{"bundle_type":"pith_open_graph_bundle","bundle_version":"1.0","pith_number":"pith:2015:UA2P2SSA6TQXWDCA3MU6HZ6FCR","short_pith_number":"pith:UA2P2SSA","canonical_record":{"source":{"id":"1510.03275","kind":"arxiv","version":1},"metadata":{"license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"astro-ph.SR","submitted_at":"2015-10-12T13:25:20Z","cross_cats_sorted":[],"title_canon_sha256":"6407b0e5a1426d83a2b8b1489e5a02a8c42abab0538c2d474be12e74b12c8a59","abstract_canon_sha256":"a9b07490572cbf5ff01d73e0b0a7a47f19c81ae17eb5c90323e220a628e72b3e"},"schema_version":"1.0"},"canonical_sha256":"a034fd4a40f4e17b0c40db29e3e7c5147921c0c10ee399b81b1165e2a2bda596","source":{"kind":"arxiv","id":"1510.03275","version":1},"source_aliases":[{"alias_kind":"arxiv","alias_value":"1510.03275","created_at":"2026-05-18T01:30:32Z"},{"alias_kind":"arxiv_version","alias_value":"1510.03275v1","created_at":"2026-05-18T01:30:32Z"},{"alias_kind":"doi","alias_value":"10.48550/arxiv.1510.03275","created_at":"2026-05-18T01:30:32Z"},{"alias_kind":"pith_short_12","alias_value":"UA2P2SSA6TQX","created_at":"2026-05-18T12:29:44Z"},{"alias_kind":"pith_short_16","alias_value":"UA2P2SSA6TQXWDCA","created_at":"2026-05-18T12:29:44Z"},{"alias_kind":"pith_short_8","alias_value":"UA2P2SSA","created_at":"2026-05-18T12:29:44Z"}],"events":[{"event_type":"record_created","subject_pith_number":"pith:2015:UA2P2SSA6TQXWDCA3MU6HZ6FCR","target":"record","payload":{"canonical_record":{"source":{"id":"1510.03275","kind":"arxiv","version":1},"metadata":{"license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"astro-ph.SR","submitted_at":"2015-10-12T13:25:20Z","cross_cats_sorted":[],"title_canon_sha256":"6407b0e5a1426d83a2b8b1489e5a02a8c42abab0538c2d474be12e74b12c8a59","abstract_canon_sha256":"a9b07490572cbf5ff01d73e0b0a7a47f19c81ae17eb5c90323e220a628e72b3e"},"schema_version":"1.0"},"canonical_sha256":"a034fd4a40f4e17b0c40db29e3e7c5147921c0c10ee399b81b1165e2a2bda596","receipt":{"kind":"pith_receipt","key_id":"pith-v1-2026-05","algorithm":"ed25519","signed_at":"2026-05-18T01:30:32.281731Z","signature_b64":"MgYq1ZPrsicAKkDyRTilQTU4BqH3Q3Ec/VmMyo21gw1XJBZrIw0Dqq/gaXNxsuOS2dPz0AmLGl3GrG3CcwS3Cg==","signed_message":"canonical_sha256_bytes","builder_version":"pith-number-builder-2026-05-17-v1","receipt_version":"0.3","canonical_sha256":"a034fd4a40f4e17b0c40db29e3e7c5147921c0c10ee399b81b1165e2a2bda596","last_reissued_at":"2026-05-18T01:30:32.281180Z","signature_status":"signed_v1","first_computed_at":"2026-05-18T01:30:32.281180Z","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54"},"source_kind":"arxiv","source_id":"1510.03275","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":"2026-05-18T01:30:32Z","supersedes":[],"prev_event":null,"signature":{"signature_status":"signed_v1","algorithm":"ed25519","key_id":"pith-v1-2026-05","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54","signature_b64":"EBe6Xf0iQfswNLpsWkGZafrQgOtkYFv94XX26OeKsgVuVYPFy7oNaXigjAzsAbFEVvgZiYQE7MPZ6XcQ7sGIDA==","signed_message":"open_graph_event_sha256_bytes","signed_at":"2026-06-09T17:14:13.823884Z"},"content_sha256":"536adb144d4c4d7a08b62adc9ea4313f162f24e9667d943e349cc5f984e8b5ff","schema_version":"1.0","event_id":"sha256:536adb144d4c4d7a08b62adc9ea4313f162f24e9667d943e349cc5f984e8b5ff"},{"event_type":"graph_snapshot","subject_pith_number":"pith:2015:UA2P2SSA6TQXWDCA3MU6HZ6FCR","target":"graph","payload":{"graph_snapshot":{"paper":{"title":"On the Source of Propagating Slow Magneto-acoustic Waves in Sunspots","license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","headline":"","cross_cats":[],"primary_cat":"astro-ph.SR","authors_text":"D. B. Jess, Elena Khomenko, S. Krishna Prasad","submitted_at":"2015-10-12T13:25:20Z","abstract_excerpt":"Recent high-resolution observations of sunspot oscillations using simultaneously operated ground- and space-based telescopes reveal the intrinsic connection between different layers of the solar atmosphere. However, it is not clear whether these oscillations are externally driven or generated in-situ. We address this question by using observations of propagating slow magneto-acoustic waves along a coronal fan loop system. In addition to the generally observed decreases in oscillation amplitudes with distance, the observed wave amplitudes are also found to be modulated with time, with similar v"},"claims":{"count":0,"items":[],"snapshot_sha256":"258153158e38e3291e3d48162225fcdb2d5a3ed65a07baac614ab91432fd4f57"},"source":{"id":"1510.03275","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":"2026-05-18T01:30:32Z","supersedes":[],"prev_event":null,"signature":{"signature_status":"signed_v1","algorithm":"ed25519","key_id":"pith-v1-2026-05","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54","signature_b64":"O2X9PB2c0cWCJk3JVbEnV5j7gAmgF8KjYpDO0hKzIWHy7vmXpHQ4jG77I/6DwPh/nEWEG/720bZ8lvmevqUiDQ==","signed_message":"open_graph_event_sha256_bytes","signed_at":"2026-06-09T17:14:13.824633Z"},"content_sha256":"c0d4dc425b79bfee37adef3da784c49fabc4826144ab5f0349e7851596a34792","schema_version":"1.0","event_id":"sha256:c0d4dc425b79bfee37adef3da784c49fabc4826144ab5f0349e7851596a34792"}],"timestamp_proofs":[],"mirror_hints":[{"mirror_type":"https","name":"Pith Resolver","base_url":"https://pith.science","bundle_url":"https://pith.science/pith/UA2P2SSA6TQXWDCA3MU6HZ6FCR/bundle.json","state_url":"https://pith.science/pith/UA2P2SSA6TQXWDCA3MU6HZ6FCR/state.json","well_known_bundle_url":"https://pith.science/.well-known/pith/UA2P2SSA6TQXWDCA3MU6HZ6FCR/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":"2026-06-09T17:14:13Z","links":{"resolver":"https://pith.science/pith/UA2P2SSA6TQXWDCA3MU6HZ6FCR","bundle":"https://pith.science/pith/UA2P2SSA6TQXWDCA3MU6HZ6FCR/bundle.json","state":"https://pith.science/pith/UA2P2SSA6TQXWDCA3MU6HZ6FCR/state.json","well_known_bundle":"https://pith.science/.well-known/pith/UA2P2SSA6TQXWDCA3MU6HZ6FCR/bundle.json"},"state":{"state_type":"pith_open_graph_state","state_version":"1.0","pith_number":"pith:2015:UA2P2SSA6TQXWDCA3MU6HZ6FCR","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":"a9b07490572cbf5ff01d73e0b0a7a47f19c81ae17eb5c90323e220a628e72b3e","cross_cats_sorted":[],"license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"astro-ph.SR","submitted_at":"2015-10-12T13:25:20Z","title_canon_sha256":"6407b0e5a1426d83a2b8b1489e5a02a8c42abab0538c2d474be12e74b12c8a59"},"schema_version":"1.0","source":{"id":"1510.03275","kind":"arxiv","version":1}},"source_aliases":[{"alias_kind":"arxiv","alias_value":"1510.03275","created_at":"2026-05-18T01:30:32Z"},{"alias_kind":"arxiv_version","alias_value":"1510.03275v1","created_at":"2026-05-18T01:30:32Z"},{"alias_kind":"doi","alias_value":"10.48550/arxiv.1510.03275","created_at":"2026-05-18T01:30:32Z"},{"alias_kind":"pith_short_12","alias_value":"UA2P2SSA6TQX","created_at":"2026-05-18T12:29:44Z"},{"alias_kind":"pith_short_16","alias_value":"UA2P2SSA6TQXWDCA","created_at":"2026-05-18T12:29:44Z"},{"alias_kind":"pith_short_8","alias_value":"UA2P2SSA","created_at":"2026-05-18T12:29:44Z"}],"graph_snapshots":[{"event_id":"sha256:c0d4dc425b79bfee37adef3da784c49fabc4826144ab5f0349e7851596a34792","target":"graph","created_at":"2026-05-18T01:30:32Z","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":"Recent high-resolution observations of sunspot oscillations using simultaneously operated ground- and space-based telescopes reveal the intrinsic connection between different layers of the solar atmosphere. However, it is not clear whether these oscillations are externally driven or generated in-situ. We address this question by using observations of propagating slow magneto-acoustic waves along a coronal fan loop system. In addition to the generally observed decreases in oscillation amplitudes with distance, the observed wave amplitudes are also found to be modulated with time, with similar v","authors_text":"D. B. Jess, Elena Khomenko, S. Krishna Prasad","cross_cats":[],"headline":"","license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"astro-ph.SR","submitted_at":"2015-10-12T13:25:20Z","title":"On the Source of Propagating Slow Magneto-acoustic Waves in Sunspots"},"references":{"count":0,"internal_anchors":0,"resolved_work":0,"sample":[],"snapshot_sha256":"258153158e38e3291e3d48162225fcdb2d5a3ed65a07baac614ab91432fd4f57"},"source":{"id":"1510.03275","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":"sha256:536adb144d4c4d7a08b62adc9ea4313f162f24e9667d943e349cc5f984e8b5ff","target":"record","created_at":"2026-05-18T01:30:32Z","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":"a9b07490572cbf5ff01d73e0b0a7a47f19c81ae17eb5c90323e220a628e72b3e","cross_cats_sorted":[],"license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"astro-ph.SR","submitted_at":"2015-10-12T13:25:20Z","title_canon_sha256":"6407b0e5a1426d83a2b8b1489e5a02a8c42abab0538c2d474be12e74b12c8a59"},"schema_version":"1.0","source":{"id":"1510.03275","kind":"arxiv","version":1}},"canonical_sha256":"a034fd4a40f4e17b0c40db29e3e7c5147921c0c10ee399b81b1165e2a2bda596","receipt":{"algorithm":"ed25519","builder_version":"pith-number-builder-2026-05-17-v1","canonical_sha256":"a034fd4a40f4e17b0c40db29e3e7c5147921c0c10ee399b81b1165e2a2bda596","first_computed_at":"2026-05-18T01:30:32.281180Z","key_id":"pith-v1-2026-05","kind":"pith_receipt","last_reissued_at":"2026-05-18T01:30:32.281180Z","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54","receipt_version":"0.3","signature_b64":"MgYq1ZPrsicAKkDyRTilQTU4BqH3Q3Ec/VmMyo21gw1XJBZrIw0Dqq/gaXNxsuOS2dPz0AmLGl3GrG3CcwS3Cg==","signature_status":"signed_v1","signed_at":"2026-05-18T01:30:32.281731Z","signed_message":"canonical_sha256_bytes"},"source_id":"1510.03275","source_kind":"arxiv","source_version":1}}},"equivocations":[],"invalid_events":[],"applied_event_ids":["sha256:536adb144d4c4d7a08b62adc9ea4313f162f24e9667d943e349cc5f984e8b5ff","sha256:c0d4dc425b79bfee37adef3da784c49fabc4826144ab5f0349e7851596a34792"],"state_sha256":"188c31c9ac59a2ff5997c60da6be4f1bb5e1b273b5bae9bf8bdfb69e35cd0e7a"},"bundle_signature":{"signature_status":"signed_v1","algorithm":"ed25519","key_id":"pith-v1-2026-05","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54","signature_b64":"93ThD+7U0uFj7S6AbOUUQYL+uliEfkLQok+T96Lhg/P+HlXFge+cHz6UVaI8UySLeNZ8bmKcghv6M19p00R2CQ==","signed_message":"bundle_sha256_bytes","signed_at":"2026-06-09T17:14:13.828514Z","bundle_sha256":"a1980894288274e368730c16a2230534671e04bc98a2a9b3506d3cbb60a9f351"}}