{"bundle_type":"pith_open_graph_bundle","bundle_version":"1.0","pith_number":"pith:2011:4WVKPG3CAQZIQIBOUAEW4OWHXU","short_pith_number":"pith:4WVKPG3C","canonical_record":{"source":{"id":"1110.2556","kind":"arxiv","version":2},"metadata":{"license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"astro-ph.SR","submitted_at":"2011-10-12T02:47:23Z","cross_cats_sorted":[],"title_canon_sha256":"4e464d8d15b19f6596c21a709a9c1049770b1f7b6bd173975b5eb4d49122799e","abstract_canon_sha256":"b07a2b1bead25c9d1d73aa982ee57f9ce28469da80f496e7343054804bd9624d"},"schema_version":"1.0"},"canonical_sha256":"e5aaa79b62043288202ea0096e3ac7bd164110c1a1d16c69609a2796854172e5","source":{"kind":"arxiv","id":"1110.2556","version":2},"source_aliases":[{"alias_kind":"arxiv","alias_value":"1110.2556","created_at":"2026-05-18T02:00:13Z"},{"alias_kind":"arxiv_version","alias_value":"1110.2556v2","created_at":"2026-05-18T02:00:13Z"},{"alias_kind":"doi","alias_value":"10.48550/arxiv.1110.2556","created_at":"2026-05-18T02:00:13Z"},{"alias_kind":"pith_short_12","alias_value":"4WVKPG3CAQZI","created_at":"2026-05-18T12:26:20Z"},{"alias_kind":"pith_short_16","alias_value":"4WVKPG3CAQZIQIBO","created_at":"2026-05-18T12:26:20Z"},{"alias_kind":"pith_short_8","alias_value":"4WVKPG3C","created_at":"2026-05-18T12:26:20Z"}],"events":[{"event_type":"record_created","subject_pith_number":"pith:2011:4WVKPG3CAQZIQIBOUAEW4OWHXU","target":"record","payload":{"canonical_record":{"source":{"id":"1110.2556","kind":"arxiv","version":2},"metadata":{"license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"astro-ph.SR","submitted_at":"2011-10-12T02:47:23Z","cross_cats_sorted":[],"title_canon_sha256":"4e464d8d15b19f6596c21a709a9c1049770b1f7b6bd173975b5eb4d49122799e","abstract_canon_sha256":"b07a2b1bead25c9d1d73aa982ee57f9ce28469da80f496e7343054804bd9624d"},"schema_version":"1.0"},"canonical_sha256":"e5aaa79b62043288202ea0096e3ac7bd164110c1a1d16c69609a2796854172e5","receipt":{"kind":"pith_receipt","key_id":"pith-v1-2026-05","algorithm":"ed25519","signed_at":"2026-05-18T02:00:13.398297Z","signature_b64":"5uGBPEkmPqw8fuG8MWO/2hWH2UAC0E3LYNBpWOnWx2MRU/6JwHa2icHKc58ztwDfhA0uQiTzRZWb8UM6/N8+Bw==","signed_message":"canonical_sha256_bytes","builder_version":"pith-number-builder-2026-05-17-v1","receipt_version":"0.3","canonical_sha256":"e5aaa79b62043288202ea0096e3ac7bd164110c1a1d16c69609a2796854172e5","last_reissued_at":"2026-05-18T02:00:13.397664Z","signature_status":"signed_v1","first_computed_at":"2026-05-18T02:00:13.397664Z","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54"},"source_kind":"arxiv","source_id":"1110.2556","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":"2026-05-18T02:00:13Z","supersedes":[],"prev_event":null,"signature":{"signature_status":"signed_v1","algorithm":"ed25519","key_id":"pith-v1-2026-05","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54","signature_b64":"O6dNysj7+kNpyvPvlb7emwecfJjgDssf2GHWqY8nqFu7TY58XkhqSdIpPLDAj5ZxIO6ZsDtEtMPvuJgrfYajCw==","signed_message":"open_graph_event_sha256_bytes","signed_at":"2026-05-29T20:02:29.417784Z"},"content_sha256":"67f6ced33327b4327d5a5dfaa9289e6e19f8b7f9a3ce01d7d01751db72e86694","schema_version":"1.0","event_id":"sha256:67f6ced33327b4327d5a5dfaa9289e6e19f8b7f9a3ce01d7d01751db72e86694"},{"event_type":"graph_snapshot","subject_pith_number":"pith:2011:4WVKPG3CAQZIQIBOUAEW4OWHXU","target":"graph","payload":{"graph_snapshot":{"paper":{"title":"Frequency drifts of 3-min oscillations in microwave and EUV emission above sunspots","license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","headline":"","cross_cats":[],"primary_cat":"astro-ph.SR","authors_text":"K.Shibasaki, R. Sych, S.A. Anfinogentov, T. V. Zaqarashvili, V. M. Nakariakov, Y. Yan","submitted_at":"2011-10-12T02:47:23Z","abstract_excerpt":"We analyse 3-min oscillations of microwave and EUV emission generated at different heights of a sunspot atmosphere, studying the amplitude and frequency modulation of the oscillations, and its relationship with the variation of the spatial structure of the oscillations. High-resolution data obtained with the Nobeyama Radioheliograph, TRACE and SDO/AIA are analysed with the use of the Pixelised Wavelet Filtering and wavelet skeleton techniques. 3-min oscillations in sunspots appear in the form of repetitive trains of the duration 8-20 min (13 min in average). The typical interval between the tr"},"claims":{"count":0,"items":[],"snapshot_sha256":"258153158e38e3291e3d48162225fcdb2d5a3ed65a07baac614ab91432fd4f57"},"source":{"id":"1110.2556","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":""},"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":"2026-05-18T02:00:13Z","supersedes":[],"prev_event":null,"signature":{"signature_status":"signed_v1","algorithm":"ed25519","key_id":"pith-v1-2026-05","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54","signature_b64":"R5nRps413bwXfZ4HqR+FLcQKYLJLBDua8SPJtblLpXS6pwo5sYdTzxwPlS1z2mpqEBRD41I8CPmZKex+9AGBCw==","signed_message":"open_graph_event_sha256_bytes","signed_at":"2026-05-29T20:02:29.418286Z"},"content_sha256":"43387a040e3c38df6d20c02f44e0d527ca7c36a8b318d4eda12e1f5d980ad7cb","schema_version":"1.0","event_id":"sha256:43387a040e3c38df6d20c02f44e0d527ca7c36a8b318d4eda12e1f5d980ad7cb"}],"timestamp_proofs":[],"mirror_hints":[{"mirror_type":"https","name":"Pith Resolver","base_url":"https://pith.science","bundle_url":"https://pith.science/pith/4WVKPG3CAQZIQIBOUAEW4OWHXU/bundle.json","state_url":"https://pith.science/pith/4WVKPG3CAQZIQIBOUAEW4OWHXU/state.json","well_known_bundle_url":"https://pith.science/.well-known/pith/4WVKPG3CAQZIQIBOUAEW4OWHXU/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":"2026-05-29T20:02:29Z","links":{"resolver":"https://pith.science/pith/4WVKPG3CAQZIQIBOUAEW4OWHXU","bundle":"https://pith.science/pith/4WVKPG3CAQZIQIBOUAEW4OWHXU/bundle.json","state":"https://pith.science/pith/4WVKPG3CAQZIQIBOUAEW4OWHXU/state.json","well_known_bundle":"https://pith.science/.well-known/pith/4WVKPG3CAQZIQIBOUAEW4OWHXU/bundle.json"},"state":{"state_type":"pith_open_graph_state","state_version":"1.0","pith_number":"pith:2011:4WVKPG3CAQZIQIBOUAEW4OWHXU","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":"b07a2b1bead25c9d1d73aa982ee57f9ce28469da80f496e7343054804bd9624d","cross_cats_sorted":[],"license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"astro-ph.SR","submitted_at":"2011-10-12T02:47:23Z","title_canon_sha256":"4e464d8d15b19f6596c21a709a9c1049770b1f7b6bd173975b5eb4d49122799e"},"schema_version":"1.0","source":{"id":"1110.2556","kind":"arxiv","version":2}},"source_aliases":[{"alias_kind":"arxiv","alias_value":"1110.2556","created_at":"2026-05-18T02:00:13Z"},{"alias_kind":"arxiv_version","alias_value":"1110.2556v2","created_at":"2026-05-18T02:00:13Z"},{"alias_kind":"doi","alias_value":"10.48550/arxiv.1110.2556","created_at":"2026-05-18T02:00:13Z"},{"alias_kind":"pith_short_12","alias_value":"4WVKPG3CAQZI","created_at":"2026-05-18T12:26:20Z"},{"alias_kind":"pith_short_16","alias_value":"4WVKPG3CAQZIQIBO","created_at":"2026-05-18T12:26:20Z"},{"alias_kind":"pith_short_8","alias_value":"4WVKPG3C","created_at":"2026-05-18T12:26:20Z"}],"graph_snapshots":[{"event_id":"sha256:43387a040e3c38df6d20c02f44e0d527ca7c36a8b318d4eda12e1f5d980ad7cb","target":"graph","created_at":"2026-05-18T02:00:13Z","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":"We analyse 3-min oscillations of microwave and EUV emission generated at different heights of a sunspot atmosphere, studying the amplitude and frequency modulation of the oscillations, and its relationship with the variation of the spatial structure of the oscillations. High-resolution data obtained with the Nobeyama Radioheliograph, TRACE and SDO/AIA are analysed with the use of the Pixelised Wavelet Filtering and wavelet skeleton techniques. 3-min oscillations in sunspots appear in the form of repetitive trains of the duration 8-20 min (13 min in average). The typical interval between the tr","authors_text":"K.Shibasaki, R. Sych, S.A. Anfinogentov, T. V. Zaqarashvili, V. M. Nakariakov, Y. Yan","cross_cats":[],"headline":"","license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"astro-ph.SR","submitted_at":"2011-10-12T02:47:23Z","title":"Frequency drifts of 3-min oscillations in microwave and EUV emission above sunspots"},"references":{"count":0,"internal_anchors":0,"resolved_work":0,"sample":[],"snapshot_sha256":"258153158e38e3291e3d48162225fcdb2d5a3ed65a07baac614ab91432fd4f57"},"source":{"id":"1110.2556","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":"sha256:67f6ced33327b4327d5a5dfaa9289e6e19f8b7f9a3ce01d7d01751db72e86694","target":"record","created_at":"2026-05-18T02:00:13Z","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":"b07a2b1bead25c9d1d73aa982ee57f9ce28469da80f496e7343054804bd9624d","cross_cats_sorted":[],"license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"astro-ph.SR","submitted_at":"2011-10-12T02:47:23Z","title_canon_sha256":"4e464d8d15b19f6596c21a709a9c1049770b1f7b6bd173975b5eb4d49122799e"},"schema_version":"1.0","source":{"id":"1110.2556","kind":"arxiv","version":2}},"canonical_sha256":"e5aaa79b62043288202ea0096e3ac7bd164110c1a1d16c69609a2796854172e5","receipt":{"algorithm":"ed25519","builder_version":"pith-number-builder-2026-05-17-v1","canonical_sha256":"e5aaa79b62043288202ea0096e3ac7bd164110c1a1d16c69609a2796854172e5","first_computed_at":"2026-05-18T02:00:13.397664Z","key_id":"pith-v1-2026-05","kind":"pith_receipt","last_reissued_at":"2026-05-18T02:00:13.397664Z","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54","receipt_version":"0.3","signature_b64":"5uGBPEkmPqw8fuG8MWO/2hWH2UAC0E3LYNBpWOnWx2MRU/6JwHa2icHKc58ztwDfhA0uQiTzRZWb8UM6/N8+Bw==","signature_status":"signed_v1","signed_at":"2026-05-18T02:00:13.398297Z","signed_message":"canonical_sha256_bytes"},"source_id":"1110.2556","source_kind":"arxiv","source_version":2}}},"equivocations":[],"invalid_events":[],"applied_event_ids":["sha256:67f6ced33327b4327d5a5dfaa9289e6e19f8b7f9a3ce01d7d01751db72e86694","sha256:43387a040e3c38df6d20c02f44e0d527ca7c36a8b318d4eda12e1f5d980ad7cb"],"state_sha256":"76d5b0db4ae4ad456e8d15f984ffe3aafce356f52dcd14df85df798c493f79ff"},"bundle_signature":{"signature_status":"signed_v1","algorithm":"ed25519","key_id":"pith-v1-2026-05","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54","signature_b64":"IxAi+M+j4Lry4OAg4rYF0ab3tfJ620OXXEQtm3wSYZeIA2RqzVdI2v/h1qC5sSMTE/fPVzHKlXm0bIuiRPEaBA==","signed_message":"bundle_sha256_bytes","signed_at":"2026-05-29T20:02:29.420560Z","bundle_sha256":"93c2be0dbd3c9aa2bfead3393f730201dba725cfe5a570afc038c4db85220cbe"}}