{"bundle_type":"pith_open_graph_bundle","bundle_version":"1.0","pith_number":"pith:2011:GEQC4A6YDEN57DSSTYCZUBOPGN","short_pith_number":"pith:GEQC4A6Y","canonical_record":{"source":{"id":"1110.6181","kind":"arxiv","version":3},"metadata":{"license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"astro-ph.EP","submitted_at":"2011-10-27T20:00:20Z","cross_cats_sorted":[],"title_canon_sha256":"f62f1747ceb45ffeb2705d708c332b7942382cf2161a50361f42facdec05115d","abstract_canon_sha256":"8802a953048646567ab1fb4b96857183229231046e120bd52601de1049168dce"},"schema_version":"1.0"},"canonical_sha256":"31202e03d8191bdf8e529e059a05cf3341f1571e1f8d555d6b07ef33444ec1f2","source":{"kind":"arxiv","id":"1110.6181","version":3},"source_aliases":[{"alias_kind":"arxiv","alias_value":"1110.6181","created_at":"2026-05-18T01:59:50Z"},{"alias_kind":"arxiv_version","alias_value":"1110.6181v3","created_at":"2026-05-18T01:59:50Z"},{"alias_kind":"doi","alias_value":"10.48550/arxiv.1110.6181","created_at":"2026-05-18T01:59:50Z"},{"alias_kind":"pith_short_12","alias_value":"GEQC4A6YDEN5","created_at":"2026-05-18T12:26:28Z"},{"alias_kind":"pith_short_16","alias_value":"GEQC4A6YDEN57DSS","created_at":"2026-05-18T12:26:28Z"},{"alias_kind":"pith_short_8","alias_value":"GEQC4A6Y","created_at":"2026-05-18T12:26:28Z"}],"events":[{"event_type":"record_created","subject_pith_number":"pith:2011:GEQC4A6YDEN57DSSTYCZUBOPGN","target":"record","payload":{"canonical_record":{"source":{"id":"1110.6181","kind":"arxiv","version":3},"metadata":{"license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"astro-ph.EP","submitted_at":"2011-10-27T20:00:20Z","cross_cats_sorted":[],"title_canon_sha256":"f62f1747ceb45ffeb2705d708c332b7942382cf2161a50361f42facdec05115d","abstract_canon_sha256":"8802a953048646567ab1fb4b96857183229231046e120bd52601de1049168dce"},"schema_version":"1.0"},"canonical_sha256":"31202e03d8191bdf8e529e059a05cf3341f1571e1f8d555d6b07ef33444ec1f2","receipt":{"kind":"pith_receipt","key_id":"pith-v1-2026-05","algorithm":"ed25519","signed_at":"2026-05-18T01:59:50.882222Z","signature_b64":"84okiWOQ+bEW2/9SY7rh0OCyF4cU8VkPoTayha8eaQeFtBG0pGNckJb01D4IBMNDoYgwdrm9GK98btq5r8/9BQ==","signed_message":"canonical_sha256_bytes","builder_version":"pith-number-builder-2026-05-17-v1","receipt_version":"0.3","canonical_sha256":"31202e03d8191bdf8e529e059a05cf3341f1571e1f8d555d6b07ef33444ec1f2","last_reissued_at":"2026-05-18T01:59:50.881773Z","signature_status":"signed_v1","first_computed_at":"2026-05-18T01:59:50.881773Z","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54"},"source_kind":"arxiv","source_id":"1110.6181","source_version":3,"attestation_state":"computed"},"signer":{"signer_id":"pith.science","signer_type":"pith_registry","key_id":"pith-v1-2026-05","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54"},"created_at":"2026-05-18T01:59:50Z","supersedes":[],"prev_event":null,"signature":{"signature_status":"signed_v1","algorithm":"ed25519","key_id":"pith-v1-2026-05","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54","signature_b64":"EmaojOgsTOh2gNAZKB7bTHPlWL/C4GYcHiQNeVUGmTVrOA/kGpgALp3ZdWrf2Lxa7EX+Uy5DiPUCbn1F1jvOAQ==","signed_message":"open_graph_event_sha256_bytes","signed_at":"2026-05-26T09:45:27.922754Z"},"content_sha256":"161cd7b5251500d6875e1c4cb230d6fdc17637e04de143b93ffdbcce3c0a11e0","schema_version":"1.0","event_id":"sha256:161cd7b5251500d6875e1c4cb230d6fdc17637e04de143b93ffdbcce3c0a11e0"},{"event_type":"graph_snapshot","subject_pith_number":"pith:2011:GEQC4A6YDEN57DSSTYCZUBOPGN","target":"graph","payload":{"graph_snapshot":{"paper":{"title":"Detection Technique for Artificially-Illuminated Objects in the Outer Solar System and Beyond","license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","headline":"","cross_cats":[],"primary_cat":"astro-ph.EP","authors_text":"Abraham Loeb (Harvard), Edwin L. Turner (Princeton)","submitted_at":"2011-10-27T20:00:20Z","abstract_excerpt":"Existing and planned optical telescopes and surveys can detect artificially-illuminated objects comparable in total brightness to a major terrestrial city out to the outskirts of the Solar System. Orbital parameters of Kuiper belt objects (KBOs) are routinely measured to exquisite precisions of <10^{-3}. Here we propose to measure the variation of the observed flux F from such objects as a function of their changing orbital distances D. Sunlight-illuminated objects will show a logarithmic slope alpha=(dlogF/dlog D)=-4 whereas artificially-illuminated objects should exhibit alpha=-2. Planned su"},"claims":{"count":0,"items":[],"snapshot_sha256":"258153158e38e3291e3d48162225fcdb2d5a3ed65a07baac614ab91432fd4f57"},"source":{"id":"1110.6181","kind":"arxiv","version":3},"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":"2026-05-18T01:59:50Z","supersedes":[],"prev_event":null,"signature":{"signature_status":"signed_v1","algorithm":"ed25519","key_id":"pith-v1-2026-05","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54","signature_b64":"2iAxtRruTYah3KPpd1ZLgZIg+75mAoGPj3ka89kj99g8N/EC6Dz8LRJLFnxL1gXuXuSypUNKhIMgx1PQz8YeBA==","signed_message":"open_graph_event_sha256_bytes","signed_at":"2026-05-26T09:45:27.923424Z"},"content_sha256":"71d21eb02fdbe50773ec3abd1d5289821cb596e908e57d78db002f55dae4fc2b","schema_version":"1.0","event_id":"sha256:71d21eb02fdbe50773ec3abd1d5289821cb596e908e57d78db002f55dae4fc2b"}],"timestamp_proofs":[],"mirror_hints":[{"mirror_type":"https","name":"Pith Resolver","base_url":"https://pith.science","bundle_url":"https://pith.science/pith/GEQC4A6YDEN57DSSTYCZUBOPGN/bundle.json","state_url":"https://pith.science/pith/GEQC4A6YDEN57DSSTYCZUBOPGN/state.json","well_known_bundle_url":"https://pith.science/.well-known/pith/GEQC4A6YDEN57DSSTYCZUBOPGN/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":"2026-05-26T09:45:27Z","links":{"resolver":"https://pith.science/pith/GEQC4A6YDEN57DSSTYCZUBOPGN","bundle":"https://pith.science/pith/GEQC4A6YDEN57DSSTYCZUBOPGN/bundle.json","state":"https://pith.science/pith/GEQC4A6YDEN57DSSTYCZUBOPGN/state.json","well_known_bundle":"https://pith.science/.well-known/pith/GEQC4A6YDEN57DSSTYCZUBOPGN/bundle.json"},"state":{"state_type":"pith_open_graph_state","state_version":"1.0","pith_number":"pith:2011:GEQC4A6YDEN57DSSTYCZUBOPGN","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":"8802a953048646567ab1fb4b96857183229231046e120bd52601de1049168dce","cross_cats_sorted":[],"license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"astro-ph.EP","submitted_at":"2011-10-27T20:00:20Z","title_canon_sha256":"f62f1747ceb45ffeb2705d708c332b7942382cf2161a50361f42facdec05115d"},"schema_version":"1.0","source":{"id":"1110.6181","kind":"arxiv","version":3}},"source_aliases":[{"alias_kind":"arxiv","alias_value":"1110.6181","created_at":"2026-05-18T01:59:50Z"},{"alias_kind":"arxiv_version","alias_value":"1110.6181v3","created_at":"2026-05-18T01:59:50Z"},{"alias_kind":"doi","alias_value":"10.48550/arxiv.1110.6181","created_at":"2026-05-18T01:59:50Z"},{"alias_kind":"pith_short_12","alias_value":"GEQC4A6YDEN5","created_at":"2026-05-18T12:26:28Z"},{"alias_kind":"pith_short_16","alias_value":"GEQC4A6YDEN57DSS","created_at":"2026-05-18T12:26:28Z"},{"alias_kind":"pith_short_8","alias_value":"GEQC4A6Y","created_at":"2026-05-18T12:26:28Z"}],"graph_snapshots":[{"event_id":"sha256:71d21eb02fdbe50773ec3abd1d5289821cb596e908e57d78db002f55dae4fc2b","target":"graph","created_at":"2026-05-18T01:59:50Z","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":"Existing and planned optical telescopes and surveys can detect artificially-illuminated objects comparable in total brightness to a major terrestrial city out to the outskirts of the Solar System. Orbital parameters of Kuiper belt objects (KBOs) are routinely measured to exquisite precisions of <10^{-3}. Here we propose to measure the variation of the observed flux F from such objects as a function of their changing orbital distances D. Sunlight-illuminated objects will show a logarithmic slope alpha=(dlogF/dlog D)=-4 whereas artificially-illuminated objects should exhibit alpha=-2. Planned su","authors_text":"Abraham Loeb (Harvard), Edwin L. Turner (Princeton)","cross_cats":[],"headline":"","license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"astro-ph.EP","submitted_at":"2011-10-27T20:00:20Z","title":"Detection Technique for Artificially-Illuminated Objects in the Outer Solar System and Beyond"},"references":{"count":0,"internal_anchors":0,"resolved_work":0,"sample":[],"snapshot_sha256":"258153158e38e3291e3d48162225fcdb2d5a3ed65a07baac614ab91432fd4f57"},"source":{"id":"1110.6181","kind":"arxiv","version":3},"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":"sha256:161cd7b5251500d6875e1c4cb230d6fdc17637e04de143b93ffdbcce3c0a11e0","target":"record","created_at":"2026-05-18T01:59:50Z","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":"8802a953048646567ab1fb4b96857183229231046e120bd52601de1049168dce","cross_cats_sorted":[],"license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"astro-ph.EP","submitted_at":"2011-10-27T20:00:20Z","title_canon_sha256":"f62f1747ceb45ffeb2705d708c332b7942382cf2161a50361f42facdec05115d"},"schema_version":"1.0","source":{"id":"1110.6181","kind":"arxiv","version":3}},"canonical_sha256":"31202e03d8191bdf8e529e059a05cf3341f1571e1f8d555d6b07ef33444ec1f2","receipt":{"algorithm":"ed25519","builder_version":"pith-number-builder-2026-05-17-v1","canonical_sha256":"31202e03d8191bdf8e529e059a05cf3341f1571e1f8d555d6b07ef33444ec1f2","first_computed_at":"2026-05-18T01:59:50.881773Z","key_id":"pith-v1-2026-05","kind":"pith_receipt","last_reissued_at":"2026-05-18T01:59:50.881773Z","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54","receipt_version":"0.3","signature_b64":"84okiWOQ+bEW2/9SY7rh0OCyF4cU8VkPoTayha8eaQeFtBG0pGNckJb01D4IBMNDoYgwdrm9GK98btq5r8/9BQ==","signature_status":"signed_v1","signed_at":"2026-05-18T01:59:50.882222Z","signed_message":"canonical_sha256_bytes"},"source_id":"1110.6181","source_kind":"arxiv","source_version":3}}},"equivocations":[],"invalid_events":[],"applied_event_ids":["sha256:161cd7b5251500d6875e1c4cb230d6fdc17637e04de143b93ffdbcce3c0a11e0","sha256:71d21eb02fdbe50773ec3abd1d5289821cb596e908e57d78db002f55dae4fc2b"],"state_sha256":"1c76a4a603da8d6c014e80f69718d8a596d9dfa851e616bb592c0be33731c4d0"},"bundle_signature":{"signature_status":"signed_v1","algorithm":"ed25519","key_id":"pith-v1-2026-05","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54","signature_b64":"Pr1iFPnFJQz3PFyyxYJMjnPdk02ewykMG7gzUX21ENWmaL18C1tbmZh2ksD1ynmaaS9RmTJTSLgBXk1F+hI/DA==","signed_message":"bundle_sha256_bytes","signed_at":"2026-05-26T09:45:27.927108Z","bundle_sha256":"db4ce2ee0404b4b69c67832eb31ef340cb348fb0cb9faa18f3bb01e2d96f10a8"}}