{"bundle_type":"pith_open_graph_bundle","bundle_version":"1.0","pith_number":"pith:2020:VJNOCAH22XNZIWNVSIUGC3NJUK","short_pith_number":"pith:VJNOCAH2","canonical_record":{"source":{"id":"2003.07468","kind":"arxiv","version":1},"metadata":{"license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"astro-ph.IM","submitted_at":"2020-03-16T23:23:06Z","cross_cats_sorted":[],"title_canon_sha256":"2cf1a6f87db977010d6ad8d518a3d3b14583ae0633ee0536d84f702912dd6407","abstract_canon_sha256":"604a91132515c64f1d41856b6250edeb53f255c65fb6f534dfe595597f598115"},"schema_version":"1.0"},"canonical_sha256":"aa5ae100fad5db9459b59228616da9a2a35fd76b128e4e09a9880cbe9ea8d9e0","source":{"kind":"arxiv","id":"2003.07468","version":1},"source_aliases":[{"alias_kind":"arxiv","alias_value":"2003.07468","created_at":"2026-07-05T00:57:19Z"},{"alias_kind":"arxiv_version","alias_value":"2003.07468v1","created_at":"2026-07-05T00:57:19Z"},{"alias_kind":"doi","alias_value":"10.48550/arxiv.2003.07468","created_at":"2026-07-05T00:57:19Z"},{"alias_kind":"pith_short_12","alias_value":"VJNOCAH22XNZ","created_at":"2026-07-05T00:57:19Z"},{"alias_kind":"pith_short_16","alias_value":"VJNOCAH22XNZIWNV","created_at":"2026-07-05T00:57:19Z"},{"alias_kind":"pith_short_8","alias_value":"VJNOCAH2","created_at":"2026-07-05T00:57:19Z"}],"events":[{"event_type":"record_created","subject_pith_number":"pith:2020:VJNOCAH22XNZIWNVSIUGC3NJUK","target":"record","payload":{"canonical_record":{"source":{"id":"2003.07468","kind":"arxiv","version":1},"metadata":{"license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"astro-ph.IM","submitted_at":"2020-03-16T23:23:06Z","cross_cats_sorted":[],"title_canon_sha256":"2cf1a6f87db977010d6ad8d518a3d3b14583ae0633ee0536d84f702912dd6407","abstract_canon_sha256":"604a91132515c64f1d41856b6250edeb53f255c65fb6f534dfe595597f598115"},"schema_version":"1.0"},"canonical_sha256":"aa5ae100fad5db9459b59228616da9a2a35fd76b128e4e09a9880cbe9ea8d9e0","receipt":{"kind":"pith_receipt","key_id":"pith-v1-2026-05","algorithm":"ed25519","signed_at":"2026-07-05T00:57:19.444818Z","signature_b64":"5QBh+qqy+bbEHCrnfFprmFKDplWcsno9PMbhhV3wWqZizHDfJVmQoo5KkyEPiYyqi2VnQdfJGS8M7hIpO4tYAg==","signed_message":"canonical_sha256_bytes","builder_version":"pith-number-builder-2026-05-17-v1","receipt_version":"0.3","canonical_sha256":"aa5ae100fad5db9459b59228616da9a2a35fd76b128e4e09a9880cbe9ea8d9e0","last_reissued_at":"2026-07-05T00:57:19.444451Z","signature_status":"signed_v1","first_computed_at":"2026-07-05T00:57:19.444451Z","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54"},"source_kind":"arxiv","source_id":"2003.07468","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":"2026-07-05T00:57:19Z","supersedes":[],"prev_event":null,"signature":{"signature_status":"signed_v1","algorithm":"ed25519","key_id":"pith-v1-2026-05","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54","signature_b64":"01IGr2WKTfPJii4BGhRnXS1cJLrwK2JM4eB21CetBsu85BkQtMuwkf2ayrKuyqE7l/Wu3tLo0AOZyn7n7PVXBQ==","signed_message":"open_graph_event_sha256_bytes","signed_at":"2026-08-10T06:54:50.661709Z"},"content_sha256":"e76ad9cbf5d1375911a6e2661cc9dd07db1613ab7080355fc6e6347970c7723f","schema_version":"1.0","event_id":"sha256:e76ad9cbf5d1375911a6e2661cc9dd07db1613ab7080355fc6e6347970c7723f"},{"event_type":"graph_snapshot","subject_pith_number":"pith:2020:VJNOCAH22XNZIWNVSIUGC3NJUK","target":"graph","payload":{"graph_snapshot":{"paper":{"title":"Implications of the Quantum Noise Target for the Einstein Telescope Infrastructure Design","license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","headline":"","cross_cats":[],"primary_cat":"astro-ph.IM","authors_text":"Andreas Freise, Haixing Miao, Philip Jones, Teng Zhang","submitted_at":"2020-03-16T23:23:06Z","abstract_excerpt":"The design of a complex instrument such as Einstein Telescope (ET) is based on a target sensitivity derived from an elaborate case for scientific exploration. At the same time it incorporates many trade-off decisions to maximise the scientific value by balancing the performance of the various subsystems against the cost of the installation and operation. In this paper we discuss the impact of a long signal recycling cavity (SRC) on the quantum noise performance. We show the reduction in sensitivity due to a long SRC for an ET high-frequency interferometer, provide details on possible compensat"},"claims":{"count":0,"items":[],"snapshot_sha256":"258153158e38e3291e3d48162225fcdb2d5a3ed65a07baac614ab91432fd4f57"},"source":{"id":"2003.07468","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":""},"integrity":{"clean":true,"summary":{"advisory":0,"critical":0,"by_detector":{},"informational":0},"endpoint":"/pith/2003.07468/integrity.json","findings":[],"available":true,"detectors_run":[],"snapshot_sha256":"c28c3603d3b5d939e8dc4c7e95fa8dfce3d595e45f758748cecf8e644a296938"},"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":"2026-07-05T00:57:19Z","supersedes":[],"prev_event":null,"signature":{"signature_status":"signed_v1","algorithm":"ed25519","key_id":"pith-v1-2026-05","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54","signature_b64":"YA48NpWL2ZW1DmllKwVUIJN4+RWEQqx6lt5WY6x61lT6xO2cd9CNKm2GSPEXM9K4FVOgy3sZgW3pWbr+sQEqBg==","signed_message":"open_graph_event_sha256_bytes","signed_at":"2026-08-10T06:54:50.662728Z"},"content_sha256":"cc64552f818518d2ac523e42cedecd0b6a67ae334318d1f332bf304590e4aacc","schema_version":"1.0","event_id":"sha256:cc64552f818518d2ac523e42cedecd0b6a67ae334318d1f332bf304590e4aacc"}],"timestamp_proofs":[],"mirror_hints":[{"mirror_type":"https","name":"Pith Resolver","base_url":"https://pith.science","bundle_url":"https://pith.science/pith/VJNOCAH22XNZIWNVSIUGC3NJUK/bundle.json","state_url":"https://pith.science/pith/VJNOCAH22XNZIWNVSIUGC3NJUK/state.json","well_known_bundle_url":"https://pith.science/.well-known/pith/VJNOCAH22XNZIWNVSIUGC3NJUK/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":"2026-08-10T06:54:50Z","links":{"resolver":"https://pith.science/pith/VJNOCAH22XNZIWNVSIUGC3NJUK","bundle":"https://pith.science/pith/VJNOCAH22XNZIWNVSIUGC3NJUK/bundle.json","state":"https://pith.science/pith/VJNOCAH22XNZIWNVSIUGC3NJUK/state.json","well_known_bundle":"https://pith.science/.well-known/pith/VJNOCAH22XNZIWNVSIUGC3NJUK/bundle.json"},"state":{"state_type":"pith_open_graph_state","state_version":"1.0","pith_number":"pith:2020:VJNOCAH22XNZIWNVSIUGC3NJUK","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":"604a91132515c64f1d41856b6250edeb53f255c65fb6f534dfe595597f598115","cross_cats_sorted":[],"license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"astro-ph.IM","submitted_at":"2020-03-16T23:23:06Z","title_canon_sha256":"2cf1a6f87db977010d6ad8d518a3d3b14583ae0633ee0536d84f702912dd6407"},"schema_version":"1.0","source":{"id":"2003.07468","kind":"arxiv","version":1}},"source_aliases":[{"alias_kind":"arxiv","alias_value":"2003.07468","created_at":"2026-07-05T00:57:19Z"},{"alias_kind":"arxiv_version","alias_value":"2003.07468v1","created_at":"2026-07-05T00:57:19Z"},{"alias_kind":"doi","alias_value":"10.48550/arxiv.2003.07468","created_at":"2026-07-05T00:57:19Z"},{"alias_kind":"pith_short_12","alias_value":"VJNOCAH22XNZ","created_at":"2026-07-05T00:57:19Z"},{"alias_kind":"pith_short_16","alias_value":"VJNOCAH22XNZIWNV","created_at":"2026-07-05T00:57:19Z"},{"alias_kind":"pith_short_8","alias_value":"VJNOCAH2","created_at":"2026-07-05T00:57:19Z"}],"graph_snapshots":[{"event_id":"sha256:cc64552f818518d2ac523e42cedecd0b6a67ae334318d1f332bf304590e4aacc","target":"graph","created_at":"2026-07-05T00:57:19Z","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/2003.07468/integrity.json","findings":[],"snapshot_sha256":"c28c3603d3b5d939e8dc4c7e95fa8dfce3d595e45f758748cecf8e644a296938","summary":{"advisory":0,"by_detector":{},"critical":0,"informational":0}},"paper":{"abstract_excerpt":"The design of a complex instrument such as Einstein Telescope (ET) is based on a target sensitivity derived from an elaborate case for scientific exploration. At the same time it incorporates many trade-off decisions to maximise the scientific value by balancing the performance of the various subsystems against the cost of the installation and operation. In this paper we discuss the impact of a long signal recycling cavity (SRC) on the quantum noise performance. We show the reduction in sensitivity due to a long SRC for an ET high-frequency interferometer, provide details on possible compensat","authors_text":"Andreas Freise, Haixing Miao, Philip Jones, Teng Zhang","cross_cats":[],"headline":"","license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"astro-ph.IM","submitted_at":"2020-03-16T23:23:06Z","title":"Implications of the Quantum Noise Target for the Einstein Telescope Infrastructure Design"},"references":{"count":0,"internal_anchors":0,"resolved_work":0,"sample":[],"snapshot_sha256":"258153158e38e3291e3d48162225fcdb2d5a3ed65a07baac614ab91432fd4f57"},"source":{"id":"2003.07468","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:e76ad9cbf5d1375911a6e2661cc9dd07db1613ab7080355fc6e6347970c7723f","target":"record","created_at":"2026-07-05T00:57:19Z","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":"604a91132515c64f1d41856b6250edeb53f255c65fb6f534dfe595597f598115","cross_cats_sorted":[],"license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"astro-ph.IM","submitted_at":"2020-03-16T23:23:06Z","title_canon_sha256":"2cf1a6f87db977010d6ad8d518a3d3b14583ae0633ee0536d84f702912dd6407"},"schema_version":"1.0","source":{"id":"2003.07468","kind":"arxiv","version":1}},"canonical_sha256":"aa5ae100fad5db9459b59228616da9a2a35fd76b128e4e09a9880cbe9ea8d9e0","receipt":{"algorithm":"ed25519","builder_version":"pith-number-builder-2026-05-17-v1","canonical_sha256":"aa5ae100fad5db9459b59228616da9a2a35fd76b128e4e09a9880cbe9ea8d9e0","first_computed_at":"2026-07-05T00:57:19.444451Z","key_id":"pith-v1-2026-05","kind":"pith_receipt","last_reissued_at":"2026-07-05T00:57:19.444451Z","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54","receipt_version":"0.3","signature_b64":"5QBh+qqy+bbEHCrnfFprmFKDplWcsno9PMbhhV3wWqZizHDfJVmQoo5KkyEPiYyqi2VnQdfJGS8M7hIpO4tYAg==","signature_status":"signed_v1","signed_at":"2026-07-05T00:57:19.444818Z","signed_message":"canonical_sha256_bytes"},"source_id":"2003.07468","source_kind":"arxiv","source_version":1}}},"equivocations":[],"invalid_events":[],"applied_event_ids":["sha256:e76ad9cbf5d1375911a6e2661cc9dd07db1613ab7080355fc6e6347970c7723f","sha256:cc64552f818518d2ac523e42cedecd0b6a67ae334318d1f332bf304590e4aacc"],"state_sha256":"1a2ed6c90be50036dcc1ad29ff9112ad6a1a06486b6a3a4380acb955a91418ef"},"bundle_signature":{"signature_status":"signed_v1","algorithm":"ed25519","key_id":"pith-v1-2026-05","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54","signature_b64":"X6frxyCdkWtGsqXC1r2B3SAaqjAOvqypkVxBWb/LDteERMcy0fy/DHNbYS1LXY5tXeWqWu6tyDIKtz1eSy/NCQ==","signed_message":"bundle_sha256_bytes","signed_at":"2026-08-10T06:54:50.670343Z","bundle_sha256":"6e98ff165cd0669a9d4742b737a92e1466a0d684982227a52fc3f2e67038ffb8"}}