{"bundle_type":"pith_open_graph_bundle","bundle_version":"1.0","pith_number":"pith:2012:MHM3NERE42UU3A3KRJPQ5Q277M","short_pith_number":"pith:MHM3NERE","canonical_record":{"source":{"id":"1212.0363","kind":"arxiv","version":1},"metadata":{"license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"physics.optics","submitted_at":"2012-12-03T12:34:32Z","cross_cats_sorted":[],"title_canon_sha256":"949fea01abb6d08a644927d906fe51e2211d7a984f34ba1f1675297d1e5f2510","abstract_canon_sha256":"6c6d42b98ac54ed973fbe19997ad3ceca5f2827388e857d527dcabfe738207e2"},"schema_version":"1.0"},"canonical_sha256":"61d9b69224e6a94d836a8a5f0ec35ffb32ce9763114afc0434f3c17f520202a2","source":{"kind":"arxiv","id":"1212.0363","version":1},"source_aliases":[{"alias_kind":"arxiv","alias_value":"1212.0363","created_at":"2026-05-18T01:52:48Z"},{"alias_kind":"arxiv_version","alias_value":"1212.0363v1","created_at":"2026-05-18T01:52:48Z"},{"alias_kind":"doi","alias_value":"10.48550/arxiv.1212.0363","created_at":"2026-05-18T01:52:48Z"},{"alias_kind":"pith_short_12","alias_value":"MHM3NERE42UU","created_at":"2026-05-18T12:27:14Z"},{"alias_kind":"pith_short_16","alias_value":"MHM3NERE42UU3A3K","created_at":"2026-05-18T12:27:14Z"},{"alias_kind":"pith_short_8","alias_value":"MHM3NERE","created_at":"2026-05-18T12:27:14Z"}],"events":[{"event_type":"record_created","subject_pith_number":"pith:2012:MHM3NERE42UU3A3KRJPQ5Q277M","target":"record","payload":{"canonical_record":{"source":{"id":"1212.0363","kind":"arxiv","version":1},"metadata":{"license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"physics.optics","submitted_at":"2012-12-03T12:34:32Z","cross_cats_sorted":[],"title_canon_sha256":"949fea01abb6d08a644927d906fe51e2211d7a984f34ba1f1675297d1e5f2510","abstract_canon_sha256":"6c6d42b98ac54ed973fbe19997ad3ceca5f2827388e857d527dcabfe738207e2"},"schema_version":"1.0"},"canonical_sha256":"61d9b69224e6a94d836a8a5f0ec35ffb32ce9763114afc0434f3c17f520202a2","receipt":{"kind":"pith_receipt","key_id":"pith-v1-2026-05","algorithm":"ed25519","signed_at":"2026-05-18T01:52:48.403567Z","signature_b64":"2N2n9u5/IzQ0hVZRgwbuFJYfB5Rclz69iHYK6WJRR+65MZweNFO840uUFvNgHFuxzof8fG2WmN2RCdnsPQrtDg==","signed_message":"canonical_sha256_bytes","builder_version":"pith-number-builder-2026-05-17-v1","receipt_version":"0.3","canonical_sha256":"61d9b69224e6a94d836a8a5f0ec35ffb32ce9763114afc0434f3c17f520202a2","last_reissued_at":"2026-05-18T01:52:48.403071Z","signature_status":"signed_v1","first_computed_at":"2026-05-18T01:52:48.403071Z","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54"},"source_kind":"arxiv","source_id":"1212.0363","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":"2026-05-18T01:52:48Z","supersedes":[],"prev_event":null,"signature":{"signature_status":"signed_v1","algorithm":"ed25519","key_id":"pith-v1-2026-05","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54","signature_b64":"UZbpOhxEiphM0UYc7cCgMmEOoZkjNP41fdybB+uVfjmVEp3iZ4dA+q5t9MYyE9lVALkRxaWt6pZWIQiLeax+Dg==","signed_message":"open_graph_event_sha256_bytes","signed_at":"2026-06-05T06:40:02.128201Z"},"content_sha256":"d553c9ad6dc4dbf0bc9a743d3c783546f255db9afd5fa0a39f3d740b8403e6e0","schema_version":"1.0","event_id":"sha256:d553c9ad6dc4dbf0bc9a743d3c783546f255db9afd5fa0a39f3d740b8403e6e0"},{"event_type":"graph_snapshot","subject_pith_number":"pith:2012:MHM3NERE42UU3A3KRJPQ5Q277M","target":"graph","payload":{"graph_snapshot":{"paper":{"title":"Watt-level ultrahigh-OSNR single-longitudinal-mode tunable Brillouin fiber laser","license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","headline":"","cross_cats":[],"primary_cat":"physics.optics","authors_text":"Gaomeng Wang, Jinmei Liu, Jun Li, Junsong Peng, Liang Zhang, Lilin Yi, Li Zhan, Tao Zhang","submitted_at":"2012-12-03T12:34:32Z","abstract_excerpt":"A watt-level ultrahigh optical signal-to-noise ratio (OSNR) single-longitudinal-mode (SLM) tunable Brillouin fiber laser (BFL) has been demonstrated.By optimizing the length of the single mode fiber (SMF) cavity at 11m and its output ratio at sixty percent, 1.04 W output power, as well as stable SLM operation is obtained at 2.24 W pump power. The single pass cavity BFL has the advantage that Brillouin pump frequency doesn't need to match the cavity mode, thus the stability is greatly improved. As only SMF is used in the cavity, the operate wavelength can be tunable without the restriction from"},"claims":{"count":0,"items":[],"snapshot_sha256":"258153158e38e3291e3d48162225fcdb2d5a3ed65a07baac614ab91432fd4f57"},"source":{"id":"1212.0363","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":"2026-05-18T01:52:48Z","supersedes":[],"prev_event":null,"signature":{"signature_status":"signed_v1","algorithm":"ed25519","key_id":"pith-v1-2026-05","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54","signature_b64":"okx/S5fb+SQv9r3D9yLsUbwS5cEEC2N8U12trB6NqnBCZ6gvUXZS7RIlb4b5ZaI1eDkd/+c3iqml8TJzcdfNAw==","signed_message":"open_graph_event_sha256_bytes","signed_at":"2026-06-05T06:40:02.128841Z"},"content_sha256":"304de3c80ba11f44537e09e34fac9c5cbda03c3da88a0f8de69758bb061863b0","schema_version":"1.0","event_id":"sha256:304de3c80ba11f44537e09e34fac9c5cbda03c3da88a0f8de69758bb061863b0"}],"timestamp_proofs":[],"mirror_hints":[{"mirror_type":"https","name":"Pith Resolver","base_url":"https://pith.science","bundle_url":"https://pith.science/pith/MHM3NERE42UU3A3KRJPQ5Q277M/bundle.json","state_url":"https://pith.science/pith/MHM3NERE42UU3A3KRJPQ5Q277M/state.json","well_known_bundle_url":"https://pith.science/.well-known/pith/MHM3NERE42UU3A3KRJPQ5Q277M/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":"2026-06-05T06:40:02Z","links":{"resolver":"https://pith.science/pith/MHM3NERE42UU3A3KRJPQ5Q277M","bundle":"https://pith.science/pith/MHM3NERE42UU3A3KRJPQ5Q277M/bundle.json","state":"https://pith.science/pith/MHM3NERE42UU3A3KRJPQ5Q277M/state.json","well_known_bundle":"https://pith.science/.well-known/pith/MHM3NERE42UU3A3KRJPQ5Q277M/bundle.json"},"state":{"state_type":"pith_open_graph_state","state_version":"1.0","pith_number":"pith:2012:MHM3NERE42UU3A3KRJPQ5Q277M","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":"6c6d42b98ac54ed973fbe19997ad3ceca5f2827388e857d527dcabfe738207e2","cross_cats_sorted":[],"license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"physics.optics","submitted_at":"2012-12-03T12:34:32Z","title_canon_sha256":"949fea01abb6d08a644927d906fe51e2211d7a984f34ba1f1675297d1e5f2510"},"schema_version":"1.0","source":{"id":"1212.0363","kind":"arxiv","version":1}},"source_aliases":[{"alias_kind":"arxiv","alias_value":"1212.0363","created_at":"2026-05-18T01:52:48Z"},{"alias_kind":"arxiv_version","alias_value":"1212.0363v1","created_at":"2026-05-18T01:52:48Z"},{"alias_kind":"doi","alias_value":"10.48550/arxiv.1212.0363","created_at":"2026-05-18T01:52:48Z"},{"alias_kind":"pith_short_12","alias_value":"MHM3NERE42UU","created_at":"2026-05-18T12:27:14Z"},{"alias_kind":"pith_short_16","alias_value":"MHM3NERE42UU3A3K","created_at":"2026-05-18T12:27:14Z"},{"alias_kind":"pith_short_8","alias_value":"MHM3NERE","created_at":"2026-05-18T12:27:14Z"}],"graph_snapshots":[{"event_id":"sha256:304de3c80ba11f44537e09e34fac9c5cbda03c3da88a0f8de69758bb061863b0","target":"graph","created_at":"2026-05-18T01:52:48Z","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":"A watt-level ultrahigh optical signal-to-noise ratio (OSNR) single-longitudinal-mode (SLM) tunable Brillouin fiber laser (BFL) has been demonstrated.By optimizing the length of the single mode fiber (SMF) cavity at 11m and its output ratio at sixty percent, 1.04 W output power, as well as stable SLM operation is obtained at 2.24 W pump power. The single pass cavity BFL has the advantage that Brillouin pump frequency doesn't need to match the cavity mode, thus the stability is greatly improved. As only SMF is used in the cavity, the operate wavelength can be tunable without the restriction from","authors_text":"Gaomeng Wang, Jinmei Liu, Jun Li, Junsong Peng, Liang Zhang, Lilin Yi, Li Zhan, Tao Zhang","cross_cats":[],"headline":"","license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"physics.optics","submitted_at":"2012-12-03T12:34:32Z","title":"Watt-level ultrahigh-OSNR single-longitudinal-mode tunable Brillouin fiber laser"},"references":{"count":0,"internal_anchors":0,"resolved_work":0,"sample":[],"snapshot_sha256":"258153158e38e3291e3d48162225fcdb2d5a3ed65a07baac614ab91432fd4f57"},"source":{"id":"1212.0363","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:d553c9ad6dc4dbf0bc9a743d3c783546f255db9afd5fa0a39f3d740b8403e6e0","target":"record","created_at":"2026-05-18T01:52:48Z","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":"6c6d42b98ac54ed973fbe19997ad3ceca5f2827388e857d527dcabfe738207e2","cross_cats_sorted":[],"license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"physics.optics","submitted_at":"2012-12-03T12:34:32Z","title_canon_sha256":"949fea01abb6d08a644927d906fe51e2211d7a984f34ba1f1675297d1e5f2510"},"schema_version":"1.0","source":{"id":"1212.0363","kind":"arxiv","version":1}},"canonical_sha256":"61d9b69224e6a94d836a8a5f0ec35ffb32ce9763114afc0434f3c17f520202a2","receipt":{"algorithm":"ed25519","builder_version":"pith-number-builder-2026-05-17-v1","canonical_sha256":"61d9b69224e6a94d836a8a5f0ec35ffb32ce9763114afc0434f3c17f520202a2","first_computed_at":"2026-05-18T01:52:48.403071Z","key_id":"pith-v1-2026-05","kind":"pith_receipt","last_reissued_at":"2026-05-18T01:52:48.403071Z","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54","receipt_version":"0.3","signature_b64":"2N2n9u5/IzQ0hVZRgwbuFJYfB5Rclz69iHYK6WJRR+65MZweNFO840uUFvNgHFuxzof8fG2WmN2RCdnsPQrtDg==","signature_status":"signed_v1","signed_at":"2026-05-18T01:52:48.403567Z","signed_message":"canonical_sha256_bytes"},"source_id":"1212.0363","source_kind":"arxiv","source_version":1}}},"equivocations":[],"invalid_events":[],"applied_event_ids":["sha256:d553c9ad6dc4dbf0bc9a743d3c783546f255db9afd5fa0a39f3d740b8403e6e0","sha256:304de3c80ba11f44537e09e34fac9c5cbda03c3da88a0f8de69758bb061863b0"],"state_sha256":"4bff3f9260dee508c627dabba897a83f40beda2b60d7bd2ab308f283632aa826"},"bundle_signature":{"signature_status":"signed_v1","algorithm":"ed25519","key_id":"pith-v1-2026-05","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54","signature_b64":"xtk2SBLjY6fbVvThzXtVgTdUcMkg9OsQsdCXRqfuAX2LAq3VL26ZhNwf2+Hp+LXh+ckloPj4HljnXBm1YNUQBg==","signed_message":"bundle_sha256_bytes","signed_at":"2026-06-05T06:40:02.132107Z","bundle_sha256":"b7018ddef47074e1c1f819c3dc2d6049ee0b5873fe8ff0e6f9947c54cbd62f0f"}}