{"bundle_type":"pith_open_graph_bundle","bundle_version":"1.0","pith_number":"pith:2019:67WGQ5MG5EAS2CN4DUYWSLGI2K","short_pith_number":"pith:67WGQ5MG","canonical_record":{"source":{"id":"1901.06836","kind":"arxiv","version":1},"metadata":{"license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"eess.SP","submitted_at":"2019-01-21T09:24:25Z","cross_cats_sorted":[],"title_canon_sha256":"981ffa9947f3b28441f87e0300ec70fa127c54840cfa26104a6f8e4d0cd1f216","abstract_canon_sha256":"957cc93f8b580013ccc30e658e81af726b276067a93c0ef3ae56326763a3cdd8"},"schema_version":"1.0"},"canonical_sha256":"f7ec687586e9012d09bc1d31692cc8d2b92fa160448134a4c738b3b59a5a8a38","source":{"kind":"arxiv","id":"1901.06836","version":1},"source_aliases":[{"alias_kind":"arxiv","alias_value":"1901.06836","created_at":"2026-05-17T23:55:48Z"},{"alias_kind":"arxiv_version","alias_value":"1901.06836v1","created_at":"2026-05-17T23:55:48Z"},{"alias_kind":"doi","alias_value":"10.48550/arxiv.1901.06836","created_at":"2026-05-17T23:55:48Z"},{"alias_kind":"pith_short_12","alias_value":"67WGQ5MG5EAS","created_at":"2026-05-18T12:33:10Z"},{"alias_kind":"pith_short_16","alias_value":"67WGQ5MG5EAS2CN4","created_at":"2026-05-18T12:33:10Z"},{"alias_kind":"pith_short_8","alias_value":"67WGQ5MG","created_at":"2026-05-18T12:33:10Z"}],"events":[{"event_type":"record_created","subject_pith_number":"pith:2019:67WGQ5MG5EAS2CN4DUYWSLGI2K","target":"record","payload":{"canonical_record":{"source":{"id":"1901.06836","kind":"arxiv","version":1},"metadata":{"license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"eess.SP","submitted_at":"2019-01-21T09:24:25Z","cross_cats_sorted":[],"title_canon_sha256":"981ffa9947f3b28441f87e0300ec70fa127c54840cfa26104a6f8e4d0cd1f216","abstract_canon_sha256":"957cc93f8b580013ccc30e658e81af726b276067a93c0ef3ae56326763a3cdd8"},"schema_version":"1.0"},"canonical_sha256":"f7ec687586e9012d09bc1d31692cc8d2b92fa160448134a4c738b3b59a5a8a38","receipt":{"kind":"pith_receipt","key_id":"pith-v1-2026-05","algorithm":"ed25519","signed_at":"2026-05-17T23:55:48.997663Z","signature_b64":"K3KEWVOrzt04k/0E5BCVqFz4hHc0taE4r+1L26Ln/+WipKu/qVTyS8QRbmjXaTL6qmDGof6Mz/yd/ixo+xF5CA==","signed_message":"canonical_sha256_bytes","builder_version":"pith-number-builder-2026-05-17-v1","receipt_version":"0.3","canonical_sha256":"f7ec687586e9012d09bc1d31692cc8d2b92fa160448134a4c738b3b59a5a8a38","last_reissued_at":"2026-05-17T23:55:48.997086Z","signature_status":"signed_v1","first_computed_at":"2026-05-17T23:55:48.997086Z","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54"},"source_kind":"arxiv","source_id":"1901.06836","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":"2026-05-17T23:55:48Z","supersedes":[],"prev_event":null,"signature":{"signature_status":"signed_v1","algorithm":"ed25519","key_id":"pith-v1-2026-05","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54","signature_b64":"2fGZuPB/ERm/fzpwxXtzpyWilP4XdrhRwW75S7OsUCbb4EhpwKU3cHDq+/isZClleGIJDlTYhGkEMXmaD3GGDw==","signed_message":"open_graph_event_sha256_bytes","signed_at":"2026-05-31T23:36:59.865904Z"},"content_sha256":"f75391f914797e575988c66f45b3ebe6ba9328781a5611b236786d0c991b50d5","schema_version":"1.0","event_id":"sha256:f75391f914797e575988c66f45b3ebe6ba9328781a5611b236786d0c991b50d5"},{"event_type":"graph_snapshot","subject_pith_number":"pith:2019:67WGQ5MG5EAS2CN4DUYWSLGI2K","target":"graph","payload":{"graph_snapshot":{"paper":{"title":"Remote IoT devices: sleepy strategies and signal processing to the rescue for a long battery life","license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","headline":"","cross_cats":[],"primary_cat":"eess.SP","authors_text":"Bart Thoen, Geoffrey Ottoy, Gilles Callebaut, Guus Leenders, Liesbet Van der Perre, Lieven De Strycker","submitted_at":"2019-01-21T09:24:25Z","abstract_excerpt":"Long range wireless connectivity opens the door for new IoT applications. Low energy consumption is essential to enable long autonomy of devices powered by batteries or even relying on harvested energy. This paper introduces technologies for long-distance interaction with energy-constraint embedded devices. It proposes sleepy strategies for power management for the platform and the transmission. Adequate signal processing on the remote modules is demonstrated to play a crucial role to sustain the autonomy of these systems. The presented open-source development platform invites the signal proce"},"claims":{"count":0,"items":[],"snapshot_sha256":"258153158e38e3291e3d48162225fcdb2d5a3ed65a07baac614ab91432fd4f57"},"source":{"id":"1901.06836","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":"2026-05-17T23:55:48Z","supersedes":[],"prev_event":null,"signature":{"signature_status":"signed_v1","algorithm":"ed25519","key_id":"pith-v1-2026-05","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54","signature_b64":"FnpTKDGwgq7mMjR6ze4B3nr7P9/OSHnphMM43a6bKuP6J+Uv+NCY3yEYcp232OeAWMOE1ZkUto5GNfe+l4MfAA==","signed_message":"open_graph_event_sha256_bytes","signed_at":"2026-05-31T23:36:59.866598Z"},"content_sha256":"f6b98c527e3143e1a60ed5a059e298c388f4a0d6eeb448eee40ad4d20ef66cb7","schema_version":"1.0","event_id":"sha256:f6b98c527e3143e1a60ed5a059e298c388f4a0d6eeb448eee40ad4d20ef66cb7"}],"timestamp_proofs":[],"mirror_hints":[{"mirror_type":"https","name":"Pith Resolver","base_url":"https://pith.science","bundle_url":"https://pith.science/pith/67WGQ5MG5EAS2CN4DUYWSLGI2K/bundle.json","state_url":"https://pith.science/pith/67WGQ5MG5EAS2CN4DUYWSLGI2K/state.json","well_known_bundle_url":"https://pith.science/.well-known/pith/67WGQ5MG5EAS2CN4DUYWSLGI2K/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":"2026-05-31T23:36:59Z","links":{"resolver":"https://pith.science/pith/67WGQ5MG5EAS2CN4DUYWSLGI2K","bundle":"https://pith.science/pith/67WGQ5MG5EAS2CN4DUYWSLGI2K/bundle.json","state":"https://pith.science/pith/67WGQ5MG5EAS2CN4DUYWSLGI2K/state.json","well_known_bundle":"https://pith.science/.well-known/pith/67WGQ5MG5EAS2CN4DUYWSLGI2K/bundle.json"},"state":{"state_type":"pith_open_graph_state","state_version":"1.0","pith_number":"pith:2019:67WGQ5MG5EAS2CN4DUYWSLGI2K","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":"957cc93f8b580013ccc30e658e81af726b276067a93c0ef3ae56326763a3cdd8","cross_cats_sorted":[],"license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"eess.SP","submitted_at":"2019-01-21T09:24:25Z","title_canon_sha256":"981ffa9947f3b28441f87e0300ec70fa127c54840cfa26104a6f8e4d0cd1f216"},"schema_version":"1.0","source":{"id":"1901.06836","kind":"arxiv","version":1}},"source_aliases":[{"alias_kind":"arxiv","alias_value":"1901.06836","created_at":"2026-05-17T23:55:48Z"},{"alias_kind":"arxiv_version","alias_value":"1901.06836v1","created_at":"2026-05-17T23:55:48Z"},{"alias_kind":"doi","alias_value":"10.48550/arxiv.1901.06836","created_at":"2026-05-17T23:55:48Z"},{"alias_kind":"pith_short_12","alias_value":"67WGQ5MG5EAS","created_at":"2026-05-18T12:33:10Z"},{"alias_kind":"pith_short_16","alias_value":"67WGQ5MG5EAS2CN4","created_at":"2026-05-18T12:33:10Z"},{"alias_kind":"pith_short_8","alias_value":"67WGQ5MG","created_at":"2026-05-18T12:33:10Z"}],"graph_snapshots":[{"event_id":"sha256:f6b98c527e3143e1a60ed5a059e298c388f4a0d6eeb448eee40ad4d20ef66cb7","target":"graph","created_at":"2026-05-17T23:55:48Z","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":"Long range wireless connectivity opens the door for new IoT applications. Low energy consumption is essential to enable long autonomy of devices powered by batteries or even relying on harvested energy. This paper introduces technologies for long-distance interaction with energy-constraint embedded devices. It proposes sleepy strategies for power management for the platform and the transmission. Adequate signal processing on the remote modules is demonstrated to play a crucial role to sustain the autonomy of these systems. The presented open-source development platform invites the signal proce","authors_text":"Bart Thoen, Geoffrey Ottoy, Gilles Callebaut, Guus Leenders, Liesbet Van der Perre, Lieven De Strycker","cross_cats":[],"headline":"","license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"eess.SP","submitted_at":"2019-01-21T09:24:25Z","title":"Remote IoT devices: sleepy strategies and signal processing to the rescue for a long battery life"},"references":{"count":0,"internal_anchors":0,"resolved_work":0,"sample":[],"snapshot_sha256":"258153158e38e3291e3d48162225fcdb2d5a3ed65a07baac614ab91432fd4f57"},"source":{"id":"1901.06836","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:f75391f914797e575988c66f45b3ebe6ba9328781a5611b236786d0c991b50d5","target":"record","created_at":"2026-05-17T23:55:48Z","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":"957cc93f8b580013ccc30e658e81af726b276067a93c0ef3ae56326763a3cdd8","cross_cats_sorted":[],"license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"eess.SP","submitted_at":"2019-01-21T09:24:25Z","title_canon_sha256":"981ffa9947f3b28441f87e0300ec70fa127c54840cfa26104a6f8e4d0cd1f216"},"schema_version":"1.0","source":{"id":"1901.06836","kind":"arxiv","version":1}},"canonical_sha256":"f7ec687586e9012d09bc1d31692cc8d2b92fa160448134a4c738b3b59a5a8a38","receipt":{"algorithm":"ed25519","builder_version":"pith-number-builder-2026-05-17-v1","canonical_sha256":"f7ec687586e9012d09bc1d31692cc8d2b92fa160448134a4c738b3b59a5a8a38","first_computed_at":"2026-05-17T23:55:48.997086Z","key_id":"pith-v1-2026-05","kind":"pith_receipt","last_reissued_at":"2026-05-17T23:55:48.997086Z","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54","receipt_version":"0.3","signature_b64":"K3KEWVOrzt04k/0E5BCVqFz4hHc0taE4r+1L26Ln/+WipKu/qVTyS8QRbmjXaTL6qmDGof6Mz/yd/ixo+xF5CA==","signature_status":"signed_v1","signed_at":"2026-05-17T23:55:48.997663Z","signed_message":"canonical_sha256_bytes"},"source_id":"1901.06836","source_kind":"arxiv","source_version":1}}},"equivocations":[],"invalid_events":[],"applied_event_ids":["sha256:f75391f914797e575988c66f45b3ebe6ba9328781a5611b236786d0c991b50d5","sha256:f6b98c527e3143e1a60ed5a059e298c388f4a0d6eeb448eee40ad4d20ef66cb7"],"state_sha256":"1cfe0556afac20b52907cbd419b1ab794b8804d89ff27f7def6c3bb5852d9fe4"},"bundle_signature":{"signature_status":"signed_v1","algorithm":"ed25519","key_id":"pith-v1-2026-05","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54","signature_b64":"gZk7QNeNBj89n/iq5zXolGYPoHeRvRSiOCGSzT52wEkR6Yiqc6x/qSZwN7jfpB9hU7vlX1+RNpWrylExy9pQBQ==","signed_message":"bundle_sha256_bytes","signed_at":"2026-05-31T23:36:59.870064Z","bundle_sha256":"3596ca761f72647e656522622f964148c96847d80e84d33bb0502b53c19e0874"}}