{"bundle_type":"pith_open_graph_bundle","bundle_version":"1.0","pith_number":"pith:2022:AWG7XASD5YVTNY5JLH4BN2JTF7","short_pith_number":"pith:AWG7XASD","canonical_record":{"source":{"id":"2205.10319","kind":"arxiv","version":1},"metadata":{"license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"astro-ph.EP","submitted_at":"2022-05-20T17:32:59Z","cross_cats_sorted":["astro-ph.IM"],"title_canon_sha256":"393d96c5e22290be9e8fcd016fddbfcba0323d9df61f51b5d255fca0ed15d3af","abstract_canon_sha256":"145d8165f68d520bfe653aa5b697caaa08e91b86a9ec381b58c19a97520fe7cd"},"schema_version":"1.0"},"canonical_sha256":"058dfb8243ee2b36e3a959f816e9332fc07c11ddcd23efb2ce01071f622a51fc","source":{"kind":"arxiv","id":"2205.10319","version":1},"source_aliases":[{"alias_kind":"arxiv","alias_value":"2205.10319","created_at":"2026-07-05T04:25:06Z"},{"alias_kind":"arxiv_version","alias_value":"2205.10319v1","created_at":"2026-07-05T04:25:06Z"},{"alias_kind":"doi","alias_value":"10.48550/arxiv.2205.10319","created_at":"2026-07-05T04:25:06Z"},{"alias_kind":"pith_short_12","alias_value":"AWG7XASD5YVT","created_at":"2026-07-05T04:25:06Z"},{"alias_kind":"pith_short_16","alias_value":"AWG7XASD5YVTNY5J","created_at":"2026-07-05T04:25:06Z"},{"alias_kind":"pith_short_8","alias_value":"AWG7XASD","created_at":"2026-07-05T04:25:06Z"}],"events":[{"event_type":"record_created","subject_pith_number":"pith:2022:AWG7XASD5YVTNY5JLH4BN2JTF7","target":"record","payload":{"canonical_record":{"source":{"id":"2205.10319","kind":"arxiv","version":1},"metadata":{"license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"astro-ph.EP","submitted_at":"2022-05-20T17:32:59Z","cross_cats_sorted":["astro-ph.IM"],"title_canon_sha256":"393d96c5e22290be9e8fcd016fddbfcba0323d9df61f51b5d255fca0ed15d3af","abstract_canon_sha256":"145d8165f68d520bfe653aa5b697caaa08e91b86a9ec381b58c19a97520fe7cd"},"schema_version":"1.0"},"canonical_sha256":"058dfb8243ee2b36e3a959f816e9332fc07c11ddcd23efb2ce01071f622a51fc","receipt":{"kind":"pith_receipt","key_id":"pith-v1-2026-05","algorithm":"ed25519","signed_at":"2026-07-05T04:25:06.204442Z","signature_b64":"G+vHNbDEotaIzQkY9TXHRcZ37LA8dldn7cfwapX2PwoUlJQlc1actrQbtIp1y1D8ZS9HD4iLyLshPAeJzJE9BQ==","signed_message":"canonical_sha256_bytes","builder_version":"pith-number-builder-2026-05-17-v1","receipt_version":"0.3","canonical_sha256":"058dfb8243ee2b36e3a959f816e9332fc07c11ddcd23efb2ce01071f622a51fc","last_reissued_at":"2026-07-05T04:25:06.203963Z","signature_status":"signed_v1","first_computed_at":"2026-07-05T04:25:06.203963Z","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54"},"source_kind":"arxiv","source_id":"2205.10319","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":"2026-07-05T04:25:06Z","supersedes":[],"prev_event":null,"signature":{"signature_status":"signed_v1","algorithm":"ed25519","key_id":"pith-v1-2026-05","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54","signature_b64":"Fnyfj0zTnfsnjaKsTaUdIR4bf/Q6xCPp37io+CxMugGTGCjUGPJllqXvNg8ir5y4LbolcrsJNEmOk3PZIbNlAA==","signed_message":"open_graph_event_sha256_bytes","signed_at":"2026-07-07T05:10:41.374586Z"},"content_sha256":"af17a24de9db32c72b2d8a68266628ed64976c7e7d4b14544b4497fb13e2613f","schema_version":"1.0","event_id":"sha256:af17a24de9db32c72b2d8a68266628ed64976c7e7d4b14544b4497fb13e2613f"},{"event_type":"graph_snapshot","subject_pith_number":"pith:2022:AWG7XASD5YVTNY5JLH4BN2JTF7","target":"graph","payload":{"graph_snapshot":{"paper":{"title":"In-situ wavelength calibration without a calibration target: use of Fraunhofer lines after landing on planetary surface","license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","headline":"","cross_cats":["astro-ph.IM"],"primary_cat":"astro-ph.EP","authors_text":"Conor Ryan, Emanuel Kopp, Enrico Dietz, Fernando Rull, Haruhisa Tabata, Heinz-Wilhelm H\\\"ubers, Koki Yumoto, Maximilian Buder, Olga Prieto-Ballesteros, Seiji Sugita, Shingo Kameda, Shoki Mori, Susanne Schroeder, Till Hagelschuer, Tomohiro Usui, Ute Boettger, Yuichiro Cho","submitted_at":"2022-05-20T17:32:59Z","abstract_excerpt":"Accurate wavelength calibration is critical for qualitative and quantitative spectroscopic measurements. Many spectrometers for planetary exploration are equipped with onboard calibration sources. However, such calibration sources are not always available because planetary lander missions often have strong limitations in size and mass. In this study, we propose and validate a wavelength calibration method using solar Fraunhofer lines observed in reflective spectra. As a result, for a visible Raman spectrometer, the accuracy is better than 0.6 cm-1 in 0-4000 cm-1 range, and the magnesium abunda"},"claims":{"count":0,"items":[],"snapshot_sha256":"258153158e38e3291e3d48162225fcdb2d5a3ed65a07baac614ab91432fd4f57"},"source":{"id":"2205.10319","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/2205.10319/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":"2026-07-05T04:25:06Z","supersedes":[],"prev_event":null,"signature":{"signature_status":"signed_v1","algorithm":"ed25519","key_id":"pith-v1-2026-05","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54","signature_b64":"hYRdzXr2dSkjEiahSOWezGCwR8VCDusI3SmPJFnHGHSWYPEIBm7wICJLB214DzMVYWxO0SogRiNpKTIKTx+IDQ==","signed_message":"open_graph_event_sha256_bytes","signed_at":"2026-07-07T05:10:41.375254Z"},"content_sha256":"4953e11e772baa77bc9196fadc0ebe60a0642ff94608c32e8594f7e52217a908","schema_version":"1.0","event_id":"sha256:4953e11e772baa77bc9196fadc0ebe60a0642ff94608c32e8594f7e52217a908"}],"timestamp_proofs":[],"mirror_hints":[{"mirror_type":"https","name":"Pith Resolver","base_url":"https://pith.science","bundle_url":"https://pith.science/pith/AWG7XASD5YVTNY5JLH4BN2JTF7/bundle.json","state_url":"https://pith.science/pith/AWG7XASD5YVTNY5JLH4BN2JTF7/state.json","well_known_bundle_url":"https://pith.science/.well-known/pith/AWG7XASD5YVTNY5JLH4BN2JTF7/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":"2026-07-07T05:10:41Z","links":{"resolver":"https://pith.science/pith/AWG7XASD5YVTNY5JLH4BN2JTF7","bundle":"https://pith.science/pith/AWG7XASD5YVTNY5JLH4BN2JTF7/bundle.json","state":"https://pith.science/pith/AWG7XASD5YVTNY5JLH4BN2JTF7/state.json","well_known_bundle":"https://pith.science/.well-known/pith/AWG7XASD5YVTNY5JLH4BN2JTF7/bundle.json"},"state":{"state_type":"pith_open_graph_state","state_version":"1.0","pith_number":"pith:2022:AWG7XASD5YVTNY5JLH4BN2JTF7","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":"145d8165f68d520bfe653aa5b697caaa08e91b86a9ec381b58c19a97520fe7cd","cross_cats_sorted":["astro-ph.IM"],"license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"astro-ph.EP","submitted_at":"2022-05-20T17:32:59Z","title_canon_sha256":"393d96c5e22290be9e8fcd016fddbfcba0323d9df61f51b5d255fca0ed15d3af"},"schema_version":"1.0","source":{"id":"2205.10319","kind":"arxiv","version":1}},"source_aliases":[{"alias_kind":"arxiv","alias_value":"2205.10319","created_at":"2026-07-05T04:25:06Z"},{"alias_kind":"arxiv_version","alias_value":"2205.10319v1","created_at":"2026-07-05T04:25:06Z"},{"alias_kind":"doi","alias_value":"10.48550/arxiv.2205.10319","created_at":"2026-07-05T04:25:06Z"},{"alias_kind":"pith_short_12","alias_value":"AWG7XASD5YVT","created_at":"2026-07-05T04:25:06Z"},{"alias_kind":"pith_short_16","alias_value":"AWG7XASD5YVTNY5J","created_at":"2026-07-05T04:25:06Z"},{"alias_kind":"pith_short_8","alias_value":"AWG7XASD","created_at":"2026-07-05T04:25:06Z"}],"graph_snapshots":[{"event_id":"sha256:4953e11e772baa77bc9196fadc0ebe60a0642ff94608c32e8594f7e52217a908","target":"graph","created_at":"2026-07-05T04:25:06Z","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/2205.10319/integrity.json","findings":[],"snapshot_sha256":"c28c3603d3b5d939e8dc4c7e95fa8dfce3d595e45f758748cecf8e644a296938","summary":{"advisory":0,"by_detector":{},"critical":0,"informational":0}},"paper":{"abstract_excerpt":"Accurate wavelength calibration is critical for qualitative and quantitative spectroscopic measurements. Many spectrometers for planetary exploration are equipped with onboard calibration sources. However, such calibration sources are not always available because planetary lander missions often have strong limitations in size and mass. In this study, we propose and validate a wavelength calibration method using solar Fraunhofer lines observed in reflective spectra. As a result, for a visible Raman spectrometer, the accuracy is better than 0.6 cm-1 in 0-4000 cm-1 range, and the magnesium abunda","authors_text":"Conor Ryan, Emanuel Kopp, Enrico Dietz, Fernando Rull, Haruhisa Tabata, Heinz-Wilhelm H\\\"ubers, Koki Yumoto, Maximilian Buder, Olga Prieto-Ballesteros, Seiji Sugita, Shingo Kameda, Shoki Mori, Susanne Schroeder, Till Hagelschuer, Tomohiro Usui, Ute Boettger, Yuichiro Cho","cross_cats":["astro-ph.IM"],"headline":"","license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"astro-ph.EP","submitted_at":"2022-05-20T17:32:59Z","title":"In-situ wavelength calibration without a calibration target: use of Fraunhofer lines after landing on planetary surface"},"references":{"count":0,"internal_anchors":0,"resolved_work":0,"sample":[],"snapshot_sha256":"258153158e38e3291e3d48162225fcdb2d5a3ed65a07baac614ab91432fd4f57"},"source":{"id":"2205.10319","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:af17a24de9db32c72b2d8a68266628ed64976c7e7d4b14544b4497fb13e2613f","target":"record","created_at":"2026-07-05T04:25:06Z","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":"145d8165f68d520bfe653aa5b697caaa08e91b86a9ec381b58c19a97520fe7cd","cross_cats_sorted":["astro-ph.IM"],"license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"astro-ph.EP","submitted_at":"2022-05-20T17:32:59Z","title_canon_sha256":"393d96c5e22290be9e8fcd016fddbfcba0323d9df61f51b5d255fca0ed15d3af"},"schema_version":"1.0","source":{"id":"2205.10319","kind":"arxiv","version":1}},"canonical_sha256":"058dfb8243ee2b36e3a959f816e9332fc07c11ddcd23efb2ce01071f622a51fc","receipt":{"algorithm":"ed25519","builder_version":"pith-number-builder-2026-05-17-v1","canonical_sha256":"058dfb8243ee2b36e3a959f816e9332fc07c11ddcd23efb2ce01071f622a51fc","first_computed_at":"2026-07-05T04:25:06.203963Z","key_id":"pith-v1-2026-05","kind":"pith_receipt","last_reissued_at":"2026-07-05T04:25:06.203963Z","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54","receipt_version":"0.3","signature_b64":"G+vHNbDEotaIzQkY9TXHRcZ37LA8dldn7cfwapX2PwoUlJQlc1actrQbtIp1y1D8ZS9HD4iLyLshPAeJzJE9BQ==","signature_status":"signed_v1","signed_at":"2026-07-05T04:25:06.204442Z","signed_message":"canonical_sha256_bytes"},"source_id":"2205.10319","source_kind":"arxiv","source_version":1}}},"equivocations":[],"invalid_events":[],"applied_event_ids":["sha256:af17a24de9db32c72b2d8a68266628ed64976c7e7d4b14544b4497fb13e2613f","sha256:4953e11e772baa77bc9196fadc0ebe60a0642ff94608c32e8594f7e52217a908"],"state_sha256":"61951cdbd3c22cae6019a255889a755140aaf739305b35186a3574b5fd522b27"},"bundle_signature":{"signature_status":"signed_v1","algorithm":"ed25519","key_id":"pith-v1-2026-05","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54","signature_b64":"Ha7/kq0a2gLUG7fsK9LkQ3q6lxKBgdMws0Klw5UttrRP+xURSsE81k8UFneqGpCli3ngeqj9VFg8msoPxpl/CQ==","signed_message":"bundle_sha256_bytes","signed_at":"2026-07-07T05:10:41.381713Z","bundle_sha256":"11cf4b169bfc324d49b67116b8308a16641f599e0a311bc35738f5f6ae972f4f"}}