{"bundle_type":"pith_open_graph_bundle","bundle_version":"1.0","pith_number":"pith:2015:IBBPTHOP7FD3HIBZXYGEZUQF44","short_pith_number":"pith:IBBPTHOP","canonical_record":{"source":{"id":"1507.03806","kind":"arxiv","version":2},"metadata":{"license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"physics.optics","submitted_at":"2015-07-14T11:14:59Z","cross_cats_sorted":["physics.comp-ph"],"title_canon_sha256":"5770ef14261acd0b79b4e20afbb329c3275ec8bf9b72a793cac22f40333b2881","abstract_canon_sha256":"f64aad427854239caa24a7cd34d83a99cc4f37641b62f25e82748df4f79ef514"},"schema_version":"1.0"},"canonical_sha256":"4042f99dcff947b3a039be0c4cd205e729da6b721dd8611c7d1d666dd556984c","source":{"kind":"arxiv","id":"1507.03806","version":2},"source_aliases":[{"alias_kind":"arxiv","alias_value":"1507.03806","created_at":"2026-05-18T01:22:39Z"},{"alias_kind":"arxiv_version","alias_value":"1507.03806v2","created_at":"2026-05-18T01:22:39Z"},{"alias_kind":"doi","alias_value":"10.48550/arxiv.1507.03806","created_at":"2026-05-18T01:22:39Z"},{"alias_kind":"pith_short_12","alias_value":"IBBPTHOP7FD3","created_at":"2026-05-18T12:29:25Z"},{"alias_kind":"pith_short_16","alias_value":"IBBPTHOP7FD3HIBZ","created_at":"2026-05-18T12:29:25Z"},{"alias_kind":"pith_short_8","alias_value":"IBBPTHOP","created_at":"2026-05-18T12:29:25Z"}],"events":[{"event_type":"record_created","subject_pith_number":"pith:2015:IBBPTHOP7FD3HIBZXYGEZUQF44","target":"record","payload":{"canonical_record":{"source":{"id":"1507.03806","kind":"arxiv","version":2},"metadata":{"license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"physics.optics","submitted_at":"2015-07-14T11:14:59Z","cross_cats_sorted":["physics.comp-ph"],"title_canon_sha256":"5770ef14261acd0b79b4e20afbb329c3275ec8bf9b72a793cac22f40333b2881","abstract_canon_sha256":"f64aad427854239caa24a7cd34d83a99cc4f37641b62f25e82748df4f79ef514"},"schema_version":"1.0"},"canonical_sha256":"4042f99dcff947b3a039be0c4cd205e729da6b721dd8611c7d1d666dd556984c","receipt":{"kind":"pith_receipt","key_id":"pith-v1-2026-05","algorithm":"ed25519","signed_at":"2026-05-18T01:22:39.197289Z","signature_b64":"RvdD4pCGl+5r60MTehlaCgFqjZaMZrZ/spQ+eWEz8j4XRQ2fpoxe8jeTqWfE3+5X9BOG4oXY5f6DfW72k8rpAw==","signed_message":"canonical_sha256_bytes","builder_version":"pith-number-builder-2026-05-17-v1","receipt_version":"0.3","canonical_sha256":"4042f99dcff947b3a039be0c4cd205e729da6b721dd8611c7d1d666dd556984c","last_reissued_at":"2026-05-18T01:22:39.196888Z","signature_status":"signed_v1","first_computed_at":"2026-05-18T01:22:39.196888Z","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54"},"source_kind":"arxiv","source_id":"1507.03806","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":"2026-05-18T01:22:39Z","supersedes":[],"prev_event":null,"signature":{"signature_status":"signed_v1","algorithm":"ed25519","key_id":"pith-v1-2026-05","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54","signature_b64":"e9KhOmNk9QWp/YhnAkjeHynpiK0jofwaUTTT2OQdADdGQGfAWUyDVCqu3v7dWPHQkQaGZGLoJiQviWEsl3e1CA==","signed_message":"open_graph_event_sha256_bytes","signed_at":"2026-06-01T10:23:11.865668Z"},"content_sha256":"75d495e588451a31382096ff97ca7c9f0900891b9266d831d6feb467d588aa06","schema_version":"1.0","event_id":"sha256:75d495e588451a31382096ff97ca7c9f0900891b9266d831d6feb467d588aa06"},{"event_type":"graph_snapshot","subject_pith_number":"pith:2015:IBBPTHOP7FD3HIBZXYGEZUQF44","target":"graph","payload":{"graph_snapshot":{"paper":{"title":"Fast Simulation of Gaussian-Mode Scattering for Precision Interferometry","license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","headline":"","cross_cats":["physics.comp-ph"],"primary_cat":"physics.optics","authors_text":"Andreas Freise, Daniel Brown, Rory Smith","submitted_at":"2015-07-14T11:14:59Z","abstract_excerpt":"Understanding how laser light scatters from realistic mirror surfaces is crucial for the design, com- missioning and operation of precision interferometers, such as the current and next generation of gravitational-wave detectors. Numerical simulations are indispensable tools for this task but their utility can in practice be limited by the computational cost of describing the scattering process. In this paper we present an efficient method to significantly reduce the computational cost of optical simulations that incorporate scattering. This is accomplished by constructing a near optimal repre"},"claims":{"count":0,"items":[],"snapshot_sha256":"258153158e38e3291e3d48162225fcdb2d5a3ed65a07baac614ab91432fd4f57"},"source":{"id":"1507.03806","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":"2026-05-18T01:22:39Z","supersedes":[],"prev_event":null,"signature":{"signature_status":"signed_v1","algorithm":"ed25519","key_id":"pith-v1-2026-05","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54","signature_b64":"K7DO9ztoviKb9h0d2BGfAPIHXW+AwJBsauqn+Vlyt5zjrnQGwYeIAxGyS1VmnGvVyvOtGU1xcIN1N0bcHuiKCA==","signed_message":"open_graph_event_sha256_bytes","signed_at":"2026-06-01T10:23:11.866016Z"},"content_sha256":"2e024ea595bd09b6da77f404185b8e15b4840402be082878ba5400891c315be7","schema_version":"1.0","event_id":"sha256:2e024ea595bd09b6da77f404185b8e15b4840402be082878ba5400891c315be7"}],"timestamp_proofs":[],"mirror_hints":[{"mirror_type":"https","name":"Pith Resolver","base_url":"https://pith.science","bundle_url":"https://pith.science/pith/IBBPTHOP7FD3HIBZXYGEZUQF44/bundle.json","state_url":"https://pith.science/pith/IBBPTHOP7FD3HIBZXYGEZUQF44/state.json","well_known_bundle_url":"https://pith.science/.well-known/pith/IBBPTHOP7FD3HIBZXYGEZUQF44/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":"2026-06-01T10:23:11Z","links":{"resolver":"https://pith.science/pith/IBBPTHOP7FD3HIBZXYGEZUQF44","bundle":"https://pith.science/pith/IBBPTHOP7FD3HIBZXYGEZUQF44/bundle.json","state":"https://pith.science/pith/IBBPTHOP7FD3HIBZXYGEZUQF44/state.json","well_known_bundle":"https://pith.science/.well-known/pith/IBBPTHOP7FD3HIBZXYGEZUQF44/bundle.json"},"state":{"state_type":"pith_open_graph_state","state_version":"1.0","pith_number":"pith:2015:IBBPTHOP7FD3HIBZXYGEZUQF44","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":"f64aad427854239caa24a7cd34d83a99cc4f37641b62f25e82748df4f79ef514","cross_cats_sorted":["physics.comp-ph"],"license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"physics.optics","submitted_at":"2015-07-14T11:14:59Z","title_canon_sha256":"5770ef14261acd0b79b4e20afbb329c3275ec8bf9b72a793cac22f40333b2881"},"schema_version":"1.0","source":{"id":"1507.03806","kind":"arxiv","version":2}},"source_aliases":[{"alias_kind":"arxiv","alias_value":"1507.03806","created_at":"2026-05-18T01:22:39Z"},{"alias_kind":"arxiv_version","alias_value":"1507.03806v2","created_at":"2026-05-18T01:22:39Z"},{"alias_kind":"doi","alias_value":"10.48550/arxiv.1507.03806","created_at":"2026-05-18T01:22:39Z"},{"alias_kind":"pith_short_12","alias_value":"IBBPTHOP7FD3","created_at":"2026-05-18T12:29:25Z"},{"alias_kind":"pith_short_16","alias_value":"IBBPTHOP7FD3HIBZ","created_at":"2026-05-18T12:29:25Z"},{"alias_kind":"pith_short_8","alias_value":"IBBPTHOP","created_at":"2026-05-18T12:29:25Z"}],"graph_snapshots":[{"event_id":"sha256:2e024ea595bd09b6da77f404185b8e15b4840402be082878ba5400891c315be7","target":"graph","created_at":"2026-05-18T01:22:39Z","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":"Understanding how laser light scatters from realistic mirror surfaces is crucial for the design, com- missioning and operation of precision interferometers, such as the current and next generation of gravitational-wave detectors. Numerical simulations are indispensable tools for this task but their utility can in practice be limited by the computational cost of describing the scattering process. In this paper we present an efficient method to significantly reduce the computational cost of optical simulations that incorporate scattering. This is accomplished by constructing a near optimal repre","authors_text":"Andreas Freise, Daniel Brown, Rory Smith","cross_cats":["physics.comp-ph"],"headline":"","license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"physics.optics","submitted_at":"2015-07-14T11:14:59Z","title":"Fast Simulation of Gaussian-Mode Scattering for Precision Interferometry"},"references":{"count":0,"internal_anchors":0,"resolved_work":0,"sample":[],"snapshot_sha256":"258153158e38e3291e3d48162225fcdb2d5a3ed65a07baac614ab91432fd4f57"},"source":{"id":"1507.03806","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":"sha256:75d495e588451a31382096ff97ca7c9f0900891b9266d831d6feb467d588aa06","target":"record","created_at":"2026-05-18T01:22:39Z","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":"f64aad427854239caa24a7cd34d83a99cc4f37641b62f25e82748df4f79ef514","cross_cats_sorted":["physics.comp-ph"],"license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"physics.optics","submitted_at":"2015-07-14T11:14:59Z","title_canon_sha256":"5770ef14261acd0b79b4e20afbb329c3275ec8bf9b72a793cac22f40333b2881"},"schema_version":"1.0","source":{"id":"1507.03806","kind":"arxiv","version":2}},"canonical_sha256":"4042f99dcff947b3a039be0c4cd205e729da6b721dd8611c7d1d666dd556984c","receipt":{"algorithm":"ed25519","builder_version":"pith-number-builder-2026-05-17-v1","canonical_sha256":"4042f99dcff947b3a039be0c4cd205e729da6b721dd8611c7d1d666dd556984c","first_computed_at":"2026-05-18T01:22:39.196888Z","key_id":"pith-v1-2026-05","kind":"pith_receipt","last_reissued_at":"2026-05-18T01:22:39.196888Z","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54","receipt_version":"0.3","signature_b64":"RvdD4pCGl+5r60MTehlaCgFqjZaMZrZ/spQ+eWEz8j4XRQ2fpoxe8jeTqWfE3+5X9BOG4oXY5f6DfW72k8rpAw==","signature_status":"signed_v1","signed_at":"2026-05-18T01:22:39.197289Z","signed_message":"canonical_sha256_bytes"},"source_id":"1507.03806","source_kind":"arxiv","source_version":2}}},"equivocations":[],"invalid_events":[],"applied_event_ids":["sha256:75d495e588451a31382096ff97ca7c9f0900891b9266d831d6feb467d588aa06","sha256:2e024ea595bd09b6da77f404185b8e15b4840402be082878ba5400891c315be7"],"state_sha256":"5c83ab01efee5c3abdb1546c5a34cbb4ea71aa7d3302808bfdd516450d582d19"},"bundle_signature":{"signature_status":"signed_v1","algorithm":"ed25519","key_id":"pith-v1-2026-05","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54","signature_b64":"kob5HPOCXZM8p5rfqO5UsepMXKT0CJzTbAR/hBLXWQTgI3ZhKA9ivcVzc56ZhdytTjRq1AdsSBghqEzE5cy5DQ==","signed_message":"bundle_sha256_bytes","signed_at":"2026-06-01T10:23:11.868082Z","bundle_sha256":"3f3d723dd2672922df9947e9ee86b1b2e92f135e23bd8292a7ec994cd70daae5"}}