{"bundle_type":"pith_open_graph_bundle","bundle_version":"1.0","pith_number":"pith:2015:LS7LBUIIHBOXHGYSOYLSO2XKKR","short_pith_number":"pith:LS7LBUII","canonical_record":{"source":{"id":"1502.01834","kind":"arxiv","version":1},"metadata":{"license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"astro-ph.EP","submitted_at":"2015-02-06T09:40:11Z","cross_cats_sorted":[],"title_canon_sha256":"23966fcfb622e77ee1b8fe0e1748ee7e51d29bae24d8f87a1f8946e561a8cddd","abstract_canon_sha256":"bd111cce470c425c4cd6b27da9ab04f02defab539ff145806da4f844542bb44c"},"schema_version":"1.0"},"canonical_sha256":"5cbeb0d108385d739b127617276aea544579380c56fcc54696bdfe1e654648a5","source":{"kind":"arxiv","id":"1502.01834","version":1},"source_aliases":[{"alias_kind":"arxiv","alias_value":"1502.01834","created_at":"2026-05-18T01:41:04Z"},{"alias_kind":"arxiv_version","alias_value":"1502.01834v1","created_at":"2026-05-18T01:41:04Z"},{"alias_kind":"doi","alias_value":"10.48550/arxiv.1502.01834","created_at":"2026-05-18T01:41:04Z"},{"alias_kind":"pith_short_12","alias_value":"LS7LBUIIHBOX","created_at":"2026-05-18T12:29:29Z"},{"alias_kind":"pith_short_16","alias_value":"LS7LBUIIHBOXHGYS","created_at":"2026-05-18T12:29:29Z"},{"alias_kind":"pith_short_8","alias_value":"LS7LBUII","created_at":"2026-05-18T12:29:29Z"}],"events":[{"event_type":"record_created","subject_pith_number":"pith:2015:LS7LBUIIHBOXHGYSOYLSO2XKKR","target":"record","payload":{"canonical_record":{"source":{"id":"1502.01834","kind":"arxiv","version":1},"metadata":{"license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"astro-ph.EP","submitted_at":"2015-02-06T09:40:11Z","cross_cats_sorted":[],"title_canon_sha256":"23966fcfb622e77ee1b8fe0e1748ee7e51d29bae24d8f87a1f8946e561a8cddd","abstract_canon_sha256":"bd111cce470c425c4cd6b27da9ab04f02defab539ff145806da4f844542bb44c"},"schema_version":"1.0"},"canonical_sha256":"5cbeb0d108385d739b127617276aea544579380c56fcc54696bdfe1e654648a5","receipt":{"kind":"pith_receipt","key_id":"pith-v1-2026-05","algorithm":"ed25519","signed_at":"2026-05-18T01:41:04.495417Z","signature_b64":"rKfb7NkSA7G1N+M0zzNa875CjiUAzqLkgCBP5Sjgsmuabq/OC8S1xO+VCro4rCDS7CoNh8lYCC2yVOUOfwjtAQ==","signed_message":"canonical_sha256_bytes","builder_version":"pith-number-builder-2026-05-17-v1","receipt_version":"0.3","canonical_sha256":"5cbeb0d108385d739b127617276aea544579380c56fcc54696bdfe1e654648a5","last_reissued_at":"2026-05-18T01:41:04.494645Z","signature_status":"signed_v1","first_computed_at":"2026-05-18T01:41:04.494645Z","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54"},"source_kind":"arxiv","source_id":"1502.01834","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":"2026-05-18T01:41:04Z","supersedes":[],"prev_event":null,"signature":{"signature_status":"signed_v1","algorithm":"ed25519","key_id":"pith-v1-2026-05","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54","signature_b64":"fTAL3CvMj+7vgIRfdViTmyT10RENpch3eW4kPXVPQks+YxngT4jPF/X6I55yeBOPq2nXMV1nCX8tSWfn1nLjCg==","signed_message":"open_graph_event_sha256_bytes","signed_at":"2026-05-30T05:38:34.067350Z"},"content_sha256":"77a1e473c5e237e45673269c7903e8f6778ef58a8292e5c33d8ac19df906dcc4","schema_version":"1.0","event_id":"sha256:77a1e473c5e237e45673269c7903e8f6778ef58a8292e5c33d8ac19df906dcc4"},{"event_type":"graph_snapshot","subject_pith_number":"pith:2015:LS7LBUIIHBOXHGYSOYLSO2XKKR","target":"graph","payload":{"graph_snapshot":{"paper":{"title":"Constraining the orbits of sub-stellar companions imaged over short orbital arcs","license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","headline":"","cross_cats":[],"primary_cat":"astro-ph.EP","authors_text":"Grant M. Kennedy, Mark C. Wyatt, Tim D. Pearce","submitted_at":"2015-02-06T09:40:11Z","abstract_excerpt":"Imaging a star's companion at multiple epochs over a short orbital arc provides only four of the six coordinates required for a unique orbital solution. Probability distributions of possible solutions are commonly generated by Monte Carlo (MCMC) analysis, but these are biased by priors and may not probe the full parameter space. We suggest alternative methods to characterise possible orbits, which compliment the MCMC technique. Firstly the allowed ranges of orbital elements are prior-independent, and we provide means to calculate these ranges without numerical analyses. Hence several interesti"},"claims":{"count":0,"items":[],"snapshot_sha256":"258153158e38e3291e3d48162225fcdb2d5a3ed65a07baac614ab91432fd4f57"},"source":{"id":"1502.01834","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":"2026-05-18T01:41:04Z","supersedes":[],"prev_event":null,"signature":{"signature_status":"signed_v1","algorithm":"ed25519","key_id":"pith-v1-2026-05","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54","signature_b64":"W13B/IPl/Mo2iOJ0+FrWE+jwxEj3E5c5uJmqlBIP6ZR4lYQSwF2x1wtsnZKKZro5QpHPWjFeqVk2E2JM3ic0AA==","signed_message":"open_graph_event_sha256_bytes","signed_at":"2026-05-30T05:38:34.068158Z"},"content_sha256":"150eae6ed52e40a658649ac41cbd7011787eace400a8740ed4873dfc00536d52","schema_version":"1.0","event_id":"sha256:150eae6ed52e40a658649ac41cbd7011787eace400a8740ed4873dfc00536d52"}],"timestamp_proofs":[],"mirror_hints":[{"mirror_type":"https","name":"Pith Resolver","base_url":"https://pith.science","bundle_url":"https://pith.science/pith/LS7LBUIIHBOXHGYSOYLSO2XKKR/bundle.json","state_url":"https://pith.science/pith/LS7LBUIIHBOXHGYSOYLSO2XKKR/state.json","well_known_bundle_url":"https://pith.science/.well-known/pith/LS7LBUIIHBOXHGYSOYLSO2XKKR/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":"2026-05-30T05:38:34Z","links":{"resolver":"https://pith.science/pith/LS7LBUIIHBOXHGYSOYLSO2XKKR","bundle":"https://pith.science/pith/LS7LBUIIHBOXHGYSOYLSO2XKKR/bundle.json","state":"https://pith.science/pith/LS7LBUIIHBOXHGYSOYLSO2XKKR/state.json","well_known_bundle":"https://pith.science/.well-known/pith/LS7LBUIIHBOXHGYSOYLSO2XKKR/bundle.json"},"state":{"state_type":"pith_open_graph_state","state_version":"1.0","pith_number":"pith:2015:LS7LBUIIHBOXHGYSOYLSO2XKKR","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":"bd111cce470c425c4cd6b27da9ab04f02defab539ff145806da4f844542bb44c","cross_cats_sorted":[],"license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"astro-ph.EP","submitted_at":"2015-02-06T09:40:11Z","title_canon_sha256":"23966fcfb622e77ee1b8fe0e1748ee7e51d29bae24d8f87a1f8946e561a8cddd"},"schema_version":"1.0","source":{"id":"1502.01834","kind":"arxiv","version":1}},"source_aliases":[{"alias_kind":"arxiv","alias_value":"1502.01834","created_at":"2026-05-18T01:41:04Z"},{"alias_kind":"arxiv_version","alias_value":"1502.01834v1","created_at":"2026-05-18T01:41:04Z"},{"alias_kind":"doi","alias_value":"10.48550/arxiv.1502.01834","created_at":"2026-05-18T01:41:04Z"},{"alias_kind":"pith_short_12","alias_value":"LS7LBUIIHBOX","created_at":"2026-05-18T12:29:29Z"},{"alias_kind":"pith_short_16","alias_value":"LS7LBUIIHBOXHGYS","created_at":"2026-05-18T12:29:29Z"},{"alias_kind":"pith_short_8","alias_value":"LS7LBUII","created_at":"2026-05-18T12:29:29Z"}],"graph_snapshots":[{"event_id":"sha256:150eae6ed52e40a658649ac41cbd7011787eace400a8740ed4873dfc00536d52","target":"graph","created_at":"2026-05-18T01:41:04Z","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":"Imaging a star's companion at multiple epochs over a short orbital arc provides only four of the six coordinates required for a unique orbital solution. Probability distributions of possible solutions are commonly generated by Monte Carlo (MCMC) analysis, but these are biased by priors and may not probe the full parameter space. We suggest alternative methods to characterise possible orbits, which compliment the MCMC technique. Firstly the allowed ranges of orbital elements are prior-independent, and we provide means to calculate these ranges without numerical analyses. Hence several interesti","authors_text":"Grant M. Kennedy, Mark C. Wyatt, Tim D. Pearce","cross_cats":[],"headline":"","license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"astro-ph.EP","submitted_at":"2015-02-06T09:40:11Z","title":"Constraining the orbits of sub-stellar companions imaged over short orbital arcs"},"references":{"count":0,"internal_anchors":0,"resolved_work":0,"sample":[],"snapshot_sha256":"258153158e38e3291e3d48162225fcdb2d5a3ed65a07baac614ab91432fd4f57"},"source":{"id":"1502.01834","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":"sha256:77a1e473c5e237e45673269c7903e8f6778ef58a8292e5c33d8ac19df906dcc4","target":"record","created_at":"2026-05-18T01:41:04Z","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":"bd111cce470c425c4cd6b27da9ab04f02defab539ff145806da4f844542bb44c","cross_cats_sorted":[],"license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"astro-ph.EP","submitted_at":"2015-02-06T09:40:11Z","title_canon_sha256":"23966fcfb622e77ee1b8fe0e1748ee7e51d29bae24d8f87a1f8946e561a8cddd"},"schema_version":"1.0","source":{"id":"1502.01834","kind":"arxiv","version":1}},"canonical_sha256":"5cbeb0d108385d739b127617276aea544579380c56fcc54696bdfe1e654648a5","receipt":{"algorithm":"ed25519","builder_version":"pith-number-builder-2026-05-17-v1","canonical_sha256":"5cbeb0d108385d739b127617276aea544579380c56fcc54696bdfe1e654648a5","first_computed_at":"2026-05-18T01:41:04.494645Z","key_id":"pith-v1-2026-05","kind":"pith_receipt","last_reissued_at":"2026-05-18T01:41:04.494645Z","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54","receipt_version":"0.3","signature_b64":"rKfb7NkSA7G1N+M0zzNa875CjiUAzqLkgCBP5Sjgsmuabq/OC8S1xO+VCro4rCDS7CoNh8lYCC2yVOUOfwjtAQ==","signature_status":"signed_v1","signed_at":"2026-05-18T01:41:04.495417Z","signed_message":"canonical_sha256_bytes"},"source_id":"1502.01834","source_kind":"arxiv","source_version":1}}},"equivocations":[],"invalid_events":[],"applied_event_ids":["sha256:77a1e473c5e237e45673269c7903e8f6778ef58a8292e5c33d8ac19df906dcc4","sha256:150eae6ed52e40a658649ac41cbd7011787eace400a8740ed4873dfc00536d52"],"state_sha256":"942a66b424005c68e028903774e0cbafcd70f5b793a32c74a5ce15f08087057c"},"bundle_signature":{"signature_status":"signed_v1","algorithm":"ed25519","key_id":"pith-v1-2026-05","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54","signature_b64":"1S2uWg9lbsDA0RWCBaA3aWF6BjHAhMRyIoh45vdfhYwJ/rB/1qmxS/XWI7cbIvqqqzX4hzHL2cyRlT3uoKAfAQ==","signed_message":"bundle_sha256_bytes","signed_at":"2026-05-30T05:38:34.072826Z","bundle_sha256":"3bc32f1bb65c8394a585f89cf11367ac5357575b13d095060486c2578fd24285"}}