{"bundle_type":"pith_open_graph_bundle","bundle_version":"1.0","pith_number":"pith:2022:VIVBB53FOUZJ7RD7GYWCP3HORD","short_pith_number":"pith:VIVBB53F","canonical_record":{"source":{"id":"2202.04524","kind":"arxiv","version":1},"metadata":{"license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"eess.SP","submitted_at":"2022-02-09T15:37:32Z","cross_cats_sorted":[],"title_canon_sha256":"816da6e494d9e84bead5ca1b1557c9e9c91a870469310f71967c70efa16df12a","abstract_canon_sha256":"d719744213f4f8781325f1c9e03184b4649d4766e8d73e9f1670733786832b51"},"schema_version":"1.0"},"canonical_sha256":"aa2a10f76575329fc47f362c27ecee88cc8514b42cc4719ce451052456623ea8","source":{"kind":"arxiv","id":"2202.04524","version":1},"source_aliases":[{"alias_kind":"arxiv","alias_value":"2202.04524","created_at":"2026-07-05T08:41:35Z"},{"alias_kind":"arxiv_version","alias_value":"2202.04524v1","created_at":"2026-07-05T08:41:35Z"},{"alias_kind":"doi","alias_value":"10.48550/arxiv.2202.04524","created_at":"2026-07-05T08:41:35Z"},{"alias_kind":"pith_short_12","alias_value":"VIVBB53FOUZJ","created_at":"2026-07-05T08:41:35Z"},{"alias_kind":"pith_short_16","alias_value":"VIVBB53FOUZJ7RD7","created_at":"2026-07-05T08:41:35Z"},{"alias_kind":"pith_short_8","alias_value":"VIVBB53F","created_at":"2026-07-05T08:41:35Z"}],"events":[{"event_type":"record_created","subject_pith_number":"pith:2022:VIVBB53FOUZJ7RD7GYWCP3HORD","target":"record","payload":{"canonical_record":{"source":{"id":"2202.04524","kind":"arxiv","version":1},"metadata":{"license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"eess.SP","submitted_at":"2022-02-09T15:37:32Z","cross_cats_sorted":[],"title_canon_sha256":"816da6e494d9e84bead5ca1b1557c9e9c91a870469310f71967c70efa16df12a","abstract_canon_sha256":"d719744213f4f8781325f1c9e03184b4649d4766e8d73e9f1670733786832b51"},"schema_version":"1.0"},"canonical_sha256":"aa2a10f76575329fc47f362c27ecee88cc8514b42cc4719ce451052456623ea8","receipt":{"kind":"pith_receipt","key_id":"pith-v1-2026-05","algorithm":"ed25519","signed_at":"2026-07-05T08:41:35.443919Z","signature_b64":"6LaLxK4OHzWvEJSXZHoaL7wmrzLNbvCek8FuwQKJPjGFpPCJODP/MymFEA9aNHhad7eu8Ay4mrIvCy5UhhMmBg==","signed_message":"canonical_sha256_bytes","builder_version":"pith-number-builder-2026-05-17-v1","receipt_version":"0.3","canonical_sha256":"aa2a10f76575329fc47f362c27ecee88cc8514b42cc4719ce451052456623ea8","last_reissued_at":"2026-07-05T08:41:35.443436Z","signature_status":"signed_v1","first_computed_at":"2026-07-05T08:41:35.443436Z","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54"},"source_kind":"arxiv","source_id":"2202.04524","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":"2026-07-05T08:41:35Z","supersedes":[],"prev_event":null,"signature":{"signature_status":"signed_v1","algorithm":"ed25519","key_id":"pith-v1-2026-05","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54","signature_b64":"rF+69Wh3B0Uj5AEEmDSaLpeV5xXJuEv/ItLACJ1Xrx2A0eM7JoDzll0RotJz6XCoVGxf6lBuvRkF2AzFmOBcAA==","signed_message":"open_graph_event_sha256_bytes","signed_at":"2026-08-19T09:18:57.306350Z"},"content_sha256":"9c0a6e5b5a24cfd9c74183f2e86fc4522555ae61090d1660fd7d6421044467fe","schema_version":"1.0","event_id":"sha256:9c0a6e5b5a24cfd9c74183f2e86fc4522555ae61090d1660fd7d6421044467fe"},{"event_type":"graph_snapshot","subject_pith_number":"pith:2022:VIVBB53FOUZJ7RD7GYWCP3HORD","target":"graph","payload":{"graph_snapshot":{"paper":{"title":"Techtile -- Open 6G R&D Testbed for Communication, Positioning, Sensing, WPT and Federated Learning","license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","headline":"","cross_cats":[],"primary_cat":"eess.SP","authors_text":"Bert Cox, Daan Delabie, Geoffrey Ottoy, Gilles Callebaut, Jarne Van Mulders, Liesbet Van der Perre, Nobby Stevens","submitted_at":"2022-02-09T15:37:32Z","abstract_excerpt":"New concepts for next-generation wireless systems are being developed. It is expected that these 6G and beyond systems will incorporate more than only communication, but also sensing, positioning, (deep) edge computing, and other services. The discussed measurement facility and approach, named Techtile, is an open, both in design and operation, and unique testbed to evaluate these newly envisioned systems. Techtile is a multi-functional and versatile testbed, providing fine-grained distributed resources for new communication, positioning and sensing technologies. The facility enables experimen"},"claims":{"count":0,"items":[],"snapshot_sha256":"258153158e38e3291e3d48162225fcdb2d5a3ed65a07baac614ab91432fd4f57"},"source":{"id":"2202.04524","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/2202.04524/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":"2026-07-05T08:41:35Z","supersedes":[],"prev_event":null,"signature":{"signature_status":"signed_v1","algorithm":"ed25519","key_id":"pith-v1-2026-05","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54","signature_b64":"d39VvNHd0AWatUZjcYBOM7Njr09Dlajrziflggqn79BlGB5ryKURjhBp3sJSbWjlDvXhKQMUh5R1OqRc38Q9Bg==","signed_message":"open_graph_event_sha256_bytes","signed_at":"2026-08-19T09:18:57.306945Z"},"content_sha256":"f2af0645a37d0c5fecc3b71b7f4e74ec17a07ff31126efb4d30abb8c4ed7a141","schema_version":"1.0","event_id":"sha256:f2af0645a37d0c5fecc3b71b7f4e74ec17a07ff31126efb4d30abb8c4ed7a141"}],"timestamp_proofs":[],"mirror_hints":[{"mirror_type":"https","name":"Pith Resolver","base_url":"https://pith.science","bundle_url":"https://pith.science/pith/VIVBB53FOUZJ7RD7GYWCP3HORD/bundle.json","state_url":"https://pith.science/pith/VIVBB53FOUZJ7RD7GYWCP3HORD/state.json","well_known_bundle_url":"https://pith.science/.well-known/pith/VIVBB53FOUZJ7RD7GYWCP3HORD/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":"2026-08-19T09:18:57Z","links":{"resolver":"https://pith.science/pith/VIVBB53FOUZJ7RD7GYWCP3HORD","bundle":"https://pith.science/pith/VIVBB53FOUZJ7RD7GYWCP3HORD/bundle.json","state":"https://pith.science/pith/VIVBB53FOUZJ7RD7GYWCP3HORD/state.json","well_known_bundle":"https://pith.science/.well-known/pith/VIVBB53FOUZJ7RD7GYWCP3HORD/bundle.json"},"state":{"state_type":"pith_open_graph_state","state_version":"1.0","pith_number":"pith:2022:VIVBB53FOUZJ7RD7GYWCP3HORD","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":"d719744213f4f8781325f1c9e03184b4649d4766e8d73e9f1670733786832b51","cross_cats_sorted":[],"license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"eess.SP","submitted_at":"2022-02-09T15:37:32Z","title_canon_sha256":"816da6e494d9e84bead5ca1b1557c9e9c91a870469310f71967c70efa16df12a"},"schema_version":"1.0","source":{"id":"2202.04524","kind":"arxiv","version":1}},"source_aliases":[{"alias_kind":"arxiv","alias_value":"2202.04524","created_at":"2026-07-05T08:41:35Z"},{"alias_kind":"arxiv_version","alias_value":"2202.04524v1","created_at":"2026-07-05T08:41:35Z"},{"alias_kind":"doi","alias_value":"10.48550/arxiv.2202.04524","created_at":"2026-07-05T08:41:35Z"},{"alias_kind":"pith_short_12","alias_value":"VIVBB53FOUZJ","created_at":"2026-07-05T08:41:35Z"},{"alias_kind":"pith_short_16","alias_value":"VIVBB53FOUZJ7RD7","created_at":"2026-07-05T08:41:35Z"},{"alias_kind":"pith_short_8","alias_value":"VIVBB53F","created_at":"2026-07-05T08:41:35Z"}],"graph_snapshots":[{"event_id":"sha256:f2af0645a37d0c5fecc3b71b7f4e74ec17a07ff31126efb4d30abb8c4ed7a141","target":"graph","created_at":"2026-07-05T08:41:35Z","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/2202.04524/integrity.json","findings":[],"snapshot_sha256":"c28c3603d3b5d939e8dc4c7e95fa8dfce3d595e45f758748cecf8e644a296938","summary":{"advisory":0,"by_detector":{},"critical":0,"informational":0}},"paper":{"abstract_excerpt":"New concepts for next-generation wireless systems are being developed. It is expected that these 6G and beyond systems will incorporate more than only communication, but also sensing, positioning, (deep) edge computing, and other services. The discussed measurement facility and approach, named Techtile, is an open, both in design and operation, and unique testbed to evaluate these newly envisioned systems. Techtile is a multi-functional and versatile testbed, providing fine-grained distributed resources for new communication, positioning and sensing technologies. The facility enables experimen","authors_text":"Bert Cox, Daan Delabie, Geoffrey Ottoy, Gilles Callebaut, Jarne Van Mulders, Liesbet Van der Perre, Nobby Stevens","cross_cats":[],"headline":"","license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"eess.SP","submitted_at":"2022-02-09T15:37:32Z","title":"Techtile -- Open 6G R&D Testbed for Communication, Positioning, Sensing, WPT and Federated Learning"},"references":{"count":0,"internal_anchors":0,"resolved_work":0,"sample":[],"snapshot_sha256":"258153158e38e3291e3d48162225fcdb2d5a3ed65a07baac614ab91432fd4f57"},"source":{"id":"2202.04524","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":"sha256:9c0a6e5b5a24cfd9c74183f2e86fc4522555ae61090d1660fd7d6421044467fe","target":"record","created_at":"2026-07-05T08:41:35Z","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":"d719744213f4f8781325f1c9e03184b4649d4766e8d73e9f1670733786832b51","cross_cats_sorted":[],"license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"eess.SP","submitted_at":"2022-02-09T15:37:32Z","title_canon_sha256":"816da6e494d9e84bead5ca1b1557c9e9c91a870469310f71967c70efa16df12a"},"schema_version":"1.0","source":{"id":"2202.04524","kind":"arxiv","version":1}},"canonical_sha256":"aa2a10f76575329fc47f362c27ecee88cc8514b42cc4719ce451052456623ea8","receipt":{"algorithm":"ed25519","builder_version":"pith-number-builder-2026-05-17-v1","canonical_sha256":"aa2a10f76575329fc47f362c27ecee88cc8514b42cc4719ce451052456623ea8","first_computed_at":"2026-07-05T08:41:35.443436Z","key_id":"pith-v1-2026-05","kind":"pith_receipt","last_reissued_at":"2026-07-05T08:41:35.443436Z","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54","receipt_version":"0.3","signature_b64":"6LaLxK4OHzWvEJSXZHoaL7wmrzLNbvCek8FuwQKJPjGFpPCJODP/MymFEA9aNHhad7eu8Ay4mrIvCy5UhhMmBg==","signature_status":"signed_v1","signed_at":"2026-07-05T08:41:35.443919Z","signed_message":"canonical_sha256_bytes"},"source_id":"2202.04524","source_kind":"arxiv","source_version":1}}},"equivocations":[],"invalid_events":[],"applied_event_ids":["sha256:9c0a6e5b5a24cfd9c74183f2e86fc4522555ae61090d1660fd7d6421044467fe","sha256:f2af0645a37d0c5fecc3b71b7f4e74ec17a07ff31126efb4d30abb8c4ed7a141"],"state_sha256":"4a4a1e9d4a9ae876d4f57a667cdb4036114a870449ef4eef14a3e86433aa0caa"},"bundle_signature":{"signature_status":"signed_v1","algorithm":"ed25519","key_id":"pith-v1-2026-05","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54","signature_b64":"v33p/MtPzJG5EjWXHrgXZ8fortxUbasMw716Sb1APMyy+N8TS18Gfz5XSczRGWlaYtQNoXf5mS7LrradwN7jBw==","signed_message":"bundle_sha256_bytes","signed_at":"2026-08-19T09:18:57.311130Z","bundle_sha256":"05fc10ea67f3054b1574627959731437f6fd93d54fce34ac7f6cb5907320eb5e"}}