{"bundle_type":"pith_open_graph_bundle","bundle_version":"1.0","pith_number":"pith:2009:4IQDVVFZEE37GH2WFWBM2FMJXJ","short_pith_number":"pith:4IQDVVFZ","canonical_record":{"source":{"id":"0903.0338","kind":"arxiv","version":1},"metadata":{"license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"gr-qc","submitted_at":"2009-03-02T17:17:17Z","cross_cats_sorted":["astro-ph.CO","astro-ph.HE","astro-ph.IM"],"title_canon_sha256":"e4e3bab498ed814085cf8057c15c7513ca0b474d075b672f4f37e66652835398","abstract_canon_sha256":"d95e67e8746ad2cd2821585397223539f5646cd6e32e7f83123675c4b04d3da5"},"schema_version":"1.0"},"canonical_sha256":"e2203ad4b92137f31f562d82cd1589ba70f9fcfdadb10b96d9bc2221fd4da6f3","source":{"kind":"arxiv","id":"0903.0338","version":1},"source_aliases":[{"alias_kind":"arxiv","alias_value":"0903.0338","created_at":"2026-05-18T02:14:37Z"},{"alias_kind":"arxiv_version","alias_value":"0903.0338v1","created_at":"2026-05-18T02:14:37Z"},{"alias_kind":"doi","alias_value":"10.48550/arxiv.0903.0338","created_at":"2026-05-18T02:14:37Z"},{"alias_kind":"pith_short_12","alias_value":"4IQDVVFZEE37","created_at":"2026-05-18T12:25:58Z"},{"alias_kind":"pith_short_16","alias_value":"4IQDVVFZEE37GH2W","created_at":"2026-05-18T12:25:58Z"},{"alias_kind":"pith_short_8","alias_value":"4IQDVVFZ","created_at":"2026-05-18T12:25:58Z"}],"events":[{"event_type":"record_created","subject_pith_number":"pith:2009:4IQDVVFZEE37GH2WFWBM2FMJXJ","target":"record","payload":{"canonical_record":{"source":{"id":"0903.0338","kind":"arxiv","version":1},"metadata":{"license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"gr-qc","submitted_at":"2009-03-02T17:17:17Z","cross_cats_sorted":["astro-ph.CO","astro-ph.HE","astro-ph.IM"],"title_canon_sha256":"e4e3bab498ed814085cf8057c15c7513ca0b474d075b672f4f37e66652835398","abstract_canon_sha256":"d95e67e8746ad2cd2821585397223539f5646cd6e32e7f83123675c4b04d3da5"},"schema_version":"1.0"},"canonical_sha256":"e2203ad4b92137f31f562d82cd1589ba70f9fcfdadb10b96d9bc2221fd4da6f3","receipt":{"kind":"pith_receipt","key_id":"pith-v1-2026-05","algorithm":"ed25519","signed_at":"2026-05-18T02:14:37.795944Z","signature_b64":"IwEOcAuBJQAywExaPkvTD05Jl1alv3Pm3p362zC7LpRs1P25YIRP4zqRTPLBvvkSxQsNa+Tugvhl33eYBJO+BQ==","signed_message":"canonical_sha256_bytes","builder_version":"pith-number-builder-2026-05-17-v1","receipt_version":"0.3","canonical_sha256":"e2203ad4b92137f31f562d82cd1589ba70f9fcfdadb10b96d9bc2221fd4da6f3","last_reissued_at":"2026-05-18T02:14:37.793849Z","signature_status":"signed_v1","first_computed_at":"2026-05-18T02:14:37.793849Z","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54"},"source_kind":"arxiv","source_id":"0903.0338","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":"2026-05-18T02:14:37Z","supersedes":[],"prev_event":null,"signature":{"signature_status":"signed_v1","algorithm":"ed25519","key_id":"pith-v1-2026-05","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54","signature_b64":"l+H787a4iPPXIx8a2UHFeGT53ybEjycCjWnHJhPw13YHKeNbrBii/o8gqI4Rkltoz7kGMe2q5/+wKuItWZarAQ==","signed_message":"open_graph_event_sha256_bytes","signed_at":"2026-06-03T04:59:55.822242Z"},"content_sha256":"2d3d79d17cc6f1cae2c6d1de4231e84d9bda700f78750e3c194583d60d124a26","schema_version":"1.0","event_id":"sha256:2d3d79d17cc6f1cae2c6d1de4231e84d9bda700f78750e3c194583d60d124a26"},{"event_type":"graph_snapshot","subject_pith_number":"pith:2009:4IQDVVFZEE37GH2WFWBM2FMJXJ","target":"graph","payload":{"graph_snapshot":{"paper":{"title":"Physics, Astrophysics and Cosmology with Gravitational Waves","license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","headline":"","cross_cats":["astro-ph.CO","astro-ph.HE","astro-ph.IM"],"primary_cat":"gr-qc","authors_text":"B.F. Schutz, B.S. Sathyaprakash","submitted_at":"2009-03-02T17:17:17Z","abstract_excerpt":"Gravitational wave detectors are already operating at interesting sensitivity levels, and they have an upgrade path that should result in secure detections by 2014. We review the physics of gravitational waves, how they interact with detectors (bars and interferometers), and how these detectors operate. We study the most likely sources of gravitational waves and review the data analysis methods that are used to extract their signals from detector noise. Then we consider the consequences of gravitational wave detections and observations for physics, astrophysics, and cosmology."},"claims":{"count":0,"items":[],"snapshot_sha256":"258153158e38e3291e3d48162225fcdb2d5a3ed65a07baac614ab91432fd4f57"},"source":{"id":"0903.0338","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":"2026-05-18T02:14:37Z","supersedes":[],"prev_event":null,"signature":{"signature_status":"signed_v1","algorithm":"ed25519","key_id":"pith-v1-2026-05","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54","signature_b64":"AmjvRxRDvWGEbp7MeOfa6R1tbkkERSRajKkbSKvpIIsjUTolgFVHKMZF1xs2ZySmH6YN4oaGkzRDe3NwjFdpBg==","signed_message":"open_graph_event_sha256_bytes","signed_at":"2026-06-03T04:59:55.822632Z"},"content_sha256":"afe209b5187385b4b2a5f14c906882e2c3b997cc0f29ee9e9f04f50054c3f50b","schema_version":"1.0","event_id":"sha256:afe209b5187385b4b2a5f14c906882e2c3b997cc0f29ee9e9f04f50054c3f50b"}],"timestamp_proofs":[],"mirror_hints":[{"mirror_type":"https","name":"Pith Resolver","base_url":"https://pith.science","bundle_url":"https://pith.science/pith/4IQDVVFZEE37GH2WFWBM2FMJXJ/bundle.json","state_url":"https://pith.science/pith/4IQDVVFZEE37GH2WFWBM2FMJXJ/state.json","well_known_bundle_url":"https://pith.science/.well-known/pith/4IQDVVFZEE37GH2WFWBM2FMJXJ/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":"2026-06-03T04:59:55Z","links":{"resolver":"https://pith.science/pith/4IQDVVFZEE37GH2WFWBM2FMJXJ","bundle":"https://pith.science/pith/4IQDVVFZEE37GH2WFWBM2FMJXJ/bundle.json","state":"https://pith.science/pith/4IQDVVFZEE37GH2WFWBM2FMJXJ/state.json","well_known_bundle":"https://pith.science/.well-known/pith/4IQDVVFZEE37GH2WFWBM2FMJXJ/bundle.json"},"state":{"state_type":"pith_open_graph_state","state_version":"1.0","pith_number":"pith:2009:4IQDVVFZEE37GH2WFWBM2FMJXJ","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":"d95e67e8746ad2cd2821585397223539f5646cd6e32e7f83123675c4b04d3da5","cross_cats_sorted":["astro-ph.CO","astro-ph.HE","astro-ph.IM"],"license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"gr-qc","submitted_at":"2009-03-02T17:17:17Z","title_canon_sha256":"e4e3bab498ed814085cf8057c15c7513ca0b474d075b672f4f37e66652835398"},"schema_version":"1.0","source":{"id":"0903.0338","kind":"arxiv","version":1}},"source_aliases":[{"alias_kind":"arxiv","alias_value":"0903.0338","created_at":"2026-05-18T02:14:37Z"},{"alias_kind":"arxiv_version","alias_value":"0903.0338v1","created_at":"2026-05-18T02:14:37Z"},{"alias_kind":"doi","alias_value":"10.48550/arxiv.0903.0338","created_at":"2026-05-18T02:14:37Z"},{"alias_kind":"pith_short_12","alias_value":"4IQDVVFZEE37","created_at":"2026-05-18T12:25:58Z"},{"alias_kind":"pith_short_16","alias_value":"4IQDVVFZEE37GH2W","created_at":"2026-05-18T12:25:58Z"},{"alias_kind":"pith_short_8","alias_value":"4IQDVVFZ","created_at":"2026-05-18T12:25:58Z"}],"graph_snapshots":[{"event_id":"sha256:afe209b5187385b4b2a5f14c906882e2c3b997cc0f29ee9e9f04f50054c3f50b","target":"graph","created_at":"2026-05-18T02:14:37Z","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":"Gravitational wave detectors are already operating at interesting sensitivity levels, and they have an upgrade path that should result in secure detections by 2014. We review the physics of gravitational waves, how they interact with detectors (bars and interferometers), and how these detectors operate. We study the most likely sources of gravitational waves and review the data analysis methods that are used to extract their signals from detector noise. Then we consider the consequences of gravitational wave detections and observations for physics, astrophysics, and cosmology.","authors_text":"B.F. Schutz, B.S. Sathyaprakash","cross_cats":["astro-ph.CO","astro-ph.HE","astro-ph.IM"],"headline":"","license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"gr-qc","submitted_at":"2009-03-02T17:17:17Z","title":"Physics, Astrophysics and Cosmology with Gravitational Waves"},"references":{"count":0,"internal_anchors":0,"resolved_work":0,"sample":[],"snapshot_sha256":"258153158e38e3291e3d48162225fcdb2d5a3ed65a07baac614ab91432fd4f57"},"source":{"id":"0903.0338","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":"sha256:2d3d79d17cc6f1cae2c6d1de4231e84d9bda700f78750e3c194583d60d124a26","target":"record","created_at":"2026-05-18T02:14:37Z","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":"d95e67e8746ad2cd2821585397223539f5646cd6e32e7f83123675c4b04d3da5","cross_cats_sorted":["astro-ph.CO","astro-ph.HE","astro-ph.IM"],"license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"gr-qc","submitted_at":"2009-03-02T17:17:17Z","title_canon_sha256":"e4e3bab498ed814085cf8057c15c7513ca0b474d075b672f4f37e66652835398"},"schema_version":"1.0","source":{"id":"0903.0338","kind":"arxiv","version":1}},"canonical_sha256":"e2203ad4b92137f31f562d82cd1589ba70f9fcfdadb10b96d9bc2221fd4da6f3","receipt":{"algorithm":"ed25519","builder_version":"pith-number-builder-2026-05-17-v1","canonical_sha256":"e2203ad4b92137f31f562d82cd1589ba70f9fcfdadb10b96d9bc2221fd4da6f3","first_computed_at":"2026-05-18T02:14:37.793849Z","key_id":"pith-v1-2026-05","kind":"pith_receipt","last_reissued_at":"2026-05-18T02:14:37.793849Z","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54","receipt_version":"0.3","signature_b64":"IwEOcAuBJQAywExaPkvTD05Jl1alv3Pm3p362zC7LpRs1P25YIRP4zqRTPLBvvkSxQsNa+Tugvhl33eYBJO+BQ==","signature_status":"signed_v1","signed_at":"2026-05-18T02:14:37.795944Z","signed_message":"canonical_sha256_bytes"},"source_id":"0903.0338","source_kind":"arxiv","source_version":1}}},"equivocations":[],"invalid_events":[],"applied_event_ids":["sha256:2d3d79d17cc6f1cae2c6d1de4231e84d9bda700f78750e3c194583d60d124a26","sha256:afe209b5187385b4b2a5f14c906882e2c3b997cc0f29ee9e9f04f50054c3f50b"],"state_sha256":"cab5b67a411e2826e3fa9be2c375a2f6621820a265f6b21feeb4260885504c3c"},"bundle_signature":{"signature_status":"signed_v1","algorithm":"ed25519","key_id":"pith-v1-2026-05","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54","signature_b64":"c1DBn3PRWlju7FRhozLlcDJL9GQI+6E6bkuLJAEyih4wvI+UMKdEYirNCNBcOq5A01N5eRlpg5qW83zjnQt3Bw==","signed_message":"bundle_sha256_bytes","signed_at":"2026-06-03T04:59:55.824649Z","bundle_sha256":"b47671808dab983d87f52beff76c01cd378f06aa9f3a9bbb8078ca959891a734"}}