{"bundle_type":"pith_open_graph_bundle","bundle_version":"1.0","pith_number":"pith:2013:2KCYGAJHXU333FJUNQYGVVU6VM","short_pith_number":"pith:2KCYGAJH","canonical_record":{"source":{"id":"1302.2368","kind":"arxiv","version":1},"metadata":{"license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"gr-qc","submitted_at":"2013-02-10T21:20:41Z","cross_cats_sorted":[],"title_canon_sha256":"c5890d739c5896616b682402cb8a4ea62a7f1801307a59ac46ca49950e45187a","abstract_canon_sha256":"49392288afe246811fd8d2a4bf1faa217866813479dee3dce664d2af6b7d8a7b"},"schema_version":"1.0"},"canonical_sha256":"d285830127bd37bd95346c306ad69eab3e173a9dd9f2db4b1abb459592180eb8","source":{"kind":"arxiv","id":"1302.2368","version":1},"source_aliases":[{"alias_kind":"arxiv","alias_value":"1302.2368","created_at":"2026-05-18T03:34:01Z"},{"alias_kind":"arxiv_version","alias_value":"1302.2368v1","created_at":"2026-05-18T03:34:01Z"},{"alias_kind":"doi","alias_value":"10.48550/arxiv.1302.2368","created_at":"2026-05-18T03:34:01Z"},{"alias_kind":"pith_short_12","alias_value":"2KCYGAJHXU33","created_at":"2026-05-18T12:27:30Z"},{"alias_kind":"pith_short_16","alias_value":"2KCYGAJHXU333FJU","created_at":"2026-05-18T12:27:30Z"},{"alias_kind":"pith_short_8","alias_value":"2KCYGAJH","created_at":"2026-05-18T12:27:30Z"}],"events":[{"event_type":"record_created","subject_pith_number":"pith:2013:2KCYGAJHXU333FJUNQYGVVU6VM","target":"record","payload":{"canonical_record":{"source":{"id":"1302.2368","kind":"arxiv","version":1},"metadata":{"license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"gr-qc","submitted_at":"2013-02-10T21:20:41Z","cross_cats_sorted":[],"title_canon_sha256":"c5890d739c5896616b682402cb8a4ea62a7f1801307a59ac46ca49950e45187a","abstract_canon_sha256":"49392288afe246811fd8d2a4bf1faa217866813479dee3dce664d2af6b7d8a7b"},"schema_version":"1.0"},"canonical_sha256":"d285830127bd37bd95346c306ad69eab3e173a9dd9f2db4b1abb459592180eb8","receipt":{"kind":"pith_receipt","key_id":"pith-v1-2026-05","algorithm":"ed25519","signed_at":"2026-05-18T03:34:01.428151Z","signature_b64":"0VRW/4DiVimGsEvrdByQp5rmphPncw2uWA9NakfYPhG4hXG/gBi6kY8Cj2h7wBT6rNHJ1c7HmTdEfLhXymaECw==","signed_message":"canonical_sha256_bytes","builder_version":"pith-number-builder-2026-05-17-v1","receipt_version":"0.3","canonical_sha256":"d285830127bd37bd95346c306ad69eab3e173a9dd9f2db4b1abb459592180eb8","last_reissued_at":"2026-05-18T03:34:01.427609Z","signature_status":"signed_v1","first_computed_at":"2026-05-18T03:34:01.427609Z","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54"},"source_kind":"arxiv","source_id":"1302.2368","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":"2026-05-18T03:34:01Z","supersedes":[],"prev_event":null,"signature":{"signature_status":"signed_v1","algorithm":"ed25519","key_id":"pith-v1-2026-05","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54","signature_b64":"AaXbqIF0C0vG0pF0BJ587Fj25gosWdAjfHC3IXf9G9lFeZWeK4yIopVl/BW4ccW0Hu/EbwKolc1/qlXzX04BBw==","signed_message":"open_graph_event_sha256_bytes","signed_at":"2026-05-19T07:49:03.098840Z"},"content_sha256":"140265fa31aa3852e858864c29325232429d508d11b60701989fd4b2ea20f361","schema_version":"1.0","event_id":"sha256:140265fa31aa3852e858864c29325232429d508d11b60701989fd4b2ea20f361"},{"event_type":"graph_snapshot","subject_pith_number":"pith:2013:2KCYGAJHXU333FJUNQYGVVU6VM","target":"graph","payload":{"graph_snapshot":{"paper":{"title":"LISA-2020: An Intermediate Scale Space Gravitational Wave Observatory for This Decade","license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","headline":"","cross_cats":[],"primary_cat":"gr-qc","authors_text":"A. Al-Fauwaz, A.K. Al-Jadaan, A. Zoellner, D. DeBra, E. Hultgren, G. Dufresne Cutler, J.A. Lipa, K. Balakrishnan, R.L. Byer, S. Al-Thubiti, S. Buchman, S. Saraf, S. Tan","submitted_at":"2013-02-10T21:20:41Z","abstract_excerpt":"Over the last three decades, an exceptionally good science case has been made for pursuing gravitational wave (GW) astronomy. This has engendered a worldwide effort to detect the extremely weak signals generated by expected sources. With the next round of upgrades the ground based instruments are likely to make the first detections of the sources, and a new era of astronomy will begin, possibly as early as 2017. Inconveniently, due to seismic noise and baseline length issues, the low frequency (<10Hz) part of the spectrum, where the most interesting events are expected, will not be accessible."},"claims":{"count":0,"items":[],"snapshot_sha256":"258153158e38e3291e3d48162225fcdb2d5a3ed65a07baac614ab91432fd4f57"},"source":{"id":"1302.2368","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":"2026-05-18T03:34:01Z","supersedes":[],"prev_event":null,"signature":{"signature_status":"signed_v1","algorithm":"ed25519","key_id":"pith-v1-2026-05","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54","signature_b64":"yPMJjI4tqgCTMiuHqelsROuwzHYMplW8t8icDNDgzLjP53an4S6KNw7aPVO3tFt54Byk3fmSki8n+ly65YRFCg==","signed_message":"open_graph_event_sha256_bytes","signed_at":"2026-05-19T07:49:03.099404Z"},"content_sha256":"2af60a04011c3281c17d58a1200c9928f10fc09c8fbcf5622c40cc2243b87f74","schema_version":"1.0","event_id":"sha256:2af60a04011c3281c17d58a1200c9928f10fc09c8fbcf5622c40cc2243b87f74"}],"timestamp_proofs":[],"mirror_hints":[{"mirror_type":"https","name":"Pith Resolver","base_url":"https://pith.science","bundle_url":"https://pith.science/pith/2KCYGAJHXU333FJUNQYGVVU6VM/bundle.json","state_url":"https://pith.science/pith/2KCYGAJHXU333FJUNQYGVVU6VM/state.json","well_known_bundle_url":"https://pith.science/.well-known/pith/2KCYGAJHXU333FJUNQYGVVU6VM/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":"2026-05-19T07:49:03Z","links":{"resolver":"https://pith.science/pith/2KCYGAJHXU333FJUNQYGVVU6VM","bundle":"https://pith.science/pith/2KCYGAJHXU333FJUNQYGVVU6VM/bundle.json","state":"https://pith.science/pith/2KCYGAJHXU333FJUNQYGVVU6VM/state.json","well_known_bundle":"https://pith.science/.well-known/pith/2KCYGAJHXU333FJUNQYGVVU6VM/bundle.json"},"state":{"state_type":"pith_open_graph_state","state_version":"1.0","pith_number":"pith:2013:2KCYGAJHXU333FJUNQYGVVU6VM","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":"49392288afe246811fd8d2a4bf1faa217866813479dee3dce664d2af6b7d8a7b","cross_cats_sorted":[],"license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"gr-qc","submitted_at":"2013-02-10T21:20:41Z","title_canon_sha256":"c5890d739c5896616b682402cb8a4ea62a7f1801307a59ac46ca49950e45187a"},"schema_version":"1.0","source":{"id":"1302.2368","kind":"arxiv","version":1}},"source_aliases":[{"alias_kind":"arxiv","alias_value":"1302.2368","created_at":"2026-05-18T03:34:01Z"},{"alias_kind":"arxiv_version","alias_value":"1302.2368v1","created_at":"2026-05-18T03:34:01Z"},{"alias_kind":"doi","alias_value":"10.48550/arxiv.1302.2368","created_at":"2026-05-18T03:34:01Z"},{"alias_kind":"pith_short_12","alias_value":"2KCYGAJHXU33","created_at":"2026-05-18T12:27:30Z"},{"alias_kind":"pith_short_16","alias_value":"2KCYGAJHXU333FJU","created_at":"2026-05-18T12:27:30Z"},{"alias_kind":"pith_short_8","alias_value":"2KCYGAJH","created_at":"2026-05-18T12:27:30Z"}],"graph_snapshots":[{"event_id":"sha256:2af60a04011c3281c17d58a1200c9928f10fc09c8fbcf5622c40cc2243b87f74","target":"graph","created_at":"2026-05-18T03:34:01Z","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":"Over the last three decades, an exceptionally good science case has been made for pursuing gravitational wave (GW) astronomy. This has engendered a worldwide effort to detect the extremely weak signals generated by expected sources. With the next round of upgrades the ground based instruments are likely to make the first detections of the sources, and a new era of astronomy will begin, possibly as early as 2017. Inconveniently, due to seismic noise and baseline length issues, the low frequency (<10Hz) part of the spectrum, where the most interesting events are expected, will not be accessible.","authors_text":"A. Al-Fauwaz, A.K. Al-Jadaan, A. Zoellner, D. DeBra, E. Hultgren, G. Dufresne Cutler, J.A. Lipa, K. Balakrishnan, R.L. Byer, S. Al-Thubiti, S. Buchman, S. Saraf, S. Tan","cross_cats":[],"headline":"","license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"gr-qc","submitted_at":"2013-02-10T21:20:41Z","title":"LISA-2020: An Intermediate Scale Space Gravitational Wave Observatory for This Decade"},"references":{"count":0,"internal_anchors":0,"resolved_work":0,"sample":[],"snapshot_sha256":"258153158e38e3291e3d48162225fcdb2d5a3ed65a07baac614ab91432fd4f57"},"source":{"id":"1302.2368","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":"sha256:140265fa31aa3852e858864c29325232429d508d11b60701989fd4b2ea20f361","target":"record","created_at":"2026-05-18T03:34:01Z","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":"49392288afe246811fd8d2a4bf1faa217866813479dee3dce664d2af6b7d8a7b","cross_cats_sorted":[],"license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"gr-qc","submitted_at":"2013-02-10T21:20:41Z","title_canon_sha256":"c5890d739c5896616b682402cb8a4ea62a7f1801307a59ac46ca49950e45187a"},"schema_version":"1.0","source":{"id":"1302.2368","kind":"arxiv","version":1}},"canonical_sha256":"d285830127bd37bd95346c306ad69eab3e173a9dd9f2db4b1abb459592180eb8","receipt":{"algorithm":"ed25519","builder_version":"pith-number-builder-2026-05-17-v1","canonical_sha256":"d285830127bd37bd95346c306ad69eab3e173a9dd9f2db4b1abb459592180eb8","first_computed_at":"2026-05-18T03:34:01.427609Z","key_id":"pith-v1-2026-05","kind":"pith_receipt","last_reissued_at":"2026-05-18T03:34:01.427609Z","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54","receipt_version":"0.3","signature_b64":"0VRW/4DiVimGsEvrdByQp5rmphPncw2uWA9NakfYPhG4hXG/gBi6kY8Cj2h7wBT6rNHJ1c7HmTdEfLhXymaECw==","signature_status":"signed_v1","signed_at":"2026-05-18T03:34:01.428151Z","signed_message":"canonical_sha256_bytes"},"source_id":"1302.2368","source_kind":"arxiv","source_version":1}}},"equivocations":[],"invalid_events":[],"applied_event_ids":["sha256:140265fa31aa3852e858864c29325232429d508d11b60701989fd4b2ea20f361","sha256:2af60a04011c3281c17d58a1200c9928f10fc09c8fbcf5622c40cc2243b87f74"],"state_sha256":"41151514ffe16254545b9b6a08865aa0a042dcc96ba27f3060f23ce4240ae007"},"bundle_signature":{"signature_status":"signed_v1","algorithm":"ed25519","key_id":"pith-v1-2026-05","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54","signature_b64":"FjPgdgDbBxSEzVDBINi60kFGbefCcPwwNFyASi5XFUFqrvPA8QqBnU/PMKuPX9NUmc63O6Q0EBwgpfjSoC4aDQ==","signed_message":"bundle_sha256_bytes","signed_at":"2026-05-19T07:49:03.101985Z","bundle_sha256":"a8e84f2f00f39ab61449d87005508ec3b107b3a99a43448132e237f92f1e4852"}}