{"bundle_type":"pith_open_graph_bundle","bundle_version":"1.0","pith_number":"pith:2012:ZQI27RTUE2SBX6FYUJJAM4O64E","short_pith_number":"pith:ZQI27RTU","canonical_record":{"source":{"id":"1210.5342","kind":"arxiv","version":1},"metadata":{"license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"cs.ET","submitted_at":"2012-10-19T08:27:38Z","cross_cats_sorted":["cs.AR"],"title_canon_sha256":"33fb6ae91faf5b65e13fa7326cf530abe2ccfc69647f6de9a3b9d04d5b388868","abstract_canon_sha256":"0919e4338e8ff695ec5eb0aea4bb1498da282f627ad0ea76ee8702f45538686c"},"schema_version":"1.0"},"canonical_sha256":"cc11afc67426a41bf8b8a2520671dee123c92d9b5a744b8909e7af8e5a66fe98","source":{"kind":"arxiv","id":"1210.5342","version":1},"source_aliases":[{"alias_kind":"arxiv","alias_value":"1210.5342","created_at":"2026-05-18T03:42:45Z"},{"alias_kind":"arxiv_version","alias_value":"1210.5342v1","created_at":"2026-05-18T03:42:45Z"},{"alias_kind":"doi","alias_value":"10.48550/arxiv.1210.5342","created_at":"2026-05-18T03:42:45Z"},{"alias_kind":"pith_short_12","alias_value":"ZQI27RTUE2SB","created_at":"2026-05-18T12:27:30Z"},{"alias_kind":"pith_short_16","alias_value":"ZQI27RTUE2SBX6FY","created_at":"2026-05-18T12:27:30Z"},{"alias_kind":"pith_short_8","alias_value":"ZQI27RTU","created_at":"2026-05-18T12:27:30Z"}],"events":[{"event_type":"record_created","subject_pith_number":"pith:2012:ZQI27RTUE2SBX6FYUJJAM4O64E","target":"record","payload":{"canonical_record":{"source":{"id":"1210.5342","kind":"arxiv","version":1},"metadata":{"license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"cs.ET","submitted_at":"2012-10-19T08:27:38Z","cross_cats_sorted":["cs.AR"],"title_canon_sha256":"33fb6ae91faf5b65e13fa7326cf530abe2ccfc69647f6de9a3b9d04d5b388868","abstract_canon_sha256":"0919e4338e8ff695ec5eb0aea4bb1498da282f627ad0ea76ee8702f45538686c"},"schema_version":"1.0"},"canonical_sha256":"cc11afc67426a41bf8b8a2520671dee123c92d9b5a744b8909e7af8e5a66fe98","receipt":{"kind":"pith_receipt","key_id":"pith-v1-2026-05","algorithm":"ed25519","signed_at":"2026-05-18T03:42:45.487992Z","signature_b64":"KUv5TPXUVrmnonY1fr4tK4lUwGu1j8be6TbRO66i2Y5CZZDnivFEJprbfNwPELAhKyiuHpOa38itehFIMcs4CQ==","signed_message":"canonical_sha256_bytes","builder_version":"pith-number-builder-2026-05-17-v1","receipt_version":"0.3","canonical_sha256":"cc11afc67426a41bf8b8a2520671dee123c92d9b5a744b8909e7af8e5a66fe98","last_reissued_at":"2026-05-18T03:42:45.487381Z","signature_status":"signed_v1","first_computed_at":"2026-05-18T03:42:45.487381Z","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54"},"source_kind":"arxiv","source_id":"1210.5342","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":"2026-05-18T03:42:45Z","supersedes":[],"prev_event":null,"signature":{"signature_status":"signed_v1","algorithm":"ed25519","key_id":"pith-v1-2026-05","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54","signature_b64":"FAKkFKBdF51+WMj7w5qGqugy3CZuTXV7pI/Cv3Yf7gGNvhfM4DpQbkqkbF556uxz7jD0TdwD8nd91Obe3Z6XAw==","signed_message":"open_graph_event_sha256_bytes","signed_at":"2026-06-02T02:10:38.975866Z"},"content_sha256":"e41ee674bccd06c9e613854bc777f30c75103e35f5d475389a251d652af0c93c","schema_version":"1.0","event_id":"sha256:e41ee674bccd06c9e613854bc777f30c75103e35f5d475389a251d652af0c93c"},{"event_type":"graph_snapshot","subject_pith_number":"pith:2012:ZQI27RTUE2SBX6FYUJJAM4O64E","target":"graph","payload":{"graph_snapshot":{"paper":{"title":"Design & Simulation of 128x Interpolator Filter","license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","headline":"","cross_cats":["cs.AR"],"primary_cat":"cs.ET","authors_text":"Rahul Sinha, Sonika Arora","submitted_at":"2012-10-19T08:27:38Z","abstract_excerpt":"This paper presents the design consideration and simulation of interpolator of OSR 128. The proposed structure uses the half band filers & Comb/Sinc filter. Experimental result shows that proposed interpolator achieves the design specification, and also has good noise rejection capabilities. The interpolator accepts the input at 44.1 kHz for applications like CD & DVD audio. The interpolation filter can be applied to the delta sigma DAC. The related work is done with the MATLAB & XILINX ISE simulators. The maximum operating frequency is achieved as 34.584 MHz."},"claims":{"count":0,"items":[],"snapshot_sha256":"258153158e38e3291e3d48162225fcdb2d5a3ed65a07baac614ab91432fd4f57"},"source":{"id":"1210.5342","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":"2026-05-18T03:42:45Z","supersedes":[],"prev_event":null,"signature":{"signature_status":"signed_v1","algorithm":"ed25519","key_id":"pith-v1-2026-05","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54","signature_b64":"gi1yoOg4KdXgeBzEUQ0qruBkjEOhXzYpAXalD/XHsv8p2CQI6XPFfCdrlDY4Ulm+HBDY+eP5LRE6SzIyB9e5Aw==","signed_message":"open_graph_event_sha256_bytes","signed_at":"2026-06-02T02:10:38.976220Z"},"content_sha256":"9c1adc5bc05fd8266759672166e6f3000d0b444fb13a2f3ab0589dbfaf2557d3","schema_version":"1.0","event_id":"sha256:9c1adc5bc05fd8266759672166e6f3000d0b444fb13a2f3ab0589dbfaf2557d3"}],"timestamp_proofs":[],"mirror_hints":[{"mirror_type":"https","name":"Pith Resolver","base_url":"https://pith.science","bundle_url":"https://pith.science/pith/ZQI27RTUE2SBX6FYUJJAM4O64E/bundle.json","state_url":"https://pith.science/pith/ZQI27RTUE2SBX6FYUJJAM4O64E/state.json","well_known_bundle_url":"https://pith.science/.well-known/pith/ZQI27RTUE2SBX6FYUJJAM4O64E/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":"2026-06-02T02:10:38Z","links":{"resolver":"https://pith.science/pith/ZQI27RTUE2SBX6FYUJJAM4O64E","bundle":"https://pith.science/pith/ZQI27RTUE2SBX6FYUJJAM4O64E/bundle.json","state":"https://pith.science/pith/ZQI27RTUE2SBX6FYUJJAM4O64E/state.json","well_known_bundle":"https://pith.science/.well-known/pith/ZQI27RTUE2SBX6FYUJJAM4O64E/bundle.json"},"state":{"state_type":"pith_open_graph_state","state_version":"1.0","pith_number":"pith:2012:ZQI27RTUE2SBX6FYUJJAM4O64E","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":"0919e4338e8ff695ec5eb0aea4bb1498da282f627ad0ea76ee8702f45538686c","cross_cats_sorted":["cs.AR"],"license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"cs.ET","submitted_at":"2012-10-19T08:27:38Z","title_canon_sha256":"33fb6ae91faf5b65e13fa7326cf530abe2ccfc69647f6de9a3b9d04d5b388868"},"schema_version":"1.0","source":{"id":"1210.5342","kind":"arxiv","version":1}},"source_aliases":[{"alias_kind":"arxiv","alias_value":"1210.5342","created_at":"2026-05-18T03:42:45Z"},{"alias_kind":"arxiv_version","alias_value":"1210.5342v1","created_at":"2026-05-18T03:42:45Z"},{"alias_kind":"doi","alias_value":"10.48550/arxiv.1210.5342","created_at":"2026-05-18T03:42:45Z"},{"alias_kind":"pith_short_12","alias_value":"ZQI27RTUE2SB","created_at":"2026-05-18T12:27:30Z"},{"alias_kind":"pith_short_16","alias_value":"ZQI27RTUE2SBX6FY","created_at":"2026-05-18T12:27:30Z"},{"alias_kind":"pith_short_8","alias_value":"ZQI27RTU","created_at":"2026-05-18T12:27:30Z"}],"graph_snapshots":[{"event_id":"sha256:9c1adc5bc05fd8266759672166e6f3000d0b444fb13a2f3ab0589dbfaf2557d3","target":"graph","created_at":"2026-05-18T03:42:45Z","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":"This paper presents the design consideration and simulation of interpolator of OSR 128. The proposed structure uses the half band filers & Comb/Sinc filter. Experimental result shows that proposed interpolator achieves the design specification, and also has good noise rejection capabilities. The interpolator accepts the input at 44.1 kHz for applications like CD & DVD audio. The interpolation filter can be applied to the delta sigma DAC. The related work is done with the MATLAB & XILINX ISE simulators. The maximum operating frequency is achieved as 34.584 MHz.","authors_text":"Rahul Sinha, Sonika Arora","cross_cats":["cs.AR"],"headline":"","license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"cs.ET","submitted_at":"2012-10-19T08:27:38Z","title":"Design & Simulation of 128x Interpolator Filter"},"references":{"count":0,"internal_anchors":0,"resolved_work":0,"sample":[],"snapshot_sha256":"258153158e38e3291e3d48162225fcdb2d5a3ed65a07baac614ab91432fd4f57"},"source":{"id":"1210.5342","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:e41ee674bccd06c9e613854bc777f30c75103e35f5d475389a251d652af0c93c","target":"record","created_at":"2026-05-18T03:42:45Z","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":"0919e4338e8ff695ec5eb0aea4bb1498da282f627ad0ea76ee8702f45538686c","cross_cats_sorted":["cs.AR"],"license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"cs.ET","submitted_at":"2012-10-19T08:27:38Z","title_canon_sha256":"33fb6ae91faf5b65e13fa7326cf530abe2ccfc69647f6de9a3b9d04d5b388868"},"schema_version":"1.0","source":{"id":"1210.5342","kind":"arxiv","version":1}},"canonical_sha256":"cc11afc67426a41bf8b8a2520671dee123c92d9b5a744b8909e7af8e5a66fe98","receipt":{"algorithm":"ed25519","builder_version":"pith-number-builder-2026-05-17-v1","canonical_sha256":"cc11afc67426a41bf8b8a2520671dee123c92d9b5a744b8909e7af8e5a66fe98","first_computed_at":"2026-05-18T03:42:45.487381Z","key_id":"pith-v1-2026-05","kind":"pith_receipt","last_reissued_at":"2026-05-18T03:42:45.487381Z","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54","receipt_version":"0.3","signature_b64":"KUv5TPXUVrmnonY1fr4tK4lUwGu1j8be6TbRO66i2Y5CZZDnivFEJprbfNwPELAhKyiuHpOa38itehFIMcs4CQ==","signature_status":"signed_v1","signed_at":"2026-05-18T03:42:45.487992Z","signed_message":"canonical_sha256_bytes"},"source_id":"1210.5342","source_kind":"arxiv","source_version":1}}},"equivocations":[],"invalid_events":[],"applied_event_ids":["sha256:e41ee674bccd06c9e613854bc777f30c75103e35f5d475389a251d652af0c93c","sha256:9c1adc5bc05fd8266759672166e6f3000d0b444fb13a2f3ab0589dbfaf2557d3"],"state_sha256":"5646f55e3608dff844b3731ce43fd83197fff3090b23e8a49dcf86a063dda4f1"},"bundle_signature":{"signature_status":"signed_v1","algorithm":"ed25519","key_id":"pith-v1-2026-05","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54","signature_b64":"Ske71oEHgGTJ4nFUEVFyv+OSEWPLAee9qgNkSTREA1b7U4AgtuMSqyG7z/wh1UN4tvA3/7CcUhgtldUZhfP/Bg==","signed_message":"bundle_sha256_bytes","signed_at":"2026-06-02T02:10:38.978593Z","bundle_sha256":"e259c234846e5656cb49454ab9b9c211f8cc4f247205c3f1d28a0b74a930b0d0"}}