{"bundle_type":"pith_open_graph_bundle","bundle_version":"1.0","pith_number":"pith:2013:IH4VP47ARSONEQHC3YL4P75K2J","short_pith_number":"pith:IH4VP47A","canonical_record":{"source":{"id":"1312.5079","kind":"arxiv","version":1},"metadata":{"license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"astro-ph.SR","submitted_at":"2013-12-18T09:58:00Z","cross_cats_sorted":[],"title_canon_sha256":"56c589c2c964c346797e4b825c4c4d69a57f6461ffd4138b11ef5941e820c2e4","abstract_canon_sha256":"f7e19493ef8ed1775e65b0cf11e2902618d003b7e5a3b617f6d346d4187a8bf7"},"schema_version":"1.0"},"canonical_sha256":"41f957f3e08c9cd240e2de17c7ffaad268825b78150d80456eae1bb10ebdbfd6","source":{"kind":"arxiv","id":"1312.5079","version":1},"source_aliases":[{"alias_kind":"arxiv","alias_value":"1312.5079","created_at":"2026-05-18T01:45:44Z"},{"alias_kind":"arxiv_version","alias_value":"1312.5079v1","created_at":"2026-05-18T01:45:44Z"},{"alias_kind":"doi","alias_value":"10.48550/arxiv.1312.5079","created_at":"2026-05-18T01:45:44Z"},{"alias_kind":"pith_short_12","alias_value":"IH4VP47ARSON","created_at":"2026-05-18T12:27:46Z"},{"alias_kind":"pith_short_16","alias_value":"IH4VP47ARSONEQHC","created_at":"2026-05-18T12:27:46Z"},{"alias_kind":"pith_short_8","alias_value":"IH4VP47A","created_at":"2026-05-18T12:27:46Z"}],"events":[{"event_type":"record_created","subject_pith_number":"pith:2013:IH4VP47ARSONEQHC3YL4P75K2J","target":"record","payload":{"canonical_record":{"source":{"id":"1312.5079","kind":"arxiv","version":1},"metadata":{"license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"astro-ph.SR","submitted_at":"2013-12-18T09:58:00Z","cross_cats_sorted":[],"title_canon_sha256":"56c589c2c964c346797e4b825c4c4d69a57f6461ffd4138b11ef5941e820c2e4","abstract_canon_sha256":"f7e19493ef8ed1775e65b0cf11e2902618d003b7e5a3b617f6d346d4187a8bf7"},"schema_version":"1.0"},"canonical_sha256":"41f957f3e08c9cd240e2de17c7ffaad268825b78150d80456eae1bb10ebdbfd6","receipt":{"kind":"pith_receipt","key_id":"pith-v1-2026-05","algorithm":"ed25519","signed_at":"2026-05-18T01:45:44.749555Z","signature_b64":"VbkO4TdaG6qcF5GbZzzJ9SyFBJHKSStqMFT3rn23dEozXR6ve7EdWvISy/UmXwof8Y6oV8nA3IxL7PLIXUO5BQ==","signed_message":"canonical_sha256_bytes","builder_version":"pith-number-builder-2026-05-17-v1","receipt_version":"0.3","canonical_sha256":"41f957f3e08c9cd240e2de17c7ffaad268825b78150d80456eae1bb10ebdbfd6","last_reissued_at":"2026-05-18T01:45:44.748985Z","signature_status":"signed_v1","first_computed_at":"2026-05-18T01:45:44.748985Z","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54"},"source_kind":"arxiv","source_id":"1312.5079","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":"2026-05-18T01:45:44Z","supersedes":[],"prev_event":null,"signature":{"signature_status":"signed_v1","algorithm":"ed25519","key_id":"pith-v1-2026-05","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54","signature_b64":"COgV2MPr6xLrHJ+atFWRgsms2majUz1kaJQwQDNO8S2DGSYc4DT6g1OLj1JTsM8h41dJitxLUAr6UmMW8RWNAg==","signed_message":"open_graph_event_sha256_bytes","signed_at":"2026-05-25T11:00:17.668132Z"},"content_sha256":"23c9cf4b6b180e0ee1e6966382519cfc17e198c3ff7a07ab260addd1be7be96d","schema_version":"1.0","event_id":"sha256:23c9cf4b6b180e0ee1e6966382519cfc17e198c3ff7a07ab260addd1be7be96d"},{"event_type":"graph_snapshot","subject_pith_number":"pith:2013:IH4VP47ARSONEQHC3YL4P75K2J","target":"graph","payload":{"graph_snapshot":{"paper":{"title":"The behavior of transverse waves in nonuniform solar flux tubes. II. Implications for coronal loop seismology","license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","headline":"","cross_cats":[],"primary_cat":"astro-ph.SR","authors_text":"Jaume Terradas, Marcel Goossens, Ramon Oliver, Roberto Soler","submitted_at":"2013-12-18T09:58:00Z","abstract_excerpt":"Seismology of coronal loops using observations of damped transverse oscillations in combination with results from theoretical models is a tool to indirectly infer physical parameters in the solar atmospheric plasma. Existing seismology schemes based on approximations to the period and damping time of kink oscillations are often used beyond their theoretical range of applicability. These approximations assume that the variation of density across the loop is confined to a nonuniform layer much thinner than the radius of the loop, but the results of the inversion problem often do not satisfy this"},"claims":{"count":0,"items":[],"snapshot_sha256":"258153158e38e3291e3d48162225fcdb2d5a3ed65a07baac614ab91432fd4f57"},"source":{"id":"1312.5079","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":"2026-05-18T01:45:44Z","supersedes":[],"prev_event":null,"signature":{"signature_status":"signed_v1","algorithm":"ed25519","key_id":"pith-v1-2026-05","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54","signature_b64":"OSCsrq7NX+G/G7Xrfki9gV0+vUZUuTv9GNIzfaq5W+FelVnWTkzU17DjkmbV8yrULRv8l6B9Ng5mxs7yGMwaBQ==","signed_message":"open_graph_event_sha256_bytes","signed_at":"2026-05-25T11:00:17.668844Z"},"content_sha256":"c7f4b230b510dd8e29ac28c0e927aac2516e875ce3f35dee6385e5453bb9bd71","schema_version":"1.0","event_id":"sha256:c7f4b230b510dd8e29ac28c0e927aac2516e875ce3f35dee6385e5453bb9bd71"}],"timestamp_proofs":[],"mirror_hints":[{"mirror_type":"https","name":"Pith Resolver","base_url":"https://pith.science","bundle_url":"https://pith.science/pith/IH4VP47ARSONEQHC3YL4P75K2J/bundle.json","state_url":"https://pith.science/pith/IH4VP47ARSONEQHC3YL4P75K2J/state.json","well_known_bundle_url":"https://pith.science/.well-known/pith/IH4VP47ARSONEQHC3YL4P75K2J/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":"2026-05-25T11:00:17Z","links":{"resolver":"https://pith.science/pith/IH4VP47ARSONEQHC3YL4P75K2J","bundle":"https://pith.science/pith/IH4VP47ARSONEQHC3YL4P75K2J/bundle.json","state":"https://pith.science/pith/IH4VP47ARSONEQHC3YL4P75K2J/state.json","well_known_bundle":"https://pith.science/.well-known/pith/IH4VP47ARSONEQHC3YL4P75K2J/bundle.json"},"state":{"state_type":"pith_open_graph_state","state_version":"1.0","pith_number":"pith:2013:IH4VP47ARSONEQHC3YL4P75K2J","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":"f7e19493ef8ed1775e65b0cf11e2902618d003b7e5a3b617f6d346d4187a8bf7","cross_cats_sorted":[],"license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"astro-ph.SR","submitted_at":"2013-12-18T09:58:00Z","title_canon_sha256":"56c589c2c964c346797e4b825c4c4d69a57f6461ffd4138b11ef5941e820c2e4"},"schema_version":"1.0","source":{"id":"1312.5079","kind":"arxiv","version":1}},"source_aliases":[{"alias_kind":"arxiv","alias_value":"1312.5079","created_at":"2026-05-18T01:45:44Z"},{"alias_kind":"arxiv_version","alias_value":"1312.5079v1","created_at":"2026-05-18T01:45:44Z"},{"alias_kind":"doi","alias_value":"10.48550/arxiv.1312.5079","created_at":"2026-05-18T01:45:44Z"},{"alias_kind":"pith_short_12","alias_value":"IH4VP47ARSON","created_at":"2026-05-18T12:27:46Z"},{"alias_kind":"pith_short_16","alias_value":"IH4VP47ARSONEQHC","created_at":"2026-05-18T12:27:46Z"},{"alias_kind":"pith_short_8","alias_value":"IH4VP47A","created_at":"2026-05-18T12:27:46Z"}],"graph_snapshots":[{"event_id":"sha256:c7f4b230b510dd8e29ac28c0e927aac2516e875ce3f35dee6385e5453bb9bd71","target":"graph","created_at":"2026-05-18T01:45:44Z","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":"Seismology of coronal loops using observations of damped transverse oscillations in combination with results from theoretical models is a tool to indirectly infer physical parameters in the solar atmospheric plasma. Existing seismology schemes based on approximations to the period and damping time of kink oscillations are often used beyond their theoretical range of applicability. These approximations assume that the variation of density across the loop is confined to a nonuniform layer much thinner than the radius of the loop, but the results of the inversion problem often do not satisfy this","authors_text":"Jaume Terradas, Marcel Goossens, Ramon Oliver, Roberto Soler","cross_cats":[],"headline":"","license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"astro-ph.SR","submitted_at":"2013-12-18T09:58:00Z","title":"The behavior of transverse waves in nonuniform solar flux tubes. II. Implications for coronal loop seismology"},"references":{"count":0,"internal_anchors":0,"resolved_work":0,"sample":[],"snapshot_sha256":"258153158e38e3291e3d48162225fcdb2d5a3ed65a07baac614ab91432fd4f57"},"source":{"id":"1312.5079","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":"sha256:23c9cf4b6b180e0ee1e6966382519cfc17e198c3ff7a07ab260addd1be7be96d","target":"record","created_at":"2026-05-18T01:45:44Z","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":"f7e19493ef8ed1775e65b0cf11e2902618d003b7e5a3b617f6d346d4187a8bf7","cross_cats_sorted":[],"license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"astro-ph.SR","submitted_at":"2013-12-18T09:58:00Z","title_canon_sha256":"56c589c2c964c346797e4b825c4c4d69a57f6461ffd4138b11ef5941e820c2e4"},"schema_version":"1.0","source":{"id":"1312.5079","kind":"arxiv","version":1}},"canonical_sha256":"41f957f3e08c9cd240e2de17c7ffaad268825b78150d80456eae1bb10ebdbfd6","receipt":{"algorithm":"ed25519","builder_version":"pith-number-builder-2026-05-17-v1","canonical_sha256":"41f957f3e08c9cd240e2de17c7ffaad268825b78150d80456eae1bb10ebdbfd6","first_computed_at":"2026-05-18T01:45:44.748985Z","key_id":"pith-v1-2026-05","kind":"pith_receipt","last_reissued_at":"2026-05-18T01:45:44.748985Z","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54","receipt_version":"0.3","signature_b64":"VbkO4TdaG6qcF5GbZzzJ9SyFBJHKSStqMFT3rn23dEozXR6ve7EdWvISy/UmXwof8Y6oV8nA3IxL7PLIXUO5BQ==","signature_status":"signed_v1","signed_at":"2026-05-18T01:45:44.749555Z","signed_message":"canonical_sha256_bytes"},"source_id":"1312.5079","source_kind":"arxiv","source_version":1}}},"equivocations":[],"invalid_events":[],"applied_event_ids":["sha256:23c9cf4b6b180e0ee1e6966382519cfc17e198c3ff7a07ab260addd1be7be96d","sha256:c7f4b230b510dd8e29ac28c0e927aac2516e875ce3f35dee6385e5453bb9bd71"],"state_sha256":"beda6f82d8c06737ac0d014bdfacdc8a080d267f570b2dbb6cab9cc6e72eabb2"},"bundle_signature":{"signature_status":"signed_v1","algorithm":"ed25519","key_id":"pith-v1-2026-05","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54","signature_b64":"I1NLB6kHme2CTw9AzGb5y9yV1I4VAYMBAEHo+6ytINCcFNJuCA5vvz+CdP3G6Ws0wEmWdE7sLncbmwtRQGLTDA==","signed_message":"bundle_sha256_bytes","signed_at":"2026-05-25T11:00:17.672425Z","bundle_sha256":"a44308164b755ab458e80e0cf67d89cb3a599b98643260cb6cc91646b482c80b"}}