{"bundle_type":"pith_open_graph_bundle","bundle_version":"1.0","pith_number":"pith:2020:ALLT42Z5DR5KCOKMZFGGLITRRA","short_pith_number":"pith:ALLT42Z5","canonical_record":{"source":{"id":"2006.02884","kind":"arxiv","version":1},"metadata":{"license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"physics.ins-det","submitted_at":"2020-06-04T14:29:57Z","cross_cats_sorted":[],"title_canon_sha256":"40bfe4683606c9009958c76555d36fb080e3d35231424df22b3a377eadbb7108","abstract_canon_sha256":"12dd11a87679aa24b346932a3024631b89a5d63b14ddeb4fe3460468ec754e56"},"schema_version":"1.0"},"canonical_sha256":"02d73e6b3d1c7aa1394cc94c65a27188261d5d391d9c032e922c8eed3ec4b950","source":{"kind":"arxiv","id":"2006.02884","version":1},"source_aliases":[{"alias_kind":"arxiv","alias_value":"2006.02884","created_at":"2026-07-05T01:37:34Z"},{"alias_kind":"arxiv_version","alias_value":"2006.02884v1","created_at":"2026-07-05T01:37:34Z"},{"alias_kind":"doi","alias_value":"10.48550/arxiv.2006.02884","created_at":"2026-07-05T01:37:34Z"},{"alias_kind":"pith_short_12","alias_value":"ALLT42Z5DR5K","created_at":"2026-07-05T01:37:34Z"},{"alias_kind":"pith_short_16","alias_value":"ALLT42Z5DR5KCOKM","created_at":"2026-07-05T01:37:34Z"},{"alias_kind":"pith_short_8","alias_value":"ALLT42Z5","created_at":"2026-07-05T01:37:34Z"}],"events":[{"event_type":"record_created","subject_pith_number":"pith:2020:ALLT42Z5DR5KCOKMZFGGLITRRA","target":"record","payload":{"canonical_record":{"source":{"id":"2006.02884","kind":"arxiv","version":1},"metadata":{"license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"physics.ins-det","submitted_at":"2020-06-04T14:29:57Z","cross_cats_sorted":[],"title_canon_sha256":"40bfe4683606c9009958c76555d36fb080e3d35231424df22b3a377eadbb7108","abstract_canon_sha256":"12dd11a87679aa24b346932a3024631b89a5d63b14ddeb4fe3460468ec754e56"},"schema_version":"1.0"},"canonical_sha256":"02d73e6b3d1c7aa1394cc94c65a27188261d5d391d9c032e922c8eed3ec4b950","receipt":{"kind":"pith_receipt","key_id":"pith-v1-2026-05","algorithm":"ed25519","signed_at":"2026-07-05T01:37:34.872794Z","signature_b64":"xg0krHwWoV2N9nBxcKi9GXty5NtEOAavwoAO9mhDRRJRfJBTtp2cAp8VPw3WtA/sktdm7vyNxFp4vW8ZTpT9BA==","signed_message":"canonical_sha256_bytes","builder_version":"pith-number-builder-2026-05-17-v1","receipt_version":"0.3","canonical_sha256":"02d73e6b3d1c7aa1394cc94c65a27188261d5d391d9c032e922c8eed3ec4b950","last_reissued_at":"2026-07-05T01:37:34.872347Z","signature_status":"signed_v1","first_computed_at":"2026-07-05T01:37:34.872347Z","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54"},"source_kind":"arxiv","source_id":"2006.02884","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":"2026-07-05T01:37:34Z","supersedes":[],"prev_event":null,"signature":{"signature_status":"signed_v1","algorithm":"ed25519","key_id":"pith-v1-2026-05","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54","signature_b64":"6bTaTw5MfUkFk26p971ShLmruLsH94PRznlFW9AJGROGHetQAnMFm4bR5D8bslcnehyBWXQt5sm1IY/K4uL5BA==","signed_message":"open_graph_event_sha256_bytes","signed_at":"2026-07-07T12:14:32.514401Z"},"content_sha256":"8c9e36d7b70ba3378f63c2001ef9c907a8d26d28d7363e3829a616f11a021119","schema_version":"1.0","event_id":"sha256:8c9e36d7b70ba3378f63c2001ef9c907a8d26d28d7363e3829a616f11a021119"},{"event_type":"graph_snapshot","subject_pith_number":"pith:2020:ALLT42Z5DR5KCOKMZFGGLITRRA","target":"graph","payload":{"graph_snapshot":{"paper":{"title":"Cepstral Analysis for Baseline-Insensitive Absorption Spectroscopy Using Light Sources with Pronounced Intensity Variations","license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","headline":"","cross_cats":[],"primary_cat":"physics.ins-det","authors_text":"Amanda S. Makowiecki, Christopher S. Goldenstein, Garrett C. Mathews, Gregory B. Rieker, Ryan K. Cole","submitted_at":"2020-06-04T14:29:57Z","abstract_excerpt":"This manuscript presents a data-processing technique which improves the accuracy and precision of absorption-spectroscopy measurements by isolating the molecular absorbance signal from errors in the baseline light intensity (Io) using cepstral analysis. Recently, cepstral analysis has been used with traditional absorption spectrometers to create a modified form of the time-domain molecular free-induction decay (m-FID) signal which can be analyzed independently from Io. However, independent analysis of the molecular signature is not possible when the baseline intensity and molecular response do"},"claims":{"count":0,"items":[],"snapshot_sha256":"258153158e38e3291e3d48162225fcdb2d5a3ed65a07baac614ab91432fd4f57"},"source":{"id":"2006.02884","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":""},"integrity":{"clean":true,"summary":{"advisory":0,"critical":0,"by_detector":{},"informational":0},"endpoint":"/pith/2006.02884/integrity.json","findings":[],"available":true,"detectors_run":[],"snapshot_sha256":"c28c3603d3b5d939e8dc4c7e95fa8dfce3d595e45f758748cecf8e644a296938"},"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":"2026-07-05T01:37:34Z","supersedes":[],"prev_event":null,"signature":{"signature_status":"signed_v1","algorithm":"ed25519","key_id":"pith-v1-2026-05","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54","signature_b64":"9Xcc84BmTg5TgYLosLHseXnaiM3FnkaBWdviPx8On1Lt4ECW7u5PLlo/5/0LFMWLGvWOGRCVupAugBzTiKAsCA==","signed_message":"open_graph_event_sha256_bytes","signed_at":"2026-07-07T12:14:32.514782Z"},"content_sha256":"5a5a22b628078165780e2f3381776171edd94d31686c851d783ff7ecbd8a3bf5","schema_version":"1.0","event_id":"sha256:5a5a22b628078165780e2f3381776171edd94d31686c851d783ff7ecbd8a3bf5"}],"timestamp_proofs":[],"mirror_hints":[{"mirror_type":"https","name":"Pith Resolver","base_url":"https://pith.science","bundle_url":"https://pith.science/pith/ALLT42Z5DR5KCOKMZFGGLITRRA/bundle.json","state_url":"https://pith.science/pith/ALLT42Z5DR5KCOKMZFGGLITRRA/state.json","well_known_bundle_url":"https://pith.science/.well-known/pith/ALLT42Z5DR5KCOKMZFGGLITRRA/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":"2026-07-07T12:14:32Z","links":{"resolver":"https://pith.science/pith/ALLT42Z5DR5KCOKMZFGGLITRRA","bundle":"https://pith.science/pith/ALLT42Z5DR5KCOKMZFGGLITRRA/bundle.json","state":"https://pith.science/pith/ALLT42Z5DR5KCOKMZFGGLITRRA/state.json","well_known_bundle":"https://pith.science/.well-known/pith/ALLT42Z5DR5KCOKMZFGGLITRRA/bundle.json"},"state":{"state_type":"pith_open_graph_state","state_version":"1.0","pith_number":"pith:2020:ALLT42Z5DR5KCOKMZFGGLITRRA","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":"12dd11a87679aa24b346932a3024631b89a5d63b14ddeb4fe3460468ec754e56","cross_cats_sorted":[],"license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"physics.ins-det","submitted_at":"2020-06-04T14:29:57Z","title_canon_sha256":"40bfe4683606c9009958c76555d36fb080e3d35231424df22b3a377eadbb7108"},"schema_version":"1.0","source":{"id":"2006.02884","kind":"arxiv","version":1}},"source_aliases":[{"alias_kind":"arxiv","alias_value":"2006.02884","created_at":"2026-07-05T01:37:34Z"},{"alias_kind":"arxiv_version","alias_value":"2006.02884v1","created_at":"2026-07-05T01:37:34Z"},{"alias_kind":"doi","alias_value":"10.48550/arxiv.2006.02884","created_at":"2026-07-05T01:37:34Z"},{"alias_kind":"pith_short_12","alias_value":"ALLT42Z5DR5K","created_at":"2026-07-05T01:37:34Z"},{"alias_kind":"pith_short_16","alias_value":"ALLT42Z5DR5KCOKM","created_at":"2026-07-05T01:37:34Z"},{"alias_kind":"pith_short_8","alias_value":"ALLT42Z5","created_at":"2026-07-05T01:37:34Z"}],"graph_snapshots":[{"event_id":"sha256:5a5a22b628078165780e2f3381776171edd94d31686c851d783ff7ecbd8a3bf5","target":"graph","created_at":"2026-07-05T01:37:34Z","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"},"integrity":{"available":true,"clean":true,"detectors_run":[],"endpoint":"/pith/2006.02884/integrity.json","findings":[],"snapshot_sha256":"c28c3603d3b5d939e8dc4c7e95fa8dfce3d595e45f758748cecf8e644a296938","summary":{"advisory":0,"by_detector":{},"critical":0,"informational":0}},"paper":{"abstract_excerpt":"This manuscript presents a data-processing technique which improves the accuracy and precision of absorption-spectroscopy measurements by isolating the molecular absorbance signal from errors in the baseline light intensity (Io) using cepstral analysis. Recently, cepstral analysis has been used with traditional absorption spectrometers to create a modified form of the time-domain molecular free-induction decay (m-FID) signal which can be analyzed independently from Io. However, independent analysis of the molecular signature is not possible when the baseline intensity and molecular response do","authors_text":"Amanda S. Makowiecki, Christopher S. Goldenstein, Garrett C. Mathews, Gregory B. Rieker, Ryan K. Cole","cross_cats":[],"headline":"","license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"physics.ins-det","submitted_at":"2020-06-04T14:29:57Z","title":"Cepstral Analysis for Baseline-Insensitive Absorption Spectroscopy Using Light Sources with Pronounced Intensity Variations"},"references":{"count":0,"internal_anchors":0,"resolved_work":0,"sample":[],"snapshot_sha256":"258153158e38e3291e3d48162225fcdb2d5a3ed65a07baac614ab91432fd4f57"},"source":{"id":"2006.02884","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":"sha256:8c9e36d7b70ba3378f63c2001ef9c907a8d26d28d7363e3829a616f11a021119","target":"record","created_at":"2026-07-05T01:37:34Z","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":"12dd11a87679aa24b346932a3024631b89a5d63b14ddeb4fe3460468ec754e56","cross_cats_sorted":[],"license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"physics.ins-det","submitted_at":"2020-06-04T14:29:57Z","title_canon_sha256":"40bfe4683606c9009958c76555d36fb080e3d35231424df22b3a377eadbb7108"},"schema_version":"1.0","source":{"id":"2006.02884","kind":"arxiv","version":1}},"canonical_sha256":"02d73e6b3d1c7aa1394cc94c65a27188261d5d391d9c032e922c8eed3ec4b950","receipt":{"algorithm":"ed25519","builder_version":"pith-number-builder-2026-05-17-v1","canonical_sha256":"02d73e6b3d1c7aa1394cc94c65a27188261d5d391d9c032e922c8eed3ec4b950","first_computed_at":"2026-07-05T01:37:34.872347Z","key_id":"pith-v1-2026-05","kind":"pith_receipt","last_reissued_at":"2026-07-05T01:37:34.872347Z","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54","receipt_version":"0.3","signature_b64":"xg0krHwWoV2N9nBxcKi9GXty5NtEOAavwoAO9mhDRRJRfJBTtp2cAp8VPw3WtA/sktdm7vyNxFp4vW8ZTpT9BA==","signature_status":"signed_v1","signed_at":"2026-07-05T01:37:34.872794Z","signed_message":"canonical_sha256_bytes"},"source_id":"2006.02884","source_kind":"arxiv","source_version":1}}},"equivocations":[],"invalid_events":[],"applied_event_ids":["sha256:8c9e36d7b70ba3378f63c2001ef9c907a8d26d28d7363e3829a616f11a021119","sha256:5a5a22b628078165780e2f3381776171edd94d31686c851d783ff7ecbd8a3bf5"],"state_sha256":"3d07fd332db420d898d0d3cb375946484b71ce347a2ca64b67e34620275049f6"},"bundle_signature":{"signature_status":"signed_v1","algorithm":"ed25519","key_id":"pith-v1-2026-05","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54","signature_b64":"5ewGstcRt1gnFNVaaJwtp0xIAgocwRGZx4ReLoDLIWyNPwozsSvhkYPDaMpDJSSjdAm2oI2jKb587I+bDCxPCA==","signed_message":"bundle_sha256_bytes","signed_at":"2026-07-07T12:14:32.516766Z","bundle_sha256":"5eea3319cdfe29f4670765b9c5e967b8af204a8df60bd7c3e336f86041d5c643"}}