{"bundle_type":"pith_open_graph_bundle","bundle_version":"1.0","pith_number":"pith:2013:KYZDFEIUFF72EYTWJHKJNJIMSC","short_pith_number":"pith:KYZDFEIU","canonical_record":{"source":{"id":"1305.4658","kind":"arxiv","version":1},"metadata":{"license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"physics.optics","submitted_at":"2013-05-20T21:03:57Z","cross_cats_sorted":[],"title_canon_sha256":"40cd66f68f5702cbdcf3754e5f43d25c4ea56d3766caf70d96e64fc1cffa84ea","abstract_canon_sha256":"f363124a09fca47c4cfc675c55698386ef85d85c02049ca6b586a8b2046f3b7c"},"schema_version":"1.0"},"canonical_sha256":"5632329114297fa2627649d496a50c90b871306af0c3bd2c244e9a3a78c1e146","source":{"kind":"arxiv","id":"1305.4658","version":1},"source_aliases":[{"alias_kind":"arxiv","alias_value":"1305.4658","created_at":"2026-05-18T01:22:43Z"},{"alias_kind":"arxiv_version","alias_value":"1305.4658v1","created_at":"2026-05-18T01:22:43Z"},{"alias_kind":"doi","alias_value":"10.48550/arxiv.1305.4658","created_at":"2026-05-18T01:22:43Z"},{"alias_kind":"pith_short_12","alias_value":"KYZDFEIUFF72","created_at":"2026-05-18T12:27:51Z"},{"alias_kind":"pith_short_16","alias_value":"KYZDFEIUFF72EYTW","created_at":"2026-05-18T12:27:51Z"},{"alias_kind":"pith_short_8","alias_value":"KYZDFEIU","created_at":"2026-05-18T12:27:51Z"}],"events":[{"event_type":"record_created","subject_pith_number":"pith:2013:KYZDFEIUFF72EYTWJHKJNJIMSC","target":"record","payload":{"canonical_record":{"source":{"id":"1305.4658","kind":"arxiv","version":1},"metadata":{"license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"physics.optics","submitted_at":"2013-05-20T21:03:57Z","cross_cats_sorted":[],"title_canon_sha256":"40cd66f68f5702cbdcf3754e5f43d25c4ea56d3766caf70d96e64fc1cffa84ea","abstract_canon_sha256":"f363124a09fca47c4cfc675c55698386ef85d85c02049ca6b586a8b2046f3b7c"},"schema_version":"1.0"},"canonical_sha256":"5632329114297fa2627649d496a50c90b871306af0c3bd2c244e9a3a78c1e146","receipt":{"kind":"pith_receipt","key_id":"pith-v1-2026-05","algorithm":"ed25519","signed_at":"2026-05-18T01:22:43.953903Z","signature_b64":"ICDYjpNI2zTLbeEH3hGwiURGVMjY1LtRRcXzeKgkbCUJ7Jzagq80nazd+Zfx+TiKxYS86YvVuX/aGceYxzVPAw==","signed_message":"canonical_sha256_bytes","builder_version":"pith-number-builder-2026-05-17-v1","receipt_version":"0.3","canonical_sha256":"5632329114297fa2627649d496a50c90b871306af0c3bd2c244e9a3a78c1e146","last_reissued_at":"2026-05-18T01:22:43.953396Z","signature_status":"signed_v1","first_computed_at":"2026-05-18T01:22:43.953396Z","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54"},"source_kind":"arxiv","source_id":"1305.4658","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":"2026-05-18T01:22:43Z","supersedes":[],"prev_event":null,"signature":{"signature_status":"signed_v1","algorithm":"ed25519","key_id":"pith-v1-2026-05","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54","signature_b64":"SXty3Qe1dCLPjOMa1rsSqoH19rGbuPO3Qc9I9NIZdoRxCzMkLZOa/l4swR1B1o+26pR6oXbhlaFc2Tmy9CrnDQ==","signed_message":"open_graph_event_sha256_bytes","signed_at":"2026-05-25T12:01:20.122238Z"},"content_sha256":"d082fdd35e41dbe5598e613152942739e7935f75a434b38dc79b9208b9d36c04","schema_version":"1.0","event_id":"sha256:d082fdd35e41dbe5598e613152942739e7935f75a434b38dc79b9208b9d36c04"},{"event_type":"graph_snapshot","subject_pith_number":"pith:2013:KYZDFEIUFF72EYTWJHKJNJIMSC","target":"graph","payload":{"graph_snapshot":{"paper":{"title":"Feedback control of optical beam spatial profiles using thermal lensing","license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","headline":"","cross_cats":[],"primary_cat":"physics.optics","authors_text":"David B. Tanner, David H. Reitze, Guido Mueller, Luke Williams, Muzammil A. Arain, Paul Fulda, Zhanwei Liu","submitted_at":"2013-05-20T21:03:57Z","abstract_excerpt":"A method for active control of the spatial profile of a laser beam using adaptive thermal lensing is described. A segmented electrical heater was used to generate thermal gradients across a transmissive optical element, resulting in a controllable thermal lens. The segmented heater also allows the generation of cylindrical lenses, and provides the capability to steer the beam in both horizontal and vertical planes. Using this device as an actuator, a feedback control loop was developed to stabilize the beam size and position."},"claims":{"count":0,"items":[],"snapshot_sha256":"258153158e38e3291e3d48162225fcdb2d5a3ed65a07baac614ab91432fd4f57"},"source":{"id":"1305.4658","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":"2026-05-18T01:22:43Z","supersedes":[],"prev_event":null,"signature":{"signature_status":"signed_v1","algorithm":"ed25519","key_id":"pith-v1-2026-05","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54","signature_b64":"lrppX+FOsp2MeYYl61Jbft/VbaM6op09pJD+omoS3/TQKQ3ynrqV+FGtO6GXgYo35+A4iXaCOHZaSCnAYZ90CQ==","signed_message":"open_graph_event_sha256_bytes","signed_at":"2026-05-25T12:01:20.122939Z"},"content_sha256":"8c6b531c458c1c3afce375ff6c0c77f3c1f9f1c0fef5cc7b86cb7318803252d7","schema_version":"1.0","event_id":"sha256:8c6b531c458c1c3afce375ff6c0c77f3c1f9f1c0fef5cc7b86cb7318803252d7"}],"timestamp_proofs":[],"mirror_hints":[{"mirror_type":"https","name":"Pith Resolver","base_url":"https://pith.science","bundle_url":"https://pith.science/pith/KYZDFEIUFF72EYTWJHKJNJIMSC/bundle.json","state_url":"https://pith.science/pith/KYZDFEIUFF72EYTWJHKJNJIMSC/state.json","well_known_bundle_url":"https://pith.science/.well-known/pith/KYZDFEIUFF72EYTWJHKJNJIMSC/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":"2026-05-25T12:01:20Z","links":{"resolver":"https://pith.science/pith/KYZDFEIUFF72EYTWJHKJNJIMSC","bundle":"https://pith.science/pith/KYZDFEIUFF72EYTWJHKJNJIMSC/bundle.json","state":"https://pith.science/pith/KYZDFEIUFF72EYTWJHKJNJIMSC/state.json","well_known_bundle":"https://pith.science/.well-known/pith/KYZDFEIUFF72EYTWJHKJNJIMSC/bundle.json"},"state":{"state_type":"pith_open_graph_state","state_version":"1.0","pith_number":"pith:2013:KYZDFEIUFF72EYTWJHKJNJIMSC","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":"f363124a09fca47c4cfc675c55698386ef85d85c02049ca6b586a8b2046f3b7c","cross_cats_sorted":[],"license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"physics.optics","submitted_at":"2013-05-20T21:03:57Z","title_canon_sha256":"40cd66f68f5702cbdcf3754e5f43d25c4ea56d3766caf70d96e64fc1cffa84ea"},"schema_version":"1.0","source":{"id":"1305.4658","kind":"arxiv","version":1}},"source_aliases":[{"alias_kind":"arxiv","alias_value":"1305.4658","created_at":"2026-05-18T01:22:43Z"},{"alias_kind":"arxiv_version","alias_value":"1305.4658v1","created_at":"2026-05-18T01:22:43Z"},{"alias_kind":"doi","alias_value":"10.48550/arxiv.1305.4658","created_at":"2026-05-18T01:22:43Z"},{"alias_kind":"pith_short_12","alias_value":"KYZDFEIUFF72","created_at":"2026-05-18T12:27:51Z"},{"alias_kind":"pith_short_16","alias_value":"KYZDFEIUFF72EYTW","created_at":"2026-05-18T12:27:51Z"},{"alias_kind":"pith_short_8","alias_value":"KYZDFEIU","created_at":"2026-05-18T12:27:51Z"}],"graph_snapshots":[{"event_id":"sha256:8c6b531c458c1c3afce375ff6c0c77f3c1f9f1c0fef5cc7b86cb7318803252d7","target":"graph","created_at":"2026-05-18T01:22:43Z","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":"A method for active control of the spatial profile of a laser beam using adaptive thermal lensing is described. A segmented electrical heater was used to generate thermal gradients across a transmissive optical element, resulting in a controllable thermal lens. The segmented heater also allows the generation of cylindrical lenses, and provides the capability to steer the beam in both horizontal and vertical planes. Using this device as an actuator, a feedback control loop was developed to stabilize the beam size and position.","authors_text":"David B. Tanner, David H. Reitze, Guido Mueller, Luke Williams, Muzammil A. Arain, Paul Fulda, Zhanwei Liu","cross_cats":[],"headline":"","license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"physics.optics","submitted_at":"2013-05-20T21:03:57Z","title":"Feedback control of optical beam spatial profiles using thermal lensing"},"references":{"count":0,"internal_anchors":0,"resolved_work":0,"sample":[],"snapshot_sha256":"258153158e38e3291e3d48162225fcdb2d5a3ed65a07baac614ab91432fd4f57"},"source":{"id":"1305.4658","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:d082fdd35e41dbe5598e613152942739e7935f75a434b38dc79b9208b9d36c04","target":"record","created_at":"2026-05-18T01:22:43Z","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":"f363124a09fca47c4cfc675c55698386ef85d85c02049ca6b586a8b2046f3b7c","cross_cats_sorted":[],"license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"physics.optics","submitted_at":"2013-05-20T21:03:57Z","title_canon_sha256":"40cd66f68f5702cbdcf3754e5f43d25c4ea56d3766caf70d96e64fc1cffa84ea"},"schema_version":"1.0","source":{"id":"1305.4658","kind":"arxiv","version":1}},"canonical_sha256":"5632329114297fa2627649d496a50c90b871306af0c3bd2c244e9a3a78c1e146","receipt":{"algorithm":"ed25519","builder_version":"pith-number-builder-2026-05-17-v1","canonical_sha256":"5632329114297fa2627649d496a50c90b871306af0c3bd2c244e9a3a78c1e146","first_computed_at":"2026-05-18T01:22:43.953396Z","key_id":"pith-v1-2026-05","kind":"pith_receipt","last_reissued_at":"2026-05-18T01:22:43.953396Z","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54","receipt_version":"0.3","signature_b64":"ICDYjpNI2zTLbeEH3hGwiURGVMjY1LtRRcXzeKgkbCUJ7Jzagq80nazd+Zfx+TiKxYS86YvVuX/aGceYxzVPAw==","signature_status":"signed_v1","signed_at":"2026-05-18T01:22:43.953903Z","signed_message":"canonical_sha256_bytes"},"source_id":"1305.4658","source_kind":"arxiv","source_version":1}}},"equivocations":[],"invalid_events":[],"applied_event_ids":["sha256:d082fdd35e41dbe5598e613152942739e7935f75a434b38dc79b9208b9d36c04","sha256:8c6b531c458c1c3afce375ff6c0c77f3c1f9f1c0fef5cc7b86cb7318803252d7"],"state_sha256":"54fcbd1f44a50f749eeeb9428e355013395ca2d042db327268c060bde87f6f17"},"bundle_signature":{"signature_status":"signed_v1","algorithm":"ed25519","key_id":"pith-v1-2026-05","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54","signature_b64":"K/T3sMuIjgQd+DNB4RWE6vbX6TGzZOcwJsJyOsco2SsYiKHwdlHQltZ+EGox7ZEJo4MGfL0ImlAb2xsZkwaLAw==","signed_message":"bundle_sha256_bytes","signed_at":"2026-05-25T12:01:20.126399Z","bundle_sha256":"13bba96d71a9d9bd77c54d530ff9105e0b1e562f177df25b710ebb1c2a50bc74"}}