{"bundle_type":"pith_open_graph_bundle","bundle_version":"1.0","pith_number":"pith:2016:KZSERPYFIZNLTR7KRMKGLBNUIG","short_pith_number":"pith:KZSERPYF","canonical_record":{"source":{"id":"1602.03517","kind":"arxiv","version":2},"metadata":{"license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"physics.optics","submitted_at":"2016-02-10T20:56:51Z","cross_cats_sorted":[],"title_canon_sha256":"76b6693a94e3bdfa8e2a6b521a430f3beabb05cc316be1063a58e6ed0afb3afe","abstract_canon_sha256":"c705c60d134ba719f7e697a07e77159f03119cc56e49bd799925041caca81849"},"schema_version":"1.0"},"canonical_sha256":"566448bf05465ab9c7ea8b146585b441b677209de96b427d7072eb35b6dd4f3c","source":{"kind":"arxiv","id":"1602.03517","version":2},"source_aliases":[{"alias_kind":"arxiv","alias_value":"1602.03517","created_at":"2026-05-18T01:16:14Z"},{"alias_kind":"arxiv_version","alias_value":"1602.03517v2","created_at":"2026-05-18T01:16:14Z"},{"alias_kind":"doi","alias_value":"10.48550/arxiv.1602.03517","created_at":"2026-05-18T01:16:14Z"},{"alias_kind":"pith_short_12","alias_value":"KZSERPYFIZNL","created_at":"2026-05-18T12:30:29Z"},{"alias_kind":"pith_short_16","alias_value":"KZSERPYFIZNLTR7K","created_at":"2026-05-18T12:30:29Z"},{"alias_kind":"pith_short_8","alias_value":"KZSERPYF","created_at":"2026-05-18T12:30:29Z"}],"events":[{"event_type":"record_created","subject_pith_number":"pith:2016:KZSERPYFIZNLTR7KRMKGLBNUIG","target":"record","payload":{"canonical_record":{"source":{"id":"1602.03517","kind":"arxiv","version":2},"metadata":{"license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"physics.optics","submitted_at":"2016-02-10T20:56:51Z","cross_cats_sorted":[],"title_canon_sha256":"76b6693a94e3bdfa8e2a6b521a430f3beabb05cc316be1063a58e6ed0afb3afe","abstract_canon_sha256":"c705c60d134ba719f7e697a07e77159f03119cc56e49bd799925041caca81849"},"schema_version":"1.0"},"canonical_sha256":"566448bf05465ab9c7ea8b146585b441b677209de96b427d7072eb35b6dd4f3c","receipt":{"kind":"pith_receipt","key_id":"pith-v1-2026-05","algorithm":"ed25519","signed_at":"2026-05-18T01:16:14.184894Z","signature_b64":"UOdJQZm5vFtDDDoFq0SAkIsWja2OQjI3tK1sdQK4kw65aGVPNB1Rbbr/lH8niImIJI6OvWbSIgifzxGA2e5xCw==","signed_message":"canonical_sha256_bytes","builder_version":"pith-number-builder-2026-05-17-v1","receipt_version":"0.3","canonical_sha256":"566448bf05465ab9c7ea8b146585b441b677209de96b427d7072eb35b6dd4f3c","last_reissued_at":"2026-05-18T01:16:14.184208Z","signature_status":"signed_v1","first_computed_at":"2026-05-18T01:16:14.184208Z","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54"},"source_kind":"arxiv","source_id":"1602.03517","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":"2026-05-18T01:16:14Z","supersedes":[],"prev_event":null,"signature":{"signature_status":"signed_v1","algorithm":"ed25519","key_id":"pith-v1-2026-05","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54","signature_b64":"xhSZhZ4i4ggQQywxhTkApaTilGy4IpbnfFOxCt/48h4Qql9xLEz8k5OMDOpka66gQ0jyFCVJeGWFacbU80S6Aw==","signed_message":"open_graph_event_sha256_bytes","signed_at":"2026-05-30T09:04:45.664600Z"},"content_sha256":"55bfe218175f1f307c7d001911a509e89ff269d9b3ecf97051bb291cf2d49c7f","schema_version":"1.0","event_id":"sha256:55bfe218175f1f307c7d001911a509e89ff269d9b3ecf97051bb291cf2d49c7f"},{"event_type":"graph_snapshot","subject_pith_number":"pith:2016:KZSERPYFIZNLTR7KRMKGLBNUIG","target":"graph","payload":{"graph_snapshot":{"paper":{"title":"Frequency comb formation in doubly resonant second-harmonic generation","license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","headline":"","cross_cats":[],"primary_cat":"physics.optics","authors_text":"F. Leo, I. Ricciardi, M. De Rosa, M. Erkintalo, S. Coen, S. Wabnitz, T. Hansson","submitted_at":"2016-02-10T20:56:51Z","abstract_excerpt":"We theoretically study the generation of optical frequency combs and corresponding pulse trains in doubly resonant intracavity second-harmonic generation (SHG). We find that, despite the large temporal walk-off characteristic of realistic cavity systems, the nonlinear dynamics can be accurately and efficiently modelled using a pair of coupled mean-field equations. Through rigorous stability analysis of the system's steady-state continuous wave solutions, we demonstrate that walk-off can give rise to a new, previously unexplored regime of temporal modulation instability (MI). Numerical simulati"},"claims":{"count":0,"items":[],"snapshot_sha256":"258153158e38e3291e3d48162225fcdb2d5a3ed65a07baac614ab91432fd4f57"},"source":{"id":"1602.03517","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":"2026-05-18T01:16:14Z","supersedes":[],"prev_event":null,"signature":{"signature_status":"signed_v1","algorithm":"ed25519","key_id":"pith-v1-2026-05","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54","signature_b64":"Mx0gJ4MiyR3jRiu5NKkT7Elk6FVNpP6sie+ay7VQ7gkWuBSXoipJakmVmQOk/U9i9rskhm+LvVV/LXgFxDi6AA==","signed_message":"open_graph_event_sha256_bytes","signed_at":"2026-05-30T09:04:45.665176Z"},"content_sha256":"745cad5192567c90629aea97b64b3a5912e302b89d2e4d5ea3a422aa5bd88dce","schema_version":"1.0","event_id":"sha256:745cad5192567c90629aea97b64b3a5912e302b89d2e4d5ea3a422aa5bd88dce"}],"timestamp_proofs":[],"mirror_hints":[{"mirror_type":"https","name":"Pith Resolver","base_url":"https://pith.science","bundle_url":"https://pith.science/pith/KZSERPYFIZNLTR7KRMKGLBNUIG/bundle.json","state_url":"https://pith.science/pith/KZSERPYFIZNLTR7KRMKGLBNUIG/state.json","well_known_bundle_url":"https://pith.science/.well-known/pith/KZSERPYFIZNLTR7KRMKGLBNUIG/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":"2026-05-30T09:04:45Z","links":{"resolver":"https://pith.science/pith/KZSERPYFIZNLTR7KRMKGLBNUIG","bundle":"https://pith.science/pith/KZSERPYFIZNLTR7KRMKGLBNUIG/bundle.json","state":"https://pith.science/pith/KZSERPYFIZNLTR7KRMKGLBNUIG/state.json","well_known_bundle":"https://pith.science/.well-known/pith/KZSERPYFIZNLTR7KRMKGLBNUIG/bundle.json"},"state":{"state_type":"pith_open_graph_state","state_version":"1.0","pith_number":"pith:2016:KZSERPYFIZNLTR7KRMKGLBNUIG","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":"c705c60d134ba719f7e697a07e77159f03119cc56e49bd799925041caca81849","cross_cats_sorted":[],"license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"physics.optics","submitted_at":"2016-02-10T20:56:51Z","title_canon_sha256":"76b6693a94e3bdfa8e2a6b521a430f3beabb05cc316be1063a58e6ed0afb3afe"},"schema_version":"1.0","source":{"id":"1602.03517","kind":"arxiv","version":2}},"source_aliases":[{"alias_kind":"arxiv","alias_value":"1602.03517","created_at":"2026-05-18T01:16:14Z"},{"alias_kind":"arxiv_version","alias_value":"1602.03517v2","created_at":"2026-05-18T01:16:14Z"},{"alias_kind":"doi","alias_value":"10.48550/arxiv.1602.03517","created_at":"2026-05-18T01:16:14Z"},{"alias_kind":"pith_short_12","alias_value":"KZSERPYFIZNL","created_at":"2026-05-18T12:30:29Z"},{"alias_kind":"pith_short_16","alias_value":"KZSERPYFIZNLTR7K","created_at":"2026-05-18T12:30:29Z"},{"alias_kind":"pith_short_8","alias_value":"KZSERPYF","created_at":"2026-05-18T12:30:29Z"}],"graph_snapshots":[{"event_id":"sha256:745cad5192567c90629aea97b64b3a5912e302b89d2e4d5ea3a422aa5bd88dce","target":"graph","created_at":"2026-05-18T01:16:14Z","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 theoretically study the generation of optical frequency combs and corresponding pulse trains in doubly resonant intracavity second-harmonic generation (SHG). We find that, despite the large temporal walk-off characteristic of realistic cavity systems, the nonlinear dynamics can be accurately and efficiently modelled using a pair of coupled mean-field equations. Through rigorous stability analysis of the system's steady-state continuous wave solutions, we demonstrate that walk-off can give rise to a new, previously unexplored regime of temporal modulation instability (MI). Numerical simulati","authors_text":"F. Leo, I. Ricciardi, M. De Rosa, M. Erkintalo, S. Coen, S. Wabnitz, T. Hansson","cross_cats":[],"headline":"","license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"physics.optics","submitted_at":"2016-02-10T20:56:51Z","title":"Frequency comb formation in doubly resonant second-harmonic generation"},"references":{"count":0,"internal_anchors":0,"resolved_work":0,"sample":[],"snapshot_sha256":"258153158e38e3291e3d48162225fcdb2d5a3ed65a07baac614ab91432fd4f57"},"source":{"id":"1602.03517","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":"sha256:55bfe218175f1f307c7d001911a509e89ff269d9b3ecf97051bb291cf2d49c7f","target":"record","created_at":"2026-05-18T01:16:14Z","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":"c705c60d134ba719f7e697a07e77159f03119cc56e49bd799925041caca81849","cross_cats_sorted":[],"license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"physics.optics","submitted_at":"2016-02-10T20:56:51Z","title_canon_sha256":"76b6693a94e3bdfa8e2a6b521a430f3beabb05cc316be1063a58e6ed0afb3afe"},"schema_version":"1.0","source":{"id":"1602.03517","kind":"arxiv","version":2}},"canonical_sha256":"566448bf05465ab9c7ea8b146585b441b677209de96b427d7072eb35b6dd4f3c","receipt":{"algorithm":"ed25519","builder_version":"pith-number-builder-2026-05-17-v1","canonical_sha256":"566448bf05465ab9c7ea8b146585b441b677209de96b427d7072eb35b6dd4f3c","first_computed_at":"2026-05-18T01:16:14.184208Z","key_id":"pith-v1-2026-05","kind":"pith_receipt","last_reissued_at":"2026-05-18T01:16:14.184208Z","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54","receipt_version":"0.3","signature_b64":"UOdJQZm5vFtDDDoFq0SAkIsWja2OQjI3tK1sdQK4kw65aGVPNB1Rbbr/lH8niImIJI6OvWbSIgifzxGA2e5xCw==","signature_status":"signed_v1","signed_at":"2026-05-18T01:16:14.184894Z","signed_message":"canonical_sha256_bytes"},"source_id":"1602.03517","source_kind":"arxiv","source_version":2}}},"equivocations":[],"invalid_events":[],"applied_event_ids":["sha256:55bfe218175f1f307c7d001911a509e89ff269d9b3ecf97051bb291cf2d49c7f","sha256:745cad5192567c90629aea97b64b3a5912e302b89d2e4d5ea3a422aa5bd88dce"],"state_sha256":"9eb003ef606b9bfb61d4e6be36177f4468d7d0bd483a1ca82ab9f0bb01c22da7"},"bundle_signature":{"signature_status":"signed_v1","algorithm":"ed25519","key_id":"pith-v1-2026-05","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54","signature_b64":"LOt4LKex4aP1ASR7gOQsKiZC/zNZjhU92dU5urioS0g11GQNZAPg8fZWSdbu7z96j/h82tdLaTGaRGHqoHNpDw==","signed_message":"bundle_sha256_bytes","signed_at":"2026-05-30T09:04:45.668452Z","bundle_sha256":"7fa286ba33ec7a6315ea2764e4d4d7334df482b690e4c0b491ce9eb488b5d7a4"}}