{"bundle_type":"pith_open_graph_bundle","bundle_version":"1.0","pith_number":"pith:2014:K3FITNODOANWNSTKB25OVSTTL6","short_pith_number":"pith:K3FITNOD","canonical_record":{"source":{"id":"1411.2851","kind":"arxiv","version":2},"metadata":{"license":"http://creativecommons.org/licenses/by-nc-sa/3.0/","primary_cat":"physics.optics","submitted_at":"2014-11-11T15:24:44Z","cross_cats_sorted":[],"title_canon_sha256":"8418b89ea1b9f708905b454faddee39a0330072bad80b293ebf2e566360b3b38","abstract_canon_sha256":"3e3600dffa2fd66f04f8ec085b1f56f13c9da9e5cd8a7e371fc7473f10b24e7a"},"schema_version":"1.0"},"canonical_sha256":"56ca89b5c3701b66ca6a0ebaeaca735fba7ed2aeee1968aaf3bbea62da0be572","source":{"kind":"arxiv","id":"1411.2851","version":2},"source_aliases":[{"alias_kind":"arxiv","alias_value":"1411.2851","created_at":"2026-05-18T02:27:07Z"},{"alias_kind":"arxiv_version","alias_value":"1411.2851v2","created_at":"2026-05-18T02:27:07Z"},{"alias_kind":"doi","alias_value":"10.48550/arxiv.1411.2851","created_at":"2026-05-18T02:27:07Z"},{"alias_kind":"pith_short_12","alias_value":"K3FITNODOANW","created_at":"2026-05-18T12:28:35Z"},{"alias_kind":"pith_short_16","alias_value":"K3FITNODOANWNSTK","created_at":"2026-05-18T12:28:35Z"},{"alias_kind":"pith_short_8","alias_value":"K3FITNOD","created_at":"2026-05-18T12:28:35Z"}],"events":[{"event_type":"record_created","subject_pith_number":"pith:2014:K3FITNODOANWNSTKB25OVSTTL6","target":"record","payload":{"canonical_record":{"source":{"id":"1411.2851","kind":"arxiv","version":2},"metadata":{"license":"http://creativecommons.org/licenses/by-nc-sa/3.0/","primary_cat":"physics.optics","submitted_at":"2014-11-11T15:24:44Z","cross_cats_sorted":[],"title_canon_sha256":"8418b89ea1b9f708905b454faddee39a0330072bad80b293ebf2e566360b3b38","abstract_canon_sha256":"3e3600dffa2fd66f04f8ec085b1f56f13c9da9e5cd8a7e371fc7473f10b24e7a"},"schema_version":"1.0"},"canonical_sha256":"56ca89b5c3701b66ca6a0ebaeaca735fba7ed2aeee1968aaf3bbea62da0be572","receipt":{"kind":"pith_receipt","key_id":"pith-v1-2026-05","algorithm":"ed25519","signed_at":"2026-05-18T02:27:07.499936Z","signature_b64":"u7qQYjKvyxUIa0uXp9lJxr+3QbJwYEI9O+UemaYzagKozSDAibVY5O4qx5ofM3OkXlGwvV84OMqW11mrwhjSBw==","signed_message":"canonical_sha256_bytes","builder_version":"pith-number-builder-2026-05-17-v1","receipt_version":"0.3","canonical_sha256":"56ca89b5c3701b66ca6a0ebaeaca735fba7ed2aeee1968aaf3bbea62da0be572","last_reissued_at":"2026-05-18T02:27:07.499049Z","signature_status":"signed_v1","first_computed_at":"2026-05-18T02:27:07.499049Z","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54"},"source_kind":"arxiv","source_id":"1411.2851","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":"2026-05-18T02:27:07Z","supersedes":[],"prev_event":null,"signature":{"signature_status":"signed_v1","algorithm":"ed25519","key_id":"pith-v1-2026-05","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54","signature_b64":"jWhKfP9UwuuRTySF17Ic+AloutcQzBcJ94UrLf5x93DpOgrUt8DNQL4QT65noBnvjkYVOS1MuSZEMYU4YWUcCQ==","signed_message":"open_graph_event_sha256_bytes","signed_at":"2026-05-31T00:09:53.810774Z"},"content_sha256":"2fe75edbb30533e703d13ee2ced925625631a6f4aaf28c4e569a26bedd0a88b1","schema_version":"1.0","event_id":"sha256:2fe75edbb30533e703d13ee2ced925625631a6f4aaf28c4e569a26bedd0a88b1"},{"event_type":"graph_snapshot","subject_pith_number":"pith:2014:K3FITNODOANWNSTKB25OVSTTL6","target":"graph","payload":{"graph_snapshot":{"paper":{"title":"3D mapping of intensity field about the focus of a micrometer scale parabolic mirror","license":"http://creativecommons.org/licenses/by-nc-sa/3.0/","headline":"","cross_cats":[],"primary_cat":"physics.optics","authors_text":"Alison McDonald, David C. Cox, Erling Riis, Gail McConnell, Paul F. Griffin","submitted_at":"2014-11-11T15:24:44Z","abstract_excerpt":"We report on the fabrication and diffraction-limited characterization of parabolic focusing micromirrors. Sub - micron beam waists are measured for mirrors with 10 {\\mu}m radius aperture and measured fixed focal lengths in the range from 24 {\\mu}m to 36 {\\mu}m. Optical characterization of the 3D intensity in the nearfield produced when the device is illuminated with collimated light is performed using a modified confocal microscope. Results are compared directly with angular spectrum simulations, yielding strong agreement between experiment and theory, and identifying the competition between d"},"claims":{"count":0,"items":[],"snapshot_sha256":"258153158e38e3291e3d48162225fcdb2d5a3ed65a07baac614ab91432fd4f57"},"source":{"id":"1411.2851","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":"2026-05-18T02:27:07Z","supersedes":[],"prev_event":null,"signature":{"signature_status":"signed_v1","algorithm":"ed25519","key_id":"pith-v1-2026-05","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54","signature_b64":"0Fp6y/KYF9RDm4w+TlSqqsRfu0ReXYh36EvDXHIK6iiogg62L35xId519fKICZStyrAtzwaJ4AeHtRCRD4LtCA==","signed_message":"open_graph_event_sha256_bytes","signed_at":"2026-05-31T00:09:53.811461Z"},"content_sha256":"6e83ed59c8ca74772f89af062d9a826f79cd76ae2b81e8c98380bcd0c2590e8f","schema_version":"1.0","event_id":"sha256:6e83ed59c8ca74772f89af062d9a826f79cd76ae2b81e8c98380bcd0c2590e8f"}],"timestamp_proofs":[],"mirror_hints":[{"mirror_type":"https","name":"Pith Resolver","base_url":"https://pith.science","bundle_url":"https://pith.science/pith/K3FITNODOANWNSTKB25OVSTTL6/bundle.json","state_url":"https://pith.science/pith/K3FITNODOANWNSTKB25OVSTTL6/state.json","well_known_bundle_url":"https://pith.science/.well-known/pith/K3FITNODOANWNSTKB25OVSTTL6/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":"2026-05-31T00:09:53Z","links":{"resolver":"https://pith.science/pith/K3FITNODOANWNSTKB25OVSTTL6","bundle":"https://pith.science/pith/K3FITNODOANWNSTKB25OVSTTL6/bundle.json","state":"https://pith.science/pith/K3FITNODOANWNSTKB25OVSTTL6/state.json","well_known_bundle":"https://pith.science/.well-known/pith/K3FITNODOANWNSTKB25OVSTTL6/bundle.json"},"state":{"state_type":"pith_open_graph_state","state_version":"1.0","pith_number":"pith:2014:K3FITNODOANWNSTKB25OVSTTL6","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":"3e3600dffa2fd66f04f8ec085b1f56f13c9da9e5cd8a7e371fc7473f10b24e7a","cross_cats_sorted":[],"license":"http://creativecommons.org/licenses/by-nc-sa/3.0/","primary_cat":"physics.optics","submitted_at":"2014-11-11T15:24:44Z","title_canon_sha256":"8418b89ea1b9f708905b454faddee39a0330072bad80b293ebf2e566360b3b38"},"schema_version":"1.0","source":{"id":"1411.2851","kind":"arxiv","version":2}},"source_aliases":[{"alias_kind":"arxiv","alias_value":"1411.2851","created_at":"2026-05-18T02:27:07Z"},{"alias_kind":"arxiv_version","alias_value":"1411.2851v2","created_at":"2026-05-18T02:27:07Z"},{"alias_kind":"doi","alias_value":"10.48550/arxiv.1411.2851","created_at":"2026-05-18T02:27:07Z"},{"alias_kind":"pith_short_12","alias_value":"K3FITNODOANW","created_at":"2026-05-18T12:28:35Z"},{"alias_kind":"pith_short_16","alias_value":"K3FITNODOANWNSTK","created_at":"2026-05-18T12:28:35Z"},{"alias_kind":"pith_short_8","alias_value":"K3FITNOD","created_at":"2026-05-18T12:28:35Z"}],"graph_snapshots":[{"event_id":"sha256:6e83ed59c8ca74772f89af062d9a826f79cd76ae2b81e8c98380bcd0c2590e8f","target":"graph","created_at":"2026-05-18T02:27:07Z","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":"We report on the fabrication and diffraction-limited characterization of parabolic focusing micromirrors. Sub - micron beam waists are measured for mirrors with 10 {\\mu}m radius aperture and measured fixed focal lengths in the range from 24 {\\mu}m to 36 {\\mu}m. Optical characterization of the 3D intensity in the nearfield produced when the device is illuminated with collimated light is performed using a modified confocal microscope. Results are compared directly with angular spectrum simulations, yielding strong agreement between experiment and theory, and identifying the competition between d","authors_text":"Alison McDonald, David C. Cox, Erling Riis, Gail McConnell, Paul F. Griffin","cross_cats":[],"headline":"","license":"http://creativecommons.org/licenses/by-nc-sa/3.0/","primary_cat":"physics.optics","submitted_at":"2014-11-11T15:24:44Z","title":"3D mapping of intensity field about the focus of a micrometer scale parabolic mirror"},"references":{"count":0,"internal_anchors":0,"resolved_work":0,"sample":[],"snapshot_sha256":"258153158e38e3291e3d48162225fcdb2d5a3ed65a07baac614ab91432fd4f57"},"source":{"id":"1411.2851","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":"sha256:2fe75edbb30533e703d13ee2ced925625631a6f4aaf28c4e569a26bedd0a88b1","target":"record","created_at":"2026-05-18T02:27:07Z","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":"3e3600dffa2fd66f04f8ec085b1f56f13c9da9e5cd8a7e371fc7473f10b24e7a","cross_cats_sorted":[],"license":"http://creativecommons.org/licenses/by-nc-sa/3.0/","primary_cat":"physics.optics","submitted_at":"2014-11-11T15:24:44Z","title_canon_sha256":"8418b89ea1b9f708905b454faddee39a0330072bad80b293ebf2e566360b3b38"},"schema_version":"1.0","source":{"id":"1411.2851","kind":"arxiv","version":2}},"canonical_sha256":"56ca89b5c3701b66ca6a0ebaeaca735fba7ed2aeee1968aaf3bbea62da0be572","receipt":{"algorithm":"ed25519","builder_version":"pith-number-builder-2026-05-17-v1","canonical_sha256":"56ca89b5c3701b66ca6a0ebaeaca735fba7ed2aeee1968aaf3bbea62da0be572","first_computed_at":"2026-05-18T02:27:07.499049Z","key_id":"pith-v1-2026-05","kind":"pith_receipt","last_reissued_at":"2026-05-18T02:27:07.499049Z","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54","receipt_version":"0.3","signature_b64":"u7qQYjKvyxUIa0uXp9lJxr+3QbJwYEI9O+UemaYzagKozSDAibVY5O4qx5ofM3OkXlGwvV84OMqW11mrwhjSBw==","signature_status":"signed_v1","signed_at":"2026-05-18T02:27:07.499936Z","signed_message":"canonical_sha256_bytes"},"source_id":"1411.2851","source_kind":"arxiv","source_version":2}}},"equivocations":[],"invalid_events":[],"applied_event_ids":["sha256:2fe75edbb30533e703d13ee2ced925625631a6f4aaf28c4e569a26bedd0a88b1","sha256:6e83ed59c8ca74772f89af062d9a826f79cd76ae2b81e8c98380bcd0c2590e8f"],"state_sha256":"ad87124b012cd3670763d9ede5103e73b53ce97f40a01058766941dcd92ea2ed"},"bundle_signature":{"signature_status":"signed_v1","algorithm":"ed25519","key_id":"pith-v1-2026-05","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54","signature_b64":"AYboY6IIlh5AG4TO/CxeKY8IRxDgyopFcmAITTtWCjeoMZE97YfQYUDa2A9GDPZOT6xrJ35fzuFkj/s+pZQpDg==","signed_message":"bundle_sha256_bytes","signed_at":"2026-05-31T00:09:53.814898Z","bundle_sha256":"8dad2d395f29e1bbb01ba05b6c6c2eb92ac05c4c65c926ac5d050ebee84bb3ae"}}