{"bundle_type":"pith_open_graph_bundle","bundle_version":"1.0","pith_number":"pith:2011:Q5HZ6CUEZ4KNAECL4J6KDVMEOI","short_pith_number":"pith:Q5HZ6CUE","canonical_record":{"source":{"id":"1108.3767","kind":"arxiv","version":1},"metadata":{"license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"physics.geo-ph","submitted_at":"2011-08-18T14:37:19Z","cross_cats_sorted":[],"title_canon_sha256":"65a52516542c1178260e1439b4c73a19d056c664858e38b268b2ebd16e5c6055","abstract_canon_sha256":"31540ea35fe1257df6c6313e4feacc4f5a727cbd5ea7fb14e9719417c7bd0a3f"},"schema_version":"1.0"},"canonical_sha256":"874f9f0a84cf14d0104be27ca1d584722252d339136a907d147b1de0077b6bd7","source":{"kind":"arxiv","id":"1108.3767","version":1},"source_aliases":[{"alias_kind":"arxiv","alias_value":"1108.3767","created_at":"2026-05-18T02:00:50Z"},{"alias_kind":"arxiv_version","alias_value":"1108.3767v1","created_at":"2026-05-18T02:00:50Z"},{"alias_kind":"doi","alias_value":"10.48550/arxiv.1108.3767","created_at":"2026-05-18T02:00:50Z"},{"alias_kind":"pith_short_12","alias_value":"Q5HZ6CUEZ4KN","created_at":"2026-05-18T12:26:39Z"},{"alias_kind":"pith_short_16","alias_value":"Q5HZ6CUEZ4KNAECL","created_at":"2026-05-18T12:26:39Z"},{"alias_kind":"pith_short_8","alias_value":"Q5HZ6CUE","created_at":"2026-05-18T12:26:39Z"}],"events":[{"event_type":"record_created","subject_pith_number":"pith:2011:Q5HZ6CUEZ4KNAECL4J6KDVMEOI","target":"record","payload":{"canonical_record":{"source":{"id":"1108.3767","kind":"arxiv","version":1},"metadata":{"license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"physics.geo-ph","submitted_at":"2011-08-18T14:37:19Z","cross_cats_sorted":[],"title_canon_sha256":"65a52516542c1178260e1439b4c73a19d056c664858e38b268b2ebd16e5c6055","abstract_canon_sha256":"31540ea35fe1257df6c6313e4feacc4f5a727cbd5ea7fb14e9719417c7bd0a3f"},"schema_version":"1.0"},"canonical_sha256":"874f9f0a84cf14d0104be27ca1d584722252d339136a907d147b1de0077b6bd7","receipt":{"kind":"pith_receipt","key_id":"pith-v1-2026-05","algorithm":"ed25519","signed_at":"2026-05-18T02:00:50.847389Z","signature_b64":"SLfashm+VLfTd3f1mqkxePQvlEqoNdb1CBXDsuht7TBlZn3RbGaprQu3AkrxFdkKydo3pJvUT/EQUpdF4VfxBw==","signed_message":"canonical_sha256_bytes","builder_version":"pith-number-builder-2026-05-17-v1","receipt_version":"0.3","canonical_sha256":"874f9f0a84cf14d0104be27ca1d584722252d339136a907d147b1de0077b6bd7","last_reissued_at":"2026-05-18T02:00:50.846752Z","signature_status":"signed_v1","first_computed_at":"2026-05-18T02:00:50.846752Z","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54"},"source_kind":"arxiv","source_id":"1108.3767","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":"2026-05-18T02:00:50Z","supersedes":[],"prev_event":null,"signature":{"signature_status":"signed_v1","algorithm":"ed25519","key_id":"pith-v1-2026-05","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54","signature_b64":"5sTgduiclv4PIyeR4fNm255LHZjMNsEdd98rTQz0NEiPjwES+tlp0nhr4+K+bUjErPO6Gn1Qw77S4tnXtzdCDA==","signed_message":"open_graph_event_sha256_bytes","signed_at":"2026-06-24T08:59:23.317503Z"},"content_sha256":"35f7612ff9374354a45b2595df3437ab91db7430465301e372c2dc120812d5a5","schema_version":"1.0","event_id":"sha256:35f7612ff9374354a45b2595df3437ab91db7430465301e372c2dc120812d5a5"},{"event_type":"graph_snapshot","subject_pith_number":"pith:2011:Q5HZ6CUEZ4KNAECL4J6KDVMEOI","target":"graph","payload":{"graph_snapshot":{"paper":{"title":"New Tools for Decomposition of Sea Floor Pressure Data - A Practical Comparison of Modern and Classical Approaches","license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","headline":"","cross_cats":[],"primary_cat":"physics.geo-ph","authors_text":"Heiner Villinger, Matthias Ehrhardt, Stefan Schiffler","submitted_at":"2011-08-18T14:37:19Z","abstract_excerpt":"In recent years more and more long-term broadband data sets are collected in geosciences. Therefore there is an urgent need of algorithms which semi-automatically analyse and decompose these data into separate periods which are associated with different processes. Often Fourier and Wavelet Transform is used to decompose the data into short and long period effects but these fail often because of their simplicity. In this paper we investigate the novel approaches Empircial Mode Decomposition and Sparse Decomposition for long-term sea floor pressure data analysis and compare them with the classic"},"claims":{"count":0,"items":[],"snapshot_sha256":"258153158e38e3291e3d48162225fcdb2d5a3ed65a07baac614ab91432fd4f57"},"source":{"id":"1108.3767","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":"2026-05-18T02:00:50Z","supersedes":[],"prev_event":null,"signature":{"signature_status":"signed_v1","algorithm":"ed25519","key_id":"pith-v1-2026-05","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54","signature_b64":"a+ap96oe2ckakULqbATpcw7iQ1wSbEPnMA+HAwimtLjV9l0hzLOkJE7SiEr/QrQ1cmYQjDUVIGchjHId7OQrBA==","signed_message":"open_graph_event_sha256_bytes","signed_at":"2026-06-24T08:59:23.317854Z"},"content_sha256":"674b26a91fc6b36a9c27df5b8acbc25238f877a1bd796fc01130ef9328006caa","schema_version":"1.0","event_id":"sha256:674b26a91fc6b36a9c27df5b8acbc25238f877a1bd796fc01130ef9328006caa"}],"timestamp_proofs":[],"mirror_hints":[{"mirror_type":"https","name":"Pith Resolver","base_url":"https://pith.science","bundle_url":"https://pith.science/pith/Q5HZ6CUEZ4KNAECL4J6KDVMEOI/bundle.json","state_url":"https://pith.science/pith/Q5HZ6CUEZ4KNAECL4J6KDVMEOI/state.json","well_known_bundle_url":"https://pith.science/.well-known/pith/Q5HZ6CUEZ4KNAECL4J6KDVMEOI/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":"2026-06-24T08:59:23Z","links":{"resolver":"https://pith.science/pith/Q5HZ6CUEZ4KNAECL4J6KDVMEOI","bundle":"https://pith.science/pith/Q5HZ6CUEZ4KNAECL4J6KDVMEOI/bundle.json","state":"https://pith.science/pith/Q5HZ6CUEZ4KNAECL4J6KDVMEOI/state.json","well_known_bundle":"https://pith.science/.well-known/pith/Q5HZ6CUEZ4KNAECL4J6KDVMEOI/bundle.json"},"state":{"state_type":"pith_open_graph_state","state_version":"1.0","pith_number":"pith:2011:Q5HZ6CUEZ4KNAECL4J6KDVMEOI","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":"31540ea35fe1257df6c6313e4feacc4f5a727cbd5ea7fb14e9719417c7bd0a3f","cross_cats_sorted":[],"license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"physics.geo-ph","submitted_at":"2011-08-18T14:37:19Z","title_canon_sha256":"65a52516542c1178260e1439b4c73a19d056c664858e38b268b2ebd16e5c6055"},"schema_version":"1.0","source":{"id":"1108.3767","kind":"arxiv","version":1}},"source_aliases":[{"alias_kind":"arxiv","alias_value":"1108.3767","created_at":"2026-05-18T02:00:50Z"},{"alias_kind":"arxiv_version","alias_value":"1108.3767v1","created_at":"2026-05-18T02:00:50Z"},{"alias_kind":"doi","alias_value":"10.48550/arxiv.1108.3767","created_at":"2026-05-18T02:00:50Z"},{"alias_kind":"pith_short_12","alias_value":"Q5HZ6CUEZ4KN","created_at":"2026-05-18T12:26:39Z"},{"alias_kind":"pith_short_16","alias_value":"Q5HZ6CUEZ4KNAECL","created_at":"2026-05-18T12:26:39Z"},{"alias_kind":"pith_short_8","alias_value":"Q5HZ6CUE","created_at":"2026-05-18T12:26:39Z"}],"graph_snapshots":[{"event_id":"sha256:674b26a91fc6b36a9c27df5b8acbc25238f877a1bd796fc01130ef9328006caa","target":"graph","created_at":"2026-05-18T02:00:50Z","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":"In recent years more and more long-term broadband data sets are collected in geosciences. Therefore there is an urgent need of algorithms which semi-automatically analyse and decompose these data into separate periods which are associated with different processes. Often Fourier and Wavelet Transform is used to decompose the data into short and long period effects but these fail often because of their simplicity. In this paper we investigate the novel approaches Empircial Mode Decomposition and Sparse Decomposition for long-term sea floor pressure data analysis and compare them with the classic","authors_text":"Heiner Villinger, Matthias Ehrhardt, Stefan Schiffler","cross_cats":[],"headline":"","license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"physics.geo-ph","submitted_at":"2011-08-18T14:37:19Z","title":"New Tools for Decomposition of Sea Floor Pressure Data - A Practical Comparison of Modern and Classical Approaches"},"references":{"count":0,"internal_anchors":0,"resolved_work":0,"sample":[],"snapshot_sha256":"258153158e38e3291e3d48162225fcdb2d5a3ed65a07baac614ab91432fd4f57"},"source":{"id":"1108.3767","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":"sha256:35f7612ff9374354a45b2595df3437ab91db7430465301e372c2dc120812d5a5","target":"record","created_at":"2026-05-18T02:00:50Z","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":"31540ea35fe1257df6c6313e4feacc4f5a727cbd5ea7fb14e9719417c7bd0a3f","cross_cats_sorted":[],"license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"physics.geo-ph","submitted_at":"2011-08-18T14:37:19Z","title_canon_sha256":"65a52516542c1178260e1439b4c73a19d056c664858e38b268b2ebd16e5c6055"},"schema_version":"1.0","source":{"id":"1108.3767","kind":"arxiv","version":1}},"canonical_sha256":"874f9f0a84cf14d0104be27ca1d584722252d339136a907d147b1de0077b6bd7","receipt":{"algorithm":"ed25519","builder_version":"pith-number-builder-2026-05-17-v1","canonical_sha256":"874f9f0a84cf14d0104be27ca1d584722252d339136a907d147b1de0077b6bd7","first_computed_at":"2026-05-18T02:00:50.846752Z","key_id":"pith-v1-2026-05","kind":"pith_receipt","last_reissued_at":"2026-05-18T02:00:50.846752Z","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54","receipt_version":"0.3","signature_b64":"SLfashm+VLfTd3f1mqkxePQvlEqoNdb1CBXDsuht7TBlZn3RbGaprQu3AkrxFdkKydo3pJvUT/EQUpdF4VfxBw==","signature_status":"signed_v1","signed_at":"2026-05-18T02:00:50.847389Z","signed_message":"canonical_sha256_bytes"},"source_id":"1108.3767","source_kind":"arxiv","source_version":1}}},"equivocations":[],"invalid_events":[],"applied_event_ids":["sha256:35f7612ff9374354a45b2595df3437ab91db7430465301e372c2dc120812d5a5","sha256:674b26a91fc6b36a9c27df5b8acbc25238f877a1bd796fc01130ef9328006caa"],"state_sha256":"9a07ec8ce7b55dc461e8cf0f951aa4e5c51bda5dca4a9c2ec6dab6f81fcb32e4"},"bundle_signature":{"signature_status":"signed_v1","algorithm":"ed25519","key_id":"pith-v1-2026-05","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54","signature_b64":"bQecHQaZxVFku7+SN/Ttt17EP0RWlLU6eBJlgte4yoyMpijAa1VG22OS1mKYJA6zRVlAu4fNk7cUg3GbfizrAA==","signed_message":"bundle_sha256_bytes","signed_at":"2026-06-24T08:59:23.319739Z","bundle_sha256":"e1961ba6b6577f05eebd380031ec40cc9c98f634bda1747f2cb0232bc787f08f"}}