{"bundle_type":"pith_open_graph_bundle","bundle_version":"1.0","pith_number":"pith:2010:CJLPFDEXUOOEJZUTXJFPRHL7DG","short_pith_number":"pith:CJLPFDEX","canonical_record":{"source":{"id":"1009.4192","kind":"arxiv","version":3},"metadata":{"license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"astro-ph.CO","submitted_at":"2010-09-21T20:00:03Z","cross_cats_sorted":["gr-qc"],"title_canon_sha256":"1047786b99b324754b1b103991bc7bad5ddf6737a52318bbe715222027be5155","abstract_canon_sha256":"65ed6a4e15887ae60f71aab5c25ca23ebe3547143d09f57d1c402a89981b97fb"},"schema_version":"1.0"},"canonical_sha256":"1256f28c97a39c44e693ba4af89d7f19867c12732d2ee9c1664d75e84027f64d","source":{"kind":"arxiv","id":"1009.4192","version":3},"source_aliases":[{"alias_kind":"arxiv","alias_value":"1009.4192","created_at":"2026-05-18T03:39:53Z"},{"alias_kind":"arxiv_version","alias_value":"1009.4192v3","created_at":"2026-05-18T03:39:53Z"},{"alias_kind":"doi","alias_value":"10.48550/arxiv.1009.4192","created_at":"2026-05-18T03:39:53Z"},{"alias_kind":"pith_short_12","alias_value":"CJLPFDEXUOOE","created_at":"2026-05-18T12:26:06Z"},{"alias_kind":"pith_short_16","alias_value":"CJLPFDEXUOOEJZUT","created_at":"2026-05-18T12:26:06Z"},{"alias_kind":"pith_short_8","alias_value":"CJLPFDEX","created_at":"2026-05-18T12:26:06Z"}],"events":[{"event_type":"record_created","subject_pith_number":"pith:2010:CJLPFDEXUOOEJZUTXJFPRHL7DG","target":"record","payload":{"canonical_record":{"source":{"id":"1009.4192","kind":"arxiv","version":3},"metadata":{"license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"astro-ph.CO","submitted_at":"2010-09-21T20:00:03Z","cross_cats_sorted":["gr-qc"],"title_canon_sha256":"1047786b99b324754b1b103991bc7bad5ddf6737a52318bbe715222027be5155","abstract_canon_sha256":"65ed6a4e15887ae60f71aab5c25ca23ebe3547143d09f57d1c402a89981b97fb"},"schema_version":"1.0"},"canonical_sha256":"1256f28c97a39c44e693ba4af89d7f19867c12732d2ee9c1664d75e84027f64d","receipt":{"kind":"pith_receipt","key_id":"pith-v1-2026-05","algorithm":"ed25519","signed_at":"2026-05-18T03:39:53.327493Z","signature_b64":"U3QLgfnGDg9L8ICls/rS0cFuuDGWBAR0hEUVE8JQJR1ZPsOxR3mC2wesC7UTVaNEApV2m/MHxS0mwipPNsRvBA==","signed_message":"canonical_sha256_bytes","builder_version":"pith-number-builder-2026-05-17-v1","receipt_version":"0.3","canonical_sha256":"1256f28c97a39c44e693ba4af89d7f19867c12732d2ee9c1664d75e84027f64d","last_reissued_at":"2026-05-18T03:39:53.326832Z","signature_status":"signed_v1","first_computed_at":"2026-05-18T03:39:53.326832Z","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54"},"source_kind":"arxiv","source_id":"1009.4192","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":"2026-05-18T03:39:53Z","supersedes":[],"prev_event":null,"signature":{"signature_status":"signed_v1","algorithm":"ed25519","key_id":"pith-v1-2026-05","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54","signature_b64":"Vi44/Pr6OhnxZQuZzUdDT0HvzP3Pf8kUw8HbSqHjVB1VKUg1y9HjCUG+338877nEjYjSSDSVMZyJsAqqkNViBw==","signed_message":"open_graph_event_sha256_bytes","signed_at":"2026-06-03T08:51:46.577278Z"},"content_sha256":"1648774e8fa830ef043d66f8294ecf2e48c7a8aeb1516a10ce47655bcd7e9e97","schema_version":"1.0","event_id":"sha256:1648774e8fa830ef043d66f8294ecf2e48c7a8aeb1516a10ce47655bcd7e9e97"},{"event_type":"graph_snapshot","subject_pith_number":"pith:2010:CJLPFDEXUOOEJZUTXJFPRHL7DG","target":"graph","payload":{"graph_snapshot":{"paper":{"title":"Astrometric Effects of a Stochastic Gravitational Wave Background","license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","headline":"","cross_cats":["gr-qc"],"primary_cat":"astro-ph.CO","authors_text":"((1) California Institute of Technology, (2) Cornell University), \\'Eanna \\'E. Flanagan (2), Laura G. Book (1)","submitted_at":"2010-09-21T20:00:03Z","abstract_excerpt":"A stochastic gravitational wave background causes the apparent positions of distant sources to fluctuate, with angular deflections of order the characteristic strain amplitude of the gravitational waves. These fluctuations may be detectable with high precision astrometry, as first suggested by Braginsky et al. in 1990. Several researchers have made order of magnitude estimates of the upper limits obtainable on the gravitational wave spectrum \\Omega_gw(f), at frequencies of order f ~ 1 yr^-1, both for the future space-based optical interferometry missions GAIA and SIM, and for VLBI interferomet"},"claims":{"count":0,"items":[],"snapshot_sha256":"258153158e38e3291e3d48162225fcdb2d5a3ed65a07baac614ab91432fd4f57"},"source":{"id":"1009.4192","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":"2026-05-18T03:39:53Z","supersedes":[],"prev_event":null,"signature":{"signature_status":"signed_v1","algorithm":"ed25519","key_id":"pith-v1-2026-05","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54","signature_b64":"lAgyNLUPMMxFp7ZimJ3lWqHkqPM7Pagd1qR3QGFYGXGajz6MYhSFPz+Jr/27UvRSdeSKiMX34adzU68edBKiDQ==","signed_message":"open_graph_event_sha256_bytes","signed_at":"2026-06-03T08:51:46.577643Z"},"content_sha256":"207cff4454a1e84b267fbc87519e4d9fb86320256c4e22e793a4b795ba5c6773","schema_version":"1.0","event_id":"sha256:207cff4454a1e84b267fbc87519e4d9fb86320256c4e22e793a4b795ba5c6773"}],"timestamp_proofs":[],"mirror_hints":[{"mirror_type":"https","name":"Pith Resolver","base_url":"https://pith.science","bundle_url":"https://pith.science/pith/CJLPFDEXUOOEJZUTXJFPRHL7DG/bundle.json","state_url":"https://pith.science/pith/CJLPFDEXUOOEJZUTXJFPRHL7DG/state.json","well_known_bundle_url":"https://pith.science/.well-known/pith/CJLPFDEXUOOEJZUTXJFPRHL7DG/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":"2026-06-03T08:51:46Z","links":{"resolver":"https://pith.science/pith/CJLPFDEXUOOEJZUTXJFPRHL7DG","bundle":"https://pith.science/pith/CJLPFDEXUOOEJZUTXJFPRHL7DG/bundle.json","state":"https://pith.science/pith/CJLPFDEXUOOEJZUTXJFPRHL7DG/state.json","well_known_bundle":"https://pith.science/.well-known/pith/CJLPFDEXUOOEJZUTXJFPRHL7DG/bundle.json"},"state":{"state_type":"pith_open_graph_state","state_version":"1.0","pith_number":"pith:2010:CJLPFDEXUOOEJZUTXJFPRHL7DG","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":"65ed6a4e15887ae60f71aab5c25ca23ebe3547143d09f57d1c402a89981b97fb","cross_cats_sorted":["gr-qc"],"license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"astro-ph.CO","submitted_at":"2010-09-21T20:00:03Z","title_canon_sha256":"1047786b99b324754b1b103991bc7bad5ddf6737a52318bbe715222027be5155"},"schema_version":"1.0","source":{"id":"1009.4192","kind":"arxiv","version":3}},"source_aliases":[{"alias_kind":"arxiv","alias_value":"1009.4192","created_at":"2026-05-18T03:39:53Z"},{"alias_kind":"arxiv_version","alias_value":"1009.4192v3","created_at":"2026-05-18T03:39:53Z"},{"alias_kind":"doi","alias_value":"10.48550/arxiv.1009.4192","created_at":"2026-05-18T03:39:53Z"},{"alias_kind":"pith_short_12","alias_value":"CJLPFDEXUOOE","created_at":"2026-05-18T12:26:06Z"},{"alias_kind":"pith_short_16","alias_value":"CJLPFDEXUOOEJZUT","created_at":"2026-05-18T12:26:06Z"},{"alias_kind":"pith_short_8","alias_value":"CJLPFDEX","created_at":"2026-05-18T12:26:06Z"}],"graph_snapshots":[{"event_id":"sha256:207cff4454a1e84b267fbc87519e4d9fb86320256c4e22e793a4b795ba5c6773","target":"graph","created_at":"2026-05-18T03:39:53Z","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":"A stochastic gravitational wave background causes the apparent positions of distant sources to fluctuate, with angular deflections of order the characteristic strain amplitude of the gravitational waves. These fluctuations may be detectable with high precision astrometry, as first suggested by Braginsky et al. in 1990. Several researchers have made order of magnitude estimates of the upper limits obtainable on the gravitational wave spectrum \\Omega_gw(f), at frequencies of order f ~ 1 yr^-1, both for the future space-based optical interferometry missions GAIA and SIM, and for VLBI interferomet","authors_text":"((1) California Institute of Technology, (2) Cornell University), \\'Eanna \\'E. Flanagan (2), Laura G. Book (1)","cross_cats":["gr-qc"],"headline":"","license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"astro-ph.CO","submitted_at":"2010-09-21T20:00:03Z","title":"Astrometric Effects of a Stochastic Gravitational Wave Background"},"references":{"count":0,"internal_anchors":0,"resolved_work":0,"sample":[],"snapshot_sha256":"258153158e38e3291e3d48162225fcdb2d5a3ed65a07baac614ab91432fd4f57"},"source":{"id":"1009.4192","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":"sha256:1648774e8fa830ef043d66f8294ecf2e48c7a8aeb1516a10ce47655bcd7e9e97","target":"record","created_at":"2026-05-18T03:39:53Z","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":"65ed6a4e15887ae60f71aab5c25ca23ebe3547143d09f57d1c402a89981b97fb","cross_cats_sorted":["gr-qc"],"license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"astro-ph.CO","submitted_at":"2010-09-21T20:00:03Z","title_canon_sha256":"1047786b99b324754b1b103991bc7bad5ddf6737a52318bbe715222027be5155"},"schema_version":"1.0","source":{"id":"1009.4192","kind":"arxiv","version":3}},"canonical_sha256":"1256f28c97a39c44e693ba4af89d7f19867c12732d2ee9c1664d75e84027f64d","receipt":{"algorithm":"ed25519","builder_version":"pith-number-builder-2026-05-17-v1","canonical_sha256":"1256f28c97a39c44e693ba4af89d7f19867c12732d2ee9c1664d75e84027f64d","first_computed_at":"2026-05-18T03:39:53.326832Z","key_id":"pith-v1-2026-05","kind":"pith_receipt","last_reissued_at":"2026-05-18T03:39:53.326832Z","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54","receipt_version":"0.3","signature_b64":"U3QLgfnGDg9L8ICls/rS0cFuuDGWBAR0hEUVE8JQJR1ZPsOxR3mC2wesC7UTVaNEApV2m/MHxS0mwipPNsRvBA==","signature_status":"signed_v1","signed_at":"2026-05-18T03:39:53.327493Z","signed_message":"canonical_sha256_bytes"},"source_id":"1009.4192","source_kind":"arxiv","source_version":3}}},"equivocations":[],"invalid_events":[],"applied_event_ids":["sha256:1648774e8fa830ef043d66f8294ecf2e48c7a8aeb1516a10ce47655bcd7e9e97","sha256:207cff4454a1e84b267fbc87519e4d9fb86320256c4e22e793a4b795ba5c6773"],"state_sha256":"7cf32b842ff120d6b05ed181ef23ba22109ffa791fdd15d21346607fdbb239cb"},"bundle_signature":{"signature_status":"signed_v1","algorithm":"ed25519","key_id":"pith-v1-2026-05","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54","signature_b64":"ExXAVnn63I/qSn5R7EtvSAzqHNrWKdf/8sOLUd3q51YUIl2uWp8ZjiTCu+9WeQJAcNNLPwZM43cBhgMEECmRBA==","signed_message":"bundle_sha256_bytes","signed_at":"2026-06-03T08:51:46.579667Z","bundle_sha256":"34fd9934cb0d92c5165e0ddb884244e5af3e423901f7693585a1b6db131663b4"}}