{"bundle_type":"pith_open_graph_bundle","bundle_version":"1.0","pith_number":"pith:2017:OINXZ5UDJF6YE5PWY6TRWJ4S6Q","short_pith_number":"pith:OINXZ5UD","canonical_record":{"source":{"id":"1709.06795","kind":"arxiv","version":1},"metadata":{"license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"nlin.CD","submitted_at":"2017-09-20T10:07:57Z","cross_cats_sorted":[],"title_canon_sha256":"3c19c27926db48f7a2ced1891eb6ea6afa18100a1fad9ea9f64fd6ab910aba67","abstract_canon_sha256":"fe300f76a9a993fefe0df01d115dceab3a39e313614c1298f6a71bda43d5d03c"},"schema_version":"1.0"},"canonical_sha256":"721b7cf683497d8275f6c7a71b2792f41bcaa618f8e56c9d684dcb3f89b5f630","source":{"kind":"arxiv","id":"1709.06795","version":1},"source_aliases":[{"alias_kind":"arxiv","alias_value":"1709.06795","created_at":"2026-05-18T00:34:40Z"},{"alias_kind":"arxiv_version","alias_value":"1709.06795v1","created_at":"2026-05-18T00:34:40Z"},{"alias_kind":"doi","alias_value":"10.48550/arxiv.1709.06795","created_at":"2026-05-18T00:34:40Z"},{"alias_kind":"pith_short_12","alias_value":"OINXZ5UDJF6Y","created_at":"2026-05-18T12:31:34Z"},{"alias_kind":"pith_short_16","alias_value":"OINXZ5UDJF6YE5PW","created_at":"2026-05-18T12:31:34Z"},{"alias_kind":"pith_short_8","alias_value":"OINXZ5UD","created_at":"2026-05-18T12:31:34Z"}],"events":[{"event_type":"record_created","subject_pith_number":"pith:2017:OINXZ5UDJF6YE5PWY6TRWJ4S6Q","target":"record","payload":{"canonical_record":{"source":{"id":"1709.06795","kind":"arxiv","version":1},"metadata":{"license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"nlin.CD","submitted_at":"2017-09-20T10:07:57Z","cross_cats_sorted":[],"title_canon_sha256":"3c19c27926db48f7a2ced1891eb6ea6afa18100a1fad9ea9f64fd6ab910aba67","abstract_canon_sha256":"fe300f76a9a993fefe0df01d115dceab3a39e313614c1298f6a71bda43d5d03c"},"schema_version":"1.0"},"canonical_sha256":"721b7cf683497d8275f6c7a71b2792f41bcaa618f8e56c9d684dcb3f89b5f630","receipt":{"kind":"pith_receipt","key_id":"pith-v1-2026-05","algorithm":"ed25519","signed_at":"2026-05-18T00:34:40.433947Z","signature_b64":"WklpmAsvIbUoPJkiBHNv9FODzLgCO1Tmzql4vRrE+lIw0xi1R2kqAVc+H9MqjdqFQ+4bAe/5mqlppuIcBBJ+DA==","signed_message":"canonical_sha256_bytes","builder_version":"pith-number-builder-2026-05-17-v1","receipt_version":"0.3","canonical_sha256":"721b7cf683497d8275f6c7a71b2792f41bcaa618f8e56c9d684dcb3f89b5f630","last_reissued_at":"2026-05-18T00:34:40.433326Z","signature_status":"signed_v1","first_computed_at":"2026-05-18T00:34:40.433326Z","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54"},"source_kind":"arxiv","source_id":"1709.06795","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":"2026-05-18T00:34:40Z","supersedes":[],"prev_event":null,"signature":{"signature_status":"signed_v1","algorithm":"ed25519","key_id":"pith-v1-2026-05","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54","signature_b64":"rM5xF9iSvXac/zTvxOUBVqI/SDnZh+7g4+ZOVkri/bOnef+eZN2Xx2Bswej6RDu2vRZvOUtLh92550sgaUNeBA==","signed_message":"open_graph_event_sha256_bytes","signed_at":"2026-06-09T18:01:56.661364Z"},"content_sha256":"8d0b8cef4cca6f8795696deb1b37ca09ba8593fa2bb9eeaa9868824d30cd26c5","schema_version":"1.0","event_id":"sha256:8d0b8cef4cca6f8795696deb1b37ca09ba8593fa2bb9eeaa9868824d30cd26c5"},{"event_type":"graph_snapshot","subject_pith_number":"pith:2017:OINXZ5UDJF6YE5PWY6TRWJ4S6Q","target":"graph","payload":{"graph_snapshot":{"paper":{"title":"Visualizing the Phase-Space Dynamics of an External Cavity Semiconductor Laser","license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","headline":"","cross_cats":[],"primary_cat":"nlin.CD","authors_text":"A. Locquet, A. Martinez, C. Y. Chang, Daeyoung Choi, D. S. Citrin, Francois Lelarge, K. Merghem, Michael J. Wishon","submitted_at":"2017-09-20T10:07:57Z","abstract_excerpt":"We map the phase-space trajectories of an external-cavity semiconductor laser using phase portraits. This is both a visualization tool as well as a thoroughly quantitative approach enabling unprecedented insight into the dynamical regimes, from continuous-wave through coherence collapse as feedback is increased. Namely, the phase portraits in the intensity versus laser-diode terminal-voltage (serving as a surrogate for inversion) plane are mapped out. We observe a route to chaos interrupted by two types of limit cycles, a subharmonic regime and period-doubled dynamics at the edge of chaos. The"},"claims":{"count":0,"items":[],"snapshot_sha256":"258153158e38e3291e3d48162225fcdb2d5a3ed65a07baac614ab91432fd4f57"},"source":{"id":"1709.06795","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":"2026-05-18T00:34:40Z","supersedes":[],"prev_event":null,"signature":{"signature_status":"signed_v1","algorithm":"ed25519","key_id":"pith-v1-2026-05","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54","signature_b64":"q3U7pC4NNyofSAl9sokziVTfxxQs1r5gsILaIdU3fTTSsqCJoTLRlMyy9CXS4/4p9mx1p478OAxFkOOGrYaYCQ==","signed_message":"open_graph_event_sha256_bytes","signed_at":"2026-06-09T18:01:56.661718Z"},"content_sha256":"2cac02d09f7ef721cb5200303180670bc96a40a66f193f44679ae09ac21b74d8","schema_version":"1.0","event_id":"sha256:2cac02d09f7ef721cb5200303180670bc96a40a66f193f44679ae09ac21b74d8"}],"timestamp_proofs":[],"mirror_hints":[{"mirror_type":"https","name":"Pith Resolver","base_url":"https://pith.science","bundle_url":"https://pith.science/pith/OINXZ5UDJF6YE5PWY6TRWJ4S6Q/bundle.json","state_url":"https://pith.science/pith/OINXZ5UDJF6YE5PWY6TRWJ4S6Q/state.json","well_known_bundle_url":"https://pith.science/.well-known/pith/OINXZ5UDJF6YE5PWY6TRWJ4S6Q/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":"2026-06-09T18:01:56Z","links":{"resolver":"https://pith.science/pith/OINXZ5UDJF6YE5PWY6TRWJ4S6Q","bundle":"https://pith.science/pith/OINXZ5UDJF6YE5PWY6TRWJ4S6Q/bundle.json","state":"https://pith.science/pith/OINXZ5UDJF6YE5PWY6TRWJ4S6Q/state.json","well_known_bundle":"https://pith.science/.well-known/pith/OINXZ5UDJF6YE5PWY6TRWJ4S6Q/bundle.json"},"state":{"state_type":"pith_open_graph_state","state_version":"1.0","pith_number":"pith:2017:OINXZ5UDJF6YE5PWY6TRWJ4S6Q","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":"fe300f76a9a993fefe0df01d115dceab3a39e313614c1298f6a71bda43d5d03c","cross_cats_sorted":[],"license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"nlin.CD","submitted_at":"2017-09-20T10:07:57Z","title_canon_sha256":"3c19c27926db48f7a2ced1891eb6ea6afa18100a1fad9ea9f64fd6ab910aba67"},"schema_version":"1.0","source":{"id":"1709.06795","kind":"arxiv","version":1}},"source_aliases":[{"alias_kind":"arxiv","alias_value":"1709.06795","created_at":"2026-05-18T00:34:40Z"},{"alias_kind":"arxiv_version","alias_value":"1709.06795v1","created_at":"2026-05-18T00:34:40Z"},{"alias_kind":"doi","alias_value":"10.48550/arxiv.1709.06795","created_at":"2026-05-18T00:34:40Z"},{"alias_kind":"pith_short_12","alias_value":"OINXZ5UDJF6Y","created_at":"2026-05-18T12:31:34Z"},{"alias_kind":"pith_short_16","alias_value":"OINXZ5UDJF6YE5PW","created_at":"2026-05-18T12:31:34Z"},{"alias_kind":"pith_short_8","alias_value":"OINXZ5UD","created_at":"2026-05-18T12:31:34Z"}],"graph_snapshots":[{"event_id":"sha256:2cac02d09f7ef721cb5200303180670bc96a40a66f193f44679ae09ac21b74d8","target":"graph","created_at":"2026-05-18T00:34:40Z","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 map the phase-space trajectories of an external-cavity semiconductor laser using phase portraits. This is both a visualization tool as well as a thoroughly quantitative approach enabling unprecedented insight into the dynamical regimes, from continuous-wave through coherence collapse as feedback is increased. Namely, the phase portraits in the intensity versus laser-diode terminal-voltage (serving as a surrogate for inversion) plane are mapped out. We observe a route to chaos interrupted by two types of limit cycles, a subharmonic regime and period-doubled dynamics at the edge of chaos. The","authors_text":"A. Locquet, A. Martinez, C. Y. Chang, Daeyoung Choi, D. S. Citrin, Francois Lelarge, K. Merghem, Michael J. Wishon","cross_cats":[],"headline":"","license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"nlin.CD","submitted_at":"2017-09-20T10:07:57Z","title":"Visualizing the Phase-Space Dynamics of an External Cavity Semiconductor Laser"},"references":{"count":0,"internal_anchors":0,"resolved_work":0,"sample":[],"snapshot_sha256":"258153158e38e3291e3d48162225fcdb2d5a3ed65a07baac614ab91432fd4f57"},"source":{"id":"1709.06795","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":"sha256:8d0b8cef4cca6f8795696deb1b37ca09ba8593fa2bb9eeaa9868824d30cd26c5","target":"record","created_at":"2026-05-18T00:34:40Z","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":"fe300f76a9a993fefe0df01d115dceab3a39e313614c1298f6a71bda43d5d03c","cross_cats_sorted":[],"license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"nlin.CD","submitted_at":"2017-09-20T10:07:57Z","title_canon_sha256":"3c19c27926db48f7a2ced1891eb6ea6afa18100a1fad9ea9f64fd6ab910aba67"},"schema_version":"1.0","source":{"id":"1709.06795","kind":"arxiv","version":1}},"canonical_sha256":"721b7cf683497d8275f6c7a71b2792f41bcaa618f8e56c9d684dcb3f89b5f630","receipt":{"algorithm":"ed25519","builder_version":"pith-number-builder-2026-05-17-v1","canonical_sha256":"721b7cf683497d8275f6c7a71b2792f41bcaa618f8e56c9d684dcb3f89b5f630","first_computed_at":"2026-05-18T00:34:40.433326Z","key_id":"pith-v1-2026-05","kind":"pith_receipt","last_reissued_at":"2026-05-18T00:34:40.433326Z","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54","receipt_version":"0.3","signature_b64":"WklpmAsvIbUoPJkiBHNv9FODzLgCO1Tmzql4vRrE+lIw0xi1R2kqAVc+H9MqjdqFQ+4bAe/5mqlppuIcBBJ+DA==","signature_status":"signed_v1","signed_at":"2026-05-18T00:34:40.433947Z","signed_message":"canonical_sha256_bytes"},"source_id":"1709.06795","source_kind":"arxiv","source_version":1}}},"equivocations":[],"invalid_events":[],"applied_event_ids":["sha256:8d0b8cef4cca6f8795696deb1b37ca09ba8593fa2bb9eeaa9868824d30cd26c5","sha256:2cac02d09f7ef721cb5200303180670bc96a40a66f193f44679ae09ac21b74d8"],"state_sha256":"d5a2fe2de1e71d810abd0a2859c1978e4c65d49f6b9f845c3cb17f924fad7a35"},"bundle_signature":{"signature_status":"signed_v1","algorithm":"ed25519","key_id":"pith-v1-2026-05","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54","signature_b64":"TvzflbF56YZIL3/hA/9AptHyzk9Bd7x2DoXJaVe42TXECRvD45rlEV+XqSS5WRa/slDUSW4hBFt7FPOQgPD/DQ==","signed_message":"bundle_sha256_bytes","signed_at":"2026-06-09T18:01:56.663621Z","bundle_sha256":"674871e2684adbef13300427e2d7514acab0d0e1da03d20350af565d6d868888"}}