{"bundle_type":"pith_open_graph_bundle","bundle_version":"1.0","pith_number":"pith:2009:56EKIP7CWXXPRH2RJD4U3PLRWH","short_pith_number":"pith:56EKIP7C","canonical_record":{"source":{"id":"0909.4407","kind":"arxiv","version":1},"metadata":{"license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"astro-ph.IM","submitted_at":"2009-09-24T10:44:56Z","cross_cats_sorted":["astro-ph.SR"],"title_canon_sha256":"a8fae3eaf9fef475bf9de6cb9e690daaea88b2cfa79d752408046a51439ce90f","abstract_canon_sha256":"80ca8c46b4975dab197f406065109407048e1caee7502570c95f41239a5bf72d"},"schema_version":"1.0"},"canonical_sha256":"ef88a43fe2b5eef89f5148f94dbd71b1e7e43acfe62029279602b41b76c72fe2","source":{"kind":"arxiv","id":"0909.4407","version":1},"source_aliases":[{"alias_kind":"arxiv","alias_value":"0909.4407","created_at":"2026-05-18T02:11:38Z"},{"alias_kind":"arxiv_version","alias_value":"0909.4407v1","created_at":"2026-05-18T02:11:38Z"},{"alias_kind":"doi","alias_value":"10.48550/arxiv.0909.4407","created_at":"2026-05-18T02:11:38Z"},{"alias_kind":"pith_short_12","alias_value":"56EKIP7CWXXP","created_at":"2026-05-18T12:25:58Z"},{"alias_kind":"pith_short_16","alias_value":"56EKIP7CWXXPRH2R","created_at":"2026-05-18T12:25:58Z"},{"alias_kind":"pith_short_8","alias_value":"56EKIP7C","created_at":"2026-05-18T12:25:58Z"}],"events":[{"event_type":"record_created","subject_pith_number":"pith:2009:56EKIP7CWXXPRH2RJD4U3PLRWH","target":"record","payload":{"canonical_record":{"source":{"id":"0909.4407","kind":"arxiv","version":1},"metadata":{"license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"astro-ph.IM","submitted_at":"2009-09-24T10:44:56Z","cross_cats_sorted":["astro-ph.SR"],"title_canon_sha256":"a8fae3eaf9fef475bf9de6cb9e690daaea88b2cfa79d752408046a51439ce90f","abstract_canon_sha256":"80ca8c46b4975dab197f406065109407048e1caee7502570c95f41239a5bf72d"},"schema_version":"1.0"},"canonical_sha256":"ef88a43fe2b5eef89f5148f94dbd71b1e7e43acfe62029279602b41b76c72fe2","receipt":{"kind":"pith_receipt","key_id":"pith-v1-2026-05","algorithm":"ed25519","signed_at":"2026-05-18T02:11:38.094799Z","signature_b64":"53nBmDaKob9cDnAGVT/cpikH6A2l7yR1fGApq+qH5rKo+2Xk8mqfm6kygcN7gk+suUoMb0h3k1OgkG6/SdqfAQ==","signed_message":"canonical_sha256_bytes","builder_version":"pith-number-builder-2026-05-17-v1","receipt_version":"0.3","canonical_sha256":"ef88a43fe2b5eef89f5148f94dbd71b1e7e43acfe62029279602b41b76c72fe2","last_reissued_at":"2026-05-18T02:11:38.094137Z","signature_status":"signed_v1","first_computed_at":"2026-05-18T02:11:38.094137Z","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54"},"source_kind":"arxiv","source_id":"0909.4407","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":"2026-05-18T02:11:38Z","supersedes":[],"prev_event":null,"signature":{"signature_status":"signed_v1","algorithm":"ed25519","key_id":"pith-v1-2026-05","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54","signature_b64":"Dg3ylO7Av7FrNofY1CYmhfEHlEpqTuAVh2ddbkmk0GSxzHQ8q/6ZXDCUH5U5SwW9uRRmGpUT2Oop+7tx+ndLBA==","signed_message":"open_graph_event_sha256_bytes","signed_at":"2026-06-03T19:55:13.075854Z"},"content_sha256":"61c5fd0e3e5260a5056008ff250d166eaf6e0efa0a3050f06526e0f683724d2e","schema_version":"1.0","event_id":"sha256:61c5fd0e3e5260a5056008ff250d166eaf6e0efa0a3050f06526e0f683724d2e"},{"event_type":"graph_snapshot","subject_pith_number":"pith:2009:56EKIP7CWXXPRH2RJD4U3PLRWH","target":"graph","payload":{"graph_snapshot":{"paper":{"title":"Development of the opto-mechanical design for ICE-T","license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","headline":"","cross_cats":["astro-ph.SR"],"primary_cat":"astro-ph.IM","authors_text":"I. Di Varano, K. G. Strassmeier, M. Woche, T. Granzer","submitted_at":"2009-09-24T10:44:56Z","abstract_excerpt":"ICE-T (International Concordia Explorer Telescope) is a double 60 cm f/1.1 photometric robotic telescope, on a parallactic mount, which will operate at Dome C, in the long Antarctic night, aiming to investigate exoplanets and activity of the hosting stars. Antarctic Plateau site is well known to be one of the best in the world for observations because of sky transparency in all wavelengths and low scintillation noise. Due to the extremely harsh environmental conditions (the lowest average temperature is -80$^\\circ$C) the criteria adopted for an optimal design are really challenging. Here we pr"},"claims":{"count":0,"items":[],"snapshot_sha256":"258153158e38e3291e3d48162225fcdb2d5a3ed65a07baac614ab91432fd4f57"},"source":{"id":"0909.4407","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":"2026-05-18T02:11:38Z","supersedes":[],"prev_event":null,"signature":{"signature_status":"signed_v1","algorithm":"ed25519","key_id":"pith-v1-2026-05","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54","signature_b64":"+E3v6Wcbf9T2YoLPwarW8LDNMWvZdT2adOsmSpqMWl+AfAvINTVmF6JK6l+jCdVWstkV2WzbadALpVaDTpzKDA==","signed_message":"open_graph_event_sha256_bytes","signed_at":"2026-06-03T19:55:13.076196Z"},"content_sha256":"620004f03148538b18ad2d645675e9784bc90d2c3bfa91c3e8a423c4819559b6","schema_version":"1.0","event_id":"sha256:620004f03148538b18ad2d645675e9784bc90d2c3bfa91c3e8a423c4819559b6"}],"timestamp_proofs":[],"mirror_hints":[{"mirror_type":"https","name":"Pith Resolver","base_url":"https://pith.science","bundle_url":"https://pith.science/pith/56EKIP7CWXXPRH2RJD4U3PLRWH/bundle.json","state_url":"https://pith.science/pith/56EKIP7CWXXPRH2RJD4U3PLRWH/state.json","well_known_bundle_url":"https://pith.science/.well-known/pith/56EKIP7CWXXPRH2RJD4U3PLRWH/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":"2026-06-03T19:55:13Z","links":{"resolver":"https://pith.science/pith/56EKIP7CWXXPRH2RJD4U3PLRWH","bundle":"https://pith.science/pith/56EKIP7CWXXPRH2RJD4U3PLRWH/bundle.json","state":"https://pith.science/pith/56EKIP7CWXXPRH2RJD4U3PLRWH/state.json","well_known_bundle":"https://pith.science/.well-known/pith/56EKIP7CWXXPRH2RJD4U3PLRWH/bundle.json"},"state":{"state_type":"pith_open_graph_state","state_version":"1.0","pith_number":"pith:2009:56EKIP7CWXXPRH2RJD4U3PLRWH","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":"80ca8c46b4975dab197f406065109407048e1caee7502570c95f41239a5bf72d","cross_cats_sorted":["astro-ph.SR"],"license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"astro-ph.IM","submitted_at":"2009-09-24T10:44:56Z","title_canon_sha256":"a8fae3eaf9fef475bf9de6cb9e690daaea88b2cfa79d752408046a51439ce90f"},"schema_version":"1.0","source":{"id":"0909.4407","kind":"arxiv","version":1}},"source_aliases":[{"alias_kind":"arxiv","alias_value":"0909.4407","created_at":"2026-05-18T02:11:38Z"},{"alias_kind":"arxiv_version","alias_value":"0909.4407v1","created_at":"2026-05-18T02:11:38Z"},{"alias_kind":"doi","alias_value":"10.48550/arxiv.0909.4407","created_at":"2026-05-18T02:11:38Z"},{"alias_kind":"pith_short_12","alias_value":"56EKIP7CWXXP","created_at":"2026-05-18T12:25:58Z"},{"alias_kind":"pith_short_16","alias_value":"56EKIP7CWXXPRH2R","created_at":"2026-05-18T12:25:58Z"},{"alias_kind":"pith_short_8","alias_value":"56EKIP7C","created_at":"2026-05-18T12:25:58Z"}],"graph_snapshots":[{"event_id":"sha256:620004f03148538b18ad2d645675e9784bc90d2c3bfa91c3e8a423c4819559b6","target":"graph","created_at":"2026-05-18T02:11:38Z","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":"ICE-T (International Concordia Explorer Telescope) is a double 60 cm f/1.1 photometric robotic telescope, on a parallactic mount, which will operate at Dome C, in the long Antarctic night, aiming to investigate exoplanets and activity of the hosting stars. Antarctic Plateau site is well known to be one of the best in the world for observations because of sky transparency in all wavelengths and low scintillation noise. Due to the extremely harsh environmental conditions (the lowest average temperature is -80$^\\circ$C) the criteria adopted for an optimal design are really challenging. Here we pr","authors_text":"I. Di Varano, K. G. Strassmeier, M. Woche, T. Granzer","cross_cats":["astro-ph.SR"],"headline":"","license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"astro-ph.IM","submitted_at":"2009-09-24T10:44:56Z","title":"Development of the opto-mechanical design for ICE-T"},"references":{"count":0,"internal_anchors":0,"resolved_work":0,"sample":[],"snapshot_sha256":"258153158e38e3291e3d48162225fcdb2d5a3ed65a07baac614ab91432fd4f57"},"source":{"id":"0909.4407","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":"sha256:61c5fd0e3e5260a5056008ff250d166eaf6e0efa0a3050f06526e0f683724d2e","target":"record","created_at":"2026-05-18T02:11:38Z","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":"80ca8c46b4975dab197f406065109407048e1caee7502570c95f41239a5bf72d","cross_cats_sorted":["astro-ph.SR"],"license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"astro-ph.IM","submitted_at":"2009-09-24T10:44:56Z","title_canon_sha256":"a8fae3eaf9fef475bf9de6cb9e690daaea88b2cfa79d752408046a51439ce90f"},"schema_version":"1.0","source":{"id":"0909.4407","kind":"arxiv","version":1}},"canonical_sha256":"ef88a43fe2b5eef89f5148f94dbd71b1e7e43acfe62029279602b41b76c72fe2","receipt":{"algorithm":"ed25519","builder_version":"pith-number-builder-2026-05-17-v1","canonical_sha256":"ef88a43fe2b5eef89f5148f94dbd71b1e7e43acfe62029279602b41b76c72fe2","first_computed_at":"2026-05-18T02:11:38.094137Z","key_id":"pith-v1-2026-05","kind":"pith_receipt","last_reissued_at":"2026-05-18T02:11:38.094137Z","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54","receipt_version":"0.3","signature_b64":"53nBmDaKob9cDnAGVT/cpikH6A2l7yR1fGApq+qH5rKo+2Xk8mqfm6kygcN7gk+suUoMb0h3k1OgkG6/SdqfAQ==","signature_status":"signed_v1","signed_at":"2026-05-18T02:11:38.094799Z","signed_message":"canonical_sha256_bytes"},"source_id":"0909.4407","source_kind":"arxiv","source_version":1}}},"equivocations":[],"invalid_events":[],"applied_event_ids":["sha256:61c5fd0e3e5260a5056008ff250d166eaf6e0efa0a3050f06526e0f683724d2e","sha256:620004f03148538b18ad2d645675e9784bc90d2c3bfa91c3e8a423c4819559b6"],"state_sha256":"6034569847d70c48e8b4d424f13d842c11ec05ce5cac8bbc096afaf8e90c9cf4"},"bundle_signature":{"signature_status":"signed_v1","algorithm":"ed25519","key_id":"pith-v1-2026-05","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54","signature_b64":"058Jqf3Mlg4wcwRRl/g9eKVrM89aNI93QsUuy9Q85tIMZj5N08qdOUXkPwGGP5rmKEHKr8zxVWt8RayJpOH9Bw==","signed_message":"bundle_sha256_bytes","signed_at":"2026-06-03T19:55:13.078159Z","bundle_sha256":"b5e6f233f254c9a6df499155275057bbc6d9e35bf4c302015edd48f2ad95924e"}}