{"bundle_type":"pith_open_graph_bundle","bundle_version":"1.0","pith_number":"pith:2019:GB3A7BM4PQZUAMBPQP5HH2SCKT","short_pith_number":"pith:GB3A7BM4","canonical_record":{"source":{"id":"1903.03257","kind":"arxiv","version":1},"metadata":{"license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"astro-ph.HE","submitted_at":"2019-03-08T02:59:33Z","cross_cats_sorted":[],"title_canon_sha256":"0600f1828a3b085c7f08109ed9b2879d618557a68553a279a464a7bb634a9e14","abstract_canon_sha256":"174095eb0f829098a4b2236d8564f18275b1ab23295234d56c593a64b78f1076"},"schema_version":"1.0"},"canonical_sha256":"30760f859c7c3340302f83fa73ea4254d8995a43757521c24ec1092a2e61a661","source":{"kind":"arxiv","id":"1903.03257","version":1},"source_aliases":[{"alias_kind":"arxiv","alias_value":"1903.03257","created_at":"2026-05-17T23:47:57Z"},{"alias_kind":"arxiv_version","alias_value":"1903.03257v1","created_at":"2026-05-17T23:47:57Z"},{"alias_kind":"doi","alias_value":"10.48550/arxiv.1903.03257","created_at":"2026-05-17T23:47:57Z"},{"alias_kind":"pith_short_12","alias_value":"GB3A7BM4PQZU","created_at":"2026-05-18T12:33:18Z"},{"alias_kind":"pith_short_16","alias_value":"GB3A7BM4PQZUAMBP","created_at":"2026-05-18T12:33:18Z"},{"alias_kind":"pith_short_8","alias_value":"GB3A7BM4","created_at":"2026-05-18T12:33:18Z"}],"events":[{"event_type":"record_created","subject_pith_number":"pith:2019:GB3A7BM4PQZUAMBPQP5HH2SCKT","target":"record","payload":{"canonical_record":{"source":{"id":"1903.03257","kind":"arxiv","version":1},"metadata":{"license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"astro-ph.HE","submitted_at":"2019-03-08T02:59:33Z","cross_cats_sorted":[],"title_canon_sha256":"0600f1828a3b085c7f08109ed9b2879d618557a68553a279a464a7bb634a9e14","abstract_canon_sha256":"174095eb0f829098a4b2236d8564f18275b1ab23295234d56c593a64b78f1076"},"schema_version":"1.0"},"canonical_sha256":"30760f859c7c3340302f83fa73ea4254d8995a43757521c24ec1092a2e61a661","receipt":{"kind":"pith_receipt","key_id":"pith-v1-2026-05","algorithm":"ed25519","signed_at":"2026-05-17T23:47:57.796733Z","signature_b64":"hNfjpNyBeyozh4MJtLjf0vx9I1hDFwNXL6Si6OoVMlQNkR2f3bYNNSk+QSxBgBd1lKOeWBnphO2IuxTZDE0pBA==","signed_message":"canonical_sha256_bytes","builder_version":"pith-number-builder-2026-05-17-v1","receipt_version":"0.3","canonical_sha256":"30760f859c7c3340302f83fa73ea4254d8995a43757521c24ec1092a2e61a661","last_reissued_at":"2026-05-17T23:47:57.796099Z","signature_status":"signed_v1","first_computed_at":"2026-05-17T23:47:57.796099Z","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54"},"source_kind":"arxiv","source_id":"1903.03257","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":"2026-05-17T23:47:57Z","supersedes":[],"prev_event":null,"signature":{"signature_status":"signed_v1","algorithm":"ed25519","key_id":"pith-v1-2026-05","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54","signature_b64":"w5nybeNYiX5IHm2w4e31gpbp8SQ1PT5YF/9d8KOCJpoJtUb/F8/Omdsr8rFs0Nm5U1sikPcQcFwBCn4pssEFAw==","signed_message":"open_graph_event_sha256_bytes","signed_at":"2026-06-05T13:07:41.527600Z"},"content_sha256":"5d7412444b5b9050583dfa32e49afda774c78bc0ae0ac97e08768af49117e06e","schema_version":"1.0","event_id":"sha256:5d7412444b5b9050583dfa32e49afda774c78bc0ae0ac97e08768af49117e06e"},{"event_type":"graph_snapshot","subject_pith_number":"pith:2019:GB3A7BM4PQZUAMBPQP5HH2SCKT","target":"graph","payload":{"graph_snapshot":{"paper":{"title":"Coherent radio emission from a twisted magnetosphere after magnetar-quake","license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","headline":"","cross_cats":[],"primary_cat":"astro-ph.HE","authors_text":"Bing Zhang, Renxin Xu, Weiyang Wang, Xuelei Chen","submitted_at":"2019-03-08T02:59:33Z","abstract_excerpt":"Magnetars are a class of highly magnetized, slowly rotating neutron stars, only a small fraction of which exhibit radio emission. We propose that the coherent radio curvature emission is generated by net charge fluctuations from a twist-current-carrying bundle (the j-bundle) in the scenario of magnetar-quake. Two-photon pair production is triggered, which requires a threshold voltage not too much higher than $10^9$ V in the current-carrying bundle, and which can be regarded as the `open field lines' of a magnetar. Continued untwisting of the magnetosphere maintains change fluctuations, and hen"},"claims":{"count":0,"items":[],"snapshot_sha256":"258153158e38e3291e3d48162225fcdb2d5a3ed65a07baac614ab91432fd4f57"},"source":{"id":"1903.03257","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":""},"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":"2026-05-17T23:47:57Z","supersedes":[],"prev_event":null,"signature":{"signature_status":"signed_v1","algorithm":"ed25519","key_id":"pith-v1-2026-05","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54","signature_b64":"ktAEsWeM69r3ApBSBl0RzX9N7xx+4q5px84JgGqqDh5xBYXh3q1VzUdd1GeRSU/3PBj5byyom499QNeG8vnEAQ==","signed_message":"open_graph_event_sha256_bytes","signed_at":"2026-06-05T13:07:41.527944Z"},"content_sha256":"55101f52349a2bd370eafc460c91a46b3ab9018279ee310ec2695eb7d085cb4a","schema_version":"1.0","event_id":"sha256:55101f52349a2bd370eafc460c91a46b3ab9018279ee310ec2695eb7d085cb4a"}],"timestamp_proofs":[],"mirror_hints":[{"mirror_type":"https","name":"Pith Resolver","base_url":"https://pith.science","bundle_url":"https://pith.science/pith/GB3A7BM4PQZUAMBPQP5HH2SCKT/bundle.json","state_url":"https://pith.science/pith/GB3A7BM4PQZUAMBPQP5HH2SCKT/state.json","well_known_bundle_url":"https://pith.science/.well-known/pith/GB3A7BM4PQZUAMBPQP5HH2SCKT/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":"2026-06-05T13:07:41Z","links":{"resolver":"https://pith.science/pith/GB3A7BM4PQZUAMBPQP5HH2SCKT","bundle":"https://pith.science/pith/GB3A7BM4PQZUAMBPQP5HH2SCKT/bundle.json","state":"https://pith.science/pith/GB3A7BM4PQZUAMBPQP5HH2SCKT/state.json","well_known_bundle":"https://pith.science/.well-known/pith/GB3A7BM4PQZUAMBPQP5HH2SCKT/bundle.json"},"state":{"state_type":"pith_open_graph_state","state_version":"1.0","pith_number":"pith:2019:GB3A7BM4PQZUAMBPQP5HH2SCKT","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":"174095eb0f829098a4b2236d8564f18275b1ab23295234d56c593a64b78f1076","cross_cats_sorted":[],"license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"astro-ph.HE","submitted_at":"2019-03-08T02:59:33Z","title_canon_sha256":"0600f1828a3b085c7f08109ed9b2879d618557a68553a279a464a7bb634a9e14"},"schema_version":"1.0","source":{"id":"1903.03257","kind":"arxiv","version":1}},"source_aliases":[{"alias_kind":"arxiv","alias_value":"1903.03257","created_at":"2026-05-17T23:47:57Z"},{"alias_kind":"arxiv_version","alias_value":"1903.03257v1","created_at":"2026-05-17T23:47:57Z"},{"alias_kind":"doi","alias_value":"10.48550/arxiv.1903.03257","created_at":"2026-05-17T23:47:57Z"},{"alias_kind":"pith_short_12","alias_value":"GB3A7BM4PQZU","created_at":"2026-05-18T12:33:18Z"},{"alias_kind":"pith_short_16","alias_value":"GB3A7BM4PQZUAMBP","created_at":"2026-05-18T12:33:18Z"},{"alias_kind":"pith_short_8","alias_value":"GB3A7BM4","created_at":"2026-05-18T12:33:18Z"}],"graph_snapshots":[{"event_id":"sha256:55101f52349a2bd370eafc460c91a46b3ab9018279ee310ec2695eb7d085cb4a","target":"graph","created_at":"2026-05-17T23:47:57Z","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"},"paper":{"abstract_excerpt":"Magnetars are a class of highly magnetized, slowly rotating neutron stars, only a small fraction of which exhibit radio emission. We propose that the coherent radio curvature emission is generated by net charge fluctuations from a twist-current-carrying bundle (the j-bundle) in the scenario of magnetar-quake. Two-photon pair production is triggered, which requires a threshold voltage not too much higher than $10^9$ V in the current-carrying bundle, and which can be regarded as the `open field lines' of a magnetar. Continued untwisting of the magnetosphere maintains change fluctuations, and hen","authors_text":"Bing Zhang, Renxin Xu, Weiyang Wang, Xuelei Chen","cross_cats":[],"headline":"","license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"astro-ph.HE","submitted_at":"2019-03-08T02:59:33Z","title":"Coherent radio emission from a twisted magnetosphere after magnetar-quake"},"references":{"count":0,"internal_anchors":0,"resolved_work":0,"sample":[],"snapshot_sha256":"258153158e38e3291e3d48162225fcdb2d5a3ed65a07baac614ab91432fd4f57"},"source":{"id":"1903.03257","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":"sha256:5d7412444b5b9050583dfa32e49afda774c78bc0ae0ac97e08768af49117e06e","target":"record","created_at":"2026-05-17T23:47:57Z","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":"174095eb0f829098a4b2236d8564f18275b1ab23295234d56c593a64b78f1076","cross_cats_sorted":[],"license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"astro-ph.HE","submitted_at":"2019-03-08T02:59:33Z","title_canon_sha256":"0600f1828a3b085c7f08109ed9b2879d618557a68553a279a464a7bb634a9e14"},"schema_version":"1.0","source":{"id":"1903.03257","kind":"arxiv","version":1}},"canonical_sha256":"30760f859c7c3340302f83fa73ea4254d8995a43757521c24ec1092a2e61a661","receipt":{"algorithm":"ed25519","builder_version":"pith-number-builder-2026-05-17-v1","canonical_sha256":"30760f859c7c3340302f83fa73ea4254d8995a43757521c24ec1092a2e61a661","first_computed_at":"2026-05-17T23:47:57.796099Z","key_id":"pith-v1-2026-05","kind":"pith_receipt","last_reissued_at":"2026-05-17T23:47:57.796099Z","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54","receipt_version":"0.3","signature_b64":"hNfjpNyBeyozh4MJtLjf0vx9I1hDFwNXL6Si6OoVMlQNkR2f3bYNNSk+QSxBgBd1lKOeWBnphO2IuxTZDE0pBA==","signature_status":"signed_v1","signed_at":"2026-05-17T23:47:57.796733Z","signed_message":"canonical_sha256_bytes"},"source_id":"1903.03257","source_kind":"arxiv","source_version":1}}},"equivocations":[],"invalid_events":[],"applied_event_ids":["sha256:5d7412444b5b9050583dfa32e49afda774c78bc0ae0ac97e08768af49117e06e","sha256:55101f52349a2bd370eafc460c91a46b3ab9018279ee310ec2695eb7d085cb4a"],"state_sha256":"e627c2e7d7cfd8a2847da60ca59213f655557b8ef823732aad99dc402a11e431"},"bundle_signature":{"signature_status":"signed_v1","algorithm":"ed25519","key_id":"pith-v1-2026-05","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54","signature_b64":"6jVyefXd6YG5MWA7q5U/SxIlw0H6i9lsvjCkEYNGEvNO4KyHf5tSNYL9LG8AMo+1GJW6llo5wnS8ujgW8sSuDQ==","signed_message":"bundle_sha256_bytes","signed_at":"2026-06-05T13:07:41.529930Z","bundle_sha256":"184037dc6cfbf62dfd4b683a28a9a99d4dfc8708e2ac72ecd3315fa7fe333bb1"}}