197d39132abec6bd","last_reissued_at":"2026-07-20T00:18:34.082971Z","signature_status":"signed_v1","first_computed_at":"2026-07-20T00:18:34.082971Z","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54"},"source_kind":"arxiv","source_id":"2607.15437","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":"2026-07-20T00:18:34Z","supersedes":[],"prev_event":null,"signature":{"signature_status":"signed_v1","algorithm":"ed25519","key_id":"pith-v1-2026-05","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54","signature_b64":"zwTu5MV/pwWxZjgMBoDxUWQKedQ2iEsiCNEgWvrkvmIyWtBUnZWWGomatx5/ZvlI86aRxNtyy3i9+IzdoVrLCw==","signed_message":"open_graph_event_sha256_bytes","signed_at":"2026-08-03T03:35:12.086307Z"},"content_sha256":"be18180d5df63a7aac547e3be4b1253ecf0596a753d8e61a379a2728122093f9","schema_version":"1.0","event_id":"sha256:be18180d5df63a7aac547e3be4b1253ecf0596a753d8e61a379a2728122093f9"},{"event_type":"graph_snapshot","subject_pith_number":"pith:2026:7LU5HFXEOZEKITDTIPHCZSMP2H","target":"graph","payload":{"graph_snapshot":{"paper":{"title":"Two-component large-scale radio emission in Abell 2244","license":"http://creativecommons.org/licenses/by-nc-sa/4.0/","headline":"","cross_cats":[],"primary_cat":"astro-ph.CO","authors_text":"A. Bonafede, C. Groeneveld, F. De Gasperin, F. Gastaldello, G. Brunetti, G. Di Gennaro, J. M. Boxelaar, M. Balboni, M. Cianfaglione, M. Della Chiesa, R. J. van Weeren, V. Cuciti","submitted_at":"2026-07-16T20:16:22Z","abstract_excerpt":"Context. In recent years, clusters have been observed that host multi-component haloes, both in non-merging and merging systems. The existence of these multi-component haloes suggests that there is no clear distinction between the single components. Aims. Abell 2244 is an intermediate-mass cluster that hosts a double component diffuse radio emission. The aim of this paper is to carry out a in-depth study of the diffuse radio emission to constrain its origin and characterize its main radio properties. Methods. In this work we present LOFAR HBA, MeerKAT UHF, and L-band observations of the cluste"},"claims":{"count":0,"items":[],"snapshot_sha256":"258153158e38e3291e3d48162225fcdb2d5a3ed65a07baac614ab91432fd4f57"},"source":{"id":"2607.15437","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/2607.15437/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":"2026-07-20T00:18:34Z","supersedes":[],"prev_event":null,"signature":{"signature_status":"signed_v1","algorithm":"ed25519","key_id":"pith-v1-2026-05","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54","signature_b64":"d1JAvXbAeRdCUSQwkVC8OsaW6DBGeOY6GymzEv06/s250QGUlwloYhOU4Ps+N05N9uSlA2h+PqeD21Xk0Dx7Ag==","signed_message":"open_graph_event_sha256_bytes","signed_at":"2026-08-03T03:35:12.086980Z"},"content_sha256":"3cf57f9d55e4b35fa25e59d40b71285aba5fcb4a340ece9b76b0c4e3363b095a","schema_version":"1.0","event_id":"sha256:3cf57f9d55e4b35fa25e59d40b71285aba5fcb4a340ece9b76b0c4e3363b095a"}],"timestamp_proofs":[],"mirror_hints":[{"mirror_type":"https","name":"Pith Resolver","base_url":"https://pith.science","bundle_url":"https://pith.science/pith/7LU5HFXEOZEKITDTIPHCZSMP2H/bundle.json","state_url":"https://pith.science/pith/7LU5HFXEOZEKITDTIPHCZSMP2H/state.json","well_known_bundle_url":"https://pith.science/.well-known/pith/7LU5HFXEOZEKITDTIPHCZSMP2H/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":"2026-08-03T03:35:12Z","links":{"resolver":"https://pith.science/pith/7LU5HFXEOZEKITDTIPHCZSMP2H","bundle":"https://pith.science/pith/7LU5HFXEOZEKITDTIPHCZSMP2H/bundle.json","state":"https://pith.science/pith/7LU5HFXEOZEKITDTIPHCZSMP2H/state.json","well_known_bundle":"https://pith.science/.well-known/pith/7LU5HFXEOZEKITDTIPHCZSMP2H/bundle.json"},"state":{"state_type":"pith_open_graph_state","state_version":"1.0","pith_number":"pith:2026:7LU5HFXEOZEKITDTIPHCZSMP2H","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":"e9c8c701fb5377dad506ebcfb37e527276b8ba849685a80eba579bb76a9ad2ec","cross_cats_sorted":[],"license":"http://creativecommons.org/licenses/by-nc-sa/4.0/","primary_cat":"astro-ph.CO","submitted_at":"2026-07-16T20:16:22Z","title_canon_sha256":"441be9ea2625597fe5e60317f0672872766c13203b0d405d820917b503bb26d2"},"schema_version":"1.0","source":{"id":"2607.15437","kind":"arxiv","version":1}},"source_aliases":[{"alias_kind":"arxiv","alias_value":"2607.15437","created_at":"2026-07-20T00:18:34Z"},{"alias_kind":"arxiv_version","alias_value":"2607.15437v1","created_at":"2026-07-20T00:18:34Z"},{"alias_kind":"doi","alias_value":"10.48550/arxiv.2607.15437","created_at":"2026-07-20T00:18:34Z"},{"alias_kind":"pith_short_12","alias_value":"7LU5HFXEOZEK","created_at":"2026-07-20T00:18:34Z"},{"alias_kind":"pith_short_16","alias_value":"7LU5HFXEOZEKITDT","created_at":"2026-07-20T00:18:34Z"},{"alias_kind":"pith_short_8","alias_value":"7LU5HFXE","created_at":"2026-07-20T00:18:34Z"}],"graph_snapshots":[{"event_id":"sha256:3cf57f9d55e4b35fa25e59d40b71285aba5fcb4a340ece9b76b0c4e3363b095a","target":"graph","created_at":"2026-07-20T00:18:34Z","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/2607.15437/integrity.json","findings":[],"snapshot_sha256":"c28c3603d3b5d939e8dc4c7e95fa8dfce3d595e45f758748cecf8e644a296938","summary":{"advisory":0,"by_detector":{},"critical":0,"informational":0}},"paper":{"abstract_excerpt":"Context. In recent years, clusters have been observed that host multi-component haloes, both in non-merging and merging systems. The existence of these multi-component haloes suggests that there is no clear distinction between the single components. Aims. Abell 2244 is an intermediate-mass cluster that hosts a double component diffuse radio emission. The aim of this paper is to carry out a in-depth study of the diffuse radio emission to constrain its origin and characterize its main radio properties. Methods. In this work we present LOFAR HBA, MeerKAT UHF, and L-band observations of the cluste","authors_text":"A. Bonafede, C. Groeneveld, F. De Gasperin, F. Gastaldello, G. Brunetti, G. Di Gennaro, J. M. Boxelaar, M. Balboni, M. Cianfaglione, M. Della Chiesa, R. J. van Weeren, V. Cuciti","cross_cats":[],"headline":"","license":"http://creativecommons.org/licenses/by-nc-sa/4.0/","primary_cat":"astro-ph.CO","submitted_at":"2026-07-16T20:16:22Z","title":"Two-component large-scale radio emission in Abell 2244"},"references":{"count":0,"internal_anchors":0,"resolved_work":0,"sample":[],"snapshot_sha256":"258153158e38e3291e3d48162225fcdb2d5a3ed65a07baac614ab91432fd4f57"},"source":{"id":"2607.15437","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:be18180d5df63a7aac547e3be4b1253ecf0596a753d8e61a379a2728122093f9","target":"record","created_at":"2026-07-20T00:18:34Z","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":"e9c8c701fb5377dad506ebcfb37e527276b8ba849685a80eba579bb76a9ad2ec","cross_cats_sorted":[],"license":"http://creativecommons.org/licenses/by-nc-sa/4.0/","primary_cat":"astro-ph.CO","submitted_at":"2026-07-16T20:16:22Z","title_canon_sha256":"441be9ea2625597fe5e60317f0672872766c13203b0d405d820917b503bb26d2"},"schema_version":"1.0","source":{"id":"2607.15437","kind":"arxiv","version":1}},"canonical_sha256":"fae9d396e47648a44c7343ce2cc98fd1e4569f4e0275ff57197d39132abec6bd","receipt":{"algorithm":"ed25519","builder_version":"pith-number-builder-2026-05-17-v1","canonical_sha256":"fae9d396e47648a44c7343ce2cc98fd1e4569f4e0275ff57197d39132abec6bd","first_computed_at":"2026-07-20T00:18:34.082971Z","key_id":"pith-v1-2026-05","kind":"pith_receipt","last_reissued_at":"2026-07-20T00:18:34.082971Z","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54","receipt_version":"0.3","signature_b64":"O1XzlvCIVe/+ZWTcfgG8cQ9FeXxJw+eetDlMwEUxgi2bv+2pES8SMA3tvVTuzTHBSsZOqAyvrMQjRCOLNnydCw==","signature_status":"signed_v1","signed_at":"2026-07-20T00:18:34.083792Z","signed_message":"canonical_sha256_bytes"},"source_id":"2607.15437","source_kind":"arxiv","source_version":1}}},"equivocations":[],"invalid_events":[],"applied_event_ids":["sha256:be18180d5df63a7aac547e3be4b1253ecf0596a753d8e61a379a2728122093f9","sha256:3cf57f9d55e4b35fa25e59d40b71285aba5fcb4a340ece9b76b0c4e3363b095a"],"state_sha256":"df3cb22f4ad59d97efdff52fe1f59ccf98b075a5ad4f40272b7d8222239fd495"},"bundle_signature":{"signature_status":"signed_v1","algorithm":"ed25519","key_id":"pith-v1-2026-05","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54","signature_b64":"zPPO5TScxJ9o2Oky5iBg0VLH6vZFpjr8Dmi1ylfqYpFw1kQNAtSWxqfiud4gmDOSVgPO8zOTq2zAU+mejsGgCw==","signed_message":"bundle_sha256_bytes","signed_at":"2026-08-03T03:35:12.091974Z","bundle_sha256":"b4b8f4f27b6d1f3fe60f193a2bb3aa99f54e28b2eaa59270c8b9eb4c7f141e99"}}