{"state_type":"pith_open_graph_state","state_version":"1.0","pith_number":"pith:2021:Z477VG2PYQKH5F6R3K6CV4NT2A","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":"2e2d0852f5a6b6a65c7da3782302a0380a0ba84dc438b33eb5f2f8af7826a7c6","cross_cats_sorted":["astro-ph.HE","astro-ph.IM"],"license":"http://creativecommons.org/licenses/by/4.0/","primary_cat":"gr-qc","submitted_at":"2021-11-12T23:46:06Z","title_canon_sha256":"936daafc1a89242070bdcbb66b3a16ff5b115092b8f84d1c7816c0aee47f89f3"},"schema_version":"1.0","source":{"id":"2111.06986","kind":"arxiv","version":1}},"source_aliases":[{"alias_kind":"arxiv","alias_value":"2111.06986","created_at":"2026-07-05T03:31:34Z"},{"alias_kind":"arxiv_version","alias_value":"2111.06986v1","created_at":"2026-07-05T03:31:34Z"},{"alias_kind":"doi","alias_value":"10.48550/arxiv.2111.06986","created_at":"2026-07-05T03:31:34Z"},{"alias_kind":"pith_short_12","alias_value":"Z477VG2PYQKH","created_at":"2026-07-05T03:31:34Z"},{"alias_kind":"pith_short_16","alias_value":"Z477VG2PYQKH5F6R","created_at":"2026-07-05T03:31:34Z"},{"alias_kind":"pith_short_8","alias_value":"Z477VG2P","created_at":"2026-07-05T03:31:34Z"}],"graph_snapshots":[{"event_id":"sha256:2f81bd8fdeea2463407fe3faef829f5406cd3a9646bc5e4e327ebfe3d32fef00","target":"graph","created_at":"2026-07-05T03:31:34Z","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"},"integrity":{"available":true,"clean":true,"detectors_run":[],"endpoint":"/pith/2111.06986/integrity.json","findings":[],"snapshot_sha256":"c28c3603d3b5d939e8dc4c7e95fa8dfce3d595e45f758748cecf8e644a296938","summary":{"advisory":0,"by_detector":{},"critical":0,"informational":0}},"paper":{"abstract_excerpt":"The first direct detection of gravitational waves emitted from a pair of merging black holes in 2015 has been heralded as one of most significant scientific breakthroughs in physics and astronomy of the 21st century. Motivated by the tremendous scientific opportunities now opened by gravitational-wave observatories and recognizing that to fully exploit the new field will require new observatories that may take 15 to 20 years from conception until operations begin, the Gravitational Wave International Committee (GWIC) convened a subcommittee to examine the path to build and operate a network of","authors_text":"B.S. Sathyaprakash, David McClelland, David Reitze, David Shoemaker, Gary Sanders, Harald Lueck, Jo van den Brand, Michele Punturo, Peter Couvares, Sheila Rowan, Stavros Katsanevas, Takaaki Kajita, Vicky Kalogera","cross_cats":["astro-ph.HE","astro-ph.IM"],"headline":"","license":"http://creativecommons.org/licenses/by/4.0/","primary_cat":"gr-qc","submitted_at":"2021-11-12T23:46:06Z","title":"Expanding the Reach of Gravitational Wave Astronomy to the Edge of the Universe: The Gravitational-Wave International Committee Study Reports on Next Generation Ground-based Gravitational-Wave Observatories"},"references":{"count":0,"internal_anchors":0,"resolved_work":0,"sample":[],"snapshot_sha256":"258153158e38e3291e3d48162225fcdb2d5a3ed65a07baac614ab91432fd4f57"},"source":{"id":"2111.06986","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:b82cca82ad49f43da3a6177e593c0c73b08a87a946c0618fdcce264aabe5a302","target":"record","created_at":"2026-07-05T03:31:34Z","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":"2e2d0852f5a6b6a65c7da3782302a0380a0ba84dc438b33eb5f2f8af7826a7c6","cross_cats_sorted":["astro-ph.HE","astro-ph.IM"],"license":"http://creativecommons.org/licenses/by/4.0/","primary_cat":"gr-qc","submitted_at":"2021-11-12T23:46:06Z","title_canon_sha256":"936daafc1a89242070bdcbb66b3a16ff5b115092b8f84d1c7816c0aee47f89f3"},"schema_version":"1.0","source":{"id":"2111.06986","kind":"arxiv","version":1}},"canonical_sha256":"cf3ffa9b4fc4147e97d1dabc2af1b3d03d49f1c11f5d513f8c56ff093a62ca36","receipt":{"algorithm":"ed25519","builder_version":"pith-number-builder-2026-05-17-v1","canonical_sha256":"cf3ffa9b4fc4147e97d1dabc2af1b3d03d49f1c11f5d513f8c56ff093a62ca36","first_computed_at":"2026-07-05T03:31:34.040711Z","key_id":"pith-v1-2026-05","kind":"pith_receipt","last_reissued_at":"2026-07-05T03:31:34.040711Z","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54","receipt_version":"0.3","signature_b64":"1rJOArA+DZXBxoWKep+NDW2t+UkobXF54FoKAL4P19mMZO9pBLmQ21tspTHO/STOwbjVj3Cyk8fxcehTEIQKAA==","signature_status":"signed_v1","signed_at":"2026-07-05T03:31:34.041171Z","signed_message":"canonical_sha256_bytes"},"source_id":"2111.06986","source_kind":"arxiv","source_version":1}}},"equivocations":[],"invalid_events":[],"applied_event_ids":["sha256:b82cca82ad49f43da3a6177e593c0c73b08a87a946c0618fdcce264aabe5a302","sha256:2f81bd8fdeea2463407fe3faef829f5406cd3a9646bc5e4e327ebfe3d32fef00"],"state_sha256":"5c3ee352d72869345d403434a2908fbe971067069f3d533bc37659626fa543c4"}