{"bundle_type":"pith_open_graph_bundle","bundle_version":"1.0","pith_number":"pith:2014:WDG3FOMWNDT2K27HCVHC4STKEM","short_pith_number":"pith:WDG3FOMW","canonical_record":{"source":{"id":"1410.5092","kind":"arxiv","version":4},"metadata":{"license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"cs.MM","submitted_at":"2014-10-19T16:51:34Z","cross_cats_sorted":[],"title_canon_sha256":"8bec2b3455a52795a58105ae7f81ec0f2a01acfc6a23075e9830cd1158ad5685","abstract_canon_sha256":"5b0c0939163be1bc973f4d4d84e3692290e592b92c3283b7e8eb780ddd7ac0c7"},"schema_version":"1.0"},"canonical_sha256":"b0cdb2b99668e7a56be7154e2e4a6a231de3877c0d70454dc6cb8fff41941f62","source":{"kind":"arxiv","id":"1410.5092","version":4},"source_aliases":[{"alias_kind":"arxiv","alias_value":"1410.5092","created_at":"2026-05-18T01:57:41Z"},{"alias_kind":"arxiv_version","alias_value":"1410.5092v4","created_at":"2026-05-18T01:57:41Z"},{"alias_kind":"doi","alias_value":"10.48550/arxiv.1410.5092","created_at":"2026-05-18T01:57:41Z"},{"alias_kind":"pith_short_12","alias_value":"WDG3FOMWNDT2","created_at":"2026-05-18T12:28:54Z"},{"alias_kind":"pith_short_16","alias_value":"WDG3FOMWNDT2K27H","created_at":"2026-05-18T12:28:54Z"},{"alias_kind":"pith_short_8","alias_value":"WDG3FOMW","created_at":"2026-05-18T12:28:54Z"}],"events":[{"event_type":"record_created","subject_pith_number":"pith:2014:WDG3FOMWNDT2K27HCVHC4STKEM","target":"record","payload":{"canonical_record":{"source":{"id":"1410.5092","kind":"arxiv","version":4},"metadata":{"license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"cs.MM","submitted_at":"2014-10-19T16:51:34Z","cross_cats_sorted":[],"title_canon_sha256":"8bec2b3455a52795a58105ae7f81ec0f2a01acfc6a23075e9830cd1158ad5685","abstract_canon_sha256":"5b0c0939163be1bc973f4d4d84e3692290e592b92c3283b7e8eb780ddd7ac0c7"},"schema_version":"1.0"},"canonical_sha256":"b0cdb2b99668e7a56be7154e2e4a6a231de3877c0d70454dc6cb8fff41941f62","receipt":{"kind":"pith_receipt","key_id":"pith-v1-2026-05","algorithm":"ed25519","signed_at":"2026-05-18T01:57:41.752553Z","signature_b64":"yuIF7Esi2WrwezFfFdJ8ZGcruvTReKZhWlcRMohJwD3VzJ+GIesVCHk2t8Zb37e41chkSnXgJnxsmu6VMeXyDg==","signed_message":"canonical_sha256_bytes","builder_version":"pith-number-builder-2026-05-17-v1","receipt_version":"0.3","canonical_sha256":"b0cdb2b99668e7a56be7154e2e4a6a231de3877c0d70454dc6cb8fff41941f62","last_reissued_at":"2026-05-18T01:57:41.751901Z","signature_status":"signed_v1","first_computed_at":"2026-05-18T01:57:41.751901Z","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54"},"source_kind":"arxiv","source_id":"1410.5092","source_version":4,"attestation_state":"computed"},"signer":{"signer_id":"pith.science","signer_type":"pith_registry","key_id":"pith-v1-2026-05","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54"},"created_at":"2026-05-18T01:57:41Z","supersedes":[],"prev_event":null,"signature":{"signature_status":"signed_v1","algorithm":"ed25519","key_id":"pith-v1-2026-05","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54","signature_b64":"0jRkC/qOpcCO260EgYPxy/NzvgTwFyJXeE8zTIQPmAiivgJamV8QdxMQFPRBLst6DVOO4lqGteJKVzxx1nsbAA==","signed_message":"open_graph_event_sha256_bytes","signed_at":"2026-05-27T11:50:26.706026Z"},"content_sha256":"7f7556ab346db3a3bdb2415707511b424203c9ceea1b19a05c3c985102e3bb19","schema_version":"1.0","event_id":"sha256:7f7556ab346db3a3bdb2415707511b424203c9ceea1b19a05c3c985102e3bb19"},{"event_type":"graph_snapshot","subject_pith_number":"pith:2014:WDG3FOMWNDT2K27HCVHC4STKEM","target":"graph","payload":{"graph_snapshot":{"paper":{"title":"Comparing CSI and PCA in Amalgamation with JPEG for Spectral Image Compression","license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","headline":"","cross_cats":[],"primary_cat":"cs.MM","authors_text":"Ming Ronnier Luo, Muhammad Safdar, Xiaoyu Liu","submitted_at":"2014-10-19T16:51:34Z","abstract_excerpt":"Continuing our previous research on color image compression, we move towards spectral image compression. This enormous amount of data needs more space to store and more time to transmit. To manage this sheer amount of data, researchers have investigated different techniques so that image quality can be conserved and compressibility can be improved. The principle component analysis (PCA) can be employed to reduce the dimensions of spectral images to achieve high compressibility and performance. Due to processing complexity of PCA, a simple interpolation technique called cubic spline interpolati"},"claims":{"count":0,"items":[],"snapshot_sha256":"258153158e38e3291e3d48162225fcdb2d5a3ed65a07baac614ab91432fd4f57"},"source":{"id":"1410.5092","kind":"arxiv","version":4},"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":"2026-05-18T01:57:41Z","supersedes":[],"prev_event":null,"signature":{"signature_status":"signed_v1","algorithm":"ed25519","key_id":"pith-v1-2026-05","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54","signature_b64":"1NuBtLm4DqWdP2CdAf0DacjejJdnBv4xdaJPe8pszVxWQ3L71faiK15FZ7Cs1P+lolsjs7OrqGnRjJ4wqmUGBw==","signed_message":"open_graph_event_sha256_bytes","signed_at":"2026-05-27T11:50:26.706476Z"},"content_sha256":"2be1275f393dfde195f8cfc91e82f7103a2362d3d51e16b260da50c0f9c6202c","schema_version":"1.0","event_id":"sha256:2be1275f393dfde195f8cfc91e82f7103a2362d3d51e16b260da50c0f9c6202c"}],"timestamp_proofs":[],"mirror_hints":[{"mirror_type":"https","name":"Pith Resolver","base_url":"https://pith.science","bundle_url":"https://pith.science/pith/WDG3FOMWNDT2K27HCVHC4STKEM/bundle.json","state_url":"https://pith.science/pith/WDG3FOMWNDT2K27HCVHC4STKEM/state.json","well_known_bundle_url":"https://pith.science/.well-known/pith/WDG3FOMWNDT2K27HCVHC4STKEM/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":"2026-05-27T11:50:26Z","links":{"resolver":"https://pith.science/pith/WDG3FOMWNDT2K27HCVHC4STKEM","bundle":"https://pith.science/pith/WDG3FOMWNDT2K27HCVHC4STKEM/bundle.json","state":"https://pith.science/pith/WDG3FOMWNDT2K27HCVHC4STKEM/state.json","well_known_bundle":"https://pith.science/.well-known/pith/WDG3FOMWNDT2K27HCVHC4STKEM/bundle.json"},"state":{"state_type":"pith_open_graph_state","state_version":"1.0","pith_number":"pith:2014:WDG3FOMWNDT2K27HCVHC4STKEM","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":"5b0c0939163be1bc973f4d4d84e3692290e592b92c3283b7e8eb780ddd7ac0c7","cross_cats_sorted":[],"license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"cs.MM","submitted_at":"2014-10-19T16:51:34Z","title_canon_sha256":"8bec2b3455a52795a58105ae7f81ec0f2a01acfc6a23075e9830cd1158ad5685"},"schema_version":"1.0","source":{"id":"1410.5092","kind":"arxiv","version":4}},"source_aliases":[{"alias_kind":"arxiv","alias_value":"1410.5092","created_at":"2026-05-18T01:57:41Z"},{"alias_kind":"arxiv_version","alias_value":"1410.5092v4","created_at":"2026-05-18T01:57:41Z"},{"alias_kind":"doi","alias_value":"10.48550/arxiv.1410.5092","created_at":"2026-05-18T01:57:41Z"},{"alias_kind":"pith_short_12","alias_value":"WDG3FOMWNDT2","created_at":"2026-05-18T12:28:54Z"},{"alias_kind":"pith_short_16","alias_value":"WDG3FOMWNDT2K27H","created_at":"2026-05-18T12:28:54Z"},{"alias_kind":"pith_short_8","alias_value":"WDG3FOMW","created_at":"2026-05-18T12:28:54Z"}],"graph_snapshots":[{"event_id":"sha256:2be1275f393dfde195f8cfc91e82f7103a2362d3d51e16b260da50c0f9c6202c","target":"graph","created_at":"2026-05-18T01:57:41Z","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":"Continuing our previous research on color image compression, we move towards spectral image compression. This enormous amount of data needs more space to store and more time to transmit. To manage this sheer amount of data, researchers have investigated different techniques so that image quality can be conserved and compressibility can be improved. The principle component analysis (PCA) can be employed to reduce the dimensions of spectral images to achieve high compressibility and performance. Due to processing complexity of PCA, a simple interpolation technique called cubic spline interpolati","authors_text":"Ming Ronnier Luo, Muhammad Safdar, Xiaoyu Liu","cross_cats":[],"headline":"","license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"cs.MM","submitted_at":"2014-10-19T16:51:34Z","title":"Comparing CSI and PCA in Amalgamation with JPEG for Spectral Image Compression"},"references":{"count":0,"internal_anchors":0,"resolved_work":0,"sample":[],"snapshot_sha256":"258153158e38e3291e3d48162225fcdb2d5a3ed65a07baac614ab91432fd4f57"},"source":{"id":"1410.5092","kind":"arxiv","version":4},"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":"sha256:7f7556ab346db3a3bdb2415707511b424203c9ceea1b19a05c3c985102e3bb19","target":"record","created_at":"2026-05-18T01:57:41Z","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":"5b0c0939163be1bc973f4d4d84e3692290e592b92c3283b7e8eb780ddd7ac0c7","cross_cats_sorted":[],"license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"cs.MM","submitted_at":"2014-10-19T16:51:34Z","title_canon_sha256":"8bec2b3455a52795a58105ae7f81ec0f2a01acfc6a23075e9830cd1158ad5685"},"schema_version":"1.0","source":{"id":"1410.5092","kind":"arxiv","version":4}},"canonical_sha256":"b0cdb2b99668e7a56be7154e2e4a6a231de3877c0d70454dc6cb8fff41941f62","receipt":{"algorithm":"ed25519","builder_version":"pith-number-builder-2026-05-17-v1","canonical_sha256":"b0cdb2b99668e7a56be7154e2e4a6a231de3877c0d70454dc6cb8fff41941f62","first_computed_at":"2026-05-18T01:57:41.751901Z","key_id":"pith-v1-2026-05","kind":"pith_receipt","last_reissued_at":"2026-05-18T01:57:41.751901Z","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54","receipt_version":"0.3","signature_b64":"yuIF7Esi2WrwezFfFdJ8ZGcruvTReKZhWlcRMohJwD3VzJ+GIesVCHk2t8Zb37e41chkSnXgJnxsmu6VMeXyDg==","signature_status":"signed_v1","signed_at":"2026-05-18T01:57:41.752553Z","signed_message":"canonical_sha256_bytes"},"source_id":"1410.5092","source_kind":"arxiv","source_version":4}}},"equivocations":[],"invalid_events":[],"applied_event_ids":["sha256:7f7556ab346db3a3bdb2415707511b424203c9ceea1b19a05c3c985102e3bb19","sha256:2be1275f393dfde195f8cfc91e82f7103a2362d3d51e16b260da50c0f9c6202c"],"state_sha256":"d36e9ada5bb6ba92d41c57048c1eb8aaafaecd5490b6b3c77a4eb23ee570b2f3"},"bundle_signature":{"signature_status":"signed_v1","algorithm":"ed25519","key_id":"pith-v1-2026-05","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54","signature_b64":"sWRShI+V9ZUkqQJLYNUDlpn70+dlQjnBmoVO/pJ7XOZPFOhW+1ipJjtAvBWIDUP8rqlV8fFvzJvhiahn8rEwDQ==","signed_message":"bundle_sha256_bytes","signed_at":"2026-05-27T11:50:26.708598Z","bundle_sha256":"95a07063b562512d8d633cd1ca645b0c1cdfc47f4556bebc6500b55de950cb31"}}