{"bundle_type":"pith_open_graph_bundle","bundle_version":"1.0","pith_number":"pith:2015:AL67DBPA3Y6JZA5LS7KK5KXTEY","short_pith_number":"pith:AL67DBPA","canonical_record":{"source":{"id":"1511.00856","kind":"arxiv","version":1},"metadata":{"license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"cs.IT","submitted_at":"2015-11-03T11:13:20Z","cross_cats_sorted":["math.IT"],"title_canon_sha256":"35c0d77f9400ed58dbcbbebfdc15ae8bf96771c73331539ef535984c6061559d","abstract_canon_sha256":"034ba86f95a95b6c89c7321eb754cdfda51e6ebd053fea18eb17bbfd9cb2cdee"},"schema_version":"1.0"},"canonical_sha256":"02fdf185e0de3c9c83ab97d4aeaaf326201a2f0534b1cdf433bfdc7087245e9f","source":{"kind":"arxiv","id":"1511.00856","version":1},"source_aliases":[{"alias_kind":"arxiv","alias_value":"1511.00856","created_at":"2026-05-18T01:27:56Z"},{"alias_kind":"arxiv_version","alias_value":"1511.00856v1","created_at":"2026-05-18T01:27:56Z"},{"alias_kind":"doi","alias_value":"10.48550/arxiv.1511.00856","created_at":"2026-05-18T01:27:56Z"},{"alias_kind":"pith_short_12","alias_value":"AL67DBPA3Y6J","created_at":"2026-05-18T12:29:10Z"},{"alias_kind":"pith_short_16","alias_value":"AL67DBPA3Y6JZA5L","created_at":"2026-05-18T12:29:10Z"},{"alias_kind":"pith_short_8","alias_value":"AL67DBPA","created_at":"2026-05-18T12:29:10Z"}],"events":[{"event_type":"record_created","subject_pith_number":"pith:2015:AL67DBPA3Y6JZA5LS7KK5KXTEY","target":"record","payload":{"canonical_record":{"source":{"id":"1511.00856","kind":"arxiv","version":1},"metadata":{"license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"cs.IT","submitted_at":"2015-11-03T11:13:20Z","cross_cats_sorted":["math.IT"],"title_canon_sha256":"35c0d77f9400ed58dbcbbebfdc15ae8bf96771c73331539ef535984c6061559d","abstract_canon_sha256":"034ba86f95a95b6c89c7321eb754cdfda51e6ebd053fea18eb17bbfd9cb2cdee"},"schema_version":"1.0"},"canonical_sha256":"02fdf185e0de3c9c83ab97d4aeaaf326201a2f0534b1cdf433bfdc7087245e9f","receipt":{"kind":"pith_receipt","key_id":"pith-v1-2026-05","algorithm":"ed25519","signed_at":"2026-05-18T01:27:56.028725Z","signature_b64":"4VGYpfQJdXZus2gK0rxGULqVYc1vsLuFp8k2jRBb/+9rtReosFsUo86UZSKDWLZv5SPPE5IuSx61bkrX+j7VDg==","signed_message":"canonical_sha256_bytes","builder_version":"pith-number-builder-2026-05-17-v1","receipt_version":"0.3","canonical_sha256":"02fdf185e0de3c9c83ab97d4aeaaf326201a2f0534b1cdf433bfdc7087245e9f","last_reissued_at":"2026-05-18T01:27:56.027963Z","signature_status":"signed_v1","first_computed_at":"2026-05-18T01:27:56.027963Z","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54"},"source_kind":"arxiv","source_id":"1511.00856","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":"2026-05-18T01:27:56Z","supersedes":[],"prev_event":null,"signature":{"signature_status":"signed_v1","algorithm":"ed25519","key_id":"pith-v1-2026-05","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54","signature_b64":"0aQThy+8DfL/8Yp69QDRlnVRAAeW0XDkurv18GPYqKarwvvKNAhtQQUV1zz5vC1qcL4X6cxXY4zRm6fezncvCg==","signed_message":"open_graph_event_sha256_bytes","signed_at":"2026-08-24T01:11:45.059858Z"},"content_sha256":"58bf98e8a2a5f196a71b0843aca9bf5dc15ce0f3a1c3f2674ce9851b7aeb28e9","schema_version":"1.0","event_id":"sha256:58bf98e8a2a5f196a71b0843aca9bf5dc15ce0f3a1c3f2674ce9851b7aeb28e9"},{"event_type":"graph_snapshot","subject_pith_number":"pith:2015:AL67DBPA3Y6JZA5LS7KK5KXTEY","target":"graph","payload":{"graph_snapshot":{"paper":{"title":"Designing dedicated data compression for physics experiments within FPGA already used for data acquisition","license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","headline":"","cross_cats":["math.IT"],"primary_cat":"cs.IT","authors_text":"Grzegorz Korcyl, Jarek Duda","submitted_at":"2015-11-03T11:13:20Z","abstract_excerpt":"Physics experiments produce enormous amount of raw data, counted in petabytes per day. Hence, there is large effort to reduce this amount, mainly by using some filters. The situation can be improved by additionally applying some data compression techniques: removing redundancy and optimally encoding the actual information. Preferably, both filtering and data compression should fit in FPGA already used for data acquisition - reducing requirements of both data storage and networking architecture.\n  We will briefly explain and discuss some basic techniques, for a better focus applied to design a "},"claims":{"count":0,"items":[],"snapshot_sha256":"258153158e38e3291e3d48162225fcdb2d5a3ed65a07baac614ab91432fd4f57"},"source":{"id":"1511.00856","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":"2026-05-18T01:27:56Z","supersedes":[],"prev_event":null,"signature":{"signature_status":"signed_v1","algorithm":"ed25519","key_id":"pith-v1-2026-05","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54","signature_b64":"Y+bhJHOSCZz5UWy6jWVbuJTSnK5XdrUfVyNm8wMwhwm2464CABKeTeAo4seUWSC09Tdt0TEky3AlNL8zZY/yAA==","signed_message":"open_graph_event_sha256_bytes","signed_at":"2026-08-24T01:11:45.060305Z"},"content_sha256":"0c3e25994cb68b32e65fa4d029da0f09fd2114f8c58f2f69cf598512e34d09c4","schema_version":"1.0","event_id":"sha256:0c3e25994cb68b32e65fa4d029da0f09fd2114f8c58f2f69cf598512e34d09c4"}],"timestamp_proofs":[],"mirror_hints":[{"mirror_type":"https","name":"Pith Resolver","base_url":"https://pith.science","bundle_url":"https://pith.science/pith/AL67DBPA3Y6JZA5LS7KK5KXTEY/bundle.json","state_url":"https://pith.science/pith/AL67DBPA3Y6JZA5LS7KK5KXTEY/state.json","well_known_bundle_url":"https://pith.science/.well-known/pith/AL67DBPA3Y6JZA5LS7KK5KXTEY/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":"2026-08-24T01:11:45Z","links":{"resolver":"https://pith.science/pith/AL67DBPA3Y6JZA5LS7KK5KXTEY","bundle":"https://pith.science/pith/AL67DBPA3Y6JZA5LS7KK5KXTEY/bundle.json","state":"https://pith.science/pith/AL67DBPA3Y6JZA5LS7KK5KXTEY/state.json","well_known_bundle":"https://pith.science/.well-known/pith/AL67DBPA3Y6JZA5LS7KK5KXTEY/bundle.json"},"state":{"state_type":"pith_open_graph_state","state_version":"1.0","pith_number":"pith:2015:AL67DBPA3Y6JZA5LS7KK5KXTEY","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":"034ba86f95a95b6c89c7321eb754cdfda51e6ebd053fea18eb17bbfd9cb2cdee","cross_cats_sorted":["math.IT"],"license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"cs.IT","submitted_at":"2015-11-03T11:13:20Z","title_canon_sha256":"35c0d77f9400ed58dbcbbebfdc15ae8bf96771c73331539ef535984c6061559d"},"schema_version":"1.0","source":{"id":"1511.00856","kind":"arxiv","version":1}},"source_aliases":[{"alias_kind":"arxiv","alias_value":"1511.00856","created_at":"2026-05-18T01:27:56Z"},{"alias_kind":"arxiv_version","alias_value":"1511.00856v1","created_at":"2026-05-18T01:27:56Z"},{"alias_kind":"doi","alias_value":"10.48550/arxiv.1511.00856","created_at":"2026-05-18T01:27:56Z"},{"alias_kind":"pith_short_12","alias_value":"AL67DBPA3Y6J","created_at":"2026-05-18T12:29:10Z"},{"alias_kind":"pith_short_16","alias_value":"AL67DBPA3Y6JZA5L","created_at":"2026-05-18T12:29:10Z"},{"alias_kind":"pith_short_8","alias_value":"AL67DBPA","created_at":"2026-05-18T12:29:10Z"}],"graph_snapshots":[{"event_id":"sha256:0c3e25994cb68b32e65fa4d029da0f09fd2114f8c58f2f69cf598512e34d09c4","target":"graph","created_at":"2026-05-18T01:27:56Z","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":"Physics experiments produce enormous amount of raw data, counted in petabytes per day. Hence, there is large effort to reduce this amount, mainly by using some filters. The situation can be improved by additionally applying some data compression techniques: removing redundancy and optimally encoding the actual information. Preferably, both filtering and data compression should fit in FPGA already used for data acquisition - reducing requirements of both data storage and networking architecture.\n  We will briefly explain and discuss some basic techniques, for a better focus applied to design a ","authors_text":"Grzegorz Korcyl, Jarek Duda","cross_cats":["math.IT"],"headline":"","license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"cs.IT","submitted_at":"2015-11-03T11:13:20Z","title":"Designing dedicated data compression for physics experiments within FPGA already used for data acquisition"},"references":{"count":0,"internal_anchors":0,"resolved_work":0,"sample":[],"snapshot_sha256":"258153158e38e3291e3d48162225fcdb2d5a3ed65a07baac614ab91432fd4f57"},"source":{"id":"1511.00856","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":"sha256:58bf98e8a2a5f196a71b0843aca9bf5dc15ce0f3a1c3f2674ce9851b7aeb28e9","target":"record","created_at":"2026-05-18T01:27:56Z","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":"034ba86f95a95b6c89c7321eb754cdfda51e6ebd053fea18eb17bbfd9cb2cdee","cross_cats_sorted":["math.IT"],"license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"cs.IT","submitted_at":"2015-11-03T11:13:20Z","title_canon_sha256":"35c0d77f9400ed58dbcbbebfdc15ae8bf96771c73331539ef535984c6061559d"},"schema_version":"1.0","source":{"id":"1511.00856","kind":"arxiv","version":1}},"canonical_sha256":"02fdf185e0de3c9c83ab97d4aeaaf326201a2f0534b1cdf433bfdc7087245e9f","receipt":{"algorithm":"ed25519","builder_version":"pith-number-builder-2026-05-17-v1","canonical_sha256":"02fdf185e0de3c9c83ab97d4aeaaf326201a2f0534b1cdf433bfdc7087245e9f","first_computed_at":"2026-05-18T01:27:56.027963Z","key_id":"pith-v1-2026-05","kind":"pith_receipt","last_reissued_at":"2026-05-18T01:27:56.027963Z","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54","receipt_version":"0.3","signature_b64":"4VGYpfQJdXZus2gK0rxGULqVYc1vsLuFp8k2jRBb/+9rtReosFsUo86UZSKDWLZv5SPPE5IuSx61bkrX+j7VDg==","signature_status":"signed_v1","signed_at":"2026-05-18T01:27:56.028725Z","signed_message":"canonical_sha256_bytes"},"source_id":"1511.00856","source_kind":"arxiv","source_version":1}}},"equivocations":[],"invalid_events":[],"applied_event_ids":["sha256:58bf98e8a2a5f196a71b0843aca9bf5dc15ce0f3a1c3f2674ce9851b7aeb28e9","sha256:0c3e25994cb68b32e65fa4d029da0f09fd2114f8c58f2f69cf598512e34d09c4"],"state_sha256":"39ab5529da70119e96cffa90ca416f70dfedbe12befa70245bb4f4484d90671d"},"bundle_signature":{"signature_status":"signed_v1","algorithm":"ed25519","key_id":"pith-v1-2026-05","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54","signature_b64":"Ej5vUe6l/CZEgw7X2NA9+hDjtCp4C2iY/jpR68J+Db5ipdNep1xic/jGPg/Dhyess5xOddbL5p0P5ZD/YchuDg==","signed_message":"bundle_sha256_bytes","signed_at":"2026-08-24T01:11:45.064923Z","bundle_sha256":"1c9f527c14b1c6326080294509cc31a8f534a1ac183d78a65c28e4232ac02651"}}