{"bundle_type":"pith_open_graph_bundle","bundle_version":"1.0","pith_number":"pith:2011:3Q7D2WLVXH563IVYU4WSS2LG6M","short_pith_number":"pith:3Q7D2WLV","canonical_record":{"source":{"id":"1107.2303","kind":"arxiv","version":1},"metadata":{"license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"astro-ph.CO","submitted_at":"2011-07-12T14:39:19Z","cross_cats_sorted":[],"title_canon_sha256":"90c8ceba4698967da292d2304e1321448b8318e3d53ffd1b4c5675d16949e20a","abstract_canon_sha256":"e1d32b8bdb9951ea2da5da142ace698b1eab68861e33c1c7022832f2d77827af"},"schema_version":"1.0"},"canonical_sha256":"dc3e3d5975b9fbeda2b8a72d296966f32c51824a0e598e68cdc13e5bac54cdf9","source":{"kind":"arxiv","id":"1107.2303","version":1},"source_aliases":[{"alias_kind":"arxiv","alias_value":"1107.2303","created_at":"2026-05-18T02:01:19Z"},{"alias_kind":"arxiv_version","alias_value":"1107.2303v1","created_at":"2026-05-18T02:01:19Z"},{"alias_kind":"doi","alias_value":"10.48550/arxiv.1107.2303","created_at":"2026-05-18T02:01:19Z"},{"alias_kind":"pith_short_12","alias_value":"3Q7D2WLVXH56","created_at":"2026-05-18T12:26:18Z"},{"alias_kind":"pith_short_16","alias_value":"3Q7D2WLVXH563IVY","created_at":"2026-05-18T12:26:18Z"},{"alias_kind":"pith_short_8","alias_value":"3Q7D2WLV","created_at":"2026-05-18T12:26:18Z"}],"events":[{"event_type":"record_created","subject_pith_number":"pith:2011:3Q7D2WLVXH563IVYU4WSS2LG6M","target":"record","payload":{"canonical_record":{"source":{"id":"1107.2303","kind":"arxiv","version":1},"metadata":{"license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"astro-ph.CO","submitted_at":"2011-07-12T14:39:19Z","cross_cats_sorted":[],"title_canon_sha256":"90c8ceba4698967da292d2304e1321448b8318e3d53ffd1b4c5675d16949e20a","abstract_canon_sha256":"e1d32b8bdb9951ea2da5da142ace698b1eab68861e33c1c7022832f2d77827af"},"schema_version":"1.0"},"canonical_sha256":"dc3e3d5975b9fbeda2b8a72d296966f32c51824a0e598e68cdc13e5bac54cdf9","receipt":{"kind":"pith_receipt","key_id":"pith-v1-2026-05","algorithm":"ed25519","signed_at":"2026-05-18T02:01:19.651172Z","signature_b64":"8i/XeBaIKZtTvnArRFUlrrA0J5zam3JGWLWKmjoVGp8M2lY+58Gen91zjW6A+x218gWRded2tTfmNDEPiB6lCg==","signed_message":"canonical_sha256_bytes","builder_version":"pith-number-builder-2026-05-17-v1","receipt_version":"0.3","canonical_sha256":"dc3e3d5975b9fbeda2b8a72d296966f32c51824a0e598e68cdc13e5bac54cdf9","last_reissued_at":"2026-05-18T02:01:19.650375Z","signature_status":"signed_v1","first_computed_at":"2026-05-18T02:01:19.650375Z","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54"},"source_kind":"arxiv","source_id":"1107.2303","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":"2026-05-18T02:01:19Z","supersedes":[],"prev_event":null,"signature":{"signature_status":"signed_v1","algorithm":"ed25519","key_id":"pith-v1-2026-05","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54","signature_b64":"wkYbZr7dsSXNrjBW5ymIhwj0lYZw76/+3taoDsm/fijRAHqdVbz/gf92+i0XinlpRhtczZi3khHg/cUQ5l5iBA==","signed_message":"open_graph_event_sha256_bytes","signed_at":"2026-06-01T09:34:39.069090Z"},"content_sha256":"28abc50b500c7f5dee7e44779d314ec9de2da820ced51f76d6d03e2229783304","schema_version":"1.0","event_id":"sha256:28abc50b500c7f5dee7e44779d314ec9de2da820ced51f76d6d03e2229783304"},{"event_type":"graph_snapshot","subject_pith_number":"pith:2011:3Q7D2WLVXH563IVYU4WSS2LG6M","target":"graph","payload":{"graph_snapshot":{"paper":{"title":"An updated MILES stellar library and stellar population models","license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","headline":"","cross_cats":[],"primary_cat":"astro-ph.CO","authors_text":"A. J. Cenarro, A. Vazdekis, E. Ricciardelli, J. Falc\\'on-Barroso, J. Gorgas, N. Cardiel, P. S\\'anchez-Bl\\'azquez, R. F. Peletier","submitted_at":"2011-07-12T14:39:19Z","abstract_excerpt":"(Aims) We present a number of improvements to the MILES library and stellar population models. We correct some small errors in the radial velocities of the stars, measure the spectral resolution of the library and models more accurately, and give a better absolute flux calibration of the models. (Methods) We use cross-correlation techniques to correct the radial velocities of the offset stars and the penalised pixel-fitting method, together with different sets of stellar templates, to re-assess the spectral resolution of the MILES stellar library and models. We have also re-calibrated the zero"},"claims":{"count":0,"items":[],"snapshot_sha256":"258153158e38e3291e3d48162225fcdb2d5a3ed65a07baac614ab91432fd4f57"},"source":{"id":"1107.2303","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":""},"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":"2026-05-18T02:01:19Z","supersedes":[],"prev_event":null,"signature":{"signature_status":"signed_v1","algorithm":"ed25519","key_id":"pith-v1-2026-05","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54","signature_b64":"EB8rKUucknCDPRR8xeSwL7P2SDbh2YVOG1Ra9j8+dV2FjVOGqUFk+ihdsMz6WJrc/3LtaHntB6E9eet9szjRDw==","signed_message":"open_graph_event_sha256_bytes","signed_at":"2026-06-01T09:34:39.069453Z"},"content_sha256":"7074e1fa8f42508807d53314e643d0e629e000779f2972ebcc9e6fd9f1dfca89","schema_version":"1.0","event_id":"sha256:7074e1fa8f42508807d53314e643d0e629e000779f2972ebcc9e6fd9f1dfca89"}],"timestamp_proofs":[],"mirror_hints":[{"mirror_type":"https","name":"Pith Resolver","base_url":"https://pith.science","bundle_url":"https://pith.science/pith/3Q7D2WLVXH563IVYU4WSS2LG6M/bundle.json","state_url":"https://pith.science/pith/3Q7D2WLVXH563IVYU4WSS2LG6M/state.json","well_known_bundle_url":"https://pith.science/.well-known/pith/3Q7D2WLVXH563IVYU4WSS2LG6M/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":"2026-06-01T09:34:39Z","links":{"resolver":"https://pith.science/pith/3Q7D2WLVXH563IVYU4WSS2LG6M","bundle":"https://pith.science/pith/3Q7D2WLVXH563IVYU4WSS2LG6M/bundle.json","state":"https://pith.science/pith/3Q7D2WLVXH563IVYU4WSS2LG6M/state.json","well_known_bundle":"https://pith.science/.well-known/pith/3Q7D2WLVXH563IVYU4WSS2LG6M/bundle.json"},"state":{"state_type":"pith_open_graph_state","state_version":"1.0","pith_number":"pith:2011:3Q7D2WLVXH563IVYU4WSS2LG6M","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":"e1d32b8bdb9951ea2da5da142ace698b1eab68861e33c1c7022832f2d77827af","cross_cats_sorted":[],"license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"astro-ph.CO","submitted_at":"2011-07-12T14:39:19Z","title_canon_sha256":"90c8ceba4698967da292d2304e1321448b8318e3d53ffd1b4c5675d16949e20a"},"schema_version":"1.0","source":{"id":"1107.2303","kind":"arxiv","version":1}},"source_aliases":[{"alias_kind":"arxiv","alias_value":"1107.2303","created_at":"2026-05-18T02:01:19Z"},{"alias_kind":"arxiv_version","alias_value":"1107.2303v1","created_at":"2026-05-18T02:01:19Z"},{"alias_kind":"doi","alias_value":"10.48550/arxiv.1107.2303","created_at":"2026-05-18T02:01:19Z"},{"alias_kind":"pith_short_12","alias_value":"3Q7D2WLVXH56","created_at":"2026-05-18T12:26:18Z"},{"alias_kind":"pith_short_16","alias_value":"3Q7D2WLVXH563IVY","created_at":"2026-05-18T12:26:18Z"},{"alias_kind":"pith_short_8","alias_value":"3Q7D2WLV","created_at":"2026-05-18T12:26:18Z"}],"graph_snapshots":[{"event_id":"sha256:7074e1fa8f42508807d53314e643d0e629e000779f2972ebcc9e6fd9f1dfca89","target":"graph","created_at":"2026-05-18T02:01:19Z","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"},"paper":{"abstract_excerpt":"(Aims) We present a number of improvements to the MILES library and stellar population models. We correct some small errors in the radial velocities of the stars, measure the spectral resolution of the library and models more accurately, and give a better absolute flux calibration of the models. (Methods) We use cross-correlation techniques to correct the radial velocities of the offset stars and the penalised pixel-fitting method, together with different sets of stellar templates, to re-assess the spectral resolution of the MILES stellar library and models. We have also re-calibrated the zero","authors_text":"A. J. Cenarro, A. Vazdekis, E. Ricciardelli, J. Falc\\'on-Barroso, J. Gorgas, N. Cardiel, P. S\\'anchez-Bl\\'azquez, R. F. Peletier","cross_cats":[],"headline":"","license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"astro-ph.CO","submitted_at":"2011-07-12T14:39:19Z","title":"An updated MILES stellar library and stellar population models"},"references":{"count":0,"internal_anchors":0,"resolved_work":0,"sample":[],"snapshot_sha256":"258153158e38e3291e3d48162225fcdb2d5a3ed65a07baac614ab91432fd4f57"},"source":{"id":"1107.2303","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":"sha256:28abc50b500c7f5dee7e44779d314ec9de2da820ced51f76d6d03e2229783304","target":"record","created_at":"2026-05-18T02:01:19Z","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":"e1d32b8bdb9951ea2da5da142ace698b1eab68861e33c1c7022832f2d77827af","cross_cats_sorted":[],"license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"astro-ph.CO","submitted_at":"2011-07-12T14:39:19Z","title_canon_sha256":"90c8ceba4698967da292d2304e1321448b8318e3d53ffd1b4c5675d16949e20a"},"schema_version":"1.0","source":{"id":"1107.2303","kind":"arxiv","version":1}},"canonical_sha256":"dc3e3d5975b9fbeda2b8a72d296966f32c51824a0e598e68cdc13e5bac54cdf9","receipt":{"algorithm":"ed25519","builder_version":"pith-number-builder-2026-05-17-v1","canonical_sha256":"dc3e3d5975b9fbeda2b8a72d296966f32c51824a0e598e68cdc13e5bac54cdf9","first_computed_at":"2026-05-18T02:01:19.650375Z","key_id":"pith-v1-2026-05","kind":"pith_receipt","last_reissued_at":"2026-05-18T02:01:19.650375Z","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54","receipt_version":"0.3","signature_b64":"8i/XeBaIKZtTvnArRFUlrrA0J5zam3JGWLWKmjoVGp8M2lY+58Gen91zjW6A+x218gWRded2tTfmNDEPiB6lCg==","signature_status":"signed_v1","signed_at":"2026-05-18T02:01:19.651172Z","signed_message":"canonical_sha256_bytes"},"source_id":"1107.2303","source_kind":"arxiv","source_version":1}}},"equivocations":[],"invalid_events":[],"applied_event_ids":["sha256:28abc50b500c7f5dee7e44779d314ec9de2da820ced51f76d6d03e2229783304","sha256:7074e1fa8f42508807d53314e643d0e629e000779f2972ebcc9e6fd9f1dfca89"],"state_sha256":"1883e3df39162a24a701a5018ab00757e7bd6483ec72b247448482b7209a735e"},"bundle_signature":{"signature_status":"signed_v1","algorithm":"ed25519","key_id":"pith-v1-2026-05","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54","signature_b64":"Z7aMa7XTntwDb27puDzwqAr5gZk4dmYEaHQ/Fm49ex/D9tWtvDAoNMD4LAHFGO9dsUs/G+xNlFtKiLswJNe+Cg==","signed_message":"bundle_sha256_bytes","signed_at":"2026-06-01T09:34:39.071424Z","bundle_sha256":"3b2313812533a9b9495ad6bbe5eceeaa651d812494c2db39db998251df8982d8"}}