{"bundle_type":"pith_open_graph_bundle","bundle_version":"1.0","pith_number":"pith:2014:ZXU3XBAVMEHEN4TLEIJCUBV2JW","short_pith_number":"pith:ZXU3XBAV","canonical_record":{"source":{"id":"1407.1544","kind":"arxiv","version":1},"metadata":{"license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"astro-ph.SR","submitted_at":"2014-07-06T20:50:52Z","cross_cats_sorted":[],"title_canon_sha256":"1b86d466ee2422a59dbe207dc36ebb2fd36ede0c69c5addea57eb0bbe8e46c1b","abstract_canon_sha256":"4485ea2fc96123eb59b5ed7e33ecf890469aad1d9e3c1b4d918fc079a3e02997"},"schema_version":"1.0"},"canonical_sha256":"cde9bb8415610e46f26b22122a06ba4dbcef85e444f16b36ce69552e69f7dc50","source":{"kind":"arxiv","id":"1407.1544","version":1},"source_aliases":[{"alias_kind":"arxiv","alias_value":"1407.1544","created_at":"2026-05-18T01:42:41Z"},{"alias_kind":"arxiv_version","alias_value":"1407.1544v1","created_at":"2026-05-18T01:42:41Z"},{"alias_kind":"doi","alias_value":"10.48550/arxiv.1407.1544","created_at":"2026-05-18T01:42:41Z"},{"alias_kind":"pith_short_12","alias_value":"ZXU3XBAVMEHE","created_at":"2026-05-18T12:28:59Z"},{"alias_kind":"pith_short_16","alias_value":"ZXU3XBAVMEHEN4TL","created_at":"2026-05-18T12:28:59Z"},{"alias_kind":"pith_short_8","alias_value":"ZXU3XBAV","created_at":"2026-05-18T12:28:59Z"}],"events":[{"event_type":"record_created","subject_pith_number":"pith:2014:ZXU3XBAVMEHEN4TLEIJCUBV2JW","target":"record","payload":{"canonical_record":{"source":{"id":"1407.1544","kind":"arxiv","version":1},"metadata":{"license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"astro-ph.SR","submitted_at":"2014-07-06T20:50:52Z","cross_cats_sorted":[],"title_canon_sha256":"1b86d466ee2422a59dbe207dc36ebb2fd36ede0c69c5addea57eb0bbe8e46c1b","abstract_canon_sha256":"4485ea2fc96123eb59b5ed7e33ecf890469aad1d9e3c1b4d918fc079a3e02997"},"schema_version":"1.0"},"canonical_sha256":"cde9bb8415610e46f26b22122a06ba4dbcef85e444f16b36ce69552e69f7dc50","receipt":{"kind":"pith_receipt","key_id":"pith-v1-2026-05","algorithm":"ed25519","signed_at":"2026-05-18T01:42:41.591701Z","signature_b64":"7Mp81shXgSCtnbUeWStgYayXOkMHjbbErtfucMxCKR0SqXNC3EZ3WY99k1MaBHmwfU9kJjSiwX5b4hZ8QHtGAQ==","signed_message":"canonical_sha256_bytes","builder_version":"pith-number-builder-2026-05-17-v1","receipt_version":"0.3","canonical_sha256":"cde9bb8415610e46f26b22122a06ba4dbcef85e444f16b36ce69552e69f7dc50","last_reissued_at":"2026-05-18T01:42:41.591163Z","signature_status":"signed_v1","first_computed_at":"2026-05-18T01:42:41.591163Z","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54"},"source_kind":"arxiv","source_id":"1407.1544","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":"2026-05-18T01:42:41Z","supersedes":[],"prev_event":null,"signature":{"signature_status":"signed_v1","algorithm":"ed25519","key_id":"pith-v1-2026-05","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54","signature_b64":"F+XzMDxECsNO4fx5AkN3si8HC0WAmA5i0+BEfOTK35Y6lapKZ0m6LqYVLhIUFwuuf4602aLQrnRQDnYetDMDBQ==","signed_message":"open_graph_event_sha256_bytes","signed_at":"2026-05-22T13:21:14.199855Z"},"content_sha256":"19c1880a20e392b676a0b3d4d01dc0be8cae9f3218b7e2ad9175de22971e7888","schema_version":"1.0","event_id":"sha256:19c1880a20e392b676a0b3d4d01dc0be8cae9f3218b7e2ad9175de22971e7888"},{"event_type":"graph_snapshot","subject_pith_number":"pith:2014:ZXU3XBAVMEHEN4TLEIJCUBV2JW","target":"graph","payload":{"graph_snapshot":{"paper":{"title":"Oscillations in a sunspot with light bridges","license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","headline":"","cross_cats":[],"primary_cat":"astro-ph.SR","authors_text":"Baolin Tan, Bo Li, Ding Yuan, Jiangtao Su, Valery M. Nakariakov, Yihua Yan, Zhenghua Huang","submitted_at":"2014-07-06T20:50:52Z","abstract_excerpt":"Solar Optical Telescope onboard Hinode observed a sunspot (AR 11836) with two light bridges (LBs) on 31 Aug 2013. We analysed a 2-hour \\ion{Ca}{2} H emission intensity data set and detected strong 5-min oscillation power on both LBs and in the inner penumbra. The time-distance plot reveals that 5-min oscillation phase does not vary significantly along the thin bridge, indicating that the oscillations are likely to originate from the underneath. The slit taken along the central axis of the wide light bridge exhibits a standing wave feature. However, at the centre of the wide bridge, the 5-min o"},"claims":{"count":0,"items":[],"snapshot_sha256":"258153158e38e3291e3d48162225fcdb2d5a3ed65a07baac614ab91432fd4f57"},"source":{"id":"1407.1544","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":"2026-05-18T01:42:41Z","supersedes":[],"prev_event":null,"signature":{"signature_status":"signed_v1","algorithm":"ed25519","key_id":"pith-v1-2026-05","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54","signature_b64":"6d3DlRkXblK4YJwliVl14Jw5Jwk3qB9kxS1OnlZiT2wx2vN1MgWRGa7qg5DHjq/hZpSR7pyRcgjL6p4Zbh/7Dw==","signed_message":"open_graph_event_sha256_bytes","signed_at":"2026-05-22T13:21:14.200541Z"},"content_sha256":"a935cf341b67dcfb9c9c3daf54709fb4d916a24880ce6dc29b6ecb5449523b7f","schema_version":"1.0","event_id":"sha256:a935cf341b67dcfb9c9c3daf54709fb4d916a24880ce6dc29b6ecb5449523b7f"}],"timestamp_proofs":[],"mirror_hints":[{"mirror_type":"https","name":"Pith Resolver","base_url":"https://pith.science","bundle_url":"https://pith.science/pith/ZXU3XBAVMEHEN4TLEIJCUBV2JW/bundle.json","state_url":"https://pith.science/pith/ZXU3XBAVMEHEN4TLEIJCUBV2JW/state.json","well_known_bundle_url":"https://pith.science/.well-known/pith/ZXU3XBAVMEHEN4TLEIJCUBV2JW/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":"2026-05-22T13:21:14Z","links":{"resolver":"https://pith.science/pith/ZXU3XBAVMEHEN4TLEIJCUBV2JW","bundle":"https://pith.science/pith/ZXU3XBAVMEHEN4TLEIJCUBV2JW/bundle.json","state":"https://pith.science/pith/ZXU3XBAVMEHEN4TLEIJCUBV2JW/state.json","well_known_bundle":"https://pith.science/.well-known/pith/ZXU3XBAVMEHEN4TLEIJCUBV2JW/bundle.json"},"state":{"state_type":"pith_open_graph_state","state_version":"1.0","pith_number":"pith:2014:ZXU3XBAVMEHEN4TLEIJCUBV2JW","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":"4485ea2fc96123eb59b5ed7e33ecf890469aad1d9e3c1b4d918fc079a3e02997","cross_cats_sorted":[],"license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"astro-ph.SR","submitted_at":"2014-07-06T20:50:52Z","title_canon_sha256":"1b86d466ee2422a59dbe207dc36ebb2fd36ede0c69c5addea57eb0bbe8e46c1b"},"schema_version":"1.0","source":{"id":"1407.1544","kind":"arxiv","version":1}},"source_aliases":[{"alias_kind":"arxiv","alias_value":"1407.1544","created_at":"2026-05-18T01:42:41Z"},{"alias_kind":"arxiv_version","alias_value":"1407.1544v1","created_at":"2026-05-18T01:42:41Z"},{"alias_kind":"doi","alias_value":"10.48550/arxiv.1407.1544","created_at":"2026-05-18T01:42:41Z"},{"alias_kind":"pith_short_12","alias_value":"ZXU3XBAVMEHE","created_at":"2026-05-18T12:28:59Z"},{"alias_kind":"pith_short_16","alias_value":"ZXU3XBAVMEHEN4TL","created_at":"2026-05-18T12:28:59Z"},{"alias_kind":"pith_short_8","alias_value":"ZXU3XBAV","created_at":"2026-05-18T12:28:59Z"}],"graph_snapshots":[{"event_id":"sha256:a935cf341b67dcfb9c9c3daf54709fb4d916a24880ce6dc29b6ecb5449523b7f","target":"graph","created_at":"2026-05-18T01:42:41Z","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":"Solar Optical Telescope onboard Hinode observed a sunspot (AR 11836) with two light bridges (LBs) on 31 Aug 2013. We analysed a 2-hour \\ion{Ca}{2} H emission intensity data set and detected strong 5-min oscillation power on both LBs and in the inner penumbra. The time-distance plot reveals that 5-min oscillation phase does not vary significantly along the thin bridge, indicating that the oscillations are likely to originate from the underneath. The slit taken along the central axis of the wide light bridge exhibits a standing wave feature. However, at the centre of the wide bridge, the 5-min o","authors_text":"Baolin Tan, Bo Li, Ding Yuan, Jiangtao Su, Valery M. Nakariakov, Yihua Yan, Zhenghua Huang","cross_cats":[],"headline":"","license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"astro-ph.SR","submitted_at":"2014-07-06T20:50:52Z","title":"Oscillations in a sunspot with light bridges"},"references":{"count":0,"internal_anchors":0,"resolved_work":0,"sample":[],"snapshot_sha256":"258153158e38e3291e3d48162225fcdb2d5a3ed65a07baac614ab91432fd4f57"},"source":{"id":"1407.1544","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":"sha256:19c1880a20e392b676a0b3d4d01dc0be8cae9f3218b7e2ad9175de22971e7888","target":"record","created_at":"2026-05-18T01:42:41Z","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":"4485ea2fc96123eb59b5ed7e33ecf890469aad1d9e3c1b4d918fc079a3e02997","cross_cats_sorted":[],"license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"astro-ph.SR","submitted_at":"2014-07-06T20:50:52Z","title_canon_sha256":"1b86d466ee2422a59dbe207dc36ebb2fd36ede0c69c5addea57eb0bbe8e46c1b"},"schema_version":"1.0","source":{"id":"1407.1544","kind":"arxiv","version":1}},"canonical_sha256":"cde9bb8415610e46f26b22122a06ba4dbcef85e444f16b36ce69552e69f7dc50","receipt":{"algorithm":"ed25519","builder_version":"pith-number-builder-2026-05-17-v1","canonical_sha256":"cde9bb8415610e46f26b22122a06ba4dbcef85e444f16b36ce69552e69f7dc50","first_computed_at":"2026-05-18T01:42:41.591163Z","key_id":"pith-v1-2026-05","kind":"pith_receipt","last_reissued_at":"2026-05-18T01:42:41.591163Z","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54","receipt_version":"0.3","signature_b64":"7Mp81shXgSCtnbUeWStgYayXOkMHjbbErtfucMxCKR0SqXNC3EZ3WY99k1MaBHmwfU9kJjSiwX5b4hZ8QHtGAQ==","signature_status":"signed_v1","signed_at":"2026-05-18T01:42:41.591701Z","signed_message":"canonical_sha256_bytes"},"source_id":"1407.1544","source_kind":"arxiv","source_version":1}}},"equivocations":[],"invalid_events":[],"applied_event_ids":["sha256:19c1880a20e392b676a0b3d4d01dc0be8cae9f3218b7e2ad9175de22971e7888","sha256:a935cf341b67dcfb9c9c3daf54709fb4d916a24880ce6dc29b6ecb5449523b7f"],"state_sha256":"d7b2e8fe381a49034ddb8e051adbf9b7ce1b9b313014ea2a7df20aadec9c5335"},"bundle_signature":{"signature_status":"signed_v1","algorithm":"ed25519","key_id":"pith-v1-2026-05","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54","signature_b64":"htG/S8H6DjmMmMPTDm7u5dczWIpvZx6eesac2EdOrPySFfz3acOrrtLtRzqx2fbKjKYuYVmP40DF2kAO99TLCQ==","signed_message":"bundle_sha256_bytes","signed_at":"2026-05-22T13:21:14.203868Z","bundle_sha256":"21cb523b1cac686711ffe7353c4bbf41790c1a92a009c2023dbe4fc2bfa10951"}}