{"bundle_type":"pith_open_graph_bundle","bundle_version":"1.0","pith_number":"pith:2017:KXLXQNPICKLTMGPZ3PWL6QHWSU","short_pith_number":"pith:KXLXQNPI","canonical_record":{"source":{"id":"1706.08821","kind":"arxiv","version":2},"metadata":{"license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"astro-ph.IM","submitted_at":"2017-06-27T12:42:33Z","cross_cats_sorted":["physics.optics"],"title_canon_sha256":"60c7949ce0cfce92ab7ffcde4f6562602ed43b51dfe817d2235288b092048890","abstract_canon_sha256":"ee176cfad660b4351df66305f265a3a1f5022b6dd068ec3af9c3787811363cd3"},"schema_version":"1.0"},"canonical_sha256":"55d77835e812973619f9dbecbf40f6951dcdf7be6dcc9b2db0a4f3afe43c14d6","source":{"kind":"arxiv","id":"1706.08821","version":2},"source_aliases":[{"alias_kind":"arxiv","alias_value":"1706.08821","created_at":"2026-05-18T00:36:31Z"},{"alias_kind":"arxiv_version","alias_value":"1706.08821v2","created_at":"2026-05-18T00:36:31Z"},{"alias_kind":"doi","alias_value":"10.48550/arxiv.1706.08821","created_at":"2026-05-18T00:36:31Z"},{"alias_kind":"pith_short_12","alias_value":"KXLXQNPICKLT","created_at":"2026-05-18T12:31:28Z"},{"alias_kind":"pith_short_16","alias_value":"KXLXQNPICKLTMGPZ","created_at":"2026-05-18T12:31:28Z"},{"alias_kind":"pith_short_8","alias_value":"KXLXQNPI","created_at":"2026-05-18T12:31:28Z"}],"events":[{"event_type":"record_created","subject_pith_number":"pith:2017:KXLXQNPICKLTMGPZ3PWL6QHWSU","target":"record","payload":{"canonical_record":{"source":{"id":"1706.08821","kind":"arxiv","version":2},"metadata":{"license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"astro-ph.IM","submitted_at":"2017-06-27T12:42:33Z","cross_cats_sorted":["physics.optics"],"title_canon_sha256":"60c7949ce0cfce92ab7ffcde4f6562602ed43b51dfe817d2235288b092048890","abstract_canon_sha256":"ee176cfad660b4351df66305f265a3a1f5022b6dd068ec3af9c3787811363cd3"},"schema_version":"1.0"},"canonical_sha256":"55d77835e812973619f9dbecbf40f6951dcdf7be6dcc9b2db0a4f3afe43c14d6","receipt":{"kind":"pith_receipt","key_id":"pith-v1-2026-05","algorithm":"ed25519","signed_at":"2026-05-18T00:36:31.085520Z","signature_b64":"ZRwZFvHlAgDbotCnT5iKXiCTDPabhZRh7t5KZ+qYO7J85W+0+MDOu9cn4eVSy+tVnz3J7najpcsd6OcLDutjDQ==","signed_message":"canonical_sha256_bytes","builder_version":"pith-number-builder-2026-05-17-v1","receipt_version":"0.3","canonical_sha256":"55d77835e812973619f9dbecbf40f6951dcdf7be6dcc9b2db0a4f3afe43c14d6","last_reissued_at":"2026-05-18T00:36:31.084795Z","signature_status":"signed_v1","first_computed_at":"2026-05-18T00:36:31.084795Z","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54"},"source_kind":"arxiv","source_id":"1706.08821","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":"2026-05-18T00:36:31Z","supersedes":[],"prev_event":null,"signature":{"signature_status":"signed_v1","algorithm":"ed25519","key_id":"pith-v1-2026-05","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54","signature_b64":"rjGwL5QXjb0QSk0D3kVrx8ggEeWDzJqKotK12IlJnL5DfiMCr8VwxzKP2G7izmyYI7kaEJLp8zv1eD2Ik/G/Ag==","signed_message":"open_graph_event_sha256_bytes","signed_at":"2026-05-25T18:26:01.250395Z"},"content_sha256":"5de8746d8509c269e4336330464d5034ca824693f94bb55a709725b27e079d51","schema_version":"1.0","event_id":"sha256:5de8746d8509c269e4336330464d5034ca824693f94bb55a709725b27e079d51"},{"event_type":"graph_snapshot","subject_pith_number":"pith:2017:KXLXQNPICKLTMGPZ3PWL6QHWSU","target":"graph","payload":{"graph_snapshot":{"paper":{"title":"Efficient injection from large telescopes into single-mode fibres: Enabling the era of ultra-precision astronomy","license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","headline":"","cross_cats":["physics.optics"],"primary_cat":"astro-ph.IM","authors_text":"B. Norris, C. Schwab, D. Doughty, F. Martinache, J. Lozi, N. Cvetojevic, N. Jovanovic, N. Takato, O. Guyon, S. Gross, S. Leon-Saval, T. Currie","submitted_at":"2017-06-27T12:42:33Z","abstract_excerpt":"Photonic technologies offer numerous advantages for astronomical instruments such as spectrographs and interferometers owing to their small footprints and diverse range of functionalities. Operating at the diffraction-limit, it is notoriously difficult to efficiently couple such devices directly with large telescopes. We demonstrate that with careful control of both the non-ideal pupil geometry of a telescope and residual wavefront errors, efficient coupling with single-mode devices can indeed be realised. A fibre injection was built within the Subaru Coronagraphic Extreme Adaptive Optics (SCE"},"claims":{"count":0,"items":[],"snapshot_sha256":"258153158e38e3291e3d48162225fcdb2d5a3ed65a07baac614ab91432fd4f57"},"source":{"id":"1706.08821","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":"2026-05-18T00:36:31Z","supersedes":[],"prev_event":null,"signature":{"signature_status":"signed_v1","algorithm":"ed25519","key_id":"pith-v1-2026-05","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54","signature_b64":"OV/xpTkmITiA9TliQyCPxFm+O52HFhUM0GSoCWAXJwZK45xmCOk+erI9Z/1C6XfjtFjKAKM2DjRkvREC78OADg==","signed_message":"open_graph_event_sha256_bytes","signed_at":"2026-05-25T18:26:01.251089Z"},"content_sha256":"68842433d0fa88ac7f17314adc30d55b5b92c63e5c97cc0c4d085cdc3e787fcf","schema_version":"1.0","event_id":"sha256:68842433d0fa88ac7f17314adc30d55b5b92c63e5c97cc0c4d085cdc3e787fcf"}],"timestamp_proofs":[],"mirror_hints":[{"mirror_type":"https","name":"Pith Resolver","base_url":"https://pith.science","bundle_url":"https://pith.science/pith/KXLXQNPICKLTMGPZ3PWL6QHWSU/bundle.json","state_url":"https://pith.science/pith/KXLXQNPICKLTMGPZ3PWL6QHWSU/state.json","well_known_bundle_url":"https://pith.science/.well-known/pith/KXLXQNPICKLTMGPZ3PWL6QHWSU/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":"2026-05-25T18:26:01Z","links":{"resolver":"https://pith.science/pith/KXLXQNPICKLTMGPZ3PWL6QHWSU","bundle":"https://pith.science/pith/KXLXQNPICKLTMGPZ3PWL6QHWSU/bundle.json","state":"https://pith.science/pith/KXLXQNPICKLTMGPZ3PWL6QHWSU/state.json","well_known_bundle":"https://pith.science/.well-known/pith/KXLXQNPICKLTMGPZ3PWL6QHWSU/bundle.json"},"state":{"state_type":"pith_open_graph_state","state_version":"1.0","pith_number":"pith:2017:KXLXQNPICKLTMGPZ3PWL6QHWSU","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":"ee176cfad660b4351df66305f265a3a1f5022b6dd068ec3af9c3787811363cd3","cross_cats_sorted":["physics.optics"],"license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"astro-ph.IM","submitted_at":"2017-06-27T12:42:33Z","title_canon_sha256":"60c7949ce0cfce92ab7ffcde4f6562602ed43b51dfe817d2235288b092048890"},"schema_version":"1.0","source":{"id":"1706.08821","kind":"arxiv","version":2}},"source_aliases":[{"alias_kind":"arxiv","alias_value":"1706.08821","created_at":"2026-05-18T00:36:31Z"},{"alias_kind":"arxiv_version","alias_value":"1706.08821v2","created_at":"2026-05-18T00:36:31Z"},{"alias_kind":"doi","alias_value":"10.48550/arxiv.1706.08821","created_at":"2026-05-18T00:36:31Z"},{"alias_kind":"pith_short_12","alias_value":"KXLXQNPICKLT","created_at":"2026-05-18T12:31:28Z"},{"alias_kind":"pith_short_16","alias_value":"KXLXQNPICKLTMGPZ","created_at":"2026-05-18T12:31:28Z"},{"alias_kind":"pith_short_8","alias_value":"KXLXQNPI","created_at":"2026-05-18T12:31:28Z"}],"graph_snapshots":[{"event_id":"sha256:68842433d0fa88ac7f17314adc30d55b5b92c63e5c97cc0c4d085cdc3e787fcf","target":"graph","created_at":"2026-05-18T00:36:31Z","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":"Photonic technologies offer numerous advantages for astronomical instruments such as spectrographs and interferometers owing to their small footprints and diverse range of functionalities. Operating at the diffraction-limit, it is notoriously difficult to efficiently couple such devices directly with large telescopes. We demonstrate that with careful control of both the non-ideal pupil geometry of a telescope and residual wavefront errors, efficient coupling with single-mode devices can indeed be realised. A fibre injection was built within the Subaru Coronagraphic Extreme Adaptive Optics (SCE","authors_text":"B. Norris, C. Schwab, D. Doughty, F. Martinache, J. Lozi, N. Cvetojevic, N. Jovanovic, N. Takato, O. Guyon, S. Gross, S. Leon-Saval, T. Currie","cross_cats":["physics.optics"],"headline":"","license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"astro-ph.IM","submitted_at":"2017-06-27T12:42:33Z","title":"Efficient injection from large telescopes into single-mode fibres: Enabling the era of ultra-precision astronomy"},"references":{"count":0,"internal_anchors":0,"resolved_work":0,"sample":[],"snapshot_sha256":"258153158e38e3291e3d48162225fcdb2d5a3ed65a07baac614ab91432fd4f57"},"source":{"id":"1706.08821","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":"sha256:5de8746d8509c269e4336330464d5034ca824693f94bb55a709725b27e079d51","target":"record","created_at":"2026-05-18T00:36:31Z","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":"ee176cfad660b4351df66305f265a3a1f5022b6dd068ec3af9c3787811363cd3","cross_cats_sorted":["physics.optics"],"license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"astro-ph.IM","submitted_at":"2017-06-27T12:42:33Z","title_canon_sha256":"60c7949ce0cfce92ab7ffcde4f6562602ed43b51dfe817d2235288b092048890"},"schema_version":"1.0","source":{"id":"1706.08821","kind":"arxiv","version":2}},"canonical_sha256":"55d77835e812973619f9dbecbf40f6951dcdf7be6dcc9b2db0a4f3afe43c14d6","receipt":{"algorithm":"ed25519","builder_version":"pith-number-builder-2026-05-17-v1","canonical_sha256":"55d77835e812973619f9dbecbf40f6951dcdf7be6dcc9b2db0a4f3afe43c14d6","first_computed_at":"2026-05-18T00:36:31.084795Z","key_id":"pith-v1-2026-05","kind":"pith_receipt","last_reissued_at":"2026-05-18T00:36:31.084795Z","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54","receipt_version":"0.3","signature_b64":"ZRwZFvHlAgDbotCnT5iKXiCTDPabhZRh7t5KZ+qYO7J85W+0+MDOu9cn4eVSy+tVnz3J7najpcsd6OcLDutjDQ==","signature_status":"signed_v1","signed_at":"2026-05-18T00:36:31.085520Z","signed_message":"canonical_sha256_bytes"},"source_id":"1706.08821","source_kind":"arxiv","source_version":2}}},"equivocations":[],"invalid_events":[],"applied_event_ids":["sha256:5de8746d8509c269e4336330464d5034ca824693f94bb55a709725b27e079d51","sha256:68842433d0fa88ac7f17314adc30d55b5b92c63e5c97cc0c4d085cdc3e787fcf"],"state_sha256":"b6022a06f62716623ab1c5398e1b22a9a0ff32c6e5c630812f51515a4f76f5a8"},"bundle_signature":{"signature_status":"signed_v1","algorithm":"ed25519","key_id":"pith-v1-2026-05","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54","signature_b64":"T3bGhdYBg3bAiK7fnjsiqMjsFpA+sbaYRU3BOE2vILgBHpIbYyI2y/vqVKG+s6uk/HfhYNPKU2+ahAtiSYjrCw==","signed_message":"bundle_sha256_bytes","signed_at":"2026-05-25T18:26:01.254700Z","bundle_sha256":"114e5cd9ade64718870e577c568f15d251199b64d9c760aec7b4693f60cd6289"}}