{"state_type":"pith_open_graph_state","state_version":"1.0","pith_number":"pith:2024:4OUMJKDVMHULAQO6EMHGM6ZWEZ","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":"f0768a4930bde1dfaf4bc98fd283ff49c05a24c7889c76df584b0845fd46f9f6","cross_cats_sorted":[],"license":"http://creativecommons.org/licenses/by-nc-nd/4.0/","primary_cat":"astro-ph.IM","submitted_at":"2024-03-05T14:08:49Z","title_canon_sha256":"5d80c90b0ec025355e77eca6caacd07a8229604a9246b0ffa1b1c769904c2387"},"schema_version":"1.0","source":{"id":"2403.02989","kind":"arxiv","version":1}},"source_aliases":[{"alias_kind":"arxiv","alias_value":"2403.02989","created_at":"2026-07-05T11:14:46Z"},{"alias_kind":"arxiv_version","alias_value":"2403.02989v1","created_at":"2026-07-05T11:14:46Z"},{"alias_kind":"doi","alias_value":"10.48550/arxiv.2403.02989","created_at":"2026-07-05T11:14:46Z"},{"alias_kind":"pith_short_12","alias_value":"4OUMJKDVMHUL","created_at":"2026-07-05T11:14:46Z"},{"alias_kind":"pith_short_16","alias_value":"4OUMJKDVMHULAQO6","created_at":"2026-07-05T11:14:46Z"},{"alias_kind":"pith_short_8","alias_value":"4OUMJKDV","created_at":"2026-07-05T11:14:46Z"}],"graph_snapshots":[{"event_id":"sha256:47de28d08689a5702b55fe175e6f969e473d8d20bb295e62ba4b1c69926dd7fc","target":"graph","created_at":"2026-07-05T11:14:46Z","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/2403.02989/integrity.json","findings":[],"snapshot_sha256":"c28c3603d3b5d939e8dc4c7e95fa8dfce3d595e45f758748cecf8e644a296938","summary":{"advisory":0,"by_detector":{},"critical":0,"informational":0}},"paper":{"abstract_excerpt":"At SRON we have been developing X-ray TES micro-calorimeters as backup technology for the X-ray Integral Field Unit (X-IFU) of the Athena mission, demonstrating excellent resolving powers both under DC and AC bias. We also developed a frequency-domain multiplexing (FDM) readout technology, where each TES is coupled to a superconducting band-pass LC resonator and AC biased at MHz frequencies through a common readout line. The TES signals are summed at the input of a superconducting quantum interference device (SQUID), which performs a first amplification at cryogenic stage. Custom analog front-","authors_text":"D. Vaccaro, E. Taralli, H. Akamatsu, J.R. Gao, J. van der Kuur, J.W.A. den Herder, K. Nagayoshi, K. Ravensberg, L. Gottardi, M. de Wit, M.P. Bruijn","cross_cats":[],"headline":"","license":"http://creativecommons.org/licenses/by-nc-nd/4.0/","primary_cat":"astro-ph.IM","submitted_at":"2024-03-05T14:08:49Z","title":"Developments on frequency domain multiplexing readout for large arrays of transition-edge sensor X-ray micro-calorimeters"},"references":{"count":0,"internal_anchors":0,"resolved_work":0,"sample":[],"snapshot_sha256":"258153158e38e3291e3d48162225fcdb2d5a3ed65a07baac614ab91432fd4f57"},"source":{"id":"2403.02989","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":"sha256:8a4cbcceb6a6a4928cc167c83b869319205db8e4730a56d19ab7d34bff8b5e39","target":"record","created_at":"2026-07-05T11:14:46Z","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":"f0768a4930bde1dfaf4bc98fd283ff49c05a24c7889c76df584b0845fd46f9f6","cross_cats_sorted":[],"license":"http://creativecommons.org/licenses/by-nc-nd/4.0/","primary_cat":"astro-ph.IM","submitted_at":"2024-03-05T14:08:49Z","title_canon_sha256":"5d80c90b0ec025355e77eca6caacd07a8229604a9246b0ffa1b1c769904c2387"},"schema_version":"1.0","source":{"id":"2403.02989","kind":"arxiv","version":1}},"canonical_sha256":"e3a8c4a87561e8b041de230e667b362658737c97cef92aa61d0220dd93cdcbe6","receipt":{"algorithm":"ed25519","builder_version":"pith-number-builder-2026-05-17-v1","canonical_sha256":"e3a8c4a87561e8b041de230e667b362658737c97cef92aa61d0220dd93cdcbe6","first_computed_at":"2026-07-05T11:14:46.871224Z","key_id":"pith-v1-2026-05","kind":"pith_receipt","last_reissued_at":"2026-07-05T11:14:46.871224Z","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54","receipt_version":"0.3","signature_b64":"yGGTavogfEme4OMBcvHet2uFx1epp64/OqvUr0J++1yRL9b7wXYRwBIQHcAqOXJ25bRGKGN4PqbaEOU/pSI/Cg==","signature_status":"signed_v1","signed_at":"2026-07-05T11:14:46.871750Z","signed_message":"canonical_sha256_bytes"},"source_id":"2403.02989","source_kind":"arxiv","source_version":1}}},"equivocations":[],"invalid_events":[],"applied_event_ids":["sha256:8a4cbcceb6a6a4928cc167c83b869319205db8e4730a56d19ab7d34bff8b5e39","sha256:47de28d08689a5702b55fe175e6f969e473d8d20bb295e62ba4b1c69926dd7fc"],"state_sha256":"d97fa55e1506c77e91a7d079d75ffa6fd00e17cbe67799e79371a5c36717a74a"}