{"bundle_type":"pith_open_graph_bundle","bundle_version":"1.0","pith_number":"pith:2020:4QO6EIJ3GN52OB7YRXBPFNHTDX","short_pith_number":"pith:4QO6EIJ3","canonical_record":{"source":{"id":"2007.01144","kind":"arxiv","version":1},"metadata":{"license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"physics.app-ph","submitted_at":"2020-06-26T11:32:36Z","cross_cats_sorted":["physics.optics"],"title_canon_sha256":"60712daa9e231e57471a4ca11c28f6940a57b98bdc9c23bc1630a2e7c90046a4","abstract_canon_sha256":"50f8aaf5e69f1a33ddc1d2ce3c42d214685a9bae825061e1059282a5d71d825c"},"schema_version":"1.0"},"canonical_sha256":"e41de2213b337ba707f88dc2f2b4f31dd491a6d4caf64c10260a32e76b65d280","source":{"kind":"arxiv","id":"2007.01144","version":1},"source_aliases":[{"alias_kind":"arxiv","alias_value":"2007.01144","created_at":"2026-07-05T01:57:06Z"},{"alias_kind":"arxiv_version","alias_value":"2007.01144v1","created_at":"2026-07-05T01:57:06Z"},{"alias_kind":"doi","alias_value":"10.48550/arxiv.2007.01144","created_at":"2026-07-05T01:57:06Z"},{"alias_kind":"pith_short_12","alias_value":"4QO6EIJ3GN52","created_at":"2026-07-05T01:57:06Z"},{"alias_kind":"pith_short_16","alias_value":"4QO6EIJ3GN52OB7Y","created_at":"2026-07-05T01:57:06Z"},{"alias_kind":"pith_short_8","alias_value":"4QO6EIJ3","created_at":"2026-07-05T01:57:06Z"}],"events":[{"event_type":"record_created","subject_pith_number":"pith:2020:4QO6EIJ3GN52OB7YRXBPFNHTDX","target":"record","payload":{"canonical_record":{"source":{"id":"2007.01144","kind":"arxiv","version":1},"metadata":{"license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"physics.app-ph","submitted_at":"2020-06-26T11:32:36Z","cross_cats_sorted":["physics.optics"],"title_canon_sha256":"60712daa9e231e57471a4ca11c28f6940a57b98bdc9c23bc1630a2e7c90046a4","abstract_canon_sha256":"50f8aaf5e69f1a33ddc1d2ce3c42d214685a9bae825061e1059282a5d71d825c"},"schema_version":"1.0"},"canonical_sha256":"e41de2213b337ba707f88dc2f2b4f31dd491a6d4caf64c10260a32e76b65d280","receipt":{"kind":"pith_receipt","key_id":"pith-v1-2026-05","algorithm":"ed25519","signed_at":"2026-07-05T01:57:06.169503Z","signature_b64":"AmK3T6LkKAwRtSAJY+sxgCQGhfCqv9Ow0SLzMlknxy1ARsrfoutjVLONXrW1HyEO1OU8XOKv6B3qEFyU2gDaAg==","signed_message":"canonical_sha256_bytes","builder_version":"pith-number-builder-2026-05-17-v1","receipt_version":"0.3","canonical_sha256":"e41de2213b337ba707f88dc2f2b4f31dd491a6d4caf64c10260a32e76b65d280","last_reissued_at":"2026-07-05T01:57:06.169034Z","signature_status":"signed_v1","first_computed_at":"2026-07-05T01:57:06.169034Z","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54"},"source_kind":"arxiv","source_id":"2007.01144","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":"2026-07-05T01:57:06Z","supersedes":[],"prev_event":null,"signature":{"signature_status":"signed_v1","algorithm":"ed25519","key_id":"pith-v1-2026-05","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54","signature_b64":"szRw2MI/1T06axc/4bGHcIniVh8lzHFe5dw/bO6fK6Y8NvsX5gg0QOrhz9p2Ah1+tFwd399wkyEXwdbUw6O1CQ==","signed_message":"open_graph_event_sha256_bytes","signed_at":"2026-07-07T12:49:12.421235Z"},"content_sha256":"5eb6c0a6853cf11eb7ff692ad3e3a43eaaf0bcef5118fb772620db40ebe1c1c0","schema_version":"1.0","event_id":"sha256:5eb6c0a6853cf11eb7ff692ad3e3a43eaaf0bcef5118fb772620db40ebe1c1c0"},{"event_type":"graph_snapshot","subject_pith_number":"pith:2020:4QO6EIJ3GN52OB7YRXBPFNHTDX","target":"graph","payload":{"graph_snapshot":{"paper":{"title":"Arbitrary manipulations of dual harmonics and their wave behaviors based on space-time-coding digital metasurface","license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","headline":"","cross_cats":["physics.optics"],"primary_cat":"physics.app-ph","authors_text":"Jin Yang, Jun Chen Ke, Jun Yan Dai, Ming Zheng Chen, Qiang Cheng, Shi Jin, Tie Jun Cui, Wankai Tang","submitted_at":"2020-06-26T11:32:36Z","abstract_excerpt":"Space-time modulated metasurfaces have attracted significant attention due to the additional degree of freedom in manipulating the electromagnetic (EM) waves in both space and time domains. However, the existing techniques have limited wave control capabilities, leading to just a few feasible schemes like regulation of only one specific harmonic. Here, we propose to realize independent manipulations of arbitrarily dual harmonics and their wave behaviors using a space-time-coding (STC) digital metasurface. By employing different STC sequences to the reflection phase of the metasurface, independ"},"claims":{"count":0,"items":[],"snapshot_sha256":"258153158e38e3291e3d48162225fcdb2d5a3ed65a07baac614ab91432fd4f57"},"source":{"id":"2007.01144","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/2007.01144/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":"2026-07-05T01:57:06Z","supersedes":[],"prev_event":null,"signature":{"signature_status":"signed_v1","algorithm":"ed25519","key_id":"pith-v1-2026-05","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54","signature_b64":"DdveDUTtj7zvxTOZRINH5RIuABYWJ4EEx+y0VoEJXqdz5GAvKrhLDMEHsVBnwxXQ/7Iv4QN0WlS55sGHIz1lCQ==","signed_message":"open_graph_event_sha256_bytes","signed_at":"2026-07-07T12:49:12.421619Z"},"content_sha256":"9fdbf98fb398c7105fce0c6eaf1fd5a2e8a6a1b2dbd3e8ec2a26d06480922f65","schema_version":"1.0","event_id":"sha256:9fdbf98fb398c7105fce0c6eaf1fd5a2e8a6a1b2dbd3e8ec2a26d06480922f65"}],"timestamp_proofs":[],"mirror_hints":[{"mirror_type":"https","name":"Pith Resolver","base_url":"https://pith.science","bundle_url":"https://pith.science/pith/4QO6EIJ3GN52OB7YRXBPFNHTDX/bundle.json","state_url":"https://pith.science/pith/4QO6EIJ3GN52OB7YRXBPFNHTDX/state.json","well_known_bundle_url":"https://pith.science/.well-known/pith/4QO6EIJ3GN52OB7YRXBPFNHTDX/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":"2026-07-07T12:49:12Z","links":{"resolver":"https://pith.science/pith/4QO6EIJ3GN52OB7YRXBPFNHTDX","bundle":"https://pith.science/pith/4QO6EIJ3GN52OB7YRXBPFNHTDX/bundle.json","state":"https://pith.science/pith/4QO6EIJ3GN52OB7YRXBPFNHTDX/state.json","well_known_bundle":"https://pith.science/.well-known/pith/4QO6EIJ3GN52OB7YRXBPFNHTDX/bundle.json"},"state":{"state_type":"pith_open_graph_state","state_version":"1.0","pith_number":"pith:2020:4QO6EIJ3GN52OB7YRXBPFNHTDX","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":"50f8aaf5e69f1a33ddc1d2ce3c42d214685a9bae825061e1059282a5d71d825c","cross_cats_sorted":["physics.optics"],"license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"physics.app-ph","submitted_at":"2020-06-26T11:32:36Z","title_canon_sha256":"60712daa9e231e57471a4ca11c28f6940a57b98bdc9c23bc1630a2e7c90046a4"},"schema_version":"1.0","source":{"id":"2007.01144","kind":"arxiv","version":1}},"source_aliases":[{"alias_kind":"arxiv","alias_value":"2007.01144","created_at":"2026-07-05T01:57:06Z"},{"alias_kind":"arxiv_version","alias_value":"2007.01144v1","created_at":"2026-07-05T01:57:06Z"},{"alias_kind":"doi","alias_value":"10.48550/arxiv.2007.01144","created_at":"2026-07-05T01:57:06Z"},{"alias_kind":"pith_short_12","alias_value":"4QO6EIJ3GN52","created_at":"2026-07-05T01:57:06Z"},{"alias_kind":"pith_short_16","alias_value":"4QO6EIJ3GN52OB7Y","created_at":"2026-07-05T01:57:06Z"},{"alias_kind":"pith_short_8","alias_value":"4QO6EIJ3","created_at":"2026-07-05T01:57:06Z"}],"graph_snapshots":[{"event_id":"sha256:9fdbf98fb398c7105fce0c6eaf1fd5a2e8a6a1b2dbd3e8ec2a26d06480922f65","target":"graph","created_at":"2026-07-05T01:57:06Z","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/2007.01144/integrity.json","findings":[],"snapshot_sha256":"c28c3603d3b5d939e8dc4c7e95fa8dfce3d595e45f758748cecf8e644a296938","summary":{"advisory":0,"by_detector":{},"critical":0,"informational":0}},"paper":{"abstract_excerpt":"Space-time modulated metasurfaces have attracted significant attention due to the additional degree of freedom in manipulating the electromagnetic (EM) waves in both space and time domains. However, the existing techniques have limited wave control capabilities, leading to just a few feasible schemes like regulation of only one specific harmonic. Here, we propose to realize independent manipulations of arbitrarily dual harmonics and their wave behaviors using a space-time-coding (STC) digital metasurface. By employing different STC sequences to the reflection phase of the metasurface, independ","authors_text":"Jin Yang, Jun Chen Ke, Jun Yan Dai, Ming Zheng Chen, Qiang Cheng, Shi Jin, Tie Jun Cui, Wankai Tang","cross_cats":["physics.optics"],"headline":"","license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"physics.app-ph","submitted_at":"2020-06-26T11:32:36Z","title":"Arbitrary manipulations of dual harmonics and their wave behaviors based on space-time-coding digital metasurface"},"references":{"count":0,"internal_anchors":0,"resolved_work":0,"sample":[],"snapshot_sha256":"258153158e38e3291e3d48162225fcdb2d5a3ed65a07baac614ab91432fd4f57"},"source":{"id":"2007.01144","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":"sha256:5eb6c0a6853cf11eb7ff692ad3e3a43eaaf0bcef5118fb772620db40ebe1c1c0","target":"record","created_at":"2026-07-05T01:57:06Z","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":"50f8aaf5e69f1a33ddc1d2ce3c42d214685a9bae825061e1059282a5d71d825c","cross_cats_sorted":["physics.optics"],"license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"physics.app-ph","submitted_at":"2020-06-26T11:32:36Z","title_canon_sha256":"60712daa9e231e57471a4ca11c28f6940a57b98bdc9c23bc1630a2e7c90046a4"},"schema_version":"1.0","source":{"id":"2007.01144","kind":"arxiv","version":1}},"canonical_sha256":"e41de2213b337ba707f88dc2f2b4f31dd491a6d4caf64c10260a32e76b65d280","receipt":{"algorithm":"ed25519","builder_version":"pith-number-builder-2026-05-17-v1","canonical_sha256":"e41de2213b337ba707f88dc2f2b4f31dd491a6d4caf64c10260a32e76b65d280","first_computed_at":"2026-07-05T01:57:06.169034Z","key_id":"pith-v1-2026-05","kind":"pith_receipt","last_reissued_at":"2026-07-05T01:57:06.169034Z","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54","receipt_version":"0.3","signature_b64":"AmK3T6LkKAwRtSAJY+sxgCQGhfCqv9Ow0SLzMlknxy1ARsrfoutjVLONXrW1HyEO1OU8XOKv6B3qEFyU2gDaAg==","signature_status":"signed_v1","signed_at":"2026-07-05T01:57:06.169503Z","signed_message":"canonical_sha256_bytes"},"source_id":"2007.01144","source_kind":"arxiv","source_version":1}}},"equivocations":[],"invalid_events":[],"applied_event_ids":["sha256:5eb6c0a6853cf11eb7ff692ad3e3a43eaaf0bcef5118fb772620db40ebe1c1c0","sha256:9fdbf98fb398c7105fce0c6eaf1fd5a2e8a6a1b2dbd3e8ec2a26d06480922f65"],"state_sha256":"86ec1c25bcfbb6d3dbc6aee53687c413134a26132ffd92817d192ac106277edf"},"bundle_signature":{"signature_status":"signed_v1","algorithm":"ed25519","key_id":"pith-v1-2026-05","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54","signature_b64":"COEvuJ0E0IZkOVV6cOhaS5RSFIWPDARTL5t659zkqGFLnGbdlYN/WEllAlt/OSSJP6vyzGkYiglHwQ1s2T/ODQ==","signed_message":"bundle_sha256_bytes","signed_at":"2026-07-07T12:49:12.423472Z","bundle_sha256":"0b80f90c4bfc70e7149dbe908ec90132474329d96bb18ea3a14599a05e0d4e25"}}