{"bundle_type":"pith_open_graph_bundle","bundle_version":"1.0","pith_number":"pith:2017:AALIRZ32DF2MMKR3DM3UG3RXX4","short_pith_number":"pith:AALIRZ32","canonical_record":{"source":{"id":"1703.03277","kind":"arxiv","version":1},"metadata":{"license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"physics.optics","submitted_at":"2017-03-09T14:51:30Z","cross_cats_sorted":[],"title_canon_sha256":"17b88a3e1c790e503f226894a17f02b42c710257c7c7eacf6dda51aaa5202a53","abstract_canon_sha256":"6f26f0e08018ebde5162dad7ceb0585a76bc02e994107145a3e1fd9a630bf3fe"},"schema_version":"1.0"},"canonical_sha256":"001688e77a1974c62a3b1b37436e37bf3dabcffa18236e6c016df59718687a2a","source":{"kind":"arxiv","id":"1703.03277","version":1},"source_aliases":[{"alias_kind":"arxiv","alias_value":"1703.03277","created_at":"2026-05-18T00:16:56Z"},{"alias_kind":"arxiv_version","alias_value":"1703.03277v1","created_at":"2026-05-18T00:16:56Z"},{"alias_kind":"doi","alias_value":"10.48550/arxiv.1703.03277","created_at":"2026-05-18T00:16:56Z"},{"alias_kind":"pith_short_12","alias_value":"AALIRZ32DF2M","created_at":"2026-05-18T12:31:05Z"},{"alias_kind":"pith_short_16","alias_value":"AALIRZ32DF2MMKR3","created_at":"2026-05-18T12:31:05Z"},{"alias_kind":"pith_short_8","alias_value":"AALIRZ32","created_at":"2026-05-18T12:31:05Z"}],"events":[{"event_type":"record_created","subject_pith_number":"pith:2017:AALIRZ32DF2MMKR3DM3UG3RXX4","target":"record","payload":{"canonical_record":{"source":{"id":"1703.03277","kind":"arxiv","version":1},"metadata":{"license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"physics.optics","submitted_at":"2017-03-09T14:51:30Z","cross_cats_sorted":[],"title_canon_sha256":"17b88a3e1c790e503f226894a17f02b42c710257c7c7eacf6dda51aaa5202a53","abstract_canon_sha256":"6f26f0e08018ebde5162dad7ceb0585a76bc02e994107145a3e1fd9a630bf3fe"},"schema_version":"1.0"},"canonical_sha256":"001688e77a1974c62a3b1b37436e37bf3dabcffa18236e6c016df59718687a2a","receipt":{"kind":"pith_receipt","key_id":"pith-v1-2026-05","algorithm":"ed25519","signed_at":"2026-05-18T00:16:56.566638Z","signature_b64":"LpZZdsrgAzDrT3+3HKav0eiZjjbiZhgBtQPW1y9XCKfTONP0eNSVcOi7HnL+SVpanV4cXgst9xSAHyvRyMz7CA==","signed_message":"canonical_sha256_bytes","builder_version":"pith-number-builder-2026-05-17-v1","receipt_version":"0.3","canonical_sha256":"001688e77a1974c62a3b1b37436e37bf3dabcffa18236e6c016df59718687a2a","last_reissued_at":"2026-05-18T00:16:56.566034Z","signature_status":"signed_v1","first_computed_at":"2026-05-18T00:16:56.566034Z","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54"},"source_kind":"arxiv","source_id":"1703.03277","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":"2026-05-18T00:16:56Z","supersedes":[],"prev_event":null,"signature":{"signature_status":"signed_v1","algorithm":"ed25519","key_id":"pith-v1-2026-05","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54","signature_b64":"AMlXN7y9NikGiShY0AwE7St/T8pmBkXiu+r1NW/fLrxfeLTXV0OmWzHN/ZbHblVtP3QiYz9Nhab4KN0a7N+ODA==","signed_message":"open_graph_event_sha256_bytes","signed_at":"2026-06-22T16:18:45.707513Z"},"content_sha256":"b223913e2693d475101a0ea5e3a5fd04665b92fbf671f190ff712453f52a849d","schema_version":"1.0","event_id":"sha256:b223913e2693d475101a0ea5e3a5fd04665b92fbf671f190ff712453f52a849d"},{"event_type":"graph_snapshot","subject_pith_number":"pith:2017:AALIRZ32DF2MMKR3DM3UG3RXX4","target":"graph","payload":{"graph_snapshot":{"paper":{"title":"High-power frequency comb source tunable from 2.7 to 4.2 {\\mu}m based on difference frequency generation pumped by an Yb-doped fiber laser","license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","headline":"","cross_cats":[],"primary_cat":"physics.optics","authors_text":"Aleksandra Foltynowicz, Grzegorz Sobon, Lucile Rutkowski, Pawel Mergo, Tadeusz Martynkien","submitted_at":"2017-03-09T14:51:30Z","abstract_excerpt":"We demonstrate a broadband mid-infrared (MIR) frequency comb source based on difference frequency generation (DFG) in periodically poled lithium niobate (PPLN) crystal. Mid-infrared radiation is obtained via mixing of the output of a 125 MHz repetition rate Yb-doped fiber laser with Raman-shifted solitons generated from the same source in a highly nonlinear fiber. The resulting idler is tunable in the range of 2.7 - 4.2 {\\mu}m with average output power reaching 237 mW, and pulses as short as 115 fs. The coherence of the MIR comb is confirmed by spectral interferometry and heterodyne beat measu"},"claims":{"count":0,"items":[],"snapshot_sha256":"258153158e38e3291e3d48162225fcdb2d5a3ed65a07baac614ab91432fd4f57"},"source":{"id":"1703.03277","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":"2026-05-18T00:16:56Z","supersedes":[],"prev_event":null,"signature":{"signature_status":"signed_v1","algorithm":"ed25519","key_id":"pith-v1-2026-05","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54","signature_b64":"rugIA9r/L/ZXtshaVzyA4rOaKArJnBtOa8ZXfY6RFidVqtGqPTob79mbZkddDIY0CfY81bxUef20DnSFfRAKAg==","signed_message":"open_graph_event_sha256_bytes","signed_at":"2026-06-22T16:18:45.707860Z"},"content_sha256":"c4f061f4632884698f5a050d79240811335e7156fe3e29c5853bf3e72ed95b86","schema_version":"1.0","event_id":"sha256:c4f061f4632884698f5a050d79240811335e7156fe3e29c5853bf3e72ed95b86"}],"timestamp_proofs":[],"mirror_hints":[{"mirror_type":"https","name":"Pith Resolver","base_url":"https://pith.science","bundle_url":"https://pith.science/pith/AALIRZ32DF2MMKR3DM3UG3RXX4/bundle.json","state_url":"https://pith.science/pith/AALIRZ32DF2MMKR3DM3UG3RXX4/state.json","well_known_bundle_url":"https://pith.science/.well-known/pith/AALIRZ32DF2MMKR3DM3UG3RXX4/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":"2026-06-22T16:18:45Z","links":{"resolver":"https://pith.science/pith/AALIRZ32DF2MMKR3DM3UG3RXX4","bundle":"https://pith.science/pith/AALIRZ32DF2MMKR3DM3UG3RXX4/bundle.json","state":"https://pith.science/pith/AALIRZ32DF2MMKR3DM3UG3RXX4/state.json","well_known_bundle":"https://pith.science/.well-known/pith/AALIRZ32DF2MMKR3DM3UG3RXX4/bundle.json"},"state":{"state_type":"pith_open_graph_state","state_version":"1.0","pith_number":"pith:2017:AALIRZ32DF2MMKR3DM3UG3RXX4","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":"6f26f0e08018ebde5162dad7ceb0585a76bc02e994107145a3e1fd9a630bf3fe","cross_cats_sorted":[],"license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"physics.optics","submitted_at":"2017-03-09T14:51:30Z","title_canon_sha256":"17b88a3e1c790e503f226894a17f02b42c710257c7c7eacf6dda51aaa5202a53"},"schema_version":"1.0","source":{"id":"1703.03277","kind":"arxiv","version":1}},"source_aliases":[{"alias_kind":"arxiv","alias_value":"1703.03277","created_at":"2026-05-18T00:16:56Z"},{"alias_kind":"arxiv_version","alias_value":"1703.03277v1","created_at":"2026-05-18T00:16:56Z"},{"alias_kind":"doi","alias_value":"10.48550/arxiv.1703.03277","created_at":"2026-05-18T00:16:56Z"},{"alias_kind":"pith_short_12","alias_value":"AALIRZ32DF2M","created_at":"2026-05-18T12:31:05Z"},{"alias_kind":"pith_short_16","alias_value":"AALIRZ32DF2MMKR3","created_at":"2026-05-18T12:31:05Z"},{"alias_kind":"pith_short_8","alias_value":"AALIRZ32","created_at":"2026-05-18T12:31:05Z"}],"graph_snapshots":[{"event_id":"sha256:c4f061f4632884698f5a050d79240811335e7156fe3e29c5853bf3e72ed95b86","target":"graph","created_at":"2026-05-18T00:16:56Z","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 demonstrate a broadband mid-infrared (MIR) frequency comb source based on difference frequency generation (DFG) in periodically poled lithium niobate (PPLN) crystal. Mid-infrared radiation is obtained via mixing of the output of a 125 MHz repetition rate Yb-doped fiber laser with Raman-shifted solitons generated from the same source in a highly nonlinear fiber. The resulting idler is tunable in the range of 2.7 - 4.2 {\\mu}m with average output power reaching 237 mW, and pulses as short as 115 fs. The coherence of the MIR comb is confirmed by spectral interferometry and heterodyne beat measu","authors_text":"Aleksandra Foltynowicz, Grzegorz Sobon, Lucile Rutkowski, Pawel Mergo, Tadeusz Martynkien","cross_cats":[],"headline":"","license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"physics.optics","submitted_at":"2017-03-09T14:51:30Z","title":"High-power frequency comb source tunable from 2.7 to 4.2 {\\mu}m based on difference frequency generation pumped by an Yb-doped fiber laser"},"references":{"count":0,"internal_anchors":0,"resolved_work":0,"sample":[],"snapshot_sha256":"258153158e38e3291e3d48162225fcdb2d5a3ed65a07baac614ab91432fd4f57"},"source":{"id":"1703.03277","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:b223913e2693d475101a0ea5e3a5fd04665b92fbf671f190ff712453f52a849d","target":"record","created_at":"2026-05-18T00:16:56Z","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":"6f26f0e08018ebde5162dad7ceb0585a76bc02e994107145a3e1fd9a630bf3fe","cross_cats_sorted":[],"license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"physics.optics","submitted_at":"2017-03-09T14:51:30Z","title_canon_sha256":"17b88a3e1c790e503f226894a17f02b42c710257c7c7eacf6dda51aaa5202a53"},"schema_version":"1.0","source":{"id":"1703.03277","kind":"arxiv","version":1}},"canonical_sha256":"001688e77a1974c62a3b1b37436e37bf3dabcffa18236e6c016df59718687a2a","receipt":{"algorithm":"ed25519","builder_version":"pith-number-builder-2026-05-17-v1","canonical_sha256":"001688e77a1974c62a3b1b37436e37bf3dabcffa18236e6c016df59718687a2a","first_computed_at":"2026-05-18T00:16:56.566034Z","key_id":"pith-v1-2026-05","kind":"pith_receipt","last_reissued_at":"2026-05-18T00:16:56.566034Z","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54","receipt_version":"0.3","signature_b64":"LpZZdsrgAzDrT3+3HKav0eiZjjbiZhgBtQPW1y9XCKfTONP0eNSVcOi7HnL+SVpanV4cXgst9xSAHyvRyMz7CA==","signature_status":"signed_v1","signed_at":"2026-05-18T00:16:56.566638Z","signed_message":"canonical_sha256_bytes"},"source_id":"1703.03277","source_kind":"arxiv","source_version":1}}},"equivocations":[],"invalid_events":[],"applied_event_ids":["sha256:b223913e2693d475101a0ea5e3a5fd04665b92fbf671f190ff712453f52a849d","sha256:c4f061f4632884698f5a050d79240811335e7156fe3e29c5853bf3e72ed95b86"],"state_sha256":"0c7fa380b171437ea8be6cd674fe0cc09c2bd191e22471e456ef9bd2b2f707d7"},"bundle_signature":{"signature_status":"signed_v1","algorithm":"ed25519","key_id":"pith-v1-2026-05","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54","signature_b64":"iKZC3Qo/uyZpsnIF383HozgsQLet2I9uAi418WtKLhhn0n97f2ZlX1vvqkWxW27paAWC++UXb9BW1ICAUXmkCg==","signed_message":"bundle_sha256_bytes","signed_at":"2026-06-22T16:18:45.709809Z","bundle_sha256":"f890805750ac7798b80dd1ad02e3944d2d66c806518edc824add62f212dfd16d"}}