{"bundle_type":"pith_open_graph_bundle","bundle_version":"1.0","pith_number":"pith:2026:AGDDSEQFI7NUIXCZBYWWJXEIMO","short_pith_number":"pith:AGDDSEQF","canonical_record":{"source":{"id":"2605.23814","kind":"arxiv","version":1},"metadata":{"license":"http://creativecommons.org/licenses/by/4.0/","primary_cat":"astro-ph.IM","submitted_at":"2026-05-22T16:16:50Z","cross_cats_sorted":[],"title_canon_sha256":"64700eadd01f0c4384266b299fa80a283b22d0f02213f7041b75866e82320a48","abstract_canon_sha256":"d138bd22e3ca82452ee0dc66528309c32c035e44a64aff1ec91d60fff3d03248"},"schema_version":"1.0"},"canonical_sha256":"018639120547db445c590e2d64dc8863b0f380335d780b5392de91650840edb1","source":{"kind":"arxiv","id":"2605.23814","version":1},"source_aliases":[{"alias_kind":"arxiv","alias_value":"2605.23814","created_at":"2026-05-25T02:02:33Z"},{"alias_kind":"arxiv_version","alias_value":"2605.23814v1","created_at":"2026-05-25T02:02:33Z"},{"alias_kind":"doi","alias_value":"10.48550/arxiv.2605.23814","created_at":"2026-05-25T02:02:33Z"},{"alias_kind":"pith_short_12","alias_value":"AGDDSEQFI7NU","created_at":"2026-05-25T02:02:33Z"},{"alias_kind":"pith_short_16","alias_value":"AGDDSEQFI7NUIXCZ","created_at":"2026-05-25T02:02:33Z"},{"alias_kind":"pith_short_8","alias_value":"AGDDSEQF","created_at":"2026-05-25T02:02:33Z"}],"events":[{"event_type":"record_created","subject_pith_number":"pith:2026:AGDDSEQFI7NUIXCZBYWWJXEIMO","target":"record","payload":{"canonical_record":{"source":{"id":"2605.23814","kind":"arxiv","version":1},"metadata":{"license":"http://creativecommons.org/licenses/by/4.0/","primary_cat":"astro-ph.IM","submitted_at":"2026-05-22T16:16:50Z","cross_cats_sorted":[],"title_canon_sha256":"64700eadd01f0c4384266b299fa80a283b22d0f02213f7041b75866e82320a48","abstract_canon_sha256":"d138bd22e3ca82452ee0dc66528309c32c035e44a64aff1ec91d60fff3d03248"},"schema_version":"1.0"},"canonical_sha256":"018639120547db445c590e2d64dc8863b0f380335d780b5392de91650840edb1","receipt":{"kind":"pith_receipt","key_id":"pith-v1-2026-05","algorithm":"ed25519","signed_at":"2026-05-25T02:02:33.642001Z","signature_b64":"1E75De3A85rUxL83P4z9tU0XlYzw1PDAfbKweE7kx84aDnbouaJulXVFmvrnCZY5CI1carjLAu/X+QP8EwiBCQ==","signed_message":"canonical_sha256_bytes","builder_version":"pith-number-builder-2026-05-17-v1","receipt_version":"0.3","canonical_sha256":"018639120547db445c590e2d64dc8863b0f380335d780b5392de91650840edb1","last_reissued_at":"2026-05-25T02:02:33.641210Z","signature_status":"signed_v1","first_computed_at":"2026-05-25T02:02:33.641210Z","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54"},"source_kind":"arxiv","source_id":"2605.23814","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":"2026-05-25T02:02:33Z","supersedes":[],"prev_event":null,"signature":{"signature_status":"signed_v1","algorithm":"ed25519","key_id":"pith-v1-2026-05","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54","signature_b64":"P2nuAAG6fs9Qw30PSb/CU0RkAxR4jpAPcDNOOyNHdZqOCfjEITmEOMaJ6h2v5E9ZheNrRdsWcBcwN6/vFkP8Cw==","signed_message":"open_graph_event_sha256_bytes","signed_at":"2026-05-25T22:57:40.698657Z"},"content_sha256":"3756ec355798190554b4134f57fe821bc9d310d87ffb76c984354c5a8aef7b8b","schema_version":"1.0","event_id":"sha256:3756ec355798190554b4134f57fe821bc9d310d87ffb76c984354c5a8aef7b8b"},{"event_type":"graph_snapshot","subject_pith_number":"pith:2026:AGDDSEQFI7NUIXCZBYWWJXEIMO","target":"graph","payload":{"graph_snapshot":{"paper":{"title":"Integral field spectroscopy with no IFUs: combining wide-field rotational slitless spectroscopy with tomographic reconstruction","license":"http://creativecommons.org/licenses/by/4.0/","headline":"","cross_cats":[],"primary_cat":"astro-ph.IM","authors_text":"Francesco Sinigaglia, Jerry Jun-Yan Zhang","submitted_at":"2026-05-22T16:16:50Z","abstract_excerpt":"Among spectroscopic techniques, Integral Field Spectroscopy (IFS) is regarded as one of the most versatile and powerful, but it is limited by small FoVs, complex designs, and high costs. We hereby present ROSSINI: the ROtational Slitless Spectrograph for INtegral field spectroscopy and Imager, a novel spectrograph design aimed at performing IFS without IFUs but in a slitless fashion instead. The device relies on generating a series of independent detector images of the same field by rotating the whole telescope and/or the dispersion direction of the optical element, and on a postprocessing tom"},"claims":{"count":0,"items":[],"snapshot_sha256":"258153158e38e3291e3d48162225fcdb2d5a3ed65a07baac614ab91432fd4f57"},"source":{"id":"2605.23814","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/2605.23814/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":"2026-05-25T02:02:33Z","supersedes":[],"prev_event":null,"signature":{"signature_status":"signed_v1","algorithm":"ed25519","key_id":"pith-v1-2026-05","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54","signature_b64":"QIbvSwQr2EnbdwXncbCQbjuKiVx1lkZW53CP5RYQepr2whp3RTGzWQDyWb9LjzDXtFNRJXj7gwX1k5w6Zn8vCQ==","signed_message":"open_graph_event_sha256_bytes","signed_at":"2026-05-25T22:57:40.699375Z"},"content_sha256":"5c1d6888872b653f1dd5aa9ff99f3e5b56b627df080d7dc3a4f94b25047023ec","schema_version":"1.0","event_id":"sha256:5c1d6888872b653f1dd5aa9ff99f3e5b56b627df080d7dc3a4f94b25047023ec"}],"timestamp_proofs":[],"mirror_hints":[{"mirror_type":"https","name":"Pith Resolver","base_url":"https://pith.science","bundle_url":"https://pith.science/pith/AGDDSEQFI7NUIXCZBYWWJXEIMO/bundle.json","state_url":"https://pith.science/pith/AGDDSEQFI7NUIXCZBYWWJXEIMO/state.json","well_known_bundle_url":"https://pith.science/.well-known/pith/AGDDSEQFI7NUIXCZBYWWJXEIMO/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":"2026-05-25T22:57:40Z","links":{"resolver":"https://pith.science/pith/AGDDSEQFI7NUIXCZBYWWJXEIMO","bundle":"https://pith.science/pith/AGDDSEQFI7NUIXCZBYWWJXEIMO/bundle.json","state":"https://pith.science/pith/AGDDSEQFI7NUIXCZBYWWJXEIMO/state.json","well_known_bundle":"https://pith.science/.well-known/pith/AGDDSEQFI7NUIXCZBYWWJXEIMO/bundle.json"},"state":{"state_type":"pith_open_graph_state","state_version":"1.0","pith_number":"pith:2026:AGDDSEQFI7NUIXCZBYWWJXEIMO","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":"d138bd22e3ca82452ee0dc66528309c32c035e44a64aff1ec91d60fff3d03248","cross_cats_sorted":[],"license":"http://creativecommons.org/licenses/by/4.0/","primary_cat":"astro-ph.IM","submitted_at":"2026-05-22T16:16:50Z","title_canon_sha256":"64700eadd01f0c4384266b299fa80a283b22d0f02213f7041b75866e82320a48"},"schema_version":"1.0","source":{"id":"2605.23814","kind":"arxiv","version":1}},"source_aliases":[{"alias_kind":"arxiv","alias_value":"2605.23814","created_at":"2026-05-25T02:02:33Z"},{"alias_kind":"arxiv_version","alias_value":"2605.23814v1","created_at":"2026-05-25T02:02:33Z"},{"alias_kind":"doi","alias_value":"10.48550/arxiv.2605.23814","created_at":"2026-05-25T02:02:33Z"},{"alias_kind":"pith_short_12","alias_value":"AGDDSEQFI7NU","created_at":"2026-05-25T02:02:33Z"},{"alias_kind":"pith_short_16","alias_value":"AGDDSEQFI7NUIXCZ","created_at":"2026-05-25T02:02:33Z"},{"alias_kind":"pith_short_8","alias_value":"AGDDSEQF","created_at":"2026-05-25T02:02:33Z"}],"graph_snapshots":[{"event_id":"sha256:5c1d6888872b653f1dd5aa9ff99f3e5b56b627df080d7dc3a4f94b25047023ec","target":"graph","created_at":"2026-05-25T02:02:33Z","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/2605.23814/integrity.json","findings":[],"snapshot_sha256":"c28c3603d3b5d939e8dc4c7e95fa8dfce3d595e45f758748cecf8e644a296938","summary":{"advisory":0,"by_detector":{},"critical":0,"informational":0}},"paper":{"abstract_excerpt":"Among spectroscopic techniques, Integral Field Spectroscopy (IFS) is regarded as one of the most versatile and powerful, but it is limited by small FoVs, complex designs, and high costs. We hereby present ROSSINI: the ROtational Slitless Spectrograph for INtegral field spectroscopy and Imager, a novel spectrograph design aimed at performing IFS without IFUs but in a slitless fashion instead. The device relies on generating a series of independent detector images of the same field by rotating the whole telescope and/or the dispersion direction of the optical element, and on a postprocessing tom","authors_text":"Francesco Sinigaglia, Jerry Jun-Yan Zhang","cross_cats":[],"headline":"","license":"http://creativecommons.org/licenses/by/4.0/","primary_cat":"astro-ph.IM","submitted_at":"2026-05-22T16:16:50Z","title":"Integral field spectroscopy with no IFUs: combining wide-field rotational slitless spectroscopy with tomographic reconstruction"},"references":{"count":0,"internal_anchors":0,"resolved_work":0,"sample":[],"snapshot_sha256":"258153158e38e3291e3d48162225fcdb2d5a3ed65a07baac614ab91432fd4f57"},"source":{"id":"2605.23814","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":"sha256:3756ec355798190554b4134f57fe821bc9d310d87ffb76c984354c5a8aef7b8b","target":"record","created_at":"2026-05-25T02:02:33Z","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":"d138bd22e3ca82452ee0dc66528309c32c035e44a64aff1ec91d60fff3d03248","cross_cats_sorted":[],"license":"http://creativecommons.org/licenses/by/4.0/","primary_cat":"astro-ph.IM","submitted_at":"2026-05-22T16:16:50Z","title_canon_sha256":"64700eadd01f0c4384266b299fa80a283b22d0f02213f7041b75866e82320a48"},"schema_version":"1.0","source":{"id":"2605.23814","kind":"arxiv","version":1}},"canonical_sha256":"018639120547db445c590e2d64dc8863b0f380335d780b5392de91650840edb1","receipt":{"algorithm":"ed25519","builder_version":"pith-number-builder-2026-05-17-v1","canonical_sha256":"018639120547db445c590e2d64dc8863b0f380335d780b5392de91650840edb1","first_computed_at":"2026-05-25T02:02:33.641210Z","key_id":"pith-v1-2026-05","kind":"pith_receipt","last_reissued_at":"2026-05-25T02:02:33.641210Z","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54","receipt_version":"0.3","signature_b64":"1E75De3A85rUxL83P4z9tU0XlYzw1PDAfbKweE7kx84aDnbouaJulXVFmvrnCZY5CI1carjLAu/X+QP8EwiBCQ==","signature_status":"signed_v1","signed_at":"2026-05-25T02:02:33.642001Z","signed_message":"canonical_sha256_bytes"},"source_id":"2605.23814","source_kind":"arxiv","source_version":1}}},"equivocations":[],"invalid_events":[],"applied_event_ids":["sha256:3756ec355798190554b4134f57fe821bc9d310d87ffb76c984354c5a8aef7b8b","sha256:5c1d6888872b653f1dd5aa9ff99f3e5b56b627df080d7dc3a4f94b25047023ec"],"state_sha256":"13fd85c0fe4bd67ebb96dedd83c3d6df1c2c52817b9db643f6487803d2ca9689"},"bundle_signature":{"signature_status":"signed_v1","algorithm":"ed25519","key_id":"pith-v1-2026-05","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54","signature_b64":"K3c1RtMllY8rIurfTj6dYlVK2lNnNZw3+4Uqq83u0M/q4LM22hPUEjTap8XsasyO3ve0rCHyXuW5tcFpm8HCCA==","signed_message":"bundle_sha256_bytes","signed_at":"2026-05-25T22:57:40.702009Z","bundle_sha256":"31d0c375b38813de4c65bc0ce0fc296b47d0339451bcc48c2d38386df845bff3"}}