{"bundle_type":"pith_open_graph_bundle","bundle_version":"1.0","pith_number":"pith:2018:HKRFJJTTZUFU6HGJM4DK3QGF2O","short_pith_number":"pith:HKRFJJTT","canonical_record":{"source":{"id":"1804.10177","kind":"arxiv","version":1},"metadata":{"license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"physics.optics","submitted_at":"2018-04-26T17:19:55Z","cross_cats_sorted":[],"title_canon_sha256":"390a2bef44280caf4da1974c0fc9557a3b5bd99089a0e51b6863e03441b72111","abstract_canon_sha256":"b062f7283644bf37665ab8ccbeefeead4b80a55acb5eee928d405528298fbf0d"},"schema_version":"1.0"},"canonical_sha256":"3aa254a673cd0b4f1cc96706adc0c5d3a993e3833c2d28060b1d34dc62c97123","source":{"kind":"arxiv","id":"1804.10177","version":1},"source_aliases":[{"alias_kind":"arxiv","alias_value":"1804.10177","created_at":"2026-05-18T00:15:13Z"},{"alias_kind":"arxiv_version","alias_value":"1804.10177v1","created_at":"2026-05-18T00:15:13Z"},{"alias_kind":"doi","alias_value":"10.48550/arxiv.1804.10177","created_at":"2026-05-18T00:15:13Z"},{"alias_kind":"pith_short_12","alias_value":"HKRFJJTTZUFU","created_at":"2026-05-18T12:32:28Z"},{"alias_kind":"pith_short_16","alias_value":"HKRFJJTTZUFU6HGJ","created_at":"2026-05-18T12:32:28Z"},{"alias_kind":"pith_short_8","alias_value":"HKRFJJTT","created_at":"2026-05-18T12:32:28Z"}],"events":[{"event_type":"record_created","subject_pith_number":"pith:2018:HKRFJJTTZUFU6HGJM4DK3QGF2O","target":"record","payload":{"canonical_record":{"source":{"id":"1804.10177","kind":"arxiv","version":1},"metadata":{"license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"physics.optics","submitted_at":"2018-04-26T17:19:55Z","cross_cats_sorted":[],"title_canon_sha256":"390a2bef44280caf4da1974c0fc9557a3b5bd99089a0e51b6863e03441b72111","abstract_canon_sha256":"b062f7283644bf37665ab8ccbeefeead4b80a55acb5eee928d405528298fbf0d"},"schema_version":"1.0"},"canonical_sha256":"3aa254a673cd0b4f1cc96706adc0c5d3a993e3833c2d28060b1d34dc62c97123","receipt":{"kind":"pith_receipt","key_id":"pith-v1-2026-05","algorithm":"ed25519","signed_at":"2026-05-18T00:15:13.848405Z","signature_b64":"iRMbmx5z5FNDAKa9CkDnp0dsCN1dElOITTPo5F+vRfj0p6n4Cty4fAgK/LHy0V7mEb/UJQiGBE34ftN6my+bAw==","signed_message":"canonical_sha256_bytes","builder_version":"pith-number-builder-2026-05-17-v1","receipt_version":"0.3","canonical_sha256":"3aa254a673cd0b4f1cc96706adc0c5d3a993e3833c2d28060b1d34dc62c97123","last_reissued_at":"2026-05-18T00:15:13.847877Z","signature_status":"signed_v1","first_computed_at":"2026-05-18T00:15:13.847877Z","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54"},"source_kind":"arxiv","source_id":"1804.10177","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":"2026-05-18T00:15:13Z","supersedes":[],"prev_event":null,"signature":{"signature_status":"signed_v1","algorithm":"ed25519","key_id":"pith-v1-2026-05","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54","signature_b64":"v4dt4olaJAHd3FnwJwrPNSWtbwFCJ3ENNJDASOp5RVcUPIQNGxS77x6Ldja0SFuvMlfaSq80xqe2iy1tWaBxBw==","signed_message":"open_graph_event_sha256_bytes","signed_at":"2026-06-25T18:08:19.834669Z"},"content_sha256":"bbc966d6867b68c370396e97c3a49d5a81a04dd2022a330a15ec89799b164e36","schema_version":"1.0","event_id":"sha256:bbc966d6867b68c370396e97c3a49d5a81a04dd2022a330a15ec89799b164e36"},{"event_type":"graph_snapshot","subject_pith_number":"pith:2018:HKRFJJTTZUFU6HGJM4DK3QGF2O","target":"graph","payload":{"graph_snapshot":{"paper":{"title":"Off-axis digital holography with multiplexed volume Bragg gratings","license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","headline":"","cross_cats":[],"primary_cat":"physics.optics","authors_text":"Jean-Pierre Huignard, Leo Puyo, Michael Atlan","submitted_at":"2018-04-26T17:19:55Z","abstract_excerpt":"We report on an optical imaging design based on common-path off-axis digital holography, using a multiplexed volume Bragg grating. In the reported method, a reference optical wave is made by deflection and spatial filtering through a volume Bragg grating. This design has several advantages including simplicity, stability and robustness against misalignment."},"claims":{"count":0,"items":[],"snapshot_sha256":"258153158e38e3291e3d48162225fcdb2d5a3ed65a07baac614ab91432fd4f57"},"source":{"id":"1804.10177","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":"2026-05-18T00:15:13Z","supersedes":[],"prev_event":null,"signature":{"signature_status":"signed_v1","algorithm":"ed25519","key_id":"pith-v1-2026-05","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54","signature_b64":"B2JbVO2Ds8OT5X6Bt7W8QaTmOtCnYGvAINc3gKBN/uE4qHM/6Des1is8TjOov7Snabqbfh9mze3/WY/BBIXqCA==","signed_message":"open_graph_event_sha256_bytes","signed_at":"2026-06-25T18:08:19.835136Z"},"content_sha256":"625a5f6a655027b8ca59d39f0ea4eb769ed9294eccff7acd9b5f85b93167f024","schema_version":"1.0","event_id":"sha256:625a5f6a655027b8ca59d39f0ea4eb769ed9294eccff7acd9b5f85b93167f024"}],"timestamp_proofs":[],"mirror_hints":[{"mirror_type":"https","name":"Pith Resolver","base_url":"https://pith.science","bundle_url":"https://pith.science/pith/HKRFJJTTZUFU6HGJM4DK3QGF2O/bundle.json","state_url":"https://pith.science/pith/HKRFJJTTZUFU6HGJM4DK3QGF2O/state.json","well_known_bundle_url":"https://pith.science/.well-known/pith/HKRFJJTTZUFU6HGJM4DK3QGF2O/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":"2026-06-25T18:08:19Z","links":{"resolver":"https://pith.science/pith/HKRFJJTTZUFU6HGJM4DK3QGF2O","bundle":"https://pith.science/pith/HKRFJJTTZUFU6HGJM4DK3QGF2O/bundle.json","state":"https://pith.science/pith/HKRFJJTTZUFU6HGJM4DK3QGF2O/state.json","well_known_bundle":"https://pith.science/.well-known/pith/HKRFJJTTZUFU6HGJM4DK3QGF2O/bundle.json"},"state":{"state_type":"pith_open_graph_state","state_version":"1.0","pith_number":"pith:2018:HKRFJJTTZUFU6HGJM4DK3QGF2O","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":"b062f7283644bf37665ab8ccbeefeead4b80a55acb5eee928d405528298fbf0d","cross_cats_sorted":[],"license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"physics.optics","submitted_at":"2018-04-26T17:19:55Z","title_canon_sha256":"390a2bef44280caf4da1974c0fc9557a3b5bd99089a0e51b6863e03441b72111"},"schema_version":"1.0","source":{"id":"1804.10177","kind":"arxiv","version":1}},"source_aliases":[{"alias_kind":"arxiv","alias_value":"1804.10177","created_at":"2026-05-18T00:15:13Z"},{"alias_kind":"arxiv_version","alias_value":"1804.10177v1","created_at":"2026-05-18T00:15:13Z"},{"alias_kind":"doi","alias_value":"10.48550/arxiv.1804.10177","created_at":"2026-05-18T00:15:13Z"},{"alias_kind":"pith_short_12","alias_value":"HKRFJJTTZUFU","created_at":"2026-05-18T12:32:28Z"},{"alias_kind":"pith_short_16","alias_value":"HKRFJJTTZUFU6HGJ","created_at":"2026-05-18T12:32:28Z"},{"alias_kind":"pith_short_8","alias_value":"HKRFJJTT","created_at":"2026-05-18T12:32:28Z"}],"graph_snapshots":[{"event_id":"sha256:625a5f6a655027b8ca59d39f0ea4eb769ed9294eccff7acd9b5f85b93167f024","target":"graph","created_at":"2026-05-18T00:15:13Z","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 an optical imaging design based on common-path off-axis digital holography, using a multiplexed volume Bragg grating. In the reported method, a reference optical wave is made by deflection and spatial filtering through a volume Bragg grating. This design has several advantages including simplicity, stability and robustness against misalignment.","authors_text":"Jean-Pierre Huignard, Leo Puyo, Michael Atlan","cross_cats":[],"headline":"","license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"physics.optics","submitted_at":"2018-04-26T17:19:55Z","title":"Off-axis digital holography with multiplexed volume Bragg gratings"},"references":{"count":0,"internal_anchors":0,"resolved_work":0,"sample":[],"snapshot_sha256":"258153158e38e3291e3d48162225fcdb2d5a3ed65a07baac614ab91432fd4f57"},"source":{"id":"1804.10177","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:bbc966d6867b68c370396e97c3a49d5a81a04dd2022a330a15ec89799b164e36","target":"record","created_at":"2026-05-18T00:15:13Z","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":"b062f7283644bf37665ab8ccbeefeead4b80a55acb5eee928d405528298fbf0d","cross_cats_sorted":[],"license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"physics.optics","submitted_at":"2018-04-26T17:19:55Z","title_canon_sha256":"390a2bef44280caf4da1974c0fc9557a3b5bd99089a0e51b6863e03441b72111"},"schema_version":"1.0","source":{"id":"1804.10177","kind":"arxiv","version":1}},"canonical_sha256":"3aa254a673cd0b4f1cc96706adc0c5d3a993e3833c2d28060b1d34dc62c97123","receipt":{"algorithm":"ed25519","builder_version":"pith-number-builder-2026-05-17-v1","canonical_sha256":"3aa254a673cd0b4f1cc96706adc0c5d3a993e3833c2d28060b1d34dc62c97123","first_computed_at":"2026-05-18T00:15:13.847877Z","key_id":"pith-v1-2026-05","kind":"pith_receipt","last_reissued_at":"2026-05-18T00:15:13.847877Z","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54","receipt_version":"0.3","signature_b64":"iRMbmx5z5FNDAKa9CkDnp0dsCN1dElOITTPo5F+vRfj0p6n4Cty4fAgK/LHy0V7mEb/UJQiGBE34ftN6my+bAw==","signature_status":"signed_v1","signed_at":"2026-05-18T00:15:13.848405Z","signed_message":"canonical_sha256_bytes"},"source_id":"1804.10177","source_kind":"arxiv","source_version":1}}},"equivocations":[],"invalid_events":[],"applied_event_ids":["sha256:bbc966d6867b68c370396e97c3a49d5a81a04dd2022a330a15ec89799b164e36","sha256:625a5f6a655027b8ca59d39f0ea4eb769ed9294eccff7acd9b5f85b93167f024"],"state_sha256":"6d8f7a6a4019f3aaecae22db9946bc5d1c89f1efc8ab1bd5d6ec3024bdd2694e"},"bundle_signature":{"signature_status":"signed_v1","algorithm":"ed25519","key_id":"pith-v1-2026-05","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54","signature_b64":"bjVkRueQ/ql9Z0pPk9OTAZtC8aG6lDOonU5p4sNeBz38qwFqIhLQf5ttCxpYNmZlXWrCnxcLAPh67B+C+kuBBA==","signed_message":"bundle_sha256_bytes","signed_at":"2026-06-25T18:08:19.837449Z","bundle_sha256":"71f7afc374c0b74e185e55add0fd4c1e194f14e9adf1cf479d7cca8333ca809e"}}