{"bundle_type":"pith_open_graph_bundle","bundle_version":"1.0","pith_number":"pith:2013:OJ6OUSQZ7QZQCKZJRYEQJXTPNI","short_pith_number":"pith:OJ6OUSQZ","canonical_record":{"source":{"id":"1310.4066","kind":"arxiv","version":1},"metadata":{"license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"stat.ME","submitted_at":"2013-10-15T14:17:57Z","cross_cats_sorted":[],"title_canon_sha256":"896a0c7cfce2538b3814695fb5f4ea3887a769c6b1e8bbd8f8ec6ec0c39462e4","abstract_canon_sha256":"88fc28494b463927e20452292637e37616c3a9abc2cd22885f8ee8d492b34af1"},"schema_version":"1.0"},"canonical_sha256":"727cea4a19fc33012b298e0904de6f6a0c7541e972295bf3c3d02518a02809c2","source":{"kind":"arxiv","id":"1310.4066","version":1},"source_aliases":[{"alias_kind":"arxiv","alias_value":"1310.4066","created_at":"2026-05-18T03:10:25Z"},{"alias_kind":"arxiv_version","alias_value":"1310.4066v1","created_at":"2026-05-18T03:10:25Z"},{"alias_kind":"doi","alias_value":"10.48550/arxiv.1310.4066","created_at":"2026-05-18T03:10:25Z"},{"alias_kind":"pith_short_12","alias_value":"OJ6OUSQZ7QZQ","created_at":"2026-05-18T12:27:54Z"},{"alias_kind":"pith_short_16","alias_value":"OJ6OUSQZ7QZQCKZJ","created_at":"2026-05-18T12:27:54Z"},{"alias_kind":"pith_short_8","alias_value":"OJ6OUSQZ","created_at":"2026-05-18T12:27:54Z"}],"events":[{"event_type":"record_created","subject_pith_number":"pith:2013:OJ6OUSQZ7QZQCKZJRYEQJXTPNI","target":"record","payload":{"canonical_record":{"source":{"id":"1310.4066","kind":"arxiv","version":1},"metadata":{"license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"stat.ME","submitted_at":"2013-10-15T14:17:57Z","cross_cats_sorted":[],"title_canon_sha256":"896a0c7cfce2538b3814695fb5f4ea3887a769c6b1e8bbd8f8ec6ec0c39462e4","abstract_canon_sha256":"88fc28494b463927e20452292637e37616c3a9abc2cd22885f8ee8d492b34af1"},"schema_version":"1.0"},"canonical_sha256":"727cea4a19fc33012b298e0904de6f6a0c7541e972295bf3c3d02518a02809c2","receipt":{"kind":"pith_receipt","key_id":"pith-v1-2026-05","algorithm":"ed25519","signed_at":"2026-05-18T03:10:25.162410Z","signature_b64":"nEZLxQRkhwFd3BiSeEL6KRYgRtST7n86xdGVtIQob/fobezYmbnlreVqQJFt/6kWEBF254xObw+VitbOWlADDw==","signed_message":"canonical_sha256_bytes","builder_version":"pith-number-builder-2026-05-17-v1","receipt_version":"0.3","canonical_sha256":"727cea4a19fc33012b298e0904de6f6a0c7541e972295bf3c3d02518a02809c2","last_reissued_at":"2026-05-18T03:10:25.161638Z","signature_status":"signed_v1","first_computed_at":"2026-05-18T03:10:25.161638Z","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54"},"source_kind":"arxiv","source_id":"1310.4066","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":"2026-05-18T03:10:25Z","supersedes":[],"prev_event":null,"signature":{"signature_status":"signed_v1","algorithm":"ed25519","key_id":"pith-v1-2026-05","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54","signature_b64":"m/9iw/l+5de3WQOTlRrsJOYA13cr/bLjk6yw0ZoqxfhueUhnB9JM5/32CHPs7EcIK0NRjYZIgoT8wY1SAmtlDw==","signed_message":"open_graph_event_sha256_bytes","signed_at":"2026-07-02T01:40:06.889189Z"},"content_sha256":"e476ce09a4aaa7f6c8700025968fd13ed1575977da7a871cad71a472f940559e","schema_version":"1.0","event_id":"sha256:e476ce09a4aaa7f6c8700025968fd13ed1575977da7a871cad71a472f940559e"},{"event_type":"graph_snapshot","subject_pith_number":"pith:2013:OJ6OUSQZ7QZQCKZJRYEQJXTPNI","target":"graph","payload":{"graph_snapshot":{"paper":{"title":"Aggregated functional data model for Near-Infrared Spectroscopy calibration and prediction","license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","headline":"","cross_cats":[],"primary_cat":"stat.ME","authors_text":"Guilherme Ludwig, Marley A. Saraiva, Nancy L. Garcia, Ronaldo Dias","submitted_at":"2013-10-15T14:17:57Z","abstract_excerpt":"Calibration and prediction for NIR spectroscopy data are performed based on a functional interpretation of the Beer-Lambert formula. Considering that, for each chemical sample, the resulting spectrum is a continuous curve obtained as the summation of overlapped absorption spectra from each analyte plus a Gaussian error, we assume that each individual spectrum can be expanded as a linear combination of B-splines basis. Calibration is then performed using two procedures for estimating the individual analytes curves: basis smoothing and smoothing splines. Prediction is done by minimizing the squa"},"claims":{"count":0,"items":[],"snapshot_sha256":"258153158e38e3291e3d48162225fcdb2d5a3ed65a07baac614ab91432fd4f57"},"source":{"id":"1310.4066","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":"2026-05-18T03:10:25Z","supersedes":[],"prev_event":null,"signature":{"signature_status":"signed_v1","algorithm":"ed25519","key_id":"pith-v1-2026-05","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54","signature_b64":"glI7fnnTvP9afK6k+DBeGzPw+VEYB9rGmWq3GKFOxfRUmtttacyyEQ8vr9lzy7EBZ4IKqEiAv+RmBQBsPWLuDg==","signed_message":"open_graph_event_sha256_bytes","signed_at":"2026-07-02T01:40:06.889801Z"},"content_sha256":"dc3bfd98bff42331bbc5e6a9f2bec7ede215140a2ed512d9fce5d913f790045f","schema_version":"1.0","event_id":"sha256:dc3bfd98bff42331bbc5e6a9f2bec7ede215140a2ed512d9fce5d913f790045f"}],"timestamp_proofs":[],"mirror_hints":[{"mirror_type":"https","name":"Pith Resolver","base_url":"https://pith.science","bundle_url":"https://pith.science/pith/OJ6OUSQZ7QZQCKZJRYEQJXTPNI/bundle.json","state_url":"https://pith.science/pith/OJ6OUSQZ7QZQCKZJRYEQJXTPNI/state.json","well_known_bundle_url":"https://pith.science/.well-known/pith/OJ6OUSQZ7QZQCKZJRYEQJXTPNI/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":"2026-07-02T01:40:06Z","links":{"resolver":"https://pith.science/pith/OJ6OUSQZ7QZQCKZJRYEQJXTPNI","bundle":"https://pith.science/pith/OJ6OUSQZ7QZQCKZJRYEQJXTPNI/bundle.json","state":"https://pith.science/pith/OJ6OUSQZ7QZQCKZJRYEQJXTPNI/state.json","well_known_bundle":"https://pith.science/.well-known/pith/OJ6OUSQZ7QZQCKZJRYEQJXTPNI/bundle.json"},"state":{"state_type":"pith_open_graph_state","state_version":"1.0","pith_number":"pith:2013:OJ6OUSQZ7QZQCKZJRYEQJXTPNI","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":"88fc28494b463927e20452292637e37616c3a9abc2cd22885f8ee8d492b34af1","cross_cats_sorted":[],"license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"stat.ME","submitted_at":"2013-10-15T14:17:57Z","title_canon_sha256":"896a0c7cfce2538b3814695fb5f4ea3887a769c6b1e8bbd8f8ec6ec0c39462e4"},"schema_version":"1.0","source":{"id":"1310.4066","kind":"arxiv","version":1}},"source_aliases":[{"alias_kind":"arxiv","alias_value":"1310.4066","created_at":"2026-05-18T03:10:25Z"},{"alias_kind":"arxiv_version","alias_value":"1310.4066v1","created_at":"2026-05-18T03:10:25Z"},{"alias_kind":"doi","alias_value":"10.48550/arxiv.1310.4066","created_at":"2026-05-18T03:10:25Z"},{"alias_kind":"pith_short_12","alias_value":"OJ6OUSQZ7QZQ","created_at":"2026-05-18T12:27:54Z"},{"alias_kind":"pith_short_16","alias_value":"OJ6OUSQZ7QZQCKZJ","created_at":"2026-05-18T12:27:54Z"},{"alias_kind":"pith_short_8","alias_value":"OJ6OUSQZ","created_at":"2026-05-18T12:27:54Z"}],"graph_snapshots":[{"event_id":"sha256:dc3bfd98bff42331bbc5e6a9f2bec7ede215140a2ed512d9fce5d913f790045f","target":"graph","created_at":"2026-05-18T03:10:25Z","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":"Calibration and prediction for NIR spectroscopy data are performed based on a functional interpretation of the Beer-Lambert formula. Considering that, for each chemical sample, the resulting spectrum is a continuous curve obtained as the summation of overlapped absorption spectra from each analyte plus a Gaussian error, we assume that each individual spectrum can be expanded as a linear combination of B-splines basis. Calibration is then performed using two procedures for estimating the individual analytes curves: basis smoothing and smoothing splines. Prediction is done by minimizing the squa","authors_text":"Guilherme Ludwig, Marley A. Saraiva, Nancy L. Garcia, Ronaldo Dias","cross_cats":[],"headline":"","license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"stat.ME","submitted_at":"2013-10-15T14:17:57Z","title":"Aggregated functional data model for Near-Infrared Spectroscopy calibration and prediction"},"references":{"count":0,"internal_anchors":0,"resolved_work":0,"sample":[],"snapshot_sha256":"258153158e38e3291e3d48162225fcdb2d5a3ed65a07baac614ab91432fd4f57"},"source":{"id":"1310.4066","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:e476ce09a4aaa7f6c8700025968fd13ed1575977da7a871cad71a472f940559e","target":"record","created_at":"2026-05-18T03:10:25Z","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":"88fc28494b463927e20452292637e37616c3a9abc2cd22885f8ee8d492b34af1","cross_cats_sorted":[],"license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"stat.ME","submitted_at":"2013-10-15T14:17:57Z","title_canon_sha256":"896a0c7cfce2538b3814695fb5f4ea3887a769c6b1e8bbd8f8ec6ec0c39462e4"},"schema_version":"1.0","source":{"id":"1310.4066","kind":"arxiv","version":1}},"canonical_sha256":"727cea4a19fc33012b298e0904de6f6a0c7541e972295bf3c3d02518a02809c2","receipt":{"algorithm":"ed25519","builder_version":"pith-number-builder-2026-05-17-v1","canonical_sha256":"727cea4a19fc33012b298e0904de6f6a0c7541e972295bf3c3d02518a02809c2","first_computed_at":"2026-05-18T03:10:25.161638Z","key_id":"pith-v1-2026-05","kind":"pith_receipt","last_reissued_at":"2026-05-18T03:10:25.161638Z","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54","receipt_version":"0.3","signature_b64":"nEZLxQRkhwFd3BiSeEL6KRYgRtST7n86xdGVtIQob/fobezYmbnlreVqQJFt/6kWEBF254xObw+VitbOWlADDw==","signature_status":"signed_v1","signed_at":"2026-05-18T03:10:25.162410Z","signed_message":"canonical_sha256_bytes"},"source_id":"1310.4066","source_kind":"arxiv","source_version":1}}},"equivocations":[],"invalid_events":[],"applied_event_ids":["sha256:e476ce09a4aaa7f6c8700025968fd13ed1575977da7a871cad71a472f940559e","sha256:dc3bfd98bff42331bbc5e6a9f2bec7ede215140a2ed512d9fce5d913f790045f"],"state_sha256":"f6e95efabfa76da5b2b39d68ec507fb3d0a3a0faff8cc568f74a2870728320fe"},"bundle_signature":{"signature_status":"signed_v1","algorithm":"ed25519","key_id":"pith-v1-2026-05","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54","signature_b64":"Toi98i4jThpc5BEZvWPMfXxA5SsvNN73il25tlVtnxP+s8rZGs0bXmfPVptyI/E1PjJOOxYFoaTm8X5Hfix3Dw==","signed_message":"bundle_sha256_bytes","signed_at":"2026-07-02T01:40:06.894912Z","bundle_sha256":"416d6e4c7ef9e2c9e3ec599fa113ed336ad0f1894605eba22b5ac3625c40e650"}}