{"bundle_type":"pith_open_graph_bundle","bundle_version":"1.0","pith_number":"pith:2021:GKK2EQ654MF3QDFKW2JZXNNPNC","short_pith_number":"pith:GKK2EQ65","canonical_record":{"source":{"id":"2108.06343","kind":"arxiv","version":1},"metadata":{"license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"astro-ph.HE","submitted_at":"2021-08-13T18:00:02Z","cross_cats_sorted":[],"title_canon_sha256":"761ee06b32f8e3186c782daee513b37cc987f031912ef010bd8d6c3b1b5c3d2a","abstract_canon_sha256":"70dae8339a70c37cfe84f3a99d66b4395d118c69ac178854ba6c832e0e3eb52f"},"schema_version":"1.0"},"canonical_sha256":"3295a243dde30bb80caab6939bb5af688defa0ca8e2f9a00a305544bc1fb9361","source":{"kind":"arxiv","id":"2108.06343","version":1},"source_aliases":[{"alias_kind":"arxiv","alias_value":"2108.06343","created_at":"2026-07-05T03:05:53Z"},{"alias_kind":"arxiv_version","alias_value":"2108.06343v1","created_at":"2026-07-05T03:05:53Z"},{"alias_kind":"doi","alias_value":"10.48550/arxiv.2108.06343","created_at":"2026-07-05T03:05:53Z"},{"alias_kind":"pith_short_12","alias_value":"GKK2EQ654MF3","created_at":"2026-07-05T03:05:53Z"},{"alias_kind":"pith_short_16","alias_value":"GKK2EQ654MF3QDFK","created_at":"2026-07-05T03:05:53Z"},{"alias_kind":"pith_short_8","alias_value":"GKK2EQ65","created_at":"2026-07-05T03:05:53Z"}],"events":[{"event_type":"record_created","subject_pith_number":"pith:2021:GKK2EQ654MF3QDFKW2JZXNNPNC","target":"record","payload":{"canonical_record":{"source":{"id":"2108.06343","kind":"arxiv","version":1},"metadata":{"license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"astro-ph.HE","submitted_at":"2021-08-13T18:00:02Z","cross_cats_sorted":[],"title_canon_sha256":"761ee06b32f8e3186c782daee513b37cc987f031912ef010bd8d6c3b1b5c3d2a","abstract_canon_sha256":"70dae8339a70c37cfe84f3a99d66b4395d118c69ac178854ba6c832e0e3eb52f"},"schema_version":"1.0"},"canonical_sha256":"3295a243dde30bb80caab6939bb5af688defa0ca8e2f9a00a305544bc1fb9361","receipt":{"kind":"pith_receipt","key_id":"pith-v1-2026-05","algorithm":"ed25519","signed_at":"2026-07-05T03:05:53.547813Z","signature_b64":"9s+e/lbToPbVHLXJOxMWzj0d75Aq85PjkKPL5T3YsyggpbcbL/f3DFTuMvpp78KpTsBSn0uTTfOVnteyHkDvDw==","signed_message":"canonical_sha256_bytes","builder_version":"pith-number-builder-2026-05-17-v1","receipt_version":"0.3","canonical_sha256":"3295a243dde30bb80caab6939bb5af688defa0ca8e2f9a00a305544bc1fb9361","last_reissued_at":"2026-07-05T03:05:53.547402Z","signature_status":"signed_v1","first_computed_at":"2026-07-05T03:05:53.547402Z","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54"},"source_kind":"arxiv","source_id":"2108.06343","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":"2026-07-05T03:05:53Z","supersedes":[],"prev_event":null,"signature":{"signature_status":"signed_v1","algorithm":"ed25519","key_id":"pith-v1-2026-05","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54","signature_b64":"fYFk/Ngi6Hcm9EjBfpIxuvHHwFM7Mgr8jhtVr7Hm19e12x5EWxEH7wDo/W/vpwROr7ar43u5/a0Eui2yjadRAw==","signed_message":"open_graph_event_sha256_bytes","signed_at":"2026-07-07T14:41:37.388216Z"},"content_sha256":"7991d29cdb24874cc64c08a7ee7be8cf8d8c1a872f656d6d07105ba278c96c9c","schema_version":"1.0","event_id":"sha256:7991d29cdb24874cc64c08a7ee7be8cf8d8c1a872f656d6d07105ba278c96c9c"},{"event_type":"graph_snapshot","subject_pith_number":"pith:2021:GKK2EQ654MF3QDFKW2JZXNNPNC","target":"graph","payload":{"graph_snapshot":{"paper":{"title":"Morphology of radio relics II: Properties of polarised emission","license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","headline":"","cross_cats":[],"primary_cat":"astro-ph.HE","authors_text":"A. Mignone, B. Vaidya, D. Mukherjee, D. Wittor, F. Vazza, K. Rajpurohit, M. Br\\\"uggen, M. Hoeft, P. Dom\\'inguez-Fern\\'andez, W. E. Banda-Barrag\\'an","submitted_at":"2021-08-13T18:00:02Z","abstract_excerpt":"Radio relics are diffuse radio sources in galaxy clusters that are associated with merger shock waves. Detailed observations of radio relics in total intensity and in polarisation show complex structures on kiloparsec scales. The relation between the observed features and the underlying morphology of the magnetic field is not clear. Using three-dimensional magneto-hydrodynamical simulations, we study the polarised emission produced by a shock wave that propagates through a turbulent medium that resembles the intracluster medium. We model the polarised synchrotron emission on the basis of diffu"},"claims":{"count":0,"items":[],"snapshot_sha256":"258153158e38e3291e3d48162225fcdb2d5a3ed65a07baac614ab91432fd4f57"},"source":{"id":"2108.06343","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/2108.06343/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":"2026-07-05T03:05:53Z","supersedes":[],"prev_event":null,"signature":{"signature_status":"signed_v1","algorithm":"ed25519","key_id":"pith-v1-2026-05","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54","signature_b64":"nIEF3is11WP1KwA3ELvIK994rye484NacO8hOSLF/YvEQjgTtjWxkkCCuXhL6hUfzbYRfAvtmVoc0Uguu3S3CA==","signed_message":"open_graph_event_sha256_bytes","signed_at":"2026-07-07T14:41:37.388596Z"},"content_sha256":"da238dd056a485d893c37f464b28da09b83e2f079d916cac14eded0f93767000","schema_version":"1.0","event_id":"sha256:da238dd056a485d893c37f464b28da09b83e2f079d916cac14eded0f93767000"}],"timestamp_proofs":[],"mirror_hints":[{"mirror_type":"https","name":"Pith Resolver","base_url":"https://pith.science","bundle_url":"https://pith.science/pith/GKK2EQ654MF3QDFKW2JZXNNPNC/bundle.json","state_url":"https://pith.science/pith/GKK2EQ654MF3QDFKW2JZXNNPNC/state.json","well_known_bundle_url":"https://pith.science/.well-known/pith/GKK2EQ654MF3QDFKW2JZXNNPNC/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":"2026-07-07T14:41:37Z","links":{"resolver":"https://pith.science/pith/GKK2EQ654MF3QDFKW2JZXNNPNC","bundle":"https://pith.science/pith/GKK2EQ654MF3QDFKW2JZXNNPNC/bundle.json","state":"https://pith.science/pith/GKK2EQ654MF3QDFKW2JZXNNPNC/state.json","well_known_bundle":"https://pith.science/.well-known/pith/GKK2EQ654MF3QDFKW2JZXNNPNC/bundle.json"},"state":{"state_type":"pith_open_graph_state","state_version":"1.0","pith_number":"pith:2021:GKK2EQ654MF3QDFKW2JZXNNPNC","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":"70dae8339a70c37cfe84f3a99d66b4395d118c69ac178854ba6c832e0e3eb52f","cross_cats_sorted":[],"license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"astro-ph.HE","submitted_at":"2021-08-13T18:00:02Z","title_canon_sha256":"761ee06b32f8e3186c782daee513b37cc987f031912ef010bd8d6c3b1b5c3d2a"},"schema_version":"1.0","source":{"id":"2108.06343","kind":"arxiv","version":1}},"source_aliases":[{"alias_kind":"arxiv","alias_value":"2108.06343","created_at":"2026-07-05T03:05:53Z"},{"alias_kind":"arxiv_version","alias_value":"2108.06343v1","created_at":"2026-07-05T03:05:53Z"},{"alias_kind":"doi","alias_value":"10.48550/arxiv.2108.06343","created_at":"2026-07-05T03:05:53Z"},{"alias_kind":"pith_short_12","alias_value":"GKK2EQ654MF3","created_at":"2026-07-05T03:05:53Z"},{"alias_kind":"pith_short_16","alias_value":"GKK2EQ654MF3QDFK","created_at":"2026-07-05T03:05:53Z"},{"alias_kind":"pith_short_8","alias_value":"GKK2EQ65","created_at":"2026-07-05T03:05:53Z"}],"graph_snapshots":[{"event_id":"sha256:da238dd056a485d893c37f464b28da09b83e2f079d916cac14eded0f93767000","target":"graph","created_at":"2026-07-05T03:05:53Z","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/2108.06343/integrity.json","findings":[],"snapshot_sha256":"c28c3603d3b5d939e8dc4c7e95fa8dfce3d595e45f758748cecf8e644a296938","summary":{"advisory":0,"by_detector":{},"critical":0,"informational":0}},"paper":{"abstract_excerpt":"Radio relics are diffuse radio sources in galaxy clusters that are associated with merger shock waves. Detailed observations of radio relics in total intensity and in polarisation show complex structures on kiloparsec scales. The relation between the observed features and the underlying morphology of the magnetic field is not clear. Using three-dimensional magneto-hydrodynamical simulations, we study the polarised emission produced by a shock wave that propagates through a turbulent medium that resembles the intracluster medium. We model the polarised synchrotron emission on the basis of diffu","authors_text":"A. Mignone, B. Vaidya, D. Mukherjee, D. Wittor, F. Vazza, K. Rajpurohit, M. Br\\\"uggen, M. Hoeft, P. Dom\\'inguez-Fern\\'andez, W. E. Banda-Barrag\\'an","cross_cats":[],"headline":"","license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"astro-ph.HE","submitted_at":"2021-08-13T18:00:02Z","title":"Morphology of radio relics II: Properties of polarised emission"},"references":{"count":0,"internal_anchors":0,"resolved_work":0,"sample":[],"snapshot_sha256":"258153158e38e3291e3d48162225fcdb2d5a3ed65a07baac614ab91432fd4f57"},"source":{"id":"2108.06343","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":"sha256:7991d29cdb24874cc64c08a7ee7be8cf8d8c1a872f656d6d07105ba278c96c9c","target":"record","created_at":"2026-07-05T03:05:53Z","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":"70dae8339a70c37cfe84f3a99d66b4395d118c69ac178854ba6c832e0e3eb52f","cross_cats_sorted":[],"license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"astro-ph.HE","submitted_at":"2021-08-13T18:00:02Z","title_canon_sha256":"761ee06b32f8e3186c782daee513b37cc987f031912ef010bd8d6c3b1b5c3d2a"},"schema_version":"1.0","source":{"id":"2108.06343","kind":"arxiv","version":1}},"canonical_sha256":"3295a243dde30bb80caab6939bb5af688defa0ca8e2f9a00a305544bc1fb9361","receipt":{"algorithm":"ed25519","builder_version":"pith-number-builder-2026-05-17-v1","canonical_sha256":"3295a243dde30bb80caab6939bb5af688defa0ca8e2f9a00a305544bc1fb9361","first_computed_at":"2026-07-05T03:05:53.547402Z","key_id":"pith-v1-2026-05","kind":"pith_receipt","last_reissued_at":"2026-07-05T03:05:53.547402Z","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54","receipt_version":"0.3","signature_b64":"9s+e/lbToPbVHLXJOxMWzj0d75Aq85PjkKPL5T3YsyggpbcbL/f3DFTuMvpp78KpTsBSn0uTTfOVnteyHkDvDw==","signature_status":"signed_v1","signed_at":"2026-07-05T03:05:53.547813Z","signed_message":"canonical_sha256_bytes"},"source_id":"2108.06343","source_kind":"arxiv","source_version":1}}},"equivocations":[],"invalid_events":[],"applied_event_ids":["sha256:7991d29cdb24874cc64c08a7ee7be8cf8d8c1a872f656d6d07105ba278c96c9c","sha256:da238dd056a485d893c37f464b28da09b83e2f079d916cac14eded0f93767000"],"state_sha256":"c15e1e5f21aef018e8ec84724532a4c1f3d630d2e11a2d86f7ede7257edc411e"},"bundle_signature":{"signature_status":"signed_v1","algorithm":"ed25519","key_id":"pith-v1-2026-05","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54","signature_b64":"UhedhakAmi0JuOSoOeC8ADUcgWrUGqAfCQYtyl7w3MUoQy8auiv46a4g7Rj9ohwNWySJD03rLTJdtFm65GF7Dw==","signed_message":"bundle_sha256_bytes","signed_at":"2026-07-07T14:41:37.390492Z","bundle_sha256":"c72018415a0c1bb020e87a9f94e54878166948dbc05ab8d06404994ba9ee4256"}}