{"bundle_type":"pith_open_graph_bundle","bundle_version":"1.0","pith_number":"pith:2018:VELQVPKMWSFHHSGM5IB37PMX4J","short_pith_number":"pith:VELQVPKM","canonical_record":{"source":{"id":"1805.03319","kind":"arxiv","version":1},"metadata":{"license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"cs.IT","submitted_at":"2018-05-08T23:48:35Z","cross_cats_sorted":["math.IT"],"title_canon_sha256":"5d6316be75609e05874b01b0fca3f0ccd32832fdc09c234207ee5827eb21f0d8","abstract_canon_sha256":"c88d72d1c0f3d58b14d4a70f021bff51b6f935350ec4f92f3e48499c537dd934"},"schema_version":"1.0"},"canonical_sha256":"a9170abd4cb48a73c8ccea03bfbd97e24397bcb6144a282c03e4c334cd9f04d4","source":{"kind":"arxiv","id":"1805.03319","version":1},"source_aliases":[{"alias_kind":"arxiv","alias_value":"1805.03319","created_at":"2026-05-18T00:16:20Z"},{"alias_kind":"arxiv_version","alias_value":"1805.03319v1","created_at":"2026-05-18T00:16:20Z"},{"alias_kind":"doi","alias_value":"10.48550/arxiv.1805.03319","created_at":"2026-05-18T00:16:20Z"},{"alias_kind":"pith_short_12","alias_value":"VELQVPKMWSFH","created_at":"2026-05-18T12:32:59Z"},{"alias_kind":"pith_short_16","alias_value":"VELQVPKMWSFHHSGM","created_at":"2026-05-18T12:32:59Z"},{"alias_kind":"pith_short_8","alias_value":"VELQVPKM","created_at":"2026-05-18T12:32:59Z"}],"events":[{"event_type":"record_created","subject_pith_number":"pith:2018:VELQVPKMWSFHHSGM5IB37PMX4J","target":"record","payload":{"canonical_record":{"source":{"id":"1805.03319","kind":"arxiv","version":1},"metadata":{"license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"cs.IT","submitted_at":"2018-05-08T23:48:35Z","cross_cats_sorted":["math.IT"],"title_canon_sha256":"5d6316be75609e05874b01b0fca3f0ccd32832fdc09c234207ee5827eb21f0d8","abstract_canon_sha256":"c88d72d1c0f3d58b14d4a70f021bff51b6f935350ec4f92f3e48499c537dd934"},"schema_version":"1.0"},"canonical_sha256":"a9170abd4cb48a73c8ccea03bfbd97e24397bcb6144a282c03e4c334cd9f04d4","receipt":{"kind":"pith_receipt","key_id":"pith-v1-2026-05","algorithm":"ed25519","signed_at":"2026-05-18T00:16:20.516716Z","signature_b64":"wmJ8f/HAt0AZ63l4rpbEPyzSiHRIDOzQv4tCuPx3mVkuAl+iI34Ev7VBy+t6V1O66uEC0wFIQOW2ZlSdafHDCg==","signed_message":"canonical_sha256_bytes","builder_version":"pith-number-builder-2026-05-17-v1","receipt_version":"0.3","canonical_sha256":"a9170abd4cb48a73c8ccea03bfbd97e24397bcb6144a282c03e4c334cd9f04d4","last_reissued_at":"2026-05-18T00:16:20.516173Z","signature_status":"signed_v1","first_computed_at":"2026-05-18T00:16:20.516173Z","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54"},"source_kind":"arxiv","source_id":"1805.03319","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":"2026-05-18T00:16:20Z","supersedes":[],"prev_event":null,"signature":{"signature_status":"signed_v1","algorithm":"ed25519","key_id":"pith-v1-2026-05","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54","signature_b64":"YcEyD0h0IwjhfyksPzxpOP+OdsW5vXWj8YFHSOATw0Azt8WZ+ACKM4D5xGARSIMtshcXo/3fAdz/j7dtcbs0Cg==","signed_message":"open_graph_event_sha256_bytes","signed_at":"2026-05-28T02:18:15.672378Z"},"content_sha256":"ffc52da7002ce510f8e0fdc5ef058a2ff12c4619e94531bf5771cd691299bd3c","schema_version":"1.0","event_id":"sha256:ffc52da7002ce510f8e0fdc5ef058a2ff12c4619e94531bf5771cd691299bd3c"},{"event_type":"graph_snapshot","subject_pith_number":"pith:2018:VELQVPKMWSFHHSGM5IB37PMX4J","target":"graph","payload":{"graph_snapshot":{"paper":{"title":"Quadratically Constrained Channels with Causal Adversaries","license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","headline":"","cross_cats":["math.IT"],"primary_cat":"cs.IT","authors_text":"Anand D. Sarwate, Bikash Kumar Dey, Michael Langberg, Sidharth Jaggi, Tongxin Li","submitted_at":"2018-05-08T23:48:35Z","abstract_excerpt":"We consider the problem of communication over a channel with a causal jamming adversary subject to quadratic constraints. A sender Alice wishes to communicate a message to a receiver Bob by transmitting a real-valued length-$n$ codeword $\\mathbf{x}=x_1,...,x_n$ through a communication channel. Alice and Bob do not share common randomness. Knowing Alice's encoding strategy, an adversarial jammer James chooses a real-valued length-n noise sequence $\\mathbf{s}=s_1,..,s_n$ in a causal manner, i.e., each $s_t (1<=t<=n)$ can only depend on $x_1,...,x_t$. Bob receives $\\mathbf{y}$, the sum of Alice's"},"claims":{"count":0,"items":[],"snapshot_sha256":"258153158e38e3291e3d48162225fcdb2d5a3ed65a07baac614ab91432fd4f57"},"source":{"id":"1805.03319","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":"2026-05-18T00:16:20Z","supersedes":[],"prev_event":null,"signature":{"signature_status":"signed_v1","algorithm":"ed25519","key_id":"pith-v1-2026-05","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54","signature_b64":"M3FkUbY0iTyuzKWMwTIA/YWM+/YAOvk30lgUGrEV7ic2QyrPZTj0N0UsDYbPNlykLeYbO2EO83ObBzcNis5fCw==","signed_message":"open_graph_event_sha256_bytes","signed_at":"2026-05-28T02:18:15.672771Z"},"content_sha256":"cc576f05e575a9e825199a45a87de990c65fabdadb560fb70908d279e71346d9","schema_version":"1.0","event_id":"sha256:cc576f05e575a9e825199a45a87de990c65fabdadb560fb70908d279e71346d9"}],"timestamp_proofs":[],"mirror_hints":[{"mirror_type":"https","name":"Pith Resolver","base_url":"https://pith.science","bundle_url":"https://pith.science/pith/VELQVPKMWSFHHSGM5IB37PMX4J/bundle.json","state_url":"https://pith.science/pith/VELQVPKMWSFHHSGM5IB37PMX4J/state.json","well_known_bundle_url":"https://pith.science/.well-known/pith/VELQVPKMWSFHHSGM5IB37PMX4J/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":"2026-05-28T02:18:15Z","links":{"resolver":"https://pith.science/pith/VELQVPKMWSFHHSGM5IB37PMX4J","bundle":"https://pith.science/pith/VELQVPKMWSFHHSGM5IB37PMX4J/bundle.json","state":"https://pith.science/pith/VELQVPKMWSFHHSGM5IB37PMX4J/state.json","well_known_bundle":"https://pith.science/.well-known/pith/VELQVPKMWSFHHSGM5IB37PMX4J/bundle.json"},"state":{"state_type":"pith_open_graph_state","state_version":"1.0","pith_number":"pith:2018:VELQVPKMWSFHHSGM5IB37PMX4J","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":"c88d72d1c0f3d58b14d4a70f021bff51b6f935350ec4f92f3e48499c537dd934","cross_cats_sorted":["math.IT"],"license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"cs.IT","submitted_at":"2018-05-08T23:48:35Z","title_canon_sha256":"5d6316be75609e05874b01b0fca3f0ccd32832fdc09c234207ee5827eb21f0d8"},"schema_version":"1.0","source":{"id":"1805.03319","kind":"arxiv","version":1}},"source_aliases":[{"alias_kind":"arxiv","alias_value":"1805.03319","created_at":"2026-05-18T00:16:20Z"},{"alias_kind":"arxiv_version","alias_value":"1805.03319v1","created_at":"2026-05-18T00:16:20Z"},{"alias_kind":"doi","alias_value":"10.48550/arxiv.1805.03319","created_at":"2026-05-18T00:16:20Z"},{"alias_kind":"pith_short_12","alias_value":"VELQVPKMWSFH","created_at":"2026-05-18T12:32:59Z"},{"alias_kind":"pith_short_16","alias_value":"VELQVPKMWSFHHSGM","created_at":"2026-05-18T12:32:59Z"},{"alias_kind":"pith_short_8","alias_value":"VELQVPKM","created_at":"2026-05-18T12:32:59Z"}],"graph_snapshots":[{"event_id":"sha256:cc576f05e575a9e825199a45a87de990c65fabdadb560fb70908d279e71346d9","target":"graph","created_at":"2026-05-18T00:16:20Z","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":"We consider the problem of communication over a channel with a causal jamming adversary subject to quadratic constraints. A sender Alice wishes to communicate a message to a receiver Bob by transmitting a real-valued length-$n$ codeword $\\mathbf{x}=x_1,...,x_n$ through a communication channel. Alice and Bob do not share common randomness. Knowing Alice's encoding strategy, an adversarial jammer James chooses a real-valued length-n noise sequence $\\mathbf{s}=s_1,..,s_n$ in a causal manner, i.e., each $s_t (1<=t<=n)$ can only depend on $x_1,...,x_t$. Bob receives $\\mathbf{y}$, the sum of Alice's","authors_text":"Anand D. Sarwate, Bikash Kumar Dey, Michael Langberg, Sidharth Jaggi, Tongxin Li","cross_cats":["math.IT"],"headline":"","license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"cs.IT","submitted_at":"2018-05-08T23:48:35Z","title":"Quadratically Constrained Channels with Causal Adversaries"},"references":{"count":0,"internal_anchors":0,"resolved_work":0,"sample":[],"snapshot_sha256":"258153158e38e3291e3d48162225fcdb2d5a3ed65a07baac614ab91432fd4f57"},"source":{"id":"1805.03319","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:ffc52da7002ce510f8e0fdc5ef058a2ff12c4619e94531bf5771cd691299bd3c","target":"record","created_at":"2026-05-18T00:16:20Z","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":"c88d72d1c0f3d58b14d4a70f021bff51b6f935350ec4f92f3e48499c537dd934","cross_cats_sorted":["math.IT"],"license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"cs.IT","submitted_at":"2018-05-08T23:48:35Z","title_canon_sha256":"5d6316be75609e05874b01b0fca3f0ccd32832fdc09c234207ee5827eb21f0d8"},"schema_version":"1.0","source":{"id":"1805.03319","kind":"arxiv","version":1}},"canonical_sha256":"a9170abd4cb48a73c8ccea03bfbd97e24397bcb6144a282c03e4c334cd9f04d4","receipt":{"algorithm":"ed25519","builder_version":"pith-number-builder-2026-05-17-v1","canonical_sha256":"a9170abd4cb48a73c8ccea03bfbd97e24397bcb6144a282c03e4c334cd9f04d4","first_computed_at":"2026-05-18T00:16:20.516173Z","key_id":"pith-v1-2026-05","kind":"pith_receipt","last_reissued_at":"2026-05-18T00:16:20.516173Z","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54","receipt_version":"0.3","signature_b64":"wmJ8f/HAt0AZ63l4rpbEPyzSiHRIDOzQv4tCuPx3mVkuAl+iI34Ev7VBy+t6V1O66uEC0wFIQOW2ZlSdafHDCg==","signature_status":"signed_v1","signed_at":"2026-05-18T00:16:20.516716Z","signed_message":"canonical_sha256_bytes"},"source_id":"1805.03319","source_kind":"arxiv","source_version":1}}},"equivocations":[],"invalid_events":[],"applied_event_ids":["sha256:ffc52da7002ce510f8e0fdc5ef058a2ff12c4619e94531bf5771cd691299bd3c","sha256:cc576f05e575a9e825199a45a87de990c65fabdadb560fb70908d279e71346d9"],"state_sha256":"cd0234cf9b567221fd269478d54da8905f8100ef24c3c93191acb75030cec6b4"},"bundle_signature":{"signature_status":"signed_v1","algorithm":"ed25519","key_id":"pith-v1-2026-05","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54","signature_b64":"Id+Ei9yH6zpWyqdSOX/y2GgxEXG9SlKy/rzY2m4XR12OSYN4I7yVtpUeTIVJHSx0qoqgtcUJtmGyOf93iv8+AQ==","signed_message":"bundle_sha256_bytes","signed_at":"2026-05-28T02:18:15.674871Z","bundle_sha256":"3a73de185770128d2d15a2073e2634626c0bdd2f9a95f54682e570ebffb5910a"}}