{"bundle_type":"pith_open_graph_bundle","bundle_version":"1.0","pith_number":"pith:2022:TAEWPB3EFZKLNLU7CVYI5YJEOP","short_pith_number":"pith:TAEWPB3E","canonical_record":{"source":{"id":"2206.07008","kind":"arxiv","version":1},"metadata":{"license":"http://creativecommons.org/licenses/by/4.0/","primary_cat":"cs.IT","submitted_at":"2022-06-08T03:06:55Z","cross_cats_sorted":["eess.SP","math.IT"],"title_canon_sha256":"8e534579e470829604290858d1d68d1acd57a800f1c3a512a40fa85625a2564e","abstract_canon_sha256":"abf1185ebbad44e127bae0eeff2c6da5f35a55b681ee67ac87d4ac2b3c61c984"},"schema_version":"1.0"},"canonical_sha256":"98096787642e54b6ae9f15708ee12473d8fa1f2800894457e6baaf91ac327338","source":{"kind":"arxiv","id":"2206.07008","version":1},"source_aliases":[{"alias_kind":"arxiv","alias_value":"2206.07008","created_at":"2026-07-05T04:39:39Z"},{"alias_kind":"arxiv_version","alias_value":"2206.07008v1","created_at":"2026-07-05T04:39:39Z"},{"alias_kind":"doi","alias_value":"10.48550/arxiv.2206.07008","created_at":"2026-07-05T04:39:39Z"},{"alias_kind":"pith_short_12","alias_value":"TAEWPB3EFZKL","created_at":"2026-07-05T04:39:39Z"},{"alias_kind":"pith_short_16","alias_value":"TAEWPB3EFZKLNLU7","created_at":"2026-07-05T04:39:39Z"},{"alias_kind":"pith_short_8","alias_value":"TAEWPB3E","created_at":"2026-07-05T04:39:39Z"}],"events":[{"event_type":"record_created","subject_pith_number":"pith:2022:TAEWPB3EFZKLNLU7CVYI5YJEOP","target":"record","payload":{"canonical_record":{"source":{"id":"2206.07008","kind":"arxiv","version":1},"metadata":{"license":"http://creativecommons.org/licenses/by/4.0/","primary_cat":"cs.IT","submitted_at":"2022-06-08T03:06:55Z","cross_cats_sorted":["eess.SP","math.IT"],"title_canon_sha256":"8e534579e470829604290858d1d68d1acd57a800f1c3a512a40fa85625a2564e","abstract_canon_sha256":"abf1185ebbad44e127bae0eeff2c6da5f35a55b681ee67ac87d4ac2b3c61c984"},"schema_version":"1.0"},"canonical_sha256":"98096787642e54b6ae9f15708ee12473d8fa1f2800894457e6baaf91ac327338","receipt":{"kind":"pith_receipt","key_id":"pith-v1-2026-05","algorithm":"ed25519","signed_at":"2026-07-05T04:39:39.066417Z","signature_b64":"AYaiDl5huC9KpvaQwBK5oK9DFoYNbB1DLEQ9PDT+0OOoZo35zlRc9bf/u2bK4P+Zm1xnqNfNCELADEghaOCJAw==","signed_message":"canonical_sha256_bytes","builder_version":"pith-number-builder-2026-05-17-v1","receipt_version":"0.3","canonical_sha256":"98096787642e54b6ae9f15708ee12473d8fa1f2800894457e6baaf91ac327338","last_reissued_at":"2026-07-05T04:39:39.066024Z","signature_status":"signed_v1","first_computed_at":"2026-07-05T04:39:39.066024Z","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54"},"source_kind":"arxiv","source_id":"2206.07008","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":"2026-07-05T04:39:39Z","supersedes":[],"prev_event":null,"signature":{"signature_status":"signed_v1","algorithm":"ed25519","key_id":"pith-v1-2026-05","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54","signature_b64":"e6y1GgoYg9MjId1Y9T0Yvlu6ueWH/mf2dFRrBzQir7f7lVfdpAaSZc/GNbQGLwgMOgM8G/mbmxnWTwCD2iRzAg==","signed_message":"open_graph_event_sha256_bytes","signed_at":"2026-07-07T08:48:32.030595Z"},"content_sha256":"ea2090be3427e345f4a389072115a756de85e5004254fb03486f1f5bb2979af1","schema_version":"1.0","event_id":"sha256:ea2090be3427e345f4a389072115a756de85e5004254fb03486f1f5bb2979af1"},{"event_type":"graph_snapshot","subject_pith_number":"pith:2022:TAEWPB3EFZKLNLU7CVYI5YJEOP","target":"graph","payload":{"graph_snapshot":{"paper":{"title":"Constellation Design for Deep Joint Source-Channel Coding","license":"http://creativecommons.org/licenses/by/4.0/","headline":"","cross_cats":["eess.SP","math.IT"],"primary_cat":"cs.IT","authors_text":"Jiahui Li, Mengyang Wang, Mengyao Ma, Xiaopeng Fan","submitted_at":"2022-06-08T03:06:55Z","abstract_excerpt":"Deep learning-based joint source-channel coding (JSCC) has shown excellent performance in image and feature transmission. However, the output values of the JSCC encoder are continuous, which makes the constellation of modulation complex and dense. It is hard and expensive to design radio frequency chains for transmitting such full-resolution constellation points. In this paper, two methods of mapping the full-resolution constellation to finite constellation are proposed for real system implementation. The constellation mapping results of the proposed methods correspond to regular constellation"},"claims":{"count":0,"items":[],"snapshot_sha256":"258153158e38e3291e3d48162225fcdb2d5a3ed65a07baac614ab91432fd4f57"},"source":{"id":"2206.07008","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/2206.07008/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":"2026-07-05T04:39:39Z","supersedes":[],"prev_event":null,"signature":{"signature_status":"signed_v1","algorithm":"ed25519","key_id":"pith-v1-2026-05","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54","signature_b64":"cV7ipiFXVq9ccm7mYmN255/Ek7pErx05dkJBPa7XwnL+2Jthk+EmFQyMp/EeFLUvq3h5Z5Djm/buFfE1UtZ/Ag==","signed_message":"open_graph_event_sha256_bytes","signed_at":"2026-07-07T08:48:32.030975Z"},"content_sha256":"8bdd49a11d86c946022f5a688de80a7d5cc93a071e207754a36c2c2c3e3fd098","schema_version":"1.0","event_id":"sha256:8bdd49a11d86c946022f5a688de80a7d5cc93a071e207754a36c2c2c3e3fd098"}],"timestamp_proofs":[],"mirror_hints":[{"mirror_type":"https","name":"Pith Resolver","base_url":"https://pith.science","bundle_url":"https://pith.science/pith/TAEWPB3EFZKLNLU7CVYI5YJEOP/bundle.json","state_url":"https://pith.science/pith/TAEWPB3EFZKLNLU7CVYI5YJEOP/state.json","well_known_bundle_url":"https://pith.science/.well-known/pith/TAEWPB3EFZKLNLU7CVYI5YJEOP/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":"2026-07-07T08:48:32Z","links":{"resolver":"https://pith.science/pith/TAEWPB3EFZKLNLU7CVYI5YJEOP","bundle":"https://pith.science/pith/TAEWPB3EFZKLNLU7CVYI5YJEOP/bundle.json","state":"https://pith.science/pith/TAEWPB3EFZKLNLU7CVYI5YJEOP/state.json","well_known_bundle":"https://pith.science/.well-known/pith/TAEWPB3EFZKLNLU7CVYI5YJEOP/bundle.json"},"state":{"state_type":"pith_open_graph_state","state_version":"1.0","pith_number":"pith:2022:TAEWPB3EFZKLNLU7CVYI5YJEOP","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":"abf1185ebbad44e127bae0eeff2c6da5f35a55b681ee67ac87d4ac2b3c61c984","cross_cats_sorted":["eess.SP","math.IT"],"license":"http://creativecommons.org/licenses/by/4.0/","primary_cat":"cs.IT","submitted_at":"2022-06-08T03:06:55Z","title_canon_sha256":"8e534579e470829604290858d1d68d1acd57a800f1c3a512a40fa85625a2564e"},"schema_version":"1.0","source":{"id":"2206.07008","kind":"arxiv","version":1}},"source_aliases":[{"alias_kind":"arxiv","alias_value":"2206.07008","created_at":"2026-07-05T04:39:39Z"},{"alias_kind":"arxiv_version","alias_value":"2206.07008v1","created_at":"2026-07-05T04:39:39Z"},{"alias_kind":"doi","alias_value":"10.48550/arxiv.2206.07008","created_at":"2026-07-05T04:39:39Z"},{"alias_kind":"pith_short_12","alias_value":"TAEWPB3EFZKL","created_at":"2026-07-05T04:39:39Z"},{"alias_kind":"pith_short_16","alias_value":"TAEWPB3EFZKLNLU7","created_at":"2026-07-05T04:39:39Z"},{"alias_kind":"pith_short_8","alias_value":"TAEWPB3E","created_at":"2026-07-05T04:39:39Z"}],"graph_snapshots":[{"event_id":"sha256:8bdd49a11d86c946022f5a688de80a7d5cc93a071e207754a36c2c2c3e3fd098","target":"graph","created_at":"2026-07-05T04:39:39Z","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/2206.07008/integrity.json","findings":[],"snapshot_sha256":"c28c3603d3b5d939e8dc4c7e95fa8dfce3d595e45f758748cecf8e644a296938","summary":{"advisory":0,"by_detector":{},"critical":0,"informational":0}},"paper":{"abstract_excerpt":"Deep learning-based joint source-channel coding (JSCC) has shown excellent performance in image and feature transmission. However, the output values of the JSCC encoder are continuous, which makes the constellation of modulation complex and dense. It is hard and expensive to design radio frequency chains for transmitting such full-resolution constellation points. In this paper, two methods of mapping the full-resolution constellation to finite constellation are proposed for real system implementation. The constellation mapping results of the proposed methods correspond to regular constellation","authors_text":"Jiahui Li, Mengyang Wang, Mengyao Ma, Xiaopeng Fan","cross_cats":["eess.SP","math.IT"],"headline":"","license":"http://creativecommons.org/licenses/by/4.0/","primary_cat":"cs.IT","submitted_at":"2022-06-08T03:06:55Z","title":"Constellation Design for Deep Joint Source-Channel Coding"},"references":{"count":0,"internal_anchors":0,"resolved_work":0,"sample":[],"snapshot_sha256":"258153158e38e3291e3d48162225fcdb2d5a3ed65a07baac614ab91432fd4f57"},"source":{"id":"2206.07008","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:ea2090be3427e345f4a389072115a756de85e5004254fb03486f1f5bb2979af1","target":"record","created_at":"2026-07-05T04:39:39Z","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":"abf1185ebbad44e127bae0eeff2c6da5f35a55b681ee67ac87d4ac2b3c61c984","cross_cats_sorted":["eess.SP","math.IT"],"license":"http://creativecommons.org/licenses/by/4.0/","primary_cat":"cs.IT","submitted_at":"2022-06-08T03:06:55Z","title_canon_sha256":"8e534579e470829604290858d1d68d1acd57a800f1c3a512a40fa85625a2564e"},"schema_version":"1.0","source":{"id":"2206.07008","kind":"arxiv","version":1}},"canonical_sha256":"98096787642e54b6ae9f15708ee12473d8fa1f2800894457e6baaf91ac327338","receipt":{"algorithm":"ed25519","builder_version":"pith-number-builder-2026-05-17-v1","canonical_sha256":"98096787642e54b6ae9f15708ee12473d8fa1f2800894457e6baaf91ac327338","first_computed_at":"2026-07-05T04:39:39.066024Z","key_id":"pith-v1-2026-05","kind":"pith_receipt","last_reissued_at":"2026-07-05T04:39:39.066024Z","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54","receipt_version":"0.3","signature_b64":"AYaiDl5huC9KpvaQwBK5oK9DFoYNbB1DLEQ9PDT+0OOoZo35zlRc9bf/u2bK4P+Zm1xnqNfNCELADEghaOCJAw==","signature_status":"signed_v1","signed_at":"2026-07-05T04:39:39.066417Z","signed_message":"canonical_sha256_bytes"},"source_id":"2206.07008","source_kind":"arxiv","source_version":1}}},"equivocations":[],"invalid_events":[],"applied_event_ids":["sha256:ea2090be3427e345f4a389072115a756de85e5004254fb03486f1f5bb2979af1","sha256:8bdd49a11d86c946022f5a688de80a7d5cc93a071e207754a36c2c2c3e3fd098"],"state_sha256":"14515dfb1e0a8f32f2e6521f941d3f277e0841e817179c9ffdfa2d57678017f0"},"bundle_signature":{"signature_status":"signed_v1","algorithm":"ed25519","key_id":"pith-v1-2026-05","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54","signature_b64":"VGc1KKLoa3w7+x/5ZtVQu20gYdU884M+FBaTmQWJhhzdPTImjqlKDnAdxVpclTM7vaAVzr43voUB2fngfauACQ==","signed_message":"bundle_sha256_bytes","signed_at":"2026-07-07T08:48:32.033031Z","bundle_sha256":"43ecdc851df221f4420eb083a7308578a87b98acc50c8cec7045d08e412b7b36"}}