{"bundle_type":"pith_open_graph_bundle","bundle_version":"1.0","pith_number":"pith:2019:72XZHK4VWLJKFV7DUG6VVYECHD","short_pith_number":"pith:72XZHK4V","canonical_record":{"source":{"id":"1903.10066","kind":"arxiv","version":1},"metadata":{"license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"physics.optics","submitted_at":"2019-03-24T21:59:48Z","cross_cats_sorted":[],"title_canon_sha256":"483bdc6d2a0b95efba66c188f5be89839802129988661a1829821b296e0a65d9","abstract_canon_sha256":"7428e5f0ca06b0fe3663911a9b49fb109450154e825eb51f603a751d4fcb3351"},"schema_version":"1.0"},"canonical_sha256":"feaf93ab95b2d2a2d7e3a1bd5ae08238ed4c7ffdd17d18bbc32ee092e6e9b549","source":{"kind":"arxiv","id":"1903.10066","version":1},"source_aliases":[{"alias_kind":"arxiv","alias_value":"1903.10066","created_at":"2026-07-04T23:59:14Z"},{"alias_kind":"arxiv_version","alias_value":"1903.10066v1","created_at":"2026-07-04T23:59:14Z"},{"alias_kind":"doi","alias_value":"10.48550/arxiv.1903.10066","created_at":"2026-07-04T23:59:14Z"},{"alias_kind":"pith_short_12","alias_value":"72XZHK4VWLJK","created_at":"2026-07-04T23:59:14Z"},{"alias_kind":"pith_short_16","alias_value":"72XZHK4VWLJKFV7D","created_at":"2026-07-04T23:59:14Z"},{"alias_kind":"pith_short_8","alias_value":"72XZHK4V","created_at":"2026-07-04T23:59:14Z"}],"events":[{"event_type":"record_created","subject_pith_number":"pith:2019:72XZHK4VWLJKFV7DUG6VVYECHD","target":"record","payload":{"canonical_record":{"source":{"id":"1903.10066","kind":"arxiv","version":1},"metadata":{"license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"physics.optics","submitted_at":"2019-03-24T21:59:48Z","cross_cats_sorted":[],"title_canon_sha256":"483bdc6d2a0b95efba66c188f5be89839802129988661a1829821b296e0a65d9","abstract_canon_sha256":"7428e5f0ca06b0fe3663911a9b49fb109450154e825eb51f603a751d4fcb3351"},"schema_version":"1.0"},"canonical_sha256":"feaf93ab95b2d2a2d7e3a1bd5ae08238ed4c7ffdd17d18bbc32ee092e6e9b549","receipt":{"kind":"pith_receipt","key_id":"pith-v1-2026-05","algorithm":"ed25519","signed_at":"2026-07-04T23:59:14.915407Z","signature_b64":"WsmEENdUi95BvaDFlPARhz++c84RUxUJDVb3TipVBCb84p+SbGLCA8+YuHJzIRezdZTsFo07/+VjoUw6nvb+CA==","signed_message":"canonical_sha256_bytes","builder_version":"pith-number-builder-2026-05-17-v1","receipt_version":"0.3","canonical_sha256":"feaf93ab95b2d2a2d7e3a1bd5ae08238ed4c7ffdd17d18bbc32ee092e6e9b549","last_reissued_at":"2026-07-04T23:59:14.914995Z","signature_status":"signed_v1","first_computed_at":"2026-07-04T23:59:14.914995Z","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54"},"source_kind":"arxiv","source_id":"1903.10066","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":"2026-07-04T23:59:14Z","supersedes":[],"prev_event":null,"signature":{"signature_status":"signed_v1","algorithm":"ed25519","key_id":"pith-v1-2026-05","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54","signature_b64":"r7wCv5+UoIbtT19BR+KwWAYIo8+YxHN4D8XL59G/RQrnnY3UuV8t8lNflm+F2whK73FKl1wo6y5xv9B8kCE5CQ==","signed_message":"open_graph_event_sha256_bytes","signed_at":"2026-07-08T19:12:39.835538Z"},"content_sha256":"a51b624a151333b09bebd36564f0965c244253e9153d48f77241a5a642dde09a","schema_version":"1.0","event_id":"sha256:a51b624a151333b09bebd36564f0965c244253e9153d48f77241a5a642dde09a"},{"event_type":"graph_snapshot","subject_pith_number":"pith:2019:72XZHK4VWLJKFV7DUG6VVYECHD","target":"graph","payload":{"graph_snapshot":{"paper":{"title":"Photonic topological phase transition on demand","license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","headline":"","cross_cats":[],"primary_cat":"physics.optics","authors_text":"Alexander V. Kildishev, Alexandra Boltasseva, Vladimir M. Shalaev, Zhaxylyk A. Kudyshev","submitted_at":"2019-03-24T21:59:48Z","abstract_excerpt":"On-demand, switchable phase transitions between topologically non-trivial and trivial photonic states are demonstrated. Specifically, it is shown that integration of a 2D array of coupled ring resonators within a thermal heater array enables unparalleled control over topological protection of photonic modes. Importantly, auxiliary control over spatial phase modulation opens up a way to guide topologically protected edge modes along generated virtual boundaries. The proposed approach can lead to practical realizations of topological phase transitions in many photonic applications, including top"},"claims":{"count":0,"items":[],"snapshot_sha256":"258153158e38e3291e3d48162225fcdb2d5a3ed65a07baac614ab91432fd4f57"},"source":{"id":"1903.10066","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/1903.10066/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":"2026-07-04T23:59:14Z","supersedes":[],"prev_event":null,"signature":{"signature_status":"signed_v1","algorithm":"ed25519","key_id":"pith-v1-2026-05","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54","signature_b64":"eGz7JH6GQgXUP5bFqfQeu5OvluEEA013oJLXl2jQs5eOA7jnLbUoKU2QXrZlowN0X6gV8dqmN3uRrgcMxaDEBA==","signed_message":"open_graph_event_sha256_bytes","signed_at":"2026-07-08T19:12:39.835910Z"},"content_sha256":"5cbcba0f7816c3ca06a7aa2cb9c09162630850abf2185f5e60de3737f3e51074","schema_version":"1.0","event_id":"sha256:5cbcba0f7816c3ca06a7aa2cb9c09162630850abf2185f5e60de3737f3e51074"}],"timestamp_proofs":[],"mirror_hints":[{"mirror_type":"https","name":"Pith Resolver","base_url":"https://pith.science","bundle_url":"https://pith.science/pith/72XZHK4VWLJKFV7DUG6VVYECHD/bundle.json","state_url":"https://pith.science/pith/72XZHK4VWLJKFV7DUG6VVYECHD/state.json","well_known_bundle_url":"https://pith.science/.well-known/pith/72XZHK4VWLJKFV7DUG6VVYECHD/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":"2026-07-08T19:12:39Z","links":{"resolver":"https://pith.science/pith/72XZHK4VWLJKFV7DUG6VVYECHD","bundle":"https://pith.science/pith/72XZHK4VWLJKFV7DUG6VVYECHD/bundle.json","state":"https://pith.science/pith/72XZHK4VWLJKFV7DUG6VVYECHD/state.json","well_known_bundle":"https://pith.science/.well-known/pith/72XZHK4VWLJKFV7DUG6VVYECHD/bundle.json"},"state":{"state_type":"pith_open_graph_state","state_version":"1.0","pith_number":"pith:2019:72XZHK4VWLJKFV7DUG6VVYECHD","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":"7428e5f0ca06b0fe3663911a9b49fb109450154e825eb51f603a751d4fcb3351","cross_cats_sorted":[],"license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"physics.optics","submitted_at":"2019-03-24T21:59:48Z","title_canon_sha256":"483bdc6d2a0b95efba66c188f5be89839802129988661a1829821b296e0a65d9"},"schema_version":"1.0","source":{"id":"1903.10066","kind":"arxiv","version":1}},"source_aliases":[{"alias_kind":"arxiv","alias_value":"1903.10066","created_at":"2026-07-04T23:59:14Z"},{"alias_kind":"arxiv_version","alias_value":"1903.10066v1","created_at":"2026-07-04T23:59:14Z"},{"alias_kind":"doi","alias_value":"10.48550/arxiv.1903.10066","created_at":"2026-07-04T23:59:14Z"},{"alias_kind":"pith_short_12","alias_value":"72XZHK4VWLJK","created_at":"2026-07-04T23:59:14Z"},{"alias_kind":"pith_short_16","alias_value":"72XZHK4VWLJKFV7D","created_at":"2026-07-04T23:59:14Z"},{"alias_kind":"pith_short_8","alias_value":"72XZHK4V","created_at":"2026-07-04T23:59:14Z"}],"graph_snapshots":[{"event_id":"sha256:5cbcba0f7816c3ca06a7aa2cb9c09162630850abf2185f5e60de3737f3e51074","target":"graph","created_at":"2026-07-04T23:59:14Z","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"},"integrity":{"available":true,"clean":true,"detectors_run":[],"endpoint":"/pith/1903.10066/integrity.json","findings":[],"snapshot_sha256":"c28c3603d3b5d939e8dc4c7e95fa8dfce3d595e45f758748cecf8e644a296938","summary":{"advisory":0,"by_detector":{},"critical":0,"informational":0}},"paper":{"abstract_excerpt":"On-demand, switchable phase transitions between topologically non-trivial and trivial photonic states are demonstrated. Specifically, it is shown that integration of a 2D array of coupled ring resonators within a thermal heater array enables unparalleled control over topological protection of photonic modes. Importantly, auxiliary control over spatial phase modulation opens up a way to guide topologically protected edge modes along generated virtual boundaries. The proposed approach can lead to practical realizations of topological phase transitions in many photonic applications, including top","authors_text":"Alexander V. Kildishev, Alexandra Boltasseva, Vladimir M. Shalaev, Zhaxylyk A. Kudyshev","cross_cats":[],"headline":"","license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"physics.optics","submitted_at":"2019-03-24T21:59:48Z","title":"Photonic topological phase transition on demand"},"references":{"count":0,"internal_anchors":0,"resolved_work":0,"sample":[],"snapshot_sha256":"258153158e38e3291e3d48162225fcdb2d5a3ed65a07baac614ab91432fd4f57"},"source":{"id":"1903.10066","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:a51b624a151333b09bebd36564f0965c244253e9153d48f77241a5a642dde09a","target":"record","created_at":"2026-07-04T23:59:14Z","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":"7428e5f0ca06b0fe3663911a9b49fb109450154e825eb51f603a751d4fcb3351","cross_cats_sorted":[],"license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"physics.optics","submitted_at":"2019-03-24T21:59:48Z","title_canon_sha256":"483bdc6d2a0b95efba66c188f5be89839802129988661a1829821b296e0a65d9"},"schema_version":"1.0","source":{"id":"1903.10066","kind":"arxiv","version":1}},"canonical_sha256":"feaf93ab95b2d2a2d7e3a1bd5ae08238ed4c7ffdd17d18bbc32ee092e6e9b549","receipt":{"algorithm":"ed25519","builder_version":"pith-number-builder-2026-05-17-v1","canonical_sha256":"feaf93ab95b2d2a2d7e3a1bd5ae08238ed4c7ffdd17d18bbc32ee092e6e9b549","first_computed_at":"2026-07-04T23:59:14.914995Z","key_id":"pith-v1-2026-05","kind":"pith_receipt","last_reissued_at":"2026-07-04T23:59:14.914995Z","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54","receipt_version":"0.3","signature_b64":"WsmEENdUi95BvaDFlPARhz++c84RUxUJDVb3TipVBCb84p+SbGLCA8+YuHJzIRezdZTsFo07/+VjoUw6nvb+CA==","signature_status":"signed_v1","signed_at":"2026-07-04T23:59:14.915407Z","signed_message":"canonical_sha256_bytes"},"source_id":"1903.10066","source_kind":"arxiv","source_version":1}}},"equivocations":[],"invalid_events":[],"applied_event_ids":["sha256:a51b624a151333b09bebd36564f0965c244253e9153d48f77241a5a642dde09a","sha256:5cbcba0f7816c3ca06a7aa2cb9c09162630850abf2185f5e60de3737f3e51074"],"state_sha256":"6f8147d738b6aa00645bb5a8f1c90e9d176d839f4dd52ccd05d6c17725881ecd"},"bundle_signature":{"signature_status":"signed_v1","algorithm":"ed25519","key_id":"pith-v1-2026-05","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54","signature_b64":"hdn6gn7DHzY7Mh4tojLf8VX3i1kGQ9I7FtTF4/ZhQd2GCrN175C3sWrzKJcO/wTM1i7P0A/R4kzCsNzES108BA==","signed_message":"bundle_sha256_bytes","signed_at":"2026-07-08T19:12:39.838243Z","bundle_sha256":"824ca55fad588fc2aaef3462d0b03e498572f754f848518e6358aecbc31f9682"}}