{"bundle_type":"pith_open_graph_bundle","bundle_version":"1.0","pith_number":"pith:2015:ZARIHK5VXEWBJZ67J6Z4T5QKC7","short_pith_number":"pith:ZARIHK5V","canonical_record":{"source":{"id":"1502.02284","kind":"arxiv","version":1},"metadata":{"license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"gr-qc","submitted_at":"2015-02-08T18:27:09Z","cross_cats_sorted":["physics.optics"],"title_canon_sha256":"430a81f7b04483b579c3f8589c18aa8557ce7fa4dfa5922ed37f636037407f42","abstract_canon_sha256":"03a90d9b4f8039ee519bb7cf6a342aefd7cbeb07584cadfc581654fb10ffd812"},"schema_version":"1.0"},"canonical_sha256":"c82283abb5b92c14e7df4fb3c9f60a17dd334f8cd0c13a421b3c32f35289f207","source":{"kind":"arxiv","id":"1502.02284","version":1},"source_aliases":[{"alias_kind":"arxiv","alias_value":"1502.02284","created_at":"2026-05-18T02:27:43Z"},{"alias_kind":"arxiv_version","alias_value":"1502.02284v1","created_at":"2026-05-18T02:27:43Z"},{"alias_kind":"doi","alias_value":"10.48550/arxiv.1502.02284","created_at":"2026-05-18T02:27:43Z"},{"alias_kind":"pith_short_12","alias_value":"ZARIHK5VXEWB","created_at":"2026-05-18T12:29:52Z"},{"alias_kind":"pith_short_16","alias_value":"ZARIHK5VXEWBJZ67","created_at":"2026-05-18T12:29:52Z"},{"alias_kind":"pith_short_8","alias_value":"ZARIHK5V","created_at":"2026-05-18T12:29:52Z"}],"events":[{"event_type":"record_created","subject_pith_number":"pith:2015:ZARIHK5VXEWBJZ67J6Z4T5QKC7","target":"record","payload":{"canonical_record":{"source":{"id":"1502.02284","kind":"arxiv","version":1},"metadata":{"license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"gr-qc","submitted_at":"2015-02-08T18:27:09Z","cross_cats_sorted":["physics.optics"],"title_canon_sha256":"430a81f7b04483b579c3f8589c18aa8557ce7fa4dfa5922ed37f636037407f42","abstract_canon_sha256":"03a90d9b4f8039ee519bb7cf6a342aefd7cbeb07584cadfc581654fb10ffd812"},"schema_version":"1.0"},"canonical_sha256":"c82283abb5b92c14e7df4fb3c9f60a17dd334f8cd0c13a421b3c32f35289f207","receipt":{"kind":"pith_receipt","key_id":"pith-v1-2026-05","algorithm":"ed25519","signed_at":"2026-05-18T02:27:43.017161Z","signature_b64":"xfop68ePG99nw8pzui+JWRuIyUidC58VVEQ4ceIIyWXI5uNnU6MG5FUvN7+4vNmvOoEXT1f/rCHk6K5fNBzsDg==","signed_message":"canonical_sha256_bytes","builder_version":"pith-number-builder-2026-05-17-v1","receipt_version":"0.3","canonical_sha256":"c82283abb5b92c14e7df4fb3c9f60a17dd334f8cd0c13a421b3c32f35289f207","last_reissued_at":"2026-05-18T02:27:43.016338Z","signature_status":"signed_v1","first_computed_at":"2026-05-18T02:27:43.016338Z","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54"},"source_kind":"arxiv","source_id":"1502.02284","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":"2026-05-18T02:27:43Z","supersedes":[],"prev_event":null,"signature":{"signature_status":"signed_v1","algorithm":"ed25519","key_id":"pith-v1-2026-05","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54","signature_b64":"CTEL2m8xEL2sGl0m4D6DVXdDbQ6OJdtkhthrc+zd2V7eGM4RzJhAVqmSjx4WKpUK2O0pQxWM9u2QQv1NuwrOCw==","signed_message":"open_graph_event_sha256_bytes","signed_at":"2026-05-27T00:10:35.455043Z"},"content_sha256":"7c08d4c3e680581ac4a58d57053aef17602f14a76337f8d8941a44aeef412587","schema_version":"1.0","event_id":"sha256:7c08d4c3e680581ac4a58d57053aef17602f14a76337f8d8941a44aeef412587"},{"event_type":"graph_snapshot","subject_pith_number":"pith:2015:ZARIHK5VXEWBJZ67J6Z4T5QKC7","target":"graph","payload":{"graph_snapshot":{"paper":{"title":"In-situ characterization of the thermal state of resonant optical interferometers via tracking of their higher-order mode resonances","license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","headline":"","cross_cats":["physics.optics"],"primary_cat":"gr-qc","authors_text":"Aidan F. Brooks, Chris L. Mueller, David B. Tanner, Eleanor J. King, Guido Mueller, Hiroaki Yamamoto, Koji Arai, Paul Fulda, Peter Fritschel, Rana X. Adhikari, Rijuparna Chakraborty, Valery V. Frolov","submitted_at":"2015-02-08T18:27:09Z","abstract_excerpt":"Thermal lensing in resonant optical interferometers such as those used for gravitational wave detection is a concern due to the negative impact on control signals and instrument sensitivity. In this paper we describe a method for monitoring the thermal state of such interferometers by probing the higher-order spatial mode resonances of the cavities within them. We demonstrate the use of this technique to measure changes in the Advanced LIGO input mode cleaner cavity geometry as a function of input power, and subsequently infer the optical absorption at the mirror surfaces at the level of 1 ppm"},"claims":{"count":0,"items":[],"snapshot_sha256":"258153158e38e3291e3d48162225fcdb2d5a3ed65a07baac614ab91432fd4f57"},"source":{"id":"1502.02284","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":"2026-05-18T02:27:43Z","supersedes":[],"prev_event":null,"signature":{"signature_status":"signed_v1","algorithm":"ed25519","key_id":"pith-v1-2026-05","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54","signature_b64":"kkSn71tN3CLlrX+zzbhYA3vlmtgG6lErTNsr2bSJNtsqwWLCuvchKiPYA+nSWxH/ig7qeD6S0gvhNco5QUG1AQ==","signed_message":"open_graph_event_sha256_bytes","signed_at":"2026-05-27T00:10:35.455467Z"},"content_sha256":"f50f46c07803bccb66a3fbde8ea9f6d9befb8466893ff82540c33bbc3269729f","schema_version":"1.0","event_id":"sha256:f50f46c07803bccb66a3fbde8ea9f6d9befb8466893ff82540c33bbc3269729f"}],"timestamp_proofs":[],"mirror_hints":[{"mirror_type":"https","name":"Pith Resolver","base_url":"https://pith.science","bundle_url":"https://pith.science/pith/ZARIHK5VXEWBJZ67J6Z4T5QKC7/bundle.json","state_url":"https://pith.science/pith/ZARIHK5VXEWBJZ67J6Z4T5QKC7/state.json","well_known_bundle_url":"https://pith.science/.well-known/pith/ZARIHK5VXEWBJZ67J6Z4T5QKC7/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":"2026-05-27T00:10:35Z","links":{"resolver":"https://pith.science/pith/ZARIHK5VXEWBJZ67J6Z4T5QKC7","bundle":"https://pith.science/pith/ZARIHK5VXEWBJZ67J6Z4T5QKC7/bundle.json","state":"https://pith.science/pith/ZARIHK5VXEWBJZ67J6Z4T5QKC7/state.json","well_known_bundle":"https://pith.science/.well-known/pith/ZARIHK5VXEWBJZ67J6Z4T5QKC7/bundle.json"},"state":{"state_type":"pith_open_graph_state","state_version":"1.0","pith_number":"pith:2015:ZARIHK5VXEWBJZ67J6Z4T5QKC7","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":"03a90d9b4f8039ee519bb7cf6a342aefd7cbeb07584cadfc581654fb10ffd812","cross_cats_sorted":["physics.optics"],"license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"gr-qc","submitted_at":"2015-02-08T18:27:09Z","title_canon_sha256":"430a81f7b04483b579c3f8589c18aa8557ce7fa4dfa5922ed37f636037407f42"},"schema_version":"1.0","source":{"id":"1502.02284","kind":"arxiv","version":1}},"source_aliases":[{"alias_kind":"arxiv","alias_value":"1502.02284","created_at":"2026-05-18T02:27:43Z"},{"alias_kind":"arxiv_version","alias_value":"1502.02284v1","created_at":"2026-05-18T02:27:43Z"},{"alias_kind":"doi","alias_value":"10.48550/arxiv.1502.02284","created_at":"2026-05-18T02:27:43Z"},{"alias_kind":"pith_short_12","alias_value":"ZARIHK5VXEWB","created_at":"2026-05-18T12:29:52Z"},{"alias_kind":"pith_short_16","alias_value":"ZARIHK5VXEWBJZ67","created_at":"2026-05-18T12:29:52Z"},{"alias_kind":"pith_short_8","alias_value":"ZARIHK5V","created_at":"2026-05-18T12:29:52Z"}],"graph_snapshots":[{"event_id":"sha256:f50f46c07803bccb66a3fbde8ea9f6d9befb8466893ff82540c33bbc3269729f","target":"graph","created_at":"2026-05-18T02:27:43Z","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":"Thermal lensing in resonant optical interferometers such as those used for gravitational wave detection is a concern due to the negative impact on control signals and instrument sensitivity. In this paper we describe a method for monitoring the thermal state of such interferometers by probing the higher-order spatial mode resonances of the cavities within them. We demonstrate the use of this technique to measure changes in the Advanced LIGO input mode cleaner cavity geometry as a function of input power, and subsequently infer the optical absorption at the mirror surfaces at the level of 1 ppm","authors_text":"Aidan F. Brooks, Chris L. Mueller, David B. Tanner, Eleanor J. King, Guido Mueller, Hiroaki Yamamoto, Koji Arai, Paul Fulda, Peter Fritschel, Rana X. Adhikari, Rijuparna Chakraborty, Valery V. Frolov","cross_cats":["physics.optics"],"headline":"","license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"gr-qc","submitted_at":"2015-02-08T18:27:09Z","title":"In-situ characterization of the thermal state of resonant optical interferometers via tracking of their higher-order mode resonances"},"references":{"count":0,"internal_anchors":0,"resolved_work":0,"sample":[],"snapshot_sha256":"258153158e38e3291e3d48162225fcdb2d5a3ed65a07baac614ab91432fd4f57"},"source":{"id":"1502.02284","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":"sha256:7c08d4c3e680581ac4a58d57053aef17602f14a76337f8d8941a44aeef412587","target":"record","created_at":"2026-05-18T02:27:43Z","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":"03a90d9b4f8039ee519bb7cf6a342aefd7cbeb07584cadfc581654fb10ffd812","cross_cats_sorted":["physics.optics"],"license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"gr-qc","submitted_at":"2015-02-08T18:27:09Z","title_canon_sha256":"430a81f7b04483b579c3f8589c18aa8557ce7fa4dfa5922ed37f636037407f42"},"schema_version":"1.0","source":{"id":"1502.02284","kind":"arxiv","version":1}},"canonical_sha256":"c82283abb5b92c14e7df4fb3c9f60a17dd334f8cd0c13a421b3c32f35289f207","receipt":{"algorithm":"ed25519","builder_version":"pith-number-builder-2026-05-17-v1","canonical_sha256":"c82283abb5b92c14e7df4fb3c9f60a17dd334f8cd0c13a421b3c32f35289f207","first_computed_at":"2026-05-18T02:27:43.016338Z","key_id":"pith-v1-2026-05","kind":"pith_receipt","last_reissued_at":"2026-05-18T02:27:43.016338Z","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54","receipt_version":"0.3","signature_b64":"xfop68ePG99nw8pzui+JWRuIyUidC58VVEQ4ceIIyWXI5uNnU6MG5FUvN7+4vNmvOoEXT1f/rCHk6K5fNBzsDg==","signature_status":"signed_v1","signed_at":"2026-05-18T02:27:43.017161Z","signed_message":"canonical_sha256_bytes"},"source_id":"1502.02284","source_kind":"arxiv","source_version":1}}},"equivocations":[],"invalid_events":[],"applied_event_ids":["sha256:7c08d4c3e680581ac4a58d57053aef17602f14a76337f8d8941a44aeef412587","sha256:f50f46c07803bccb66a3fbde8ea9f6d9befb8466893ff82540c33bbc3269729f"],"state_sha256":"85ee40777c44a4f4132201aa4c2e5de0aa5ce78b16aa875e5c25617f90e1c7e4"},"bundle_signature":{"signature_status":"signed_v1","algorithm":"ed25519","key_id":"pith-v1-2026-05","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54","signature_b64":"4uFCSUg1idOtQHtv3eL+/JUNfSEn/ZsE3H02QLA34ILVN6F1dHQWrkUDhf6tpEoppYvnDciMPzgDlBSsQOovBw==","signed_message":"bundle_sha256_bytes","signed_at":"2026-05-27T00:10:35.457834Z","bundle_sha256":"eac3471884fa1979e631569c6d3224bdac2d176dcfdf5e4194330e8e0d782adf"}}