{"bundle_type":"pith_open_graph_bundle","bundle_version":"1.0","pith_number":"pith:2018:C7HH7BPMYLS4GWLHW7BNSN6TLV","short_pith_number":"pith:C7HH7BPM","canonical_record":{"source":{"id":"1806.09425","kind":"arxiv","version":1},"metadata":{"license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"astro-ph.IM","submitted_at":"2018-06-25T12:57:53Z","cross_cats_sorted":["astro-ph.EP"],"title_canon_sha256":"9d658ccba5e358fb1ec0e0aa7584b36e177dbdb9d26d65fc6e36884a389455da","abstract_canon_sha256":"ab87babfb792eaa4b4a9946448972889baf7d32e7d029b55b8000ce61e6e07f0"},"schema_version":"1.0"},"canonical_sha256":"17ce7f85ecc2e5c35967b7c2d937d35d6741961a7809909d07d3584033244f78","source":{"kind":"arxiv","id":"1806.09425","version":1},"source_aliases":[{"alias_kind":"arxiv","alias_value":"1806.09425","created_at":"2026-05-17T23:59:08Z"},{"alias_kind":"arxiv_version","alias_value":"1806.09425v1","created_at":"2026-05-17T23:59:08Z"},{"alias_kind":"doi","alias_value":"10.48550/arxiv.1806.09425","created_at":"2026-05-17T23:59:08Z"},{"alias_kind":"pith_short_12","alias_value":"C7HH7BPMYLS4","created_at":"2026-05-18T12:32:16Z"},{"alias_kind":"pith_short_16","alias_value":"C7HH7BPMYLS4GWLH","created_at":"2026-05-18T12:32:16Z"},{"alias_kind":"pith_short_8","alias_value":"C7HH7BPM","created_at":"2026-05-18T12:32:16Z"}],"events":[{"event_type":"record_created","subject_pith_number":"pith:2018:C7HH7BPMYLS4GWLHW7BNSN6TLV","target":"record","payload":{"canonical_record":{"source":{"id":"1806.09425","kind":"arxiv","version":1},"metadata":{"license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"astro-ph.IM","submitted_at":"2018-06-25T12:57:53Z","cross_cats_sorted":["astro-ph.EP"],"title_canon_sha256":"9d658ccba5e358fb1ec0e0aa7584b36e177dbdb9d26d65fc6e36884a389455da","abstract_canon_sha256":"ab87babfb792eaa4b4a9946448972889baf7d32e7d029b55b8000ce61e6e07f0"},"schema_version":"1.0"},"canonical_sha256":"17ce7f85ecc2e5c35967b7c2d937d35d6741961a7809909d07d3584033244f78","receipt":{"kind":"pith_receipt","key_id":"pith-v1-2026-05","algorithm":"ed25519","signed_at":"2026-05-17T23:59:08.388090Z","signature_b64":"Qvb+R+WiPAV4y4saueqDrpJkCt/I6A6zjsBr4PmoAqoIaMB+I5s/oWqwZLA/6REiLrOgd9w/oOEl83EDJbwjAg==","signed_message":"canonical_sha256_bytes","builder_version":"pith-number-builder-2026-05-17-v1","receipt_version":"0.3","canonical_sha256":"17ce7f85ecc2e5c35967b7c2d937d35d6741961a7809909d07d3584033244f78","last_reissued_at":"2026-05-17T23:59:08.387412Z","signature_status":"signed_v1","first_computed_at":"2026-05-17T23:59:08.387412Z","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54"},"source_kind":"arxiv","source_id":"1806.09425","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":"2026-05-17T23:59:08Z","supersedes":[],"prev_event":null,"signature":{"signature_status":"signed_v1","algorithm":"ed25519","key_id":"pith-v1-2026-05","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54","signature_b64":"RhKq6R0UhHqSOmGvVjWPIJ0zldPH5Al/CP3vxaUgi2wUCOJTeTLMgSZ3x1eic3i6vj2+C53fqIWZcX4UwEAQBA==","signed_message":"open_graph_event_sha256_bytes","signed_at":"2026-06-04T21:45:50.133226Z"},"content_sha256":"3f66abb7c21b03f874ccab6243e8854831a43723339397b0080c66c8fedcfb10","schema_version":"1.0","event_id":"sha256:3f66abb7c21b03f874ccab6243e8854831a43723339397b0080c66c8fedcfb10"},{"event_type":"graph_snapshot","subject_pith_number":"pith:2018:C7HH7BPMYLS4GWLHW7BNSN6TLV","target":"graph","payload":{"graph_snapshot":{"paper":{"title":"ViSiON: Visibility Service for Observing Nights","license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","headline":"","cross_cats":["astro-ph.EP"],"primary_cat":"astro-ph.IM","authors_text":"Benoit Carry, Jerome Berthier","submitted_at":"2018-06-25T12:57:53Z","abstract_excerpt":"Preparation of detailed night schedule prior to an observing run can be tedious, especially for solar system objects which coordinates are epoch-dependent. We aim at providing the community with a Web service compliant with Virtual Observatory (VO) standards, to create tables of observing conditions, together with airmass and sky charts, for an arbitrary list of targets. We take advantage of available VO services such as the SIMBAD astronomical database, the Aladin sky atlas, and the Miriade ephemerides generator to build a new service dedicated to the planning of observations. The requests fo"},"claims":{"count":0,"items":[],"snapshot_sha256":"258153158e38e3291e3d48162225fcdb2d5a3ed65a07baac614ab91432fd4f57"},"source":{"id":"1806.09425","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":"2026-05-17T23:59:08Z","supersedes":[],"prev_event":null,"signature":{"signature_status":"signed_v1","algorithm":"ed25519","key_id":"pith-v1-2026-05","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54","signature_b64":"cWO0j9NtMZCvShsPzmCsytH1Rn5GGr2T1XcbYEZ9iam6lXA0ZRlIOwtIqyp0LB6hEilE4IJVtOoLrevrWnJtCw==","signed_message":"open_graph_event_sha256_bytes","signed_at":"2026-06-04T21:45:50.133798Z"},"content_sha256":"9d38285e6eda626b38b3c90514de8692f2606741ce2d0afe0f09b35b59193fd5","schema_version":"1.0","event_id":"sha256:9d38285e6eda626b38b3c90514de8692f2606741ce2d0afe0f09b35b59193fd5"}],"timestamp_proofs":[],"mirror_hints":[{"mirror_type":"https","name":"Pith Resolver","base_url":"https://pith.science","bundle_url":"https://pith.science/pith/C7HH7BPMYLS4GWLHW7BNSN6TLV/bundle.json","state_url":"https://pith.science/pith/C7HH7BPMYLS4GWLHW7BNSN6TLV/state.json","well_known_bundle_url":"https://pith.science/.well-known/pith/C7HH7BPMYLS4GWLHW7BNSN6TLV/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":"2026-06-04T21:45:50Z","links":{"resolver":"https://pith.science/pith/C7HH7BPMYLS4GWLHW7BNSN6TLV","bundle":"https://pith.science/pith/C7HH7BPMYLS4GWLHW7BNSN6TLV/bundle.json","state":"https://pith.science/pith/C7HH7BPMYLS4GWLHW7BNSN6TLV/state.json","well_known_bundle":"https://pith.science/.well-known/pith/C7HH7BPMYLS4GWLHW7BNSN6TLV/bundle.json"},"state":{"state_type":"pith_open_graph_state","state_version":"1.0","pith_number":"pith:2018:C7HH7BPMYLS4GWLHW7BNSN6TLV","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":"ab87babfb792eaa4b4a9946448972889baf7d32e7d029b55b8000ce61e6e07f0","cross_cats_sorted":["astro-ph.EP"],"license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"astro-ph.IM","submitted_at":"2018-06-25T12:57:53Z","title_canon_sha256":"9d658ccba5e358fb1ec0e0aa7584b36e177dbdb9d26d65fc6e36884a389455da"},"schema_version":"1.0","source":{"id":"1806.09425","kind":"arxiv","version":1}},"source_aliases":[{"alias_kind":"arxiv","alias_value":"1806.09425","created_at":"2026-05-17T23:59:08Z"},{"alias_kind":"arxiv_version","alias_value":"1806.09425v1","created_at":"2026-05-17T23:59:08Z"},{"alias_kind":"doi","alias_value":"10.48550/arxiv.1806.09425","created_at":"2026-05-17T23:59:08Z"},{"alias_kind":"pith_short_12","alias_value":"C7HH7BPMYLS4","created_at":"2026-05-18T12:32:16Z"},{"alias_kind":"pith_short_16","alias_value":"C7HH7BPMYLS4GWLH","created_at":"2026-05-18T12:32:16Z"},{"alias_kind":"pith_short_8","alias_value":"C7HH7BPM","created_at":"2026-05-18T12:32:16Z"}],"graph_snapshots":[{"event_id":"sha256:9d38285e6eda626b38b3c90514de8692f2606741ce2d0afe0f09b35b59193fd5","target":"graph","created_at":"2026-05-17T23:59:08Z","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":"Preparation of detailed night schedule prior to an observing run can be tedious, especially for solar system objects which coordinates are epoch-dependent. We aim at providing the community with a Web service compliant with Virtual Observatory (VO) standards, to create tables of observing conditions, together with airmass and sky charts, for an arbitrary list of targets. We take advantage of available VO services such as the SIMBAD astronomical database, the Aladin sky atlas, and the Miriade ephemerides generator to build a new service dedicated to the planning of observations. The requests fo","authors_text":"Benoit Carry, Jerome Berthier","cross_cats":["astro-ph.EP"],"headline":"","license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"astro-ph.IM","submitted_at":"2018-06-25T12:57:53Z","title":"ViSiON: Visibility Service for Observing Nights"},"references":{"count":0,"internal_anchors":0,"resolved_work":0,"sample":[],"snapshot_sha256":"258153158e38e3291e3d48162225fcdb2d5a3ed65a07baac614ab91432fd4f57"},"source":{"id":"1806.09425","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":"sha256:3f66abb7c21b03f874ccab6243e8854831a43723339397b0080c66c8fedcfb10","target":"record","created_at":"2026-05-17T23:59:08Z","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":"ab87babfb792eaa4b4a9946448972889baf7d32e7d029b55b8000ce61e6e07f0","cross_cats_sorted":["astro-ph.EP"],"license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"astro-ph.IM","submitted_at":"2018-06-25T12:57:53Z","title_canon_sha256":"9d658ccba5e358fb1ec0e0aa7584b36e177dbdb9d26d65fc6e36884a389455da"},"schema_version":"1.0","source":{"id":"1806.09425","kind":"arxiv","version":1}},"canonical_sha256":"17ce7f85ecc2e5c35967b7c2d937d35d6741961a7809909d07d3584033244f78","receipt":{"algorithm":"ed25519","builder_version":"pith-number-builder-2026-05-17-v1","canonical_sha256":"17ce7f85ecc2e5c35967b7c2d937d35d6741961a7809909d07d3584033244f78","first_computed_at":"2026-05-17T23:59:08.387412Z","key_id":"pith-v1-2026-05","kind":"pith_receipt","last_reissued_at":"2026-05-17T23:59:08.387412Z","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54","receipt_version":"0.3","signature_b64":"Qvb+R+WiPAV4y4saueqDrpJkCt/I6A6zjsBr4PmoAqoIaMB+I5s/oWqwZLA/6REiLrOgd9w/oOEl83EDJbwjAg==","signature_status":"signed_v1","signed_at":"2026-05-17T23:59:08.388090Z","signed_message":"canonical_sha256_bytes"},"source_id":"1806.09425","source_kind":"arxiv","source_version":1}}},"equivocations":[],"invalid_events":[],"applied_event_ids":["sha256:3f66abb7c21b03f874ccab6243e8854831a43723339397b0080c66c8fedcfb10","sha256:9d38285e6eda626b38b3c90514de8692f2606741ce2d0afe0f09b35b59193fd5"],"state_sha256":"902552861e262264be0a6d32541dcf9320ba19deeba206585e6c8a8476f7f2e6"},"bundle_signature":{"signature_status":"signed_v1","algorithm":"ed25519","key_id":"pith-v1-2026-05","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54","signature_b64":"FYFkh9Rvm9zIAAH94NGnrAzglr41hVWSWN9cVEfY7Exx3DvHzS+KWVxOlsdClzQo0UBQcmD9CVyA8qjXSk5ZDQ==","signed_message":"bundle_sha256_bytes","signed_at":"2026-06-04T21:45:50.136852Z","bundle_sha256":"6658b40f1f489931ee2d7f003c175f1a81f97b5eb859af90ce54a20cc0bfb0ce"}}