{"bundle_type":"pith_open_graph_bundle","bundle_version":"1.0","pith_number":"pith:2015:K5YDWCH4SAS6WBOHS4ZEHRKA42","short_pith_number":"pith:K5YDWCH4","canonical_record":{"source":{"id":"1505.01302","kind":"arxiv","version":2},"metadata":{"license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"quant-ph","submitted_at":"2015-05-06T10:03:08Z","cross_cats_sorted":["cond-mat.quant-gas","gr-qc"],"title_canon_sha256":"45c1d8499be1a2241814413745edb1678d9da2e165a7b056334a2b1c0ab597dd","abstract_canon_sha256":"b2a94bda0ff2b27ce49f13a2278b948d70c6b62536cfa50b7b5275be8592bf3d"},"schema_version":"1.0"},"canonical_sha256":"57703b08fc9025eb05c7973243c540e69116119753fa84918a52d94c6fe4ee3e","source":{"kind":"arxiv","id":"1505.01302","version":2},"source_aliases":[{"alias_kind":"arxiv","alias_value":"1505.01302","created_at":"2026-05-18T01:14:18Z"},{"alias_kind":"arxiv_version","alias_value":"1505.01302v2","created_at":"2026-05-18T01:14:18Z"},{"alias_kind":"doi","alias_value":"10.48550/arxiv.1505.01302","created_at":"2026-05-18T01:14:18Z"},{"alias_kind":"pith_short_12","alias_value":"K5YDWCH4SAS6","created_at":"2026-05-18T12:29:27Z"},{"alias_kind":"pith_short_16","alias_value":"K5YDWCH4SAS6WBOH","created_at":"2026-05-18T12:29:27Z"},{"alias_kind":"pith_short_8","alias_value":"K5YDWCH4","created_at":"2026-05-18T12:29:27Z"}],"events":[{"event_type":"record_created","subject_pith_number":"pith:2015:K5YDWCH4SAS6WBOHS4ZEHRKA42","target":"record","payload":{"canonical_record":{"source":{"id":"1505.01302","kind":"arxiv","version":2},"metadata":{"license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"quant-ph","submitted_at":"2015-05-06T10:03:08Z","cross_cats_sorted":["cond-mat.quant-gas","gr-qc"],"title_canon_sha256":"45c1d8499be1a2241814413745edb1678d9da2e165a7b056334a2b1c0ab597dd","abstract_canon_sha256":"b2a94bda0ff2b27ce49f13a2278b948d70c6b62536cfa50b7b5275be8592bf3d"},"schema_version":"1.0"},"canonical_sha256":"57703b08fc9025eb05c7973243c540e69116119753fa84918a52d94c6fe4ee3e","receipt":{"kind":"pith_receipt","key_id":"pith-v1-2026-05","algorithm":"ed25519","signed_at":"2026-05-18T01:14:18.123341Z","signature_b64":"7ddzowXc0DTyR75SSEK5U8VHJvZJoCHjI5olFervs8wY9ofF57N0p6yq91BVdqjYaNCYTZ/5/1HlVfprhBjKCA==","signed_message":"canonical_sha256_bytes","builder_version":"pith-number-builder-2026-05-17-v1","receipt_version":"0.3","canonical_sha256":"57703b08fc9025eb05c7973243c540e69116119753fa84918a52d94c6fe4ee3e","last_reissued_at":"2026-05-18T01:14:18.122796Z","signature_status":"signed_v1","first_computed_at":"2026-05-18T01:14:18.122796Z","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54"},"source_kind":"arxiv","source_id":"1505.01302","source_version":2,"attestation_state":"computed"},"signer":{"signer_id":"pith.science","signer_type":"pith_registry","key_id":"pith-v1-2026-05","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54"},"created_at":"2026-05-18T01:14:18Z","supersedes":[],"prev_event":null,"signature":{"signature_status":"signed_v1","algorithm":"ed25519","key_id":"pith-v1-2026-05","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54","signature_b64":"iQw9owUdrkLYrt4QAtG6H1spvamkiVAm2y5ZiqjJnaDx/9kJq6CEzGKawhXQmynuseEvZ1OLEK6Uk6dzcyHRDQ==","signed_message":"open_graph_event_sha256_bytes","signed_at":"2026-05-27T20:16:31.056363Z"},"content_sha256":"9ea98efdca42e99a9f4c83e779a25052f0d39149f69c9cf928c105d1a5373299","schema_version":"1.0","event_id":"sha256:9ea98efdca42e99a9f4c83e779a25052f0d39149f69c9cf928c105d1a5373299"},{"event_type":"graph_snapshot","subject_pith_number":"pith:2015:K5YDWCH4SAS6WBOHS4ZEHRKA42","target":"graph","payload":{"graph_snapshot":{"paper":{"title":"Thermal noise in BEC-phononic gravitational wave detectors","license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","headline":"","cross_cats":["cond-mat.quant-gas","gr-qc"],"primary_cat":"quant-ph","authors_text":"Carlos Sab\\'in, David Edward Bruschi, Ivette Fuentes, Jan Kohlrus","submitted_at":"2015-05-06T10:03:08Z","abstract_excerpt":"Quasiparticles in a Bose-Einstein condensate are sensitive to space-time distortions. Gravitational waves can induce transformations on the state of phonons that can be observed through quantum state discrimination techniques. We show that this method is highly robust to thermal noise and depletion. We derive a bound on the strain sensitivity that shows that the detection of waves in the kHz regime is not significantly affected by temperature in a wide range of parameters that are well within current experimental reach."},"claims":{"count":0,"items":[],"snapshot_sha256":"258153158e38e3291e3d48162225fcdb2d5a3ed65a07baac614ab91432fd4f57"},"source":{"id":"1505.01302","kind":"arxiv","version":2},"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":"2026-05-18T01:14:18Z","supersedes":[],"prev_event":null,"signature":{"signature_status":"signed_v1","algorithm":"ed25519","key_id":"pith-v1-2026-05","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54","signature_b64":"ijIZPG7Q8c8H7muT8h2BucTtX6J9pfEFv+WNpybXva6CT5P/H73gOT8IX7Ixtq9PeRRIV/PfNFyO+XXDdielBA==","signed_message":"open_graph_event_sha256_bytes","signed_at":"2026-05-27T20:16:31.056901Z"},"content_sha256":"6ced01a40b852569baf4c11a6cbd66f8e3a9539d10b4a7f9c37f1622f8fc6690","schema_version":"1.0","event_id":"sha256:6ced01a40b852569baf4c11a6cbd66f8e3a9539d10b4a7f9c37f1622f8fc6690"}],"timestamp_proofs":[],"mirror_hints":[{"mirror_type":"https","name":"Pith Resolver","base_url":"https://pith.science","bundle_url":"https://pith.science/pith/K5YDWCH4SAS6WBOHS4ZEHRKA42/bundle.json","state_url":"https://pith.science/pith/K5YDWCH4SAS6WBOHS4ZEHRKA42/state.json","well_known_bundle_url":"https://pith.science/.well-known/pith/K5YDWCH4SAS6WBOHS4ZEHRKA42/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":"2026-05-27T20:16:31Z","links":{"resolver":"https://pith.science/pith/K5YDWCH4SAS6WBOHS4ZEHRKA42","bundle":"https://pith.science/pith/K5YDWCH4SAS6WBOHS4ZEHRKA42/bundle.json","state":"https://pith.science/pith/K5YDWCH4SAS6WBOHS4ZEHRKA42/state.json","well_known_bundle":"https://pith.science/.well-known/pith/K5YDWCH4SAS6WBOHS4ZEHRKA42/bundle.json"},"state":{"state_type":"pith_open_graph_state","state_version":"1.0","pith_number":"pith:2015:K5YDWCH4SAS6WBOHS4ZEHRKA42","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":"b2a94bda0ff2b27ce49f13a2278b948d70c6b62536cfa50b7b5275be8592bf3d","cross_cats_sorted":["cond-mat.quant-gas","gr-qc"],"license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"quant-ph","submitted_at":"2015-05-06T10:03:08Z","title_canon_sha256":"45c1d8499be1a2241814413745edb1678d9da2e165a7b056334a2b1c0ab597dd"},"schema_version":"1.0","source":{"id":"1505.01302","kind":"arxiv","version":2}},"source_aliases":[{"alias_kind":"arxiv","alias_value":"1505.01302","created_at":"2026-05-18T01:14:18Z"},{"alias_kind":"arxiv_version","alias_value":"1505.01302v2","created_at":"2026-05-18T01:14:18Z"},{"alias_kind":"doi","alias_value":"10.48550/arxiv.1505.01302","created_at":"2026-05-18T01:14:18Z"},{"alias_kind":"pith_short_12","alias_value":"K5YDWCH4SAS6","created_at":"2026-05-18T12:29:27Z"},{"alias_kind":"pith_short_16","alias_value":"K5YDWCH4SAS6WBOH","created_at":"2026-05-18T12:29:27Z"},{"alias_kind":"pith_short_8","alias_value":"K5YDWCH4","created_at":"2026-05-18T12:29:27Z"}],"graph_snapshots":[{"event_id":"sha256:6ced01a40b852569baf4c11a6cbd66f8e3a9539d10b4a7f9c37f1622f8fc6690","target":"graph","created_at":"2026-05-18T01:14:18Z","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":"Quasiparticles in a Bose-Einstein condensate are sensitive to space-time distortions. Gravitational waves can induce transformations on the state of phonons that can be observed through quantum state discrimination techniques. We show that this method is highly robust to thermal noise and depletion. We derive a bound on the strain sensitivity that shows that the detection of waves in the kHz regime is not significantly affected by temperature in a wide range of parameters that are well within current experimental reach.","authors_text":"Carlos Sab\\'in, David Edward Bruschi, Ivette Fuentes, Jan Kohlrus","cross_cats":["cond-mat.quant-gas","gr-qc"],"headline":"","license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"quant-ph","submitted_at":"2015-05-06T10:03:08Z","title":"Thermal noise in BEC-phononic gravitational wave detectors"},"references":{"count":0,"internal_anchors":0,"resolved_work":0,"sample":[],"snapshot_sha256":"258153158e38e3291e3d48162225fcdb2d5a3ed65a07baac614ab91432fd4f57"},"source":{"id":"1505.01302","kind":"arxiv","version":2},"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":"sha256:9ea98efdca42e99a9f4c83e779a25052f0d39149f69c9cf928c105d1a5373299","target":"record","created_at":"2026-05-18T01:14:18Z","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":"b2a94bda0ff2b27ce49f13a2278b948d70c6b62536cfa50b7b5275be8592bf3d","cross_cats_sorted":["cond-mat.quant-gas","gr-qc"],"license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"quant-ph","submitted_at":"2015-05-06T10:03:08Z","title_canon_sha256":"45c1d8499be1a2241814413745edb1678d9da2e165a7b056334a2b1c0ab597dd"},"schema_version":"1.0","source":{"id":"1505.01302","kind":"arxiv","version":2}},"canonical_sha256":"57703b08fc9025eb05c7973243c540e69116119753fa84918a52d94c6fe4ee3e","receipt":{"algorithm":"ed25519","builder_version":"pith-number-builder-2026-05-17-v1","canonical_sha256":"57703b08fc9025eb05c7973243c540e69116119753fa84918a52d94c6fe4ee3e","first_computed_at":"2026-05-18T01:14:18.122796Z","key_id":"pith-v1-2026-05","kind":"pith_receipt","last_reissued_at":"2026-05-18T01:14:18.122796Z","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54","receipt_version":"0.3","signature_b64":"7ddzowXc0DTyR75SSEK5U8VHJvZJoCHjI5olFervs8wY9ofF57N0p6yq91BVdqjYaNCYTZ/5/1HlVfprhBjKCA==","signature_status":"signed_v1","signed_at":"2026-05-18T01:14:18.123341Z","signed_message":"canonical_sha256_bytes"},"source_id":"1505.01302","source_kind":"arxiv","source_version":2}}},"equivocations":[],"invalid_events":[],"applied_event_ids":["sha256:9ea98efdca42e99a9f4c83e779a25052f0d39149f69c9cf928c105d1a5373299","sha256:6ced01a40b852569baf4c11a6cbd66f8e3a9539d10b4a7f9c37f1622f8fc6690"],"state_sha256":"4751d34147ce7490de1532405f30dcfc737bd5c51e58665e39c16ecb126be021"},"bundle_signature":{"signature_status":"signed_v1","algorithm":"ed25519","key_id":"pith-v1-2026-05","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54","signature_b64":"uWE2n+wMd6SBxGXT9Ym7k/J9VoEnEcQOu52p5fGz0A+EHjzObGthDtNJiqBao+gBNVpPGM8wNT1xfx40JZdKDg==","signed_message":"bundle_sha256_bytes","signed_at":"2026-05-27T20:16:31.059893Z","bundle_sha256":"03bb302106d93bda2642a02a988dc8ee047c6b6dcdd6dea8a6c95e0d3310fec4"}}