{"bundle_type":"pith_open_graph_bundle","bundle_version":"1.0","pith_number":"pith:2018:MT6QYYNIPAYPVRO45ZARS5SKS3","short_pith_number":"pith:MT6QYYNI","canonical_record":{"source":{"id":"1809.04753","kind":"arxiv","version":1},"metadata":{"license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"astro-ph.SR","submitted_at":"2018-09-13T03:16:21Z","cross_cats_sorted":[],"title_canon_sha256":"1a572f6c513c3f873be5ce97cff28960c00607a5d174c02a94cc80b83976b4b8","abstract_canon_sha256":"790bc373138d101a8c7fdf1572d28889351afe6265deaea0c4ae2ea6c2108f20"},"schema_version":"1.0"},"canonical_sha256":"64fd0c61a87830fac5dcee4119764a96eb64b5d229b07b034ff5bb43c2f9a726","source":{"kind":"arxiv","id":"1809.04753","version":1},"source_aliases":[{"alias_kind":"arxiv","alias_value":"1809.04753","created_at":"2026-05-18T00:01:28Z"},{"alias_kind":"arxiv_version","alias_value":"1809.04753v1","created_at":"2026-05-18T00:01:28Z"},{"alias_kind":"doi","alias_value":"10.48550/arxiv.1809.04753","created_at":"2026-05-18T00:01:28Z"},{"alias_kind":"pith_short_12","alias_value":"MT6QYYNIPAYP","created_at":"2026-05-18T12:32:40Z"},{"alias_kind":"pith_short_16","alias_value":"MT6QYYNIPAYPVRO4","created_at":"2026-05-18T12:32:40Z"},{"alias_kind":"pith_short_8","alias_value":"MT6QYYNI","created_at":"2026-05-18T12:32:40Z"}],"events":[{"event_type":"record_created","subject_pith_number":"pith:2018:MT6QYYNIPAYPVRO45ZARS5SKS3","target":"record","payload":{"canonical_record":{"source":{"id":"1809.04753","kind":"arxiv","version":1},"metadata":{"license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"astro-ph.SR","submitted_at":"2018-09-13T03:16:21Z","cross_cats_sorted":[],"title_canon_sha256":"1a572f6c513c3f873be5ce97cff28960c00607a5d174c02a94cc80b83976b4b8","abstract_canon_sha256":"790bc373138d101a8c7fdf1572d28889351afe6265deaea0c4ae2ea6c2108f20"},"schema_version":"1.0"},"canonical_sha256":"64fd0c61a87830fac5dcee4119764a96eb64b5d229b07b034ff5bb43c2f9a726","receipt":{"kind":"pith_receipt","key_id":"pith-v1-2026-05","algorithm":"ed25519","signed_at":"2026-05-18T00:01:28.353535Z","signature_b64":"EaRjYqqarzqo0sWrglrS6Cuki7Tf1F1YeqbR7sanUpYUwGk6g35vzPtRR0JBvn3skJEawMdMoV6rU5x5xHK4Ag==","signed_message":"canonical_sha256_bytes","builder_version":"pith-number-builder-2026-05-17-v1","receipt_version":"0.3","canonical_sha256":"64fd0c61a87830fac5dcee4119764a96eb64b5d229b07b034ff5bb43c2f9a726","last_reissued_at":"2026-05-18T00:01:28.352854Z","signature_status":"signed_v1","first_computed_at":"2026-05-18T00:01:28.352854Z","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54"},"source_kind":"arxiv","source_id":"1809.04753","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":"2026-05-18T00:01:28Z","supersedes":[],"prev_event":null,"signature":{"signature_status":"signed_v1","algorithm":"ed25519","key_id":"pith-v1-2026-05","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54","signature_b64":"s2GUNyXyY2S6E7B6JnIfGLbIMolXSrOz7w/xbI0W2fZ0ATH8i5dCJFcpFEtrERVNLaA418eIdke6JA0KeX/KCQ==","signed_message":"open_graph_event_sha256_bytes","signed_at":"2026-06-09T04:56:23.480498Z"},"content_sha256":"5b5b5717cd751990c3ffa6cd6a9cc2ec9dfbef2713aca04ee6216247a4bfe2bc","schema_version":"1.0","event_id":"sha256:5b5b5717cd751990c3ffa6cd6a9cc2ec9dfbef2713aca04ee6216247a4bfe2bc"},{"event_type":"graph_snapshot","subject_pith_number":"pith:2018:MT6QYYNIPAYPVRO45ZARS5SKS3","target":"graph","payload":{"graph_snapshot":{"paper":{"title":"The coronal volume of energetic particles in solar flares as revealed by microwave imaging","license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","headline":"","cross_cats":[],"primary_cat":"astro-ph.SR","authors_text":"Dale E. Gary, Gelu M. Nita, Gregory D. Fleishman, Maria A. Loukitcheva, Varvara Yu. Kopnina","submitted_at":"2018-09-13T03:16:21Z","abstract_excerpt":"The spectrum of gyrosynchrotron emission from solar flares generally peaks in the microwave range. Its optically-thin, high-frequency component, above the spectral peak, is often used for diagnostics of the nonthermal electrons and the magnetic field in the radio source. Under favorable conditions, its low-frequency counterpart brings additional, complementary information about these parameters as well as thermal plasma diagnostics, either through gyrosynchrotron self-absorption, free-free absorption by the thermal plasma, or the suppression of emission through the so-called Razin effect. Howe"},"claims":{"count":0,"items":[],"snapshot_sha256":"258153158e38e3291e3d48162225fcdb2d5a3ed65a07baac614ab91432fd4f57"},"source":{"id":"1809.04753","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":"2026-05-18T00:01:28Z","supersedes":[],"prev_event":null,"signature":{"signature_status":"signed_v1","algorithm":"ed25519","key_id":"pith-v1-2026-05","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54","signature_b64":"rXlciDHEXidAy09P3Wa1f3/Cbd5lu04Oxj6mHwHZIlP0+JwSIll1tuMzKasvDIqOIbakPpjJ8Nl34byTIJS0Cw==","signed_message":"open_graph_event_sha256_bytes","signed_at":"2026-06-09T04:56:23.480864Z"},"content_sha256":"a6741daa22c611473eaa4f81f4ee3c963798b79d34748243db257c820748df22","schema_version":"1.0","event_id":"sha256:a6741daa22c611473eaa4f81f4ee3c963798b79d34748243db257c820748df22"}],"timestamp_proofs":[],"mirror_hints":[{"mirror_type":"https","name":"Pith Resolver","base_url":"https://pith.science","bundle_url":"https://pith.science/pith/MT6QYYNIPAYPVRO45ZARS5SKS3/bundle.json","state_url":"https://pith.science/pith/MT6QYYNIPAYPVRO45ZARS5SKS3/state.json","well_known_bundle_url":"https://pith.science/.well-known/pith/MT6QYYNIPAYPVRO45ZARS5SKS3/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":"2026-06-09T04:56:23Z","links":{"resolver":"https://pith.science/pith/MT6QYYNIPAYPVRO45ZARS5SKS3","bundle":"https://pith.science/pith/MT6QYYNIPAYPVRO45ZARS5SKS3/bundle.json","state":"https://pith.science/pith/MT6QYYNIPAYPVRO45ZARS5SKS3/state.json","well_known_bundle":"https://pith.science/.well-known/pith/MT6QYYNIPAYPVRO45ZARS5SKS3/bundle.json"},"state":{"state_type":"pith_open_graph_state","state_version":"1.0","pith_number":"pith:2018:MT6QYYNIPAYPVRO45ZARS5SKS3","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":"790bc373138d101a8c7fdf1572d28889351afe6265deaea0c4ae2ea6c2108f20","cross_cats_sorted":[],"license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"astro-ph.SR","submitted_at":"2018-09-13T03:16:21Z","title_canon_sha256":"1a572f6c513c3f873be5ce97cff28960c00607a5d174c02a94cc80b83976b4b8"},"schema_version":"1.0","source":{"id":"1809.04753","kind":"arxiv","version":1}},"source_aliases":[{"alias_kind":"arxiv","alias_value":"1809.04753","created_at":"2026-05-18T00:01:28Z"},{"alias_kind":"arxiv_version","alias_value":"1809.04753v1","created_at":"2026-05-18T00:01:28Z"},{"alias_kind":"doi","alias_value":"10.48550/arxiv.1809.04753","created_at":"2026-05-18T00:01:28Z"},{"alias_kind":"pith_short_12","alias_value":"MT6QYYNIPAYP","created_at":"2026-05-18T12:32:40Z"},{"alias_kind":"pith_short_16","alias_value":"MT6QYYNIPAYPVRO4","created_at":"2026-05-18T12:32:40Z"},{"alias_kind":"pith_short_8","alias_value":"MT6QYYNI","created_at":"2026-05-18T12:32:40Z"}],"graph_snapshots":[{"event_id":"sha256:a6741daa22c611473eaa4f81f4ee3c963798b79d34748243db257c820748df22","target":"graph","created_at":"2026-05-18T00:01:28Z","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":"The spectrum of gyrosynchrotron emission from solar flares generally peaks in the microwave range. Its optically-thin, high-frequency component, above the spectral peak, is often used for diagnostics of the nonthermal electrons and the magnetic field in the radio source. Under favorable conditions, its low-frequency counterpart brings additional, complementary information about these parameters as well as thermal plasma diagnostics, either through gyrosynchrotron self-absorption, free-free absorption by the thermal plasma, or the suppression of emission through the so-called Razin effect. Howe","authors_text":"Dale E. Gary, Gelu M. Nita, Gregory D. Fleishman, Maria A. Loukitcheva, Varvara Yu. Kopnina","cross_cats":[],"headline":"","license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"astro-ph.SR","submitted_at":"2018-09-13T03:16:21Z","title":"The coronal volume of energetic particles in solar flares as revealed by microwave imaging"},"references":{"count":0,"internal_anchors":0,"resolved_work":0,"sample":[],"snapshot_sha256":"258153158e38e3291e3d48162225fcdb2d5a3ed65a07baac614ab91432fd4f57"},"source":{"id":"1809.04753","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":"sha256:5b5b5717cd751990c3ffa6cd6a9cc2ec9dfbef2713aca04ee6216247a4bfe2bc","target":"record","created_at":"2026-05-18T00:01:28Z","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":"790bc373138d101a8c7fdf1572d28889351afe6265deaea0c4ae2ea6c2108f20","cross_cats_sorted":[],"license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"astro-ph.SR","submitted_at":"2018-09-13T03:16:21Z","title_canon_sha256":"1a572f6c513c3f873be5ce97cff28960c00607a5d174c02a94cc80b83976b4b8"},"schema_version":"1.0","source":{"id":"1809.04753","kind":"arxiv","version":1}},"canonical_sha256":"64fd0c61a87830fac5dcee4119764a96eb64b5d229b07b034ff5bb43c2f9a726","receipt":{"algorithm":"ed25519","builder_version":"pith-number-builder-2026-05-17-v1","canonical_sha256":"64fd0c61a87830fac5dcee4119764a96eb64b5d229b07b034ff5bb43c2f9a726","first_computed_at":"2026-05-18T00:01:28.352854Z","key_id":"pith-v1-2026-05","kind":"pith_receipt","last_reissued_at":"2026-05-18T00:01:28.352854Z","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54","receipt_version":"0.3","signature_b64":"EaRjYqqarzqo0sWrglrS6Cuki7Tf1F1YeqbR7sanUpYUwGk6g35vzPtRR0JBvn3skJEawMdMoV6rU5x5xHK4Ag==","signature_status":"signed_v1","signed_at":"2026-05-18T00:01:28.353535Z","signed_message":"canonical_sha256_bytes"},"source_id":"1809.04753","source_kind":"arxiv","source_version":1}}},"equivocations":[],"invalid_events":[],"applied_event_ids":["sha256:5b5b5717cd751990c3ffa6cd6a9cc2ec9dfbef2713aca04ee6216247a4bfe2bc","sha256:a6741daa22c611473eaa4f81f4ee3c963798b79d34748243db257c820748df22"],"state_sha256":"12ee8ce90a51b469f8ca80a91002fe80993b5af0059ef5516346dddee1a205fd"},"bundle_signature":{"signature_status":"signed_v1","algorithm":"ed25519","key_id":"pith-v1-2026-05","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54","signature_b64":"AfVUw4P+xG5Us/Yi1jw8iscQWtdOujNJD22TwL4aEy3MDd5TNDHDFfg1NlwUJ9Ffr5WpgNhTw+RwzBs4MU0lDQ==","signed_message":"bundle_sha256_bytes","signed_at":"2026-06-09T04:56:23.483282Z","bundle_sha256":"2ff222ff616bd32b63d142e68d14ac71ccf2726e50296b62e7a4681e55c7e7d5"}}