{"bundle_type":"pith_open_graph_bundle","bundle_version":"1.0","pith_number":"pith:2021:64R62FZXZOC6L64RPDJFDOW2KB","short_pith_number":"pith:64R62FZX","canonical_record":{"source":{"id":"2105.04278","kind":"arxiv","version":1},"metadata":{"license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"cs.IT","submitted_at":"2021-05-10T11:36:16Z","cross_cats_sorted":["math.IT","stat.AP"],"title_canon_sha256":"1009f96796398aae1ad3fe8fd75ce9ccb6b1144577cfffe19512436c446f9edb","abstract_canon_sha256":"4801cad7571d827afa43a2a27ee2926490d2d56ca4a89013f22c74bcf4d15fd3"},"schema_version":"1.0"},"canonical_sha256":"f723ed1737cb85e5fb9178d251bada50539da89f6ffc4aaeccfedd0a77e2f499","source":{"kind":"arxiv","id":"2105.04278","version":1},"source_aliases":[{"alias_kind":"arxiv","alias_value":"2105.04278","created_at":"2026-07-05T02:38:55Z"},{"alias_kind":"arxiv_version","alias_value":"2105.04278v1","created_at":"2026-07-05T02:38:55Z"},{"alias_kind":"doi","alias_value":"10.48550/arxiv.2105.04278","created_at":"2026-07-05T02:38:55Z"},{"alias_kind":"pith_short_12","alias_value":"64R62FZXZOC6","created_at":"2026-07-05T02:38:55Z"},{"alias_kind":"pith_short_16","alias_value":"64R62FZXZOC6L64R","created_at":"2026-07-05T02:38:55Z"},{"alias_kind":"pith_short_8","alias_value":"64R62FZX","created_at":"2026-07-05T02:38:55Z"}],"events":[{"event_type":"record_created","subject_pith_number":"pith:2021:64R62FZXZOC6L64RPDJFDOW2KB","target":"record","payload":{"canonical_record":{"source":{"id":"2105.04278","kind":"arxiv","version":1},"metadata":{"license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"cs.IT","submitted_at":"2021-05-10T11:36:16Z","cross_cats_sorted":["math.IT","stat.AP"],"title_canon_sha256":"1009f96796398aae1ad3fe8fd75ce9ccb6b1144577cfffe19512436c446f9edb","abstract_canon_sha256":"4801cad7571d827afa43a2a27ee2926490d2d56ca4a89013f22c74bcf4d15fd3"},"schema_version":"1.0"},"canonical_sha256":"f723ed1737cb85e5fb9178d251bada50539da89f6ffc4aaeccfedd0a77e2f499","receipt":{"kind":"pith_receipt","key_id":"pith-v1-2026-05","algorithm":"ed25519","signed_at":"2026-07-05T02:38:55.562687Z","signature_b64":"nEFUy2by4mK2bQG95QAFQkqXp6A3xGgEiOfcYvJ9WwwGs+7cSPODrQDDZiZLz335WgQZ+zuTsfMpUpfDXrJaBg==","signed_message":"canonical_sha256_bytes","builder_version":"pith-number-builder-2026-05-17-v1","receipt_version":"0.3","canonical_sha256":"f723ed1737cb85e5fb9178d251bada50539da89f6ffc4aaeccfedd0a77e2f499","last_reissued_at":"2026-07-05T02:38:55.562349Z","signature_status":"signed_v1","first_computed_at":"2026-07-05T02:38:55.562349Z","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54"},"source_kind":"arxiv","source_id":"2105.04278","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":"2026-07-05T02:38:55Z","supersedes":[],"prev_event":null,"signature":{"signature_status":"signed_v1","algorithm":"ed25519","key_id":"pith-v1-2026-05","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54","signature_b64":"KDei7fOZXMC9xn/nbwIY+bv2nJCmdu8SWeIGtfB9CaWNkmA8B1pB69RCDZS7//TqkteHiO9h6TPLZHd8SV/yCg==","signed_message":"open_graph_event_sha256_bytes","signed_at":"2026-08-22T21:41:26.634500Z"},"content_sha256":"55d1cda69df5276c49274237cb706e9cfdd13b70a46161fc478234d32a09c095","schema_version":"1.0","event_id":"sha256:55d1cda69df5276c49274237cb706e9cfdd13b70a46161fc478234d32a09c095"},{"event_type":"graph_snapshot","subject_pith_number":"pith:2021:64R62FZXZOC6L64RPDJFDOW2KB","target":"graph","payload":{"graph_snapshot":{"paper":{"title":"A Rate-Distortion Framework for Characterizing Semantic Information","license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","headline":"","cross_cats":["math.IT","stat.AP"],"primary_cat":"cs.IT","authors_text":"H. Vincent Poor, Jiakun Liu, Wenyi Zhang","submitted_at":"2021-05-10T11:36:16Z","abstract_excerpt":"A rate-distortion problem motivated by the consideration of semantic information is formulated and solved. The starting point is to model an information source as a pair consisting of an intrinsic state which is not observable, corresponding to the semantic aspect of the source, and an extrinsic observation which is subject to lossy source coding. The proposed rate-distortion problem seeks a description of the information source, via encoding the extrinsic observation, under two distortion constraints, one for the intrinsic state and the other for the extrinsic observation. The corresponding s"},"claims":{"count":0,"items":[],"snapshot_sha256":"258153158e38e3291e3d48162225fcdb2d5a3ed65a07baac614ab91432fd4f57"},"source":{"id":"2105.04278","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/2105.04278/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":"2026-07-05T02:38:55Z","supersedes":[],"prev_event":null,"signature":{"signature_status":"signed_v1","algorithm":"ed25519","key_id":"pith-v1-2026-05","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54","signature_b64":"JLBHOCvzIEUUEmUZwxj17R3omN7lZddScj3ho0CX3vTSHJF98enjzSgpCH6A+eTPWHHl4TqevBJ06IrmKo4hCg==","signed_message":"open_graph_event_sha256_bytes","signed_at":"2026-08-22T21:41:26.635062Z"},"content_sha256":"9b3f71b8160b04104d56eed54c9b1110d801bec689bea2b1cfd6174c72988c3d","schema_version":"1.0","event_id":"sha256:9b3f71b8160b04104d56eed54c9b1110d801bec689bea2b1cfd6174c72988c3d"}],"timestamp_proofs":[],"mirror_hints":[{"mirror_type":"https","name":"Pith Resolver","base_url":"https://pith.science","bundle_url":"https://pith.science/pith/64R62FZXZOC6L64RPDJFDOW2KB/bundle.json","state_url":"https://pith.science/pith/64R62FZXZOC6L64RPDJFDOW2KB/state.json","well_known_bundle_url":"https://pith.science/.well-known/pith/64R62FZXZOC6L64RPDJFDOW2KB/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":"2026-08-22T21:41:26Z","links":{"resolver":"https://pith.science/pith/64R62FZXZOC6L64RPDJFDOW2KB","bundle":"https://pith.science/pith/64R62FZXZOC6L64RPDJFDOW2KB/bundle.json","state":"https://pith.science/pith/64R62FZXZOC6L64RPDJFDOW2KB/state.json","well_known_bundle":"https://pith.science/.well-known/pith/64R62FZXZOC6L64RPDJFDOW2KB/bundle.json"},"state":{"state_type":"pith_open_graph_state","state_version":"1.0","pith_number":"pith:2021:64R62FZXZOC6L64RPDJFDOW2KB","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":"4801cad7571d827afa43a2a27ee2926490d2d56ca4a89013f22c74bcf4d15fd3","cross_cats_sorted":["math.IT","stat.AP"],"license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"cs.IT","submitted_at":"2021-05-10T11:36:16Z","title_canon_sha256":"1009f96796398aae1ad3fe8fd75ce9ccb6b1144577cfffe19512436c446f9edb"},"schema_version":"1.0","source":{"id":"2105.04278","kind":"arxiv","version":1}},"source_aliases":[{"alias_kind":"arxiv","alias_value":"2105.04278","created_at":"2026-07-05T02:38:55Z"},{"alias_kind":"arxiv_version","alias_value":"2105.04278v1","created_at":"2026-07-05T02:38:55Z"},{"alias_kind":"doi","alias_value":"10.48550/arxiv.2105.04278","created_at":"2026-07-05T02:38:55Z"},{"alias_kind":"pith_short_12","alias_value":"64R62FZXZOC6","created_at":"2026-07-05T02:38:55Z"},{"alias_kind":"pith_short_16","alias_value":"64R62FZXZOC6L64R","created_at":"2026-07-05T02:38:55Z"},{"alias_kind":"pith_short_8","alias_value":"64R62FZX","created_at":"2026-07-05T02:38:55Z"}],"graph_snapshots":[{"event_id":"sha256:9b3f71b8160b04104d56eed54c9b1110d801bec689bea2b1cfd6174c72988c3d","target":"graph","created_at":"2026-07-05T02:38:55Z","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/2105.04278/integrity.json","findings":[],"snapshot_sha256":"c28c3603d3b5d939e8dc4c7e95fa8dfce3d595e45f758748cecf8e644a296938","summary":{"advisory":0,"by_detector":{},"critical":0,"informational":0}},"paper":{"abstract_excerpt":"A rate-distortion problem motivated by the consideration of semantic information is formulated and solved. The starting point is to model an information source as a pair consisting of an intrinsic state which is not observable, corresponding to the semantic aspect of the source, and an extrinsic observation which is subject to lossy source coding. The proposed rate-distortion problem seeks a description of the information source, via encoding the extrinsic observation, under two distortion constraints, one for the intrinsic state and the other for the extrinsic observation. The corresponding s","authors_text":"H. Vincent Poor, Jiakun Liu, Wenyi Zhang","cross_cats":["math.IT","stat.AP"],"headline":"","license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"cs.IT","submitted_at":"2021-05-10T11:36:16Z","title":"A Rate-Distortion Framework for Characterizing Semantic Information"},"references":{"count":0,"internal_anchors":0,"resolved_work":0,"sample":[],"snapshot_sha256":"258153158e38e3291e3d48162225fcdb2d5a3ed65a07baac614ab91432fd4f57"},"source":{"id":"2105.04278","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":"sha256:55d1cda69df5276c49274237cb706e9cfdd13b70a46161fc478234d32a09c095","target":"record","created_at":"2026-07-05T02:38:55Z","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":"4801cad7571d827afa43a2a27ee2926490d2d56ca4a89013f22c74bcf4d15fd3","cross_cats_sorted":["math.IT","stat.AP"],"license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"cs.IT","submitted_at":"2021-05-10T11:36:16Z","title_canon_sha256":"1009f96796398aae1ad3fe8fd75ce9ccb6b1144577cfffe19512436c446f9edb"},"schema_version":"1.0","source":{"id":"2105.04278","kind":"arxiv","version":1}},"canonical_sha256":"f723ed1737cb85e5fb9178d251bada50539da89f6ffc4aaeccfedd0a77e2f499","receipt":{"algorithm":"ed25519","builder_version":"pith-number-builder-2026-05-17-v1","canonical_sha256":"f723ed1737cb85e5fb9178d251bada50539da89f6ffc4aaeccfedd0a77e2f499","first_computed_at":"2026-07-05T02:38:55.562349Z","key_id":"pith-v1-2026-05","kind":"pith_receipt","last_reissued_at":"2026-07-05T02:38:55.562349Z","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54","receipt_version":"0.3","signature_b64":"nEFUy2by4mK2bQG95QAFQkqXp6A3xGgEiOfcYvJ9WwwGs+7cSPODrQDDZiZLz335WgQZ+zuTsfMpUpfDXrJaBg==","signature_status":"signed_v1","signed_at":"2026-07-05T02:38:55.562687Z","signed_message":"canonical_sha256_bytes"},"source_id":"2105.04278","source_kind":"arxiv","source_version":1}}},"equivocations":[],"invalid_events":[],"applied_event_ids":["sha256:55d1cda69df5276c49274237cb706e9cfdd13b70a46161fc478234d32a09c095","sha256:9b3f71b8160b04104d56eed54c9b1110d801bec689bea2b1cfd6174c72988c3d"],"state_sha256":"4bd9584c0b27e493960a312a232d6f6f42bffd73767b5660e2aa01bb15779820"},"bundle_signature":{"signature_status":"signed_v1","algorithm":"ed25519","key_id":"pith-v1-2026-05","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54","signature_b64":"xINM3JOThqnlT9CXa7AscHvGxCfOreU+A9+6SV2gPGF0SYchIYgEW1lqKaOd6pej53YLqEx2IZEL54TcY96YCg==","signed_message":"bundle_sha256_bytes","signed_at":"2026-08-22T21:41:26.639091Z","bundle_sha256":"ab4c6b133d36e066da4382e1bf36597f0ef27210a1f3435658cb4d81b53e281f"}}