{"bundle_type":"pith_open_graph_bundle","bundle_version":"1.0","pith_number":"pith:2019:IS7EI7IDIWPEPKR2KXZZXGBFCD","short_pith_number":"pith:IS7EI7ID","canonical_record":{"source":{"id":"1903.05066","kind":"arxiv","version":1},"metadata":{"license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"cs.IT","submitted_at":"2019-03-12T17:19:48Z","cross_cats_sorted":["cs.NI","math.IT"],"title_canon_sha256":"abacae336272f64ce3099a03c2acce6d9ab38fd35791225d06a651b1c083a1d2","abstract_canon_sha256":"6c315d5f7b53a78b7c1b735cccb10834b2f208d7deac016995dde747f609e96b"},"schema_version":"1.0"},"canonical_sha256":"44be447d03459e47aa3a55f39b982510ec547bf454d9c236cd7e87745d1077aa","source":{"kind":"arxiv","id":"1903.05066","version":1},"source_aliases":[{"alias_kind":"arxiv","alias_value":"1903.05066","created_at":"2026-05-17T23:51:26Z"},{"alias_kind":"arxiv_version","alias_value":"1903.05066v1","created_at":"2026-05-17T23:51:26Z"},{"alias_kind":"doi","alias_value":"10.48550/arxiv.1903.05066","created_at":"2026-05-17T23:51:26Z"},{"alias_kind":"pith_short_12","alias_value":"IS7EI7IDIWPE","created_at":"2026-05-18T12:33:18Z"},{"alias_kind":"pith_short_16","alias_value":"IS7EI7IDIWPEPKR2","created_at":"2026-05-18T12:33:18Z"},{"alias_kind":"pith_short_8","alias_value":"IS7EI7ID","created_at":"2026-05-18T12:33:18Z"}],"events":[{"event_type":"record_created","subject_pith_number":"pith:2019:IS7EI7IDIWPEPKR2KXZZXGBFCD","target":"record","payload":{"canonical_record":{"source":{"id":"1903.05066","kind":"arxiv","version":1},"metadata":{"license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"cs.IT","submitted_at":"2019-03-12T17:19:48Z","cross_cats_sorted":["cs.NI","math.IT"],"title_canon_sha256":"abacae336272f64ce3099a03c2acce6d9ab38fd35791225d06a651b1c083a1d2","abstract_canon_sha256":"6c315d5f7b53a78b7c1b735cccb10834b2f208d7deac016995dde747f609e96b"},"schema_version":"1.0"},"canonical_sha256":"44be447d03459e47aa3a55f39b982510ec547bf454d9c236cd7e87745d1077aa","receipt":{"kind":"pith_receipt","key_id":"pith-v1-2026-05","algorithm":"ed25519","signed_at":"2026-05-17T23:51:26.417978Z","signature_b64":"ahBP1cnrdJlwolqKC1D779JroqyO6+yg69CW7YBmUyomUSiyLeA8G4bHvstOq8pxrV1sBMk9XDVnldqFZ1MbAg==","signed_message":"canonical_sha256_bytes","builder_version":"pith-number-builder-2026-05-17-v1","receipt_version":"0.3","canonical_sha256":"44be447d03459e47aa3a55f39b982510ec547bf454d9c236cd7e87745d1077aa","last_reissued_at":"2026-05-17T23:51:26.417350Z","signature_status":"signed_v1","first_computed_at":"2026-05-17T23:51:26.417350Z","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54"},"source_kind":"arxiv","source_id":"1903.05066","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":"2026-05-17T23:51:26Z","supersedes":[],"prev_event":null,"signature":{"signature_status":"signed_v1","algorithm":"ed25519","key_id":"pith-v1-2026-05","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54","signature_b64":"WiuzWVhPzSL7bOXweCQWtbtOFdcAII0o5UMyr2+gP3yFWYhYDMdESWf3JeeZwkt83yLUnJen1Ay2pRbKSaTIDA==","signed_message":"open_graph_event_sha256_bytes","signed_at":"2026-06-03T01:43:25.238386Z"},"content_sha256":"d2a3648b35c49c6fc1ab99fb6441ede047bdf07d3874633b5ee090d6335cfbd7","schema_version":"1.0","event_id":"sha256:d2a3648b35c49c6fc1ab99fb6441ede047bdf07d3874633b5ee090d6335cfbd7"},{"event_type":"graph_snapshot","subject_pith_number":"pith:2019:IS7EI7IDIWPEPKR2KXZZXGBFCD","target":"graph","payload":{"graph_snapshot":{"paper":{"title":"Age of Information in a Multiple Access Channel with Heterogeneous Traffic and an Energy Harvesting Node","license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","headline":"","cross_cats":["cs.NI","math.IT"],"primary_cat":"cs.IT","authors_text":"Emil Bj\\\"ornson, Erik G. Larsson, Nikolaos Pappas, Zheng Chen","submitted_at":"2019-03-12T17:19:48Z","abstract_excerpt":"Age of Information (AoI) is a newly appeared concept and metric to characterize the freshness of data. In this work, we study the delay and AoI in a multiple access channel (MAC) with two source nodes transmitting different types of data to a common destination. The first node is grid-connected and its data packets arrive in a bursty manner, and at each time slot it transmits one packet with some probability. Another energy harvesting (EH) sensor node generates a new status update with a certain probability whenever it is charged. We derive the delay of the grid-connected node and the AoI of t"},"claims":{"count":0,"items":[],"snapshot_sha256":"258153158e38e3291e3d48162225fcdb2d5a3ed65a07baac614ab91432fd4f57"},"source":{"id":"1903.05066","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":"2026-05-17T23:51:26Z","supersedes":[],"prev_event":null,"signature":{"signature_status":"signed_v1","algorithm":"ed25519","key_id":"pith-v1-2026-05","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54","signature_b64":"zJpPxjSiL0KjFNeB6+Z9NFBGCsawmevPqJMCVqEpSUp4XybuK4gmZjjTt2T+MP/6pJMVbBU3JvVcrvvvxrOjCw==","signed_message":"open_graph_event_sha256_bytes","signed_at":"2026-06-03T01:43:25.238732Z"},"content_sha256":"9af42d34e4d81e32c94d23308de8227ce6af5d802e943a1c280e3cc079700dd5","schema_version":"1.0","event_id":"sha256:9af42d34e4d81e32c94d23308de8227ce6af5d802e943a1c280e3cc079700dd5"}],"timestamp_proofs":[],"mirror_hints":[{"mirror_type":"https","name":"Pith Resolver","base_url":"https://pith.science","bundle_url":"https://pith.science/pith/IS7EI7IDIWPEPKR2KXZZXGBFCD/bundle.json","state_url":"https://pith.science/pith/IS7EI7IDIWPEPKR2KXZZXGBFCD/state.json","well_known_bundle_url":"https://pith.science/.well-known/pith/IS7EI7IDIWPEPKR2KXZZXGBFCD/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":"2026-06-03T01:43:25Z","links":{"resolver":"https://pith.science/pith/IS7EI7IDIWPEPKR2KXZZXGBFCD","bundle":"https://pith.science/pith/IS7EI7IDIWPEPKR2KXZZXGBFCD/bundle.json","state":"https://pith.science/pith/IS7EI7IDIWPEPKR2KXZZXGBFCD/state.json","well_known_bundle":"https://pith.science/.well-known/pith/IS7EI7IDIWPEPKR2KXZZXGBFCD/bundle.json"},"state":{"state_type":"pith_open_graph_state","state_version":"1.0","pith_number":"pith:2019:IS7EI7IDIWPEPKR2KXZZXGBFCD","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":"6c315d5f7b53a78b7c1b735cccb10834b2f208d7deac016995dde747f609e96b","cross_cats_sorted":["cs.NI","math.IT"],"license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"cs.IT","submitted_at":"2019-03-12T17:19:48Z","title_canon_sha256":"abacae336272f64ce3099a03c2acce6d9ab38fd35791225d06a651b1c083a1d2"},"schema_version":"1.0","source":{"id":"1903.05066","kind":"arxiv","version":1}},"source_aliases":[{"alias_kind":"arxiv","alias_value":"1903.05066","created_at":"2026-05-17T23:51:26Z"},{"alias_kind":"arxiv_version","alias_value":"1903.05066v1","created_at":"2026-05-17T23:51:26Z"},{"alias_kind":"doi","alias_value":"10.48550/arxiv.1903.05066","created_at":"2026-05-17T23:51:26Z"},{"alias_kind":"pith_short_12","alias_value":"IS7EI7IDIWPE","created_at":"2026-05-18T12:33:18Z"},{"alias_kind":"pith_short_16","alias_value":"IS7EI7IDIWPEPKR2","created_at":"2026-05-18T12:33:18Z"},{"alias_kind":"pith_short_8","alias_value":"IS7EI7ID","created_at":"2026-05-18T12:33:18Z"}],"graph_snapshots":[{"event_id":"sha256:9af42d34e4d81e32c94d23308de8227ce6af5d802e943a1c280e3cc079700dd5","target":"graph","created_at":"2026-05-17T23:51:26Z","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":"Age of Information (AoI) is a newly appeared concept and metric to characterize the freshness of data. In this work, we study the delay and AoI in a multiple access channel (MAC) with two source nodes transmitting different types of data to a common destination. The first node is grid-connected and its data packets arrive in a bursty manner, and at each time slot it transmits one packet with some probability. Another energy harvesting (EH) sensor node generates a new status update with a certain probability whenever it is charged. We derive the delay of the grid-connected node and the AoI of t","authors_text":"Emil Bj\\\"ornson, Erik G. Larsson, Nikolaos Pappas, Zheng Chen","cross_cats":["cs.NI","math.IT"],"headline":"","license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"cs.IT","submitted_at":"2019-03-12T17:19:48Z","title":"Age of Information in a Multiple Access Channel with Heterogeneous Traffic and an Energy Harvesting Node"},"references":{"count":0,"internal_anchors":0,"resolved_work":0,"sample":[],"snapshot_sha256":"258153158e38e3291e3d48162225fcdb2d5a3ed65a07baac614ab91432fd4f57"},"source":{"id":"1903.05066","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:d2a3648b35c49c6fc1ab99fb6441ede047bdf07d3874633b5ee090d6335cfbd7","target":"record","created_at":"2026-05-17T23:51:26Z","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":"6c315d5f7b53a78b7c1b735cccb10834b2f208d7deac016995dde747f609e96b","cross_cats_sorted":["cs.NI","math.IT"],"license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"cs.IT","submitted_at":"2019-03-12T17:19:48Z","title_canon_sha256":"abacae336272f64ce3099a03c2acce6d9ab38fd35791225d06a651b1c083a1d2"},"schema_version":"1.0","source":{"id":"1903.05066","kind":"arxiv","version":1}},"canonical_sha256":"44be447d03459e47aa3a55f39b982510ec547bf454d9c236cd7e87745d1077aa","receipt":{"algorithm":"ed25519","builder_version":"pith-number-builder-2026-05-17-v1","canonical_sha256":"44be447d03459e47aa3a55f39b982510ec547bf454d9c236cd7e87745d1077aa","first_computed_at":"2026-05-17T23:51:26.417350Z","key_id":"pith-v1-2026-05","kind":"pith_receipt","last_reissued_at":"2026-05-17T23:51:26.417350Z","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54","receipt_version":"0.3","signature_b64":"ahBP1cnrdJlwolqKC1D779JroqyO6+yg69CW7YBmUyomUSiyLeA8G4bHvstOq8pxrV1sBMk9XDVnldqFZ1MbAg==","signature_status":"signed_v1","signed_at":"2026-05-17T23:51:26.417978Z","signed_message":"canonical_sha256_bytes"},"source_id":"1903.05066","source_kind":"arxiv","source_version":1}}},"equivocations":[],"invalid_events":[],"applied_event_ids":["sha256:d2a3648b35c49c6fc1ab99fb6441ede047bdf07d3874633b5ee090d6335cfbd7","sha256:9af42d34e4d81e32c94d23308de8227ce6af5d802e943a1c280e3cc079700dd5"],"state_sha256":"a0224f563015ae31093a2ff9ab83e8223aec590fe12560144e22fa33de59cae1"},"bundle_signature":{"signature_status":"signed_v1","algorithm":"ed25519","key_id":"pith-v1-2026-05","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54","signature_b64":"OmyveEFDEsQjpw1rdLfy0LzmZdfOxDYHgvt2ENW+Z4Td4KSNwApJJ9t0j6nG4aw3TMwD2a1Y0dZZiDE9IJ86DA==","signed_message":"bundle_sha256_bytes","signed_at":"2026-06-03T01:43:25.240712Z","bundle_sha256":"dd1fdf938e20022e180136e82dc73401b96004ed87b54176eed803e47cb2cb68"}}