{"bundle_type":"pith_open_graph_bundle","bundle_version":"1.0","pith_number":"pith:2022:M6KNYEIN54FQ6SABCR4QFMGAWB","short_pith_number":"pith:M6KNYEIN","canonical_record":{"source":{"id":"2212.10971","kind":"arxiv","version":1},"metadata":{"license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"astro-ph.SR","submitted_at":"2022-12-21T12:17:03Z","cross_cats_sorted":["astro-ph.GA"],"title_canon_sha256":"26c095b926b859939e7c34b9b6dede488b4a153bfb941f92ff82c873f5ba980c","abstract_canon_sha256":"3873993ac1a4cc5cdb09e29c0cc5f3c67eda23b3ba29bb9ba3415f4ec72877fa"},"schema_version":"1.0"},"canonical_sha256":"6794dc110def0b0f4801147902b0c0b0638a4f002c2f76eb84d5796c96d1f249","source":{"kind":"arxiv","id":"2212.10971","version":1},"source_aliases":[{"alias_kind":"arxiv","alias_value":"2212.10971","created_at":"2026-07-05T05:30:20Z"},{"alias_kind":"arxiv_version","alias_value":"2212.10971v1","created_at":"2026-07-05T05:30:20Z"},{"alias_kind":"doi","alias_value":"10.48550/arxiv.2212.10971","created_at":"2026-07-05T05:30:20Z"},{"alias_kind":"pith_short_12","alias_value":"M6KNYEIN54FQ","created_at":"2026-07-05T05:30:20Z"},{"alias_kind":"pith_short_16","alias_value":"M6KNYEIN54FQ6SAB","created_at":"2026-07-05T05:30:20Z"},{"alias_kind":"pith_short_8","alias_value":"M6KNYEIN","created_at":"2026-07-05T05:30:20Z"}],"events":[{"event_type":"record_created","subject_pith_number":"pith:2022:M6KNYEIN54FQ6SABCR4QFMGAWB","target":"record","payload":{"canonical_record":{"source":{"id":"2212.10971","kind":"arxiv","version":1},"metadata":{"license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"astro-ph.SR","submitted_at":"2022-12-21T12:17:03Z","cross_cats_sorted":["astro-ph.GA"],"title_canon_sha256":"26c095b926b859939e7c34b9b6dede488b4a153bfb941f92ff82c873f5ba980c","abstract_canon_sha256":"3873993ac1a4cc5cdb09e29c0cc5f3c67eda23b3ba29bb9ba3415f4ec72877fa"},"schema_version":"1.0"},"canonical_sha256":"6794dc110def0b0f4801147902b0c0b0638a4f002c2f76eb84d5796c96d1f249","receipt":{"kind":"pith_receipt","key_id":"pith-v1-2026-05","algorithm":"ed25519","signed_at":"2026-07-05T05:30:20.586157Z","signature_b64":"+FJ5z9Tt7XXp2Fpv6sC1BUP3e0l9jbvDt4EwBXwigjpyc1BUninxgQD/2A68njrY5SP68NN/mgtK1TZ8FIOPAw==","signed_message":"canonical_sha256_bytes","builder_version":"pith-number-builder-2026-05-17-v1","receipt_version":"0.3","canonical_sha256":"6794dc110def0b0f4801147902b0c0b0638a4f002c2f76eb84d5796c96d1f249","last_reissued_at":"2026-07-05T05:30:20.585688Z","signature_status":"signed_v1","first_computed_at":"2026-07-05T05:30:20.585688Z","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54"},"source_kind":"arxiv","source_id":"2212.10971","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":"2026-07-05T05:30:20Z","supersedes":[],"prev_event":null,"signature":{"signature_status":"signed_v1","algorithm":"ed25519","key_id":"pith-v1-2026-05","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54","signature_b64":"/gANoQuqkStJu/UuIFu3iMjSi5UJDXmq6CQkGH5BtcB1irz+lljS7WAB9hlkvDo4DqlPo84ufLTCxkVR8my9Bw==","signed_message":"open_graph_event_sha256_bytes","signed_at":"2026-08-04T16:19:38.200926Z"},"content_sha256":"adc21c255179b4a4efe451e191bed82f9ee770d2619a3f7b8f2094f8f3fe9c33","schema_version":"1.0","event_id":"sha256:adc21c255179b4a4efe451e191bed82f9ee770d2619a3f7b8f2094f8f3fe9c33"},{"event_type":"graph_snapshot","subject_pith_number":"pith:2022:M6KNYEIN54FQ6SABCR4QFMGAWB","target":"graph","payload":{"graph_snapshot":{"paper":{"title":"MEGASTAR (III). Stellar parameters and data products for DR1 late-type stars","license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","headline":"","cross_cats":["astro-ph.GA"],"primary_cat":"astro-ph.SR","authors_text":"A. Gil de Paz, E. Carrasco, I. Mill\\'an-Irigoyen, M.L. Garc\\'ia-Vargas, M. Moll\\'a, N. Cardiel, P. G\\'omez-\\'Alvarez, S.R. Berlanas","submitted_at":"2022-12-21T12:17:03Z","abstract_excerpt":"MEGARA is the optical integral field and multi-object spectrograph at the Gran Telescopio Canarias. We have created MEGASTAR, an empirical library of stellar spectra obtained using MEGARA at high resolution $R=20\\,000$ (FWHM), available in two wavelength ranges: one centered in H${\\alpha}$, from 6420 to 6790\\,\\AA\\ and the other centered in the \\ion{Ca}{ii} triplet, from 8370 to 8885\\,\\AA\\ (\\mbox{HR-R} and \\mbox{HR-I} VPH-grating configurations). In this work, we use MEGASTAR spectra, combination of these two short wavelength intervals, to estimate the stellar parameters namely effective temper"},"claims":{"count":0,"items":[],"snapshot_sha256":"258153158e38e3291e3d48162225fcdb2d5a3ed65a07baac614ab91432fd4f57"},"source":{"id":"2212.10971","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/2212.10971/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":"2026-07-05T05:30:20Z","supersedes":[],"prev_event":null,"signature":{"signature_status":"signed_v1","algorithm":"ed25519","key_id":"pith-v1-2026-05","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54","signature_b64":"YJSb6FdJzMg3abo2dQQ9lUl8/T2Wz+zzXwOjLWtlh8A6GuNyEqq4IpxOwBc9C8m0LgLK/10/dIm2palim3mLDg==","signed_message":"open_graph_event_sha256_bytes","signed_at":"2026-08-04T16:19:38.201481Z"},"content_sha256":"7871309d06b2e7dd1ad683933b7b6d9e0c54b8b5c9437a6c6cf5851b8c2cbb81","schema_version":"1.0","event_id":"sha256:7871309d06b2e7dd1ad683933b7b6d9e0c54b8b5c9437a6c6cf5851b8c2cbb81"}],"timestamp_proofs":[],"mirror_hints":[{"mirror_type":"https","name":"Pith Resolver","base_url":"https://pith.science","bundle_url":"https://pith.science/pith/M6KNYEIN54FQ6SABCR4QFMGAWB/bundle.json","state_url":"https://pith.science/pith/M6KNYEIN54FQ6SABCR4QFMGAWB/state.json","well_known_bundle_url":"https://pith.science/.well-known/pith/M6KNYEIN54FQ6SABCR4QFMGAWB/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":"2026-08-04T16:19:38Z","links":{"resolver":"https://pith.science/pith/M6KNYEIN54FQ6SABCR4QFMGAWB","bundle":"https://pith.science/pith/M6KNYEIN54FQ6SABCR4QFMGAWB/bundle.json","state":"https://pith.science/pith/M6KNYEIN54FQ6SABCR4QFMGAWB/state.json","well_known_bundle":"https://pith.science/.well-known/pith/M6KNYEIN54FQ6SABCR4QFMGAWB/bundle.json"},"state":{"state_type":"pith_open_graph_state","state_version":"1.0","pith_number":"pith:2022:M6KNYEIN54FQ6SABCR4QFMGAWB","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":"3873993ac1a4cc5cdb09e29c0cc5f3c67eda23b3ba29bb9ba3415f4ec72877fa","cross_cats_sorted":["astro-ph.GA"],"license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"astro-ph.SR","submitted_at":"2022-12-21T12:17:03Z","title_canon_sha256":"26c095b926b859939e7c34b9b6dede488b4a153bfb941f92ff82c873f5ba980c"},"schema_version":"1.0","source":{"id":"2212.10971","kind":"arxiv","version":1}},"source_aliases":[{"alias_kind":"arxiv","alias_value":"2212.10971","created_at":"2026-07-05T05:30:20Z"},{"alias_kind":"arxiv_version","alias_value":"2212.10971v1","created_at":"2026-07-05T05:30:20Z"},{"alias_kind":"doi","alias_value":"10.48550/arxiv.2212.10971","created_at":"2026-07-05T05:30:20Z"},{"alias_kind":"pith_short_12","alias_value":"M6KNYEIN54FQ","created_at":"2026-07-05T05:30:20Z"},{"alias_kind":"pith_short_16","alias_value":"M6KNYEIN54FQ6SAB","created_at":"2026-07-05T05:30:20Z"},{"alias_kind":"pith_short_8","alias_value":"M6KNYEIN","created_at":"2026-07-05T05:30:20Z"}],"graph_snapshots":[{"event_id":"sha256:7871309d06b2e7dd1ad683933b7b6d9e0c54b8b5c9437a6c6cf5851b8c2cbb81","target":"graph","created_at":"2026-07-05T05:30:20Z","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/2212.10971/integrity.json","findings":[],"snapshot_sha256":"c28c3603d3b5d939e8dc4c7e95fa8dfce3d595e45f758748cecf8e644a296938","summary":{"advisory":0,"by_detector":{},"critical":0,"informational":0}},"paper":{"abstract_excerpt":"MEGARA is the optical integral field and multi-object spectrograph at the Gran Telescopio Canarias. We have created MEGASTAR, an empirical library of stellar spectra obtained using MEGARA at high resolution $R=20\\,000$ (FWHM), available in two wavelength ranges: one centered in H${\\alpha}$, from 6420 to 6790\\,\\AA\\ and the other centered in the \\ion{Ca}{ii} triplet, from 8370 to 8885\\,\\AA\\ (\\mbox{HR-R} and \\mbox{HR-I} VPH-grating configurations). In this work, we use MEGASTAR spectra, combination of these two short wavelength intervals, to estimate the stellar parameters namely effective temper","authors_text":"A. Gil de Paz, E. Carrasco, I. Mill\\'an-Irigoyen, M.L. Garc\\'ia-Vargas, M. Moll\\'a, N. Cardiel, P. G\\'omez-\\'Alvarez, S.R. Berlanas","cross_cats":["astro-ph.GA"],"headline":"","license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"astro-ph.SR","submitted_at":"2022-12-21T12:17:03Z","title":"MEGASTAR (III). Stellar parameters and data products for DR1 late-type stars"},"references":{"count":0,"internal_anchors":0,"resolved_work":0,"sample":[],"snapshot_sha256":"258153158e38e3291e3d48162225fcdb2d5a3ed65a07baac614ab91432fd4f57"},"source":{"id":"2212.10971","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:adc21c255179b4a4efe451e191bed82f9ee770d2619a3f7b8f2094f8f3fe9c33","target":"record","created_at":"2026-07-05T05:30:20Z","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":"3873993ac1a4cc5cdb09e29c0cc5f3c67eda23b3ba29bb9ba3415f4ec72877fa","cross_cats_sorted":["astro-ph.GA"],"license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"astro-ph.SR","submitted_at":"2022-12-21T12:17:03Z","title_canon_sha256":"26c095b926b859939e7c34b9b6dede488b4a153bfb941f92ff82c873f5ba980c"},"schema_version":"1.0","source":{"id":"2212.10971","kind":"arxiv","version":1}},"canonical_sha256":"6794dc110def0b0f4801147902b0c0b0638a4f002c2f76eb84d5796c96d1f249","receipt":{"algorithm":"ed25519","builder_version":"pith-number-builder-2026-05-17-v1","canonical_sha256":"6794dc110def0b0f4801147902b0c0b0638a4f002c2f76eb84d5796c96d1f249","first_computed_at":"2026-07-05T05:30:20.585688Z","key_id":"pith-v1-2026-05","kind":"pith_receipt","last_reissued_at":"2026-07-05T05:30:20.585688Z","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54","receipt_version":"0.3","signature_b64":"+FJ5z9Tt7XXp2Fpv6sC1BUP3e0l9jbvDt4EwBXwigjpyc1BUninxgQD/2A68njrY5SP68NN/mgtK1TZ8FIOPAw==","signature_status":"signed_v1","signed_at":"2026-07-05T05:30:20.586157Z","signed_message":"canonical_sha256_bytes"},"source_id":"2212.10971","source_kind":"arxiv","source_version":1}}},"equivocations":[],"invalid_events":[],"applied_event_ids":["sha256:adc21c255179b4a4efe451e191bed82f9ee770d2619a3f7b8f2094f8f3fe9c33","sha256:7871309d06b2e7dd1ad683933b7b6d9e0c54b8b5c9437a6c6cf5851b8c2cbb81"],"state_sha256":"1ebd9542a501088e2e4b0f43140fe3674452d2ddc8d60697220687e532a0bc5c"},"bundle_signature":{"signature_status":"signed_v1","algorithm":"ed25519","key_id":"pith-v1-2026-05","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54","signature_b64":"xK9TRRyb6z521KcR3FS2E5g+RXhFYZdxoIBX7XJewfD2MSW6o6SI/0+hmBi+KJwKjzAt9xNNJN51F3VCXQUVCQ==","signed_message":"bundle_sha256_bytes","signed_at":"2026-08-04T16:19:38.206050Z","bundle_sha256":"89650d8b6fffafc88df387b0cf1e8fe7c2e4541f2191ef02e36c15fa4dc70808"}}