{"bundle_type":"pith_open_graph_bundle","bundle_version":"1.0","pith_number":"pith:2023:X5A4KK7JBKGOOC5Q2WEE457NK3","short_pith_number":"pith:X5A4KK7J","canonical_record":{"source":{"id":"2309.07963","kind":"arxiv","version":2},"metadata":{"license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"astro-ph.HE","submitted_at":"2023-09-14T18:00:41Z","cross_cats_sorted":[],"title_canon_sha256":"234cfcb8c26d0aefe7c780c1e42f3baede61975c2c2f26b7fba22fc0100f89b4","abstract_canon_sha256":"42b6eaf0397ea3f901cae937b440de1cc23581a9ca2dd5e62292c3ab5d692772"},"schema_version":"1.0"},"canonical_sha256":"bf41c52be90a8ce70bb0d5884e77ed56d484c03f82a1a802348b54ef70f554f6","source":{"kind":"arxiv","id":"2309.07963","version":2},"source_aliases":[{"alias_kind":"arxiv","alias_value":"2309.07963","created_at":"2026-07-05T07:04:50Z"},{"alias_kind":"arxiv_version","alias_value":"2309.07963v2","created_at":"2026-07-05T07:04:50Z"},{"alias_kind":"doi","alias_value":"10.48550/arxiv.2309.07963","created_at":"2026-07-05T07:04:50Z"},{"alias_kind":"pith_short_12","alias_value":"X5A4KK7JBKGO","created_at":"2026-07-05T07:04:50Z"},{"alias_kind":"pith_short_16","alias_value":"X5A4KK7JBKGOOC5Q","created_at":"2026-07-05T07:04:50Z"},{"alias_kind":"pith_short_8","alias_value":"X5A4KK7J","created_at":"2026-07-05T07:04:50Z"}],"events":[{"event_type":"record_created","subject_pith_number":"pith:2023:X5A4KK7JBKGOOC5Q2WEE457NK3","target":"record","payload":{"canonical_record":{"source":{"id":"2309.07963","kind":"arxiv","version":2},"metadata":{"license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"astro-ph.HE","submitted_at":"2023-09-14T18:00:41Z","cross_cats_sorted":[],"title_canon_sha256":"234cfcb8c26d0aefe7c780c1e42f3baede61975c2c2f26b7fba22fc0100f89b4","abstract_canon_sha256":"42b6eaf0397ea3f901cae937b440de1cc23581a9ca2dd5e62292c3ab5d692772"},"schema_version":"1.0"},"canonical_sha256":"bf41c52be90a8ce70bb0d5884e77ed56d484c03f82a1a802348b54ef70f554f6","receipt":{"kind":"pith_receipt","key_id":"pith-v1-2026-05","algorithm":"ed25519","signed_at":"2026-07-05T07:04:50.561113Z","signature_b64":"Ip5djy86Hji/hZUnPUrQOOx3SJINaukzOIPSbKVlp1GoAXfz05MZ/RxsYSr972+CEKTmNsGKcLy3Gm0VHpmwCg==","signed_message":"canonical_sha256_bytes","builder_version":"pith-number-builder-2026-05-17-v1","receipt_version":"0.3","canonical_sha256":"bf41c52be90a8ce70bb0d5884e77ed56d484c03f82a1a802348b54ef70f554f6","last_reissued_at":"2026-07-05T07:04:50.560592Z","signature_status":"signed_v1","first_computed_at":"2026-07-05T07:04:50.560592Z","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54"},"source_kind":"arxiv","source_id":"2309.07963","source_version":2,"attestation_state":"computed"},"signer":{"signer_id":"pith.science","signer_type":"pith_registry","key_id":"pith-v1-2026-05","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54"},"created_at":"2026-07-05T07:04:50Z","supersedes":[],"prev_event":null,"signature":{"signature_status":"signed_v1","algorithm":"ed25519","key_id":"pith-v1-2026-05","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54","signature_b64":"KC5suptAWDFXcAbvR5JtZ4Twz2a9QhlbRL6MYyM+pke5wY91y/r1aO6Zfvyw4wVVn4NJgrH3KZSbrZfyUJqFAA==","signed_message":"open_graph_event_sha256_bytes","signed_at":"2026-08-04T13:37:20.302931Z"},"content_sha256":"091a6f713a003db6da6e168eb3de347c70d370823beccde35bbde88e17c83dbc","schema_version":"1.0","event_id":"sha256:091a6f713a003db6da6e168eb3de347c70d370823beccde35bbde88e17c83dbc"},{"event_type":"graph_snapshot","subject_pith_number":"pith:2023:X5A4KK7JBKGOOC5Q2WEE457NK3","target":"graph","payload":{"graph_snapshot":{"paper":{"title":"Synchrotron polarization signatures of surface waves in supermassive black hole jets","license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","headline":"","cross_cats":[],"primary_cat":"astro-ph.HE","authors_text":"Alexander A. Philippov, Bart Ripperda, Bram van den Berg, Hector Olivares, Jordy Davelaar, Koushik Chatterjee, Lorenzo Sironi, Matthew Liska, Oliver Porth, Thomas Bronzwaer","submitted_at":"2023-09-14T18:00:41Z","abstract_excerpt":"Supermassive black holes in active galactic nuclei (AGN) are known to launch relativistic jets, which are observed across the entire electromagnetic spectrum and are thought to be efficient particle accelerators. Their primary radiation mechanism for radio emission is polarized synchrotron emission produced by a population of non-thermal electrons. In this Letter, we present a global general relativistic magnetohydrodynamical (GRMHD) simulation of a magnetically arrested disk (MAD). After the simulation reaches the MAD state, we show that waves are continuously launched from the vicinity of th"},"claims":{"count":0,"items":[],"snapshot_sha256":"258153158e38e3291e3d48162225fcdb2d5a3ed65a07baac614ab91432fd4f57"},"source":{"id":"2309.07963","kind":"arxiv","version":2},"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/2309.07963/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":"2026-07-05T07:04:50Z","supersedes":[],"prev_event":null,"signature":{"signature_status":"signed_v1","algorithm":"ed25519","key_id":"pith-v1-2026-05","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54","signature_b64":"EIyU92uXOJviFO0yqX8e7bAbv3itz5CTftyzEsUsulPxXCTO76ryT6Qbx0Ds7kfsxFL4jn945dOTQVzfHwOFBg==","signed_message":"open_graph_event_sha256_bytes","signed_at":"2026-08-04T13:37:20.303750Z"},"content_sha256":"662547d5483def36eb0dd5a5f3261d9397b405a637a39d5c210a111ab0a7a9e3","schema_version":"1.0","event_id":"sha256:662547d5483def36eb0dd5a5f3261d9397b405a637a39d5c210a111ab0a7a9e3"}],"timestamp_proofs":[],"mirror_hints":[{"mirror_type":"https","name":"Pith Resolver","base_url":"https://pith.science","bundle_url":"https://pith.science/pith/X5A4KK7JBKGOOC5Q2WEE457NK3/bundle.json","state_url":"https://pith.science/pith/X5A4KK7JBKGOOC5Q2WEE457NK3/state.json","well_known_bundle_url":"https://pith.science/.well-known/pith/X5A4KK7JBKGOOC5Q2WEE457NK3/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":"2026-08-04T13:37:20Z","links":{"resolver":"https://pith.science/pith/X5A4KK7JBKGOOC5Q2WEE457NK3","bundle":"https://pith.science/pith/X5A4KK7JBKGOOC5Q2WEE457NK3/bundle.json","state":"https://pith.science/pith/X5A4KK7JBKGOOC5Q2WEE457NK3/state.json","well_known_bundle":"https://pith.science/.well-known/pith/X5A4KK7JBKGOOC5Q2WEE457NK3/bundle.json"},"state":{"state_type":"pith_open_graph_state","state_version":"1.0","pith_number":"pith:2023:X5A4KK7JBKGOOC5Q2WEE457NK3","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":"42b6eaf0397ea3f901cae937b440de1cc23581a9ca2dd5e62292c3ab5d692772","cross_cats_sorted":[],"license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"astro-ph.HE","submitted_at":"2023-09-14T18:00:41Z","title_canon_sha256":"234cfcb8c26d0aefe7c780c1e42f3baede61975c2c2f26b7fba22fc0100f89b4"},"schema_version":"1.0","source":{"id":"2309.07963","kind":"arxiv","version":2}},"source_aliases":[{"alias_kind":"arxiv","alias_value":"2309.07963","created_at":"2026-07-05T07:04:50Z"},{"alias_kind":"arxiv_version","alias_value":"2309.07963v2","created_at":"2026-07-05T07:04:50Z"},{"alias_kind":"doi","alias_value":"10.48550/arxiv.2309.07963","created_at":"2026-07-05T07:04:50Z"},{"alias_kind":"pith_short_12","alias_value":"X5A4KK7JBKGO","created_at":"2026-07-05T07:04:50Z"},{"alias_kind":"pith_short_16","alias_value":"X5A4KK7JBKGOOC5Q","created_at":"2026-07-05T07:04:50Z"},{"alias_kind":"pith_short_8","alias_value":"X5A4KK7J","created_at":"2026-07-05T07:04:50Z"}],"graph_snapshots":[{"event_id":"sha256:662547d5483def36eb0dd5a5f3261d9397b405a637a39d5c210a111ab0a7a9e3","target":"graph","created_at":"2026-07-05T07:04:50Z","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/2309.07963/integrity.json","findings":[],"snapshot_sha256":"c28c3603d3b5d939e8dc4c7e95fa8dfce3d595e45f758748cecf8e644a296938","summary":{"advisory":0,"by_detector":{},"critical":0,"informational":0}},"paper":{"abstract_excerpt":"Supermassive black holes in active galactic nuclei (AGN) are known to launch relativistic jets, which are observed across the entire electromagnetic spectrum and are thought to be efficient particle accelerators. Their primary radiation mechanism for radio emission is polarized synchrotron emission produced by a population of non-thermal electrons. In this Letter, we present a global general relativistic magnetohydrodynamical (GRMHD) simulation of a magnetically arrested disk (MAD). After the simulation reaches the MAD state, we show that waves are continuously launched from the vicinity of th","authors_text":"Alexander A. Philippov, Bart Ripperda, Bram van den Berg, Hector Olivares, Jordy Davelaar, Koushik Chatterjee, Lorenzo Sironi, Matthew Liska, Oliver Porth, Thomas Bronzwaer","cross_cats":[],"headline":"","license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"astro-ph.HE","submitted_at":"2023-09-14T18:00:41Z","title":"Synchrotron polarization signatures of surface waves in supermassive black hole jets"},"references":{"count":0,"internal_anchors":0,"resolved_work":0,"sample":[],"snapshot_sha256":"258153158e38e3291e3d48162225fcdb2d5a3ed65a07baac614ab91432fd4f57"},"source":{"id":"2309.07963","kind":"arxiv","version":2},"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":"sha256:091a6f713a003db6da6e168eb3de347c70d370823beccde35bbde88e17c83dbc","target":"record","created_at":"2026-07-05T07:04:50Z","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":"42b6eaf0397ea3f901cae937b440de1cc23581a9ca2dd5e62292c3ab5d692772","cross_cats_sorted":[],"license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"astro-ph.HE","submitted_at":"2023-09-14T18:00:41Z","title_canon_sha256":"234cfcb8c26d0aefe7c780c1e42f3baede61975c2c2f26b7fba22fc0100f89b4"},"schema_version":"1.0","source":{"id":"2309.07963","kind":"arxiv","version":2}},"canonical_sha256":"bf41c52be90a8ce70bb0d5884e77ed56d484c03f82a1a802348b54ef70f554f6","receipt":{"algorithm":"ed25519","builder_version":"pith-number-builder-2026-05-17-v1","canonical_sha256":"bf41c52be90a8ce70bb0d5884e77ed56d484c03f82a1a802348b54ef70f554f6","first_computed_at":"2026-07-05T07:04:50.560592Z","key_id":"pith-v1-2026-05","kind":"pith_receipt","last_reissued_at":"2026-07-05T07:04:50.560592Z","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54","receipt_version":"0.3","signature_b64":"Ip5djy86Hji/hZUnPUrQOOx3SJINaukzOIPSbKVlp1GoAXfz05MZ/RxsYSr972+CEKTmNsGKcLy3Gm0VHpmwCg==","signature_status":"signed_v1","signed_at":"2026-07-05T07:04:50.561113Z","signed_message":"canonical_sha256_bytes"},"source_id":"2309.07963","source_kind":"arxiv","source_version":2}}},"equivocations":[],"invalid_events":[],"applied_event_ids":["sha256:091a6f713a003db6da6e168eb3de347c70d370823beccde35bbde88e17c83dbc","sha256:662547d5483def36eb0dd5a5f3261d9397b405a637a39d5c210a111ab0a7a9e3"],"state_sha256":"b40eb2324fb51eb3f66926a85f309aacd1f8e4a9a53c8736fe28b795a25f6b77"},"bundle_signature":{"signature_status":"signed_v1","algorithm":"ed25519","key_id":"pith-v1-2026-05","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54","signature_b64":"BfxZbBEdb8eAR3t7ERkDs0c3FJ5Dvafr445Rlf9WnsRL6d20YE4dGy/N1UCKrepUogbZdfEjqImr0fFfuwHGBg==","signed_message":"bundle_sha256_bytes","signed_at":"2026-08-04T13:37:20.318450Z","bundle_sha256":"83362e1cf0fe4ae06a368413f32d4c29e7364342c2c88fdedb6632fcd37e1652"}}