{"bundle_type":"pith_open_graph_bundle","bundle_version":"1.0","pith_number":"pith:2020:2E26WXI432PHQ65IVJCY5LJ4CF","short_pith_number":"pith:2E26WXI4","canonical_record":{"source":{"id":"2001.04871","kind":"arxiv","version":1},"metadata":{"license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"physics.optics","submitted_at":"2020-01-14T16:24:31Z","cross_cats_sorted":[],"title_canon_sha256":"b3c7931f3600ffcfc28fd82273a7e2be76344d96eedce403f97fd20f4f25942c","abstract_canon_sha256":"c9a9e82191d914ee0373acfc13994fadc8b45d1500f15533d7ba76314c184544"},"schema_version":"1.0"},"canonical_sha256":"d135eb5d1cde9e787ba8aa458ead3c117953d46bd274e7c53327fe85f4ba5c4e","source":{"kind":"arxiv","id":"2001.04871","version":1},"source_aliases":[{"alias_kind":"arxiv","alias_value":"2001.04871","created_at":"2026-07-05T01:46:46Z"},{"alias_kind":"arxiv_version","alias_value":"2001.04871v1","created_at":"2026-07-05T01:46:46Z"},{"alias_kind":"doi","alias_value":"10.48550/arxiv.2001.04871","created_at":"2026-07-05T01:46:46Z"},{"alias_kind":"pith_short_12","alias_value":"2E26WXI432PH","created_at":"2026-07-05T01:46:46Z"},{"alias_kind":"pith_short_16","alias_value":"2E26WXI432PHQ65I","created_at":"2026-07-05T01:46:46Z"},{"alias_kind":"pith_short_8","alias_value":"2E26WXI4","created_at":"2026-07-05T01:46:46Z"}],"events":[{"event_type":"record_created","subject_pith_number":"pith:2020:2E26WXI432PHQ65IVJCY5LJ4CF","target":"record","payload":{"canonical_record":{"source":{"id":"2001.04871","kind":"arxiv","version":1},"metadata":{"license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"physics.optics","submitted_at":"2020-01-14T16:24:31Z","cross_cats_sorted":[],"title_canon_sha256":"b3c7931f3600ffcfc28fd82273a7e2be76344d96eedce403f97fd20f4f25942c","abstract_canon_sha256":"c9a9e82191d914ee0373acfc13994fadc8b45d1500f15533d7ba76314c184544"},"schema_version":"1.0"},"canonical_sha256":"d135eb5d1cde9e787ba8aa458ead3c117953d46bd274e7c53327fe85f4ba5c4e","receipt":{"kind":"pith_receipt","key_id":"pith-v1-2026-05","algorithm":"ed25519","signed_at":"2026-07-05T01:46:46.652081Z","signature_b64":"STyx1W+IdAZjBfTE4br5oMXBpN+MPGzbx41xpFSOufladTzBTcwObnbJzj7XVVhFvzdmfzfSTmAYKSpP58XDAg==","signed_message":"canonical_sha256_bytes","builder_version":"pith-number-builder-2026-05-17-v1","receipt_version":"0.3","canonical_sha256":"d135eb5d1cde9e787ba8aa458ead3c117953d46bd274e7c53327fe85f4ba5c4e","last_reissued_at":"2026-07-05T01:46:46.651667Z","signature_status":"signed_v1","first_computed_at":"2026-07-05T01:46:46.651667Z","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54"},"source_kind":"arxiv","source_id":"2001.04871","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":"2026-07-05T01:46:46Z","supersedes":[],"prev_event":null,"signature":{"signature_status":"signed_v1","algorithm":"ed25519","key_id":"pith-v1-2026-05","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54","signature_b64":"qg/SP1XCrBaqd7hG9xcz5NCin9b8lqHLVofBdvpX8ef49mB0jo98HG+r+0b+QpuImjhqUsxdEYGbaBrWQ9wLDw==","signed_message":"open_graph_event_sha256_bytes","signed_at":"2026-08-11T01:48:02.111712Z"},"content_sha256":"f61735cda2256872015457fd438004d79da94e4ec0912e7012ffe0804cabb4b1","schema_version":"1.0","event_id":"sha256:f61735cda2256872015457fd438004d79da94e4ec0912e7012ffe0804cabb4b1"},{"event_type":"graph_snapshot","subject_pith_number":"pith:2020:2E26WXI432PHQ65IVJCY5LJ4CF","target":"graph","payload":{"graph_snapshot":{"paper":{"title":"Back-scatter immune injection-locked Brillouin laser in silicon","license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","headline":"","cross_cats":[],"primary_cat":"physics.optics","authors_text":"Andrew L. Starbuck, Andrew T. Pomerene, Anthony L. Lentine, Christina M. Dallo, Douglas C. Trotter, Eric A. Kittlaus, Michael Gehl, Nils T. Otterstrom, Peter T. Rakich, Ryan O. Behunin, Shai Gertler, Yishu Zhou","submitted_at":"2020-01-14T16:24:31Z","abstract_excerpt":"As self-sustained oscillators, lasers possess the unusual ability to spontaneously synchronize. These nonlinear dynamics are the basis for a simple yet powerful stabilization technique known as injection locking, in which a laser's frequency and phase can be controlled by an injected signal. Due to its inherent simplicity and favorable noise characteristics, injection locking has become a workhorse for coherent amplification and high-fidelity signal synthesis in applications ranging from precision atomic spectroscopy to distributed sensing. Within integrated photonics, however, these injection"},"claims":{"count":0,"items":[],"snapshot_sha256":"258153158e38e3291e3d48162225fcdb2d5a3ed65a07baac614ab91432fd4f57"},"source":{"id":"2001.04871","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":""},"integrity":{"clean":true,"summary":{"advisory":0,"critical":0,"by_detector":{},"informational":0},"endpoint":"/pith/2001.04871/integrity.json","findings":[],"available":true,"detectors_run":[],"snapshot_sha256":"c28c3603d3b5d939e8dc4c7e95fa8dfce3d595e45f758748cecf8e644a296938"},"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":"2026-07-05T01:46:46Z","supersedes":[],"prev_event":null,"signature":{"signature_status":"signed_v1","algorithm":"ed25519","key_id":"pith-v1-2026-05","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54","signature_b64":"W3Gv3U3XWnCmMWNCw1s3Z7ZPvsVFdMHl0yxgZcmpHuaVCTcKYiiTNYrIzQcVRImTlowu+KV6wTqYpuzWV2qnCw==","signed_message":"open_graph_event_sha256_bytes","signed_at":"2026-08-11T01:48:02.112324Z"},"content_sha256":"565772f2477a85fb2029cb7c0e12506f21e10f7ffa3e95fd09b40320c1743896","schema_version":"1.0","event_id":"sha256:565772f2477a85fb2029cb7c0e12506f21e10f7ffa3e95fd09b40320c1743896"}],"timestamp_proofs":[],"mirror_hints":[{"mirror_type":"https","name":"Pith Resolver","base_url":"https://pith.science","bundle_url":"https://pith.science/pith/2E26WXI432PHQ65IVJCY5LJ4CF/bundle.json","state_url":"https://pith.science/pith/2E26WXI432PHQ65IVJCY5LJ4CF/state.json","well_known_bundle_url":"https://pith.science/.well-known/pith/2E26WXI432PHQ65IVJCY5LJ4CF/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":"2026-08-11T01:48:02Z","links":{"resolver":"https://pith.science/pith/2E26WXI432PHQ65IVJCY5LJ4CF","bundle":"https://pith.science/pith/2E26WXI432PHQ65IVJCY5LJ4CF/bundle.json","state":"https://pith.science/pith/2E26WXI432PHQ65IVJCY5LJ4CF/state.json","well_known_bundle":"https://pith.science/.well-known/pith/2E26WXI432PHQ65IVJCY5LJ4CF/bundle.json"},"state":{"state_type":"pith_open_graph_state","state_version":"1.0","pith_number":"pith:2020:2E26WXI432PHQ65IVJCY5LJ4CF","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":"c9a9e82191d914ee0373acfc13994fadc8b45d1500f15533d7ba76314c184544","cross_cats_sorted":[],"license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"physics.optics","submitted_at":"2020-01-14T16:24:31Z","title_canon_sha256":"b3c7931f3600ffcfc28fd82273a7e2be76344d96eedce403f97fd20f4f25942c"},"schema_version":"1.0","source":{"id":"2001.04871","kind":"arxiv","version":1}},"source_aliases":[{"alias_kind":"arxiv","alias_value":"2001.04871","created_at":"2026-07-05T01:46:46Z"},{"alias_kind":"arxiv_version","alias_value":"2001.04871v1","created_at":"2026-07-05T01:46:46Z"},{"alias_kind":"doi","alias_value":"10.48550/arxiv.2001.04871","created_at":"2026-07-05T01:46:46Z"},{"alias_kind":"pith_short_12","alias_value":"2E26WXI432PH","created_at":"2026-07-05T01:46:46Z"},{"alias_kind":"pith_short_16","alias_value":"2E26WXI432PHQ65I","created_at":"2026-07-05T01:46:46Z"},{"alias_kind":"pith_short_8","alias_value":"2E26WXI4","created_at":"2026-07-05T01:46:46Z"}],"graph_snapshots":[{"event_id":"sha256:565772f2477a85fb2029cb7c0e12506f21e10f7ffa3e95fd09b40320c1743896","target":"graph","created_at":"2026-07-05T01:46:46Z","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"},"integrity":{"available":true,"clean":true,"detectors_run":[],"endpoint":"/pith/2001.04871/integrity.json","findings":[],"snapshot_sha256":"c28c3603d3b5d939e8dc4c7e95fa8dfce3d595e45f758748cecf8e644a296938","summary":{"advisory":0,"by_detector":{},"critical":0,"informational":0}},"paper":{"abstract_excerpt":"As self-sustained oscillators, lasers possess the unusual ability to spontaneously synchronize. These nonlinear dynamics are the basis for a simple yet powerful stabilization technique known as injection locking, in which a laser's frequency and phase can be controlled by an injected signal. Due to its inherent simplicity and favorable noise characteristics, injection locking has become a workhorse for coherent amplification and high-fidelity signal synthesis in applications ranging from precision atomic spectroscopy to distributed sensing. Within integrated photonics, however, these injection","authors_text":"Andrew L. Starbuck, Andrew T. Pomerene, Anthony L. Lentine, Christina M. Dallo, Douglas C. Trotter, Eric A. Kittlaus, Michael Gehl, Nils T. Otterstrom, Peter T. Rakich, Ryan O. Behunin, Shai Gertler, Yishu Zhou","cross_cats":[],"headline":"","license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"physics.optics","submitted_at":"2020-01-14T16:24:31Z","title":"Back-scatter immune injection-locked Brillouin laser in silicon"},"references":{"count":0,"internal_anchors":0,"resolved_work":0,"sample":[],"snapshot_sha256":"258153158e38e3291e3d48162225fcdb2d5a3ed65a07baac614ab91432fd4f57"},"source":{"id":"2001.04871","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:f61735cda2256872015457fd438004d79da94e4ec0912e7012ffe0804cabb4b1","target":"record","created_at":"2026-07-05T01:46:46Z","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":"c9a9e82191d914ee0373acfc13994fadc8b45d1500f15533d7ba76314c184544","cross_cats_sorted":[],"license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"physics.optics","submitted_at":"2020-01-14T16:24:31Z","title_canon_sha256":"b3c7931f3600ffcfc28fd82273a7e2be76344d96eedce403f97fd20f4f25942c"},"schema_version":"1.0","source":{"id":"2001.04871","kind":"arxiv","version":1}},"canonical_sha256":"d135eb5d1cde9e787ba8aa458ead3c117953d46bd274e7c53327fe85f4ba5c4e","receipt":{"algorithm":"ed25519","builder_version":"pith-number-builder-2026-05-17-v1","canonical_sha256":"d135eb5d1cde9e787ba8aa458ead3c117953d46bd274e7c53327fe85f4ba5c4e","first_computed_at":"2026-07-05T01:46:46.651667Z","key_id":"pith-v1-2026-05","kind":"pith_receipt","last_reissued_at":"2026-07-05T01:46:46.651667Z","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54","receipt_version":"0.3","signature_b64":"STyx1W+IdAZjBfTE4br5oMXBpN+MPGzbx41xpFSOufladTzBTcwObnbJzj7XVVhFvzdmfzfSTmAYKSpP58XDAg==","signature_status":"signed_v1","signed_at":"2026-07-05T01:46:46.652081Z","signed_message":"canonical_sha256_bytes"},"source_id":"2001.04871","source_kind":"arxiv","source_version":1}}},"equivocations":[],"invalid_events":[],"applied_event_ids":["sha256:f61735cda2256872015457fd438004d79da94e4ec0912e7012ffe0804cabb4b1","sha256:565772f2477a85fb2029cb7c0e12506f21e10f7ffa3e95fd09b40320c1743896"],"state_sha256":"9177a426c16f6e1b2a85f7aeaf989992a13d24adedcfdd490b77df1467a525dd"},"bundle_signature":{"signature_status":"signed_v1","algorithm":"ed25519","key_id":"pith-v1-2026-05","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54","signature_b64":"YKSwEiFXmFhTy8qZS+nXYMf6u2ZF/Hx3lwaYcFpwx+8QQYTzmaMsurIHit/zaUkPCH2uaJ0j9Z0VYUp+VgugCA==","signed_message":"bundle_sha256_bytes","signed_at":"2026-08-11T01:48:02.118293Z","bundle_sha256":"f8b134650e2380391765181c89c1e5b0c081b893264a157fd4e7eb12d4e35a56"}}