{"bundle_type":"pith_open_graph_bundle","bundle_version":"1.0","pith_number":"pith:2026:VIECQURLNXNARUXXJJ2TIUVLZ3","short_pith_number":"pith:VIECQURL","canonical_record":{"source":{"id":"2608.01493","kind":"arxiv","version":1},"metadata":{"license":"http://creativecommons.org/licenses/by/4.0/","primary_cat":"astro-ph.IM","submitted_at":"2026-08-02T20:52:59Z","cross_cats_sorted":["astro-ph.EP","astro-ph.SR"],"title_canon_sha256":"44487d6c0ae035b39a7143e0d1c1adff973696787b81366c04d2df46c7e6a7b9","abstract_canon_sha256":"94e5dff2ef16fe41144b77668245bcc85fe25da1ef2ca98a5aa29f65c207821a"},"schema_version":"1.0"},"canonical_sha256":"aa0828522b6dda08d2f74a753452abcec5b3bcad003a288357ffc9a436553cb2","source":{"kind":"arxiv","id":"2608.01493","version":1},"source_aliases":[{"alias_kind":"arxiv","alias_value":"2608.01493","created_at":"2026-08-04T02:05:31Z"},{"alias_kind":"arxiv_version","alias_value":"2608.01493v1","created_at":"2026-08-04T02:05:31Z"},{"alias_kind":"doi","alias_value":"10.48550/arxiv.2608.01493","created_at":"2026-08-04T02:05:31Z"},{"alias_kind":"pith_short_12","alias_value":"VIECQURLNXNA","created_at":"2026-08-04T02:05:31Z"},{"alias_kind":"pith_short_16","alias_value":"VIECQURLNXNARUXX","created_at":"2026-08-04T02:05:31Z"},{"alias_kind":"pith_short_8","alias_value":"VIECQURL","created_at":"2026-08-04T02:05:31Z"}],"events":[{"event_type":"record_created","subject_pith_number":"pith:2026:VIECQURLNXNARUXXJJ2TIUVLZ3","target":"record","payload":{"canonical_record":{"source":{"id":"2608.01493","kind":"arxiv","version":1},"metadata":{"license":"http://creativecommons.org/licenses/by/4.0/","primary_cat":"astro-ph.IM","submitted_at":"2026-08-02T20:52:59Z","cross_cats_sorted":["astro-ph.EP","astro-ph.SR"],"title_canon_sha256":"44487d6c0ae035b39a7143e0d1c1adff973696787b81366c04d2df46c7e6a7b9","abstract_canon_sha256":"94e5dff2ef16fe41144b77668245bcc85fe25da1ef2ca98a5aa29f65c207821a"},"schema_version":"1.0"},"canonical_sha256":"aa0828522b6dda08d2f74a753452abcec5b3bcad003a288357ffc9a436553cb2","receipt":{"kind":"pith_receipt","key_id":"pith-v1-2026-05","algorithm":"ed25519","signed_at":"2026-08-04T02:05:31.257336Z","signature_b64":"YsB3t+SaSJVTHrHSHmpY+wQKh2iSTYqCmiQ4AujmMQCfqKUrKPmClh2PJEPDY9k5udijDAEtNw/Au2RSLN0YCw==","signed_message":"canonical_sha256_bytes","builder_version":"pith-number-builder-2026-05-17-v1","receipt_version":"0.3","canonical_sha256":"aa0828522b6dda08d2f74a753452abcec5b3bcad003a288357ffc9a436553cb2","last_reissued_at":"2026-08-04T02:05:31.255701Z","signature_status":"signed_v1","first_computed_at":"2026-08-04T02:05:31.255701Z","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54"},"source_kind":"arxiv","source_id":"2608.01493","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":"2026-08-04T02:05:31Z","supersedes":[],"prev_event":null,"signature":{"signature_status":"signed_v1","algorithm":"ed25519","key_id":"pith-v1-2026-05","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54","signature_b64":"U1W40N/hMy9SY7dt/tkZj3Zw4SFh2PBflv06MelSU/u1QGOOnV58h41VIg6PHuuV4ZMX/LRN42c8lB9EaujpAw==","signed_message":"open_graph_event_sha256_bytes","signed_at":"2026-08-09T22:05:49.868858Z"},"content_sha256":"677807edc5ab40bfc62035a1b9ffa9d48c6626c22ecd92269db0310d1f8f235d","schema_version":"1.0","event_id":"sha256:677807edc5ab40bfc62035a1b9ffa9d48c6626c22ecd92269db0310d1f8f235d"},{"event_type":"graph_snapshot","subject_pith_number":"pith:2026:VIECQURLNXNARUXXJJ2TIUVLZ3","target":"graph","payload":{"graph_snapshot":{"paper":{"title":"MiraSOL: a DMD-based spectrograph for resolved solar spectroscopy","license":"http://creativecommons.org/licenses/by/4.0/","headline":"","cross_cats":["astro-ph.EP","astro-ph.SR"],"primary_cat":"astro-ph.IM","authors_text":"Christian Robles, Lawrence Ramsey, Suvrath Mahadevan","submitted_at":"2026-08-02T20:52:59Z","abstract_excerpt":"We present the science motivation, preliminary design requirements, device laboratory testing and a prototype for an new experimental platform for solar observations, MiraSOL. MiraSOL will use digital micromirror technology to actively select regions on the solar disk for spectroscopic observation to determine the spatially dependent radial velocity signatures of stellar variability, and can create transits on the solar disk to probe the effects of stellar contamination on exoplanet transmission spectra. MiraSOL uses the Texas Instruments DLP801RE as a spatial light modulator to allow a mask, "},"claims":{"count":0,"items":[],"snapshot_sha256":"258153158e38e3291e3d48162225fcdb2d5a3ed65a07baac614ab91432fd4f57"},"source":{"id":"2608.01493","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/2608.01493/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":"2026-08-04T02:05:31Z","supersedes":[],"prev_event":null,"signature":{"signature_status":"signed_v1","algorithm":"ed25519","key_id":"pith-v1-2026-05","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54","signature_b64":"Ox2wVaxq7cXwc5jtaOo5tX9jGEhoTHamEz0E68HXAO0dF8iveCTaiMuj4ZGRf9IQK0whHH8XG3sRElEi2RAODw==","signed_message":"open_graph_event_sha256_bytes","signed_at":"2026-08-09T22:05:49.869364Z"},"content_sha256":"067764c8cbe3d843b5103bbbcc47058463d6cc9ab8ea82158438f96d202c17d1","schema_version":"1.0","event_id":"sha256:067764c8cbe3d843b5103bbbcc47058463d6cc9ab8ea82158438f96d202c17d1"}],"timestamp_proofs":[],"mirror_hints":[{"mirror_type":"https","name":"Pith Resolver","base_url":"https://pith.science","bundle_url":"https://pith.science/pith/VIECQURLNXNARUXXJJ2TIUVLZ3/bundle.json","state_url":"https://pith.science/pith/VIECQURLNXNARUXXJJ2TIUVLZ3/state.json","well_known_bundle_url":"https://pith.science/.well-known/pith/VIECQURLNXNARUXXJJ2TIUVLZ3/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":"2026-08-09T22:05:49Z","links":{"resolver":"https://pith.science/pith/VIECQURLNXNARUXXJJ2TIUVLZ3","bundle":"https://pith.science/pith/VIECQURLNXNARUXXJJ2TIUVLZ3/bundle.json","state":"https://pith.science/pith/VIECQURLNXNARUXXJJ2TIUVLZ3/state.json","well_known_bundle":"https://pith.science/.well-known/pith/VIECQURLNXNARUXXJJ2TIUVLZ3/bundle.json"},"state":{"state_type":"pith_open_graph_state","state_version":"1.0","pith_number":"pith:2026:VIECQURLNXNARUXXJJ2TIUVLZ3","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":"94e5dff2ef16fe41144b77668245bcc85fe25da1ef2ca98a5aa29f65c207821a","cross_cats_sorted":["astro-ph.EP","astro-ph.SR"],"license":"http://creativecommons.org/licenses/by/4.0/","primary_cat":"astro-ph.IM","submitted_at":"2026-08-02T20:52:59Z","title_canon_sha256":"44487d6c0ae035b39a7143e0d1c1adff973696787b81366c04d2df46c7e6a7b9"},"schema_version":"1.0","source":{"id":"2608.01493","kind":"arxiv","version":1}},"source_aliases":[{"alias_kind":"arxiv","alias_value":"2608.01493","created_at":"2026-08-04T02:05:31Z"},{"alias_kind":"arxiv_version","alias_value":"2608.01493v1","created_at":"2026-08-04T02:05:31Z"},{"alias_kind":"doi","alias_value":"10.48550/arxiv.2608.01493","created_at":"2026-08-04T02:05:31Z"},{"alias_kind":"pith_short_12","alias_value":"VIECQURLNXNA","created_at":"2026-08-04T02:05:31Z"},{"alias_kind":"pith_short_16","alias_value":"VIECQURLNXNARUXX","created_at":"2026-08-04T02:05:31Z"},{"alias_kind":"pith_short_8","alias_value":"VIECQURL","created_at":"2026-08-04T02:05:31Z"}],"graph_snapshots":[{"event_id":"sha256:067764c8cbe3d843b5103bbbcc47058463d6cc9ab8ea82158438f96d202c17d1","target":"graph","created_at":"2026-08-04T02:05:31Z","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/2608.01493/integrity.json","findings":[],"snapshot_sha256":"c28c3603d3b5d939e8dc4c7e95fa8dfce3d595e45f758748cecf8e644a296938","summary":{"advisory":0,"by_detector":{},"critical":0,"informational":0}},"paper":{"abstract_excerpt":"We present the science motivation, preliminary design requirements, device laboratory testing and a prototype for an new experimental platform for solar observations, MiraSOL. MiraSOL will use digital micromirror technology to actively select regions on the solar disk for spectroscopic observation to determine the spatially dependent radial velocity signatures of stellar variability, and can create transits on the solar disk to probe the effects of stellar contamination on exoplanet transmission spectra. MiraSOL uses the Texas Instruments DLP801RE as a spatial light modulator to allow a mask, ","authors_text":"Christian Robles, Lawrence Ramsey, Suvrath Mahadevan","cross_cats":["astro-ph.EP","astro-ph.SR"],"headline":"","license":"http://creativecommons.org/licenses/by/4.0/","primary_cat":"astro-ph.IM","submitted_at":"2026-08-02T20:52:59Z","title":"MiraSOL: a DMD-based spectrograph for resolved solar spectroscopy"},"references":{"count":0,"internal_anchors":0,"resolved_work":0,"sample":[],"snapshot_sha256":"258153158e38e3291e3d48162225fcdb2d5a3ed65a07baac614ab91432fd4f57"},"source":{"id":"2608.01493","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":"sha256:677807edc5ab40bfc62035a1b9ffa9d48c6626c22ecd92269db0310d1f8f235d","target":"record","created_at":"2026-08-04T02:05:31Z","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":"94e5dff2ef16fe41144b77668245bcc85fe25da1ef2ca98a5aa29f65c207821a","cross_cats_sorted":["astro-ph.EP","astro-ph.SR"],"license":"http://creativecommons.org/licenses/by/4.0/","primary_cat":"astro-ph.IM","submitted_at":"2026-08-02T20:52:59Z","title_canon_sha256":"44487d6c0ae035b39a7143e0d1c1adff973696787b81366c04d2df46c7e6a7b9"},"schema_version":"1.0","source":{"id":"2608.01493","kind":"arxiv","version":1}},"canonical_sha256":"aa0828522b6dda08d2f74a753452abcec5b3bcad003a288357ffc9a436553cb2","receipt":{"algorithm":"ed25519","builder_version":"pith-number-builder-2026-05-17-v1","canonical_sha256":"aa0828522b6dda08d2f74a753452abcec5b3bcad003a288357ffc9a436553cb2","first_computed_at":"2026-08-04T02:05:31.255701Z","key_id":"pith-v1-2026-05","kind":"pith_receipt","last_reissued_at":"2026-08-04T02:05:31.255701Z","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54","receipt_version":"0.3","signature_b64":"YsB3t+SaSJVTHrHSHmpY+wQKh2iSTYqCmiQ4AujmMQCfqKUrKPmClh2PJEPDY9k5udijDAEtNw/Au2RSLN0YCw==","signature_status":"signed_v1","signed_at":"2026-08-04T02:05:31.257336Z","signed_message":"canonical_sha256_bytes"},"source_id":"2608.01493","source_kind":"arxiv","source_version":1}}},"equivocations":[],"invalid_events":[],"applied_event_ids":["sha256:677807edc5ab40bfc62035a1b9ffa9d48c6626c22ecd92269db0310d1f8f235d","sha256:067764c8cbe3d843b5103bbbcc47058463d6cc9ab8ea82158438f96d202c17d1"],"state_sha256":"a1c98e11079f761bc55a4f21d20f61f0c09f1fa7ac1db5f95aaebdd8fa5fe28c"},"bundle_signature":{"signature_status":"signed_v1","algorithm":"ed25519","key_id":"pith-v1-2026-05","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54","signature_b64":"G3p7W/ubE47C+t562g+NjPbHtboO/qGWzhK2nOhg3dVxOt/2+g4O0TQjsRcgalMSQReta0L9BAw1G4ZAoJ9wCQ==","signed_message":"bundle_sha256_bytes","signed_at":"2026-08-09T22:05:49.872905Z","bundle_sha256":"14a5a6c138114423ffa121498175a5668aece434d554157036f7159bef864f34"}}