{"bundle_type":"pith_open_graph_bundle","bundle_version":"1.0","pith_number":"pith:2014:NX4C6GFOVDQCNOLCU6PWFLNDXR","short_pith_number":"pith:NX4C6GFO","canonical_record":{"source":{"id":"1406.2492","kind":"arxiv","version":1},"metadata":{"license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"astro-ph.IM","submitted_at":"2014-06-10T10:14:20Z","cross_cats_sorted":[],"title_canon_sha256":"a8d811fda2c496e4bb8e5685ea2e16305b0308063a53735638f226d533522c6c","abstract_canon_sha256":"04a8bc9d10d5c614912566785420acd7cbe6234a3161317c8ea2a26d68e45008"},"schema_version":"1.0"},"canonical_sha256":"6df82f18aea8e026b962a79f62ada3bc666c0e64de033de7ec6f6b5362fd1183","source":{"kind":"arxiv","id":"1406.2492","version":1},"source_aliases":[{"alias_kind":"arxiv","alias_value":"1406.2492","created_at":"2026-05-18T01:43:00Z"},{"alias_kind":"arxiv_version","alias_value":"1406.2492v1","created_at":"2026-05-18T01:43:00Z"},{"alias_kind":"doi","alias_value":"10.48550/arxiv.1406.2492","created_at":"2026-05-18T01:43:00Z"},{"alias_kind":"pith_short_12","alias_value":"NX4C6GFOVDQC","created_at":"2026-05-18T12:28:41Z"},{"alias_kind":"pith_short_16","alias_value":"NX4C6GFOVDQCNOLC","created_at":"2026-05-18T12:28:41Z"},{"alias_kind":"pith_short_8","alias_value":"NX4C6GFO","created_at":"2026-05-18T12:28:41Z"}],"events":[{"event_type":"record_created","subject_pith_number":"pith:2014:NX4C6GFOVDQCNOLCU6PWFLNDXR","target":"record","payload":{"canonical_record":{"source":{"id":"1406.2492","kind":"arxiv","version":1},"metadata":{"license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"astro-ph.IM","submitted_at":"2014-06-10T10:14:20Z","cross_cats_sorted":[],"title_canon_sha256":"a8d811fda2c496e4bb8e5685ea2e16305b0308063a53735638f226d533522c6c","abstract_canon_sha256":"04a8bc9d10d5c614912566785420acd7cbe6234a3161317c8ea2a26d68e45008"},"schema_version":"1.0"},"canonical_sha256":"6df82f18aea8e026b962a79f62ada3bc666c0e64de033de7ec6f6b5362fd1183","receipt":{"kind":"pith_receipt","key_id":"pith-v1-2026-05","algorithm":"ed25519","signed_at":"2026-05-18T01:43:00.662047Z","signature_b64":"LxuVxp3qxMCbvtJ7jH00isZL9OyF7+7zwy2121B/okbvFSpafuVAYJWkxZIbUn3Pu3ZeDIVaTcXuCtV7WvByCQ==","signed_message":"canonical_sha256_bytes","builder_version":"pith-number-builder-2026-05-17-v1","receipt_version":"0.3","canonical_sha256":"6df82f18aea8e026b962a79f62ada3bc666c0e64de033de7ec6f6b5362fd1183","last_reissued_at":"2026-05-18T01:43:00.661535Z","signature_status":"signed_v1","first_computed_at":"2026-05-18T01:43:00.661535Z","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54"},"source_kind":"arxiv","source_id":"1406.2492","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":"2026-05-18T01:43:00Z","supersedes":[],"prev_event":null,"signature":{"signature_status":"signed_v1","algorithm":"ed25519","key_id":"pith-v1-2026-05","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54","signature_b64":"e8LwfaQ5yPLx8fX+euaVCkIgHrUFM7gpQ1K2ua0XmHvNRejPsMnxa1H6Yn5YFyJwu0KVM3ZlBJJ44rvgTcuoDg==","signed_message":"open_graph_event_sha256_bytes","signed_at":"2026-05-28T01:22:50.509195Z"},"content_sha256":"3ec1147d0a475f877c89c1c2d596e7f999db522e63597b973738377535b2cc49","schema_version":"1.0","event_id":"sha256:3ec1147d0a475f877c89c1c2d596e7f999db522e63597b973738377535b2cc49"},{"event_type":"graph_snapshot","subject_pith_number":"pith:2014:NX4C6GFOVDQCNOLCU6PWFLNDXR","target":"graph","payload":{"graph_snapshot":{"paper":{"title":"BACHES - a compact \\'echelle spectrograph for radial velocity surveys with small telescopes","license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","headline":"","cross_cats":[],"primary_cat":"astro-ph.IM","authors_text":"K.G. He{\\l}miniak, M. Konacki, M. Ratajczak, P. Sybilski, R.K. Paw{\\l}aszek, S. K. Koz{\\l}owski","submitted_at":"2014-06-10T10:14:20Z","abstract_excerpt":"We evaluate a pre-production BACHES \\'{e}chelle spectrograph in terms of its usefulness for radial velocity surveys of binary stars with small telescopes in a remote and autonomous. We use the Solaris-4 observatory located in Casleo, Argentina, that is part of a global network of autonomous observatories as the test-bed for the instrument. The setup is designed in such a way that spectroscopy and photometry can be carried out using the same telescope without the need to mechanically modify the imaging train. We observe single spectroscopic standard stars as well as binary stars up to 9.75 mag."},"claims":{"count":0,"items":[],"snapshot_sha256":"258153158e38e3291e3d48162225fcdb2d5a3ed65a07baac614ab91432fd4f57"},"source":{"id":"1406.2492","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":"2026-05-18T01:43:00Z","supersedes":[],"prev_event":null,"signature":{"signature_status":"signed_v1","algorithm":"ed25519","key_id":"pith-v1-2026-05","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54","signature_b64":"CYoHT/rMgN1FlxTglFA/8sG46A+2dTErEawIvOS1sLF/e40sGWnC/jaEsAX9MKTHdEdiyoZ+524NNKqpaQGzBA==","signed_message":"open_graph_event_sha256_bytes","signed_at":"2026-05-28T01:22:50.509556Z"},"content_sha256":"efa1cfecfe99999adc909a5c90b6df17d2408c912daf1981d488b0e2f3ba347e","schema_version":"1.0","event_id":"sha256:efa1cfecfe99999adc909a5c90b6df17d2408c912daf1981d488b0e2f3ba347e"}],"timestamp_proofs":[],"mirror_hints":[{"mirror_type":"https","name":"Pith Resolver","base_url":"https://pith.science","bundle_url":"https://pith.science/pith/NX4C6GFOVDQCNOLCU6PWFLNDXR/bundle.json","state_url":"https://pith.science/pith/NX4C6GFOVDQCNOLCU6PWFLNDXR/state.json","well_known_bundle_url":"https://pith.science/.well-known/pith/NX4C6GFOVDQCNOLCU6PWFLNDXR/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":"2026-05-28T01:22:50Z","links":{"resolver":"https://pith.science/pith/NX4C6GFOVDQCNOLCU6PWFLNDXR","bundle":"https://pith.science/pith/NX4C6GFOVDQCNOLCU6PWFLNDXR/bundle.json","state":"https://pith.science/pith/NX4C6GFOVDQCNOLCU6PWFLNDXR/state.json","well_known_bundle":"https://pith.science/.well-known/pith/NX4C6GFOVDQCNOLCU6PWFLNDXR/bundle.json"},"state":{"state_type":"pith_open_graph_state","state_version":"1.0","pith_number":"pith:2014:NX4C6GFOVDQCNOLCU6PWFLNDXR","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":"04a8bc9d10d5c614912566785420acd7cbe6234a3161317c8ea2a26d68e45008","cross_cats_sorted":[],"license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"astro-ph.IM","submitted_at":"2014-06-10T10:14:20Z","title_canon_sha256":"a8d811fda2c496e4bb8e5685ea2e16305b0308063a53735638f226d533522c6c"},"schema_version":"1.0","source":{"id":"1406.2492","kind":"arxiv","version":1}},"source_aliases":[{"alias_kind":"arxiv","alias_value":"1406.2492","created_at":"2026-05-18T01:43:00Z"},{"alias_kind":"arxiv_version","alias_value":"1406.2492v1","created_at":"2026-05-18T01:43:00Z"},{"alias_kind":"doi","alias_value":"10.48550/arxiv.1406.2492","created_at":"2026-05-18T01:43:00Z"},{"alias_kind":"pith_short_12","alias_value":"NX4C6GFOVDQC","created_at":"2026-05-18T12:28:41Z"},{"alias_kind":"pith_short_16","alias_value":"NX4C6GFOVDQCNOLC","created_at":"2026-05-18T12:28:41Z"},{"alias_kind":"pith_short_8","alias_value":"NX4C6GFO","created_at":"2026-05-18T12:28:41Z"}],"graph_snapshots":[{"event_id":"sha256:efa1cfecfe99999adc909a5c90b6df17d2408c912daf1981d488b0e2f3ba347e","target":"graph","created_at":"2026-05-18T01:43:00Z","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":"We evaluate a pre-production BACHES \\'{e}chelle spectrograph in terms of its usefulness for radial velocity surveys of binary stars with small telescopes in a remote and autonomous. We use the Solaris-4 observatory located in Casleo, Argentina, that is part of a global network of autonomous observatories as the test-bed for the instrument. The setup is designed in such a way that spectroscopy and photometry can be carried out using the same telescope without the need to mechanically modify the imaging train. We observe single spectroscopic standard stars as well as binary stars up to 9.75 mag.","authors_text":"K.G. He{\\l}miniak, M. Konacki, M. Ratajczak, P. Sybilski, R.K. Paw{\\l}aszek, S. K. Koz{\\l}owski","cross_cats":[],"headline":"","license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"astro-ph.IM","submitted_at":"2014-06-10T10:14:20Z","title":"BACHES - a compact \\'echelle spectrograph for radial velocity surveys with small telescopes"},"references":{"count":0,"internal_anchors":0,"resolved_work":0,"sample":[],"snapshot_sha256":"258153158e38e3291e3d48162225fcdb2d5a3ed65a07baac614ab91432fd4f57"},"source":{"id":"1406.2492","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":"sha256:3ec1147d0a475f877c89c1c2d596e7f999db522e63597b973738377535b2cc49","target":"record","created_at":"2026-05-18T01:43:00Z","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":"04a8bc9d10d5c614912566785420acd7cbe6234a3161317c8ea2a26d68e45008","cross_cats_sorted":[],"license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"astro-ph.IM","submitted_at":"2014-06-10T10:14:20Z","title_canon_sha256":"a8d811fda2c496e4bb8e5685ea2e16305b0308063a53735638f226d533522c6c"},"schema_version":"1.0","source":{"id":"1406.2492","kind":"arxiv","version":1}},"canonical_sha256":"6df82f18aea8e026b962a79f62ada3bc666c0e64de033de7ec6f6b5362fd1183","receipt":{"algorithm":"ed25519","builder_version":"pith-number-builder-2026-05-17-v1","canonical_sha256":"6df82f18aea8e026b962a79f62ada3bc666c0e64de033de7ec6f6b5362fd1183","first_computed_at":"2026-05-18T01:43:00.661535Z","key_id":"pith-v1-2026-05","kind":"pith_receipt","last_reissued_at":"2026-05-18T01:43:00.661535Z","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54","receipt_version":"0.3","signature_b64":"LxuVxp3qxMCbvtJ7jH00isZL9OyF7+7zwy2121B/okbvFSpafuVAYJWkxZIbUn3Pu3ZeDIVaTcXuCtV7WvByCQ==","signature_status":"signed_v1","signed_at":"2026-05-18T01:43:00.662047Z","signed_message":"canonical_sha256_bytes"},"source_id":"1406.2492","source_kind":"arxiv","source_version":1}}},"equivocations":[],"invalid_events":[],"applied_event_ids":["sha256:3ec1147d0a475f877c89c1c2d596e7f999db522e63597b973738377535b2cc49","sha256:efa1cfecfe99999adc909a5c90b6df17d2408c912daf1981d488b0e2f3ba347e"],"state_sha256":"197bd53979d14fb9777655a8f36bcc049608eb8ca01ff88ea491ba4ed3462261"},"bundle_signature":{"signature_status":"signed_v1","algorithm":"ed25519","key_id":"pith-v1-2026-05","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54","signature_b64":"6xOcxSwY6dCXEta2yc3z83jQ00HOAWmp2uXDpfu7vv7oiE50HUyC0Op3zrCo58C57yFXJJ8PMyNSZ/cmvud8DQ==","signed_message":"bundle_sha256_bytes","signed_at":"2026-05-28T01:22:50.511475Z","bundle_sha256":"268e734dd2334cde6ce608c444f76be4026715cbb7e7fbcbcd47c8baaac12dfb"}}