{"bundle_type":"pith_open_graph_bundle","bundle_version":"1.0","pith_number":"pith:2021:S7IZHHPPLACHAGBXUIJTQOB4VS","short_pith_number":"pith:S7IZHHPP","canonical_record":{"source":{"id":"2102.03139","kind":"arxiv","version":1},"metadata":{"license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"cs.DC","submitted_at":"2021-02-05T12:31:26Z","cross_cats_sorted":[],"title_canon_sha256":"c4f2d78866b27c1e14f673607d683daea64df1058b266e6c84fe2451a4da623a","abstract_canon_sha256":"9914fc14ebcac498511781c07fdc8b0ce2cedb7f3de43fcca5950fec3c35a930"},"schema_version":"1.0"},"canonical_sha256":"97d1939def5804701837a21338383caca86afea8db713716a5fc564fb2985b55","source":{"kind":"arxiv","id":"2102.03139","version":1},"source_aliases":[{"alias_kind":"arxiv","alias_value":"2102.03139","created_at":"2026-07-05T04:37:15Z"},{"alias_kind":"arxiv_version","alias_value":"2102.03139v1","created_at":"2026-07-05T04:37:15Z"},{"alias_kind":"doi","alias_value":"10.48550/arxiv.2102.03139","created_at":"2026-07-05T04:37:15Z"},{"alias_kind":"pith_short_12","alias_value":"S7IZHHPPLACH","created_at":"2026-07-05T04:37:15Z"},{"alias_kind":"pith_short_16","alias_value":"S7IZHHPPLACHAGBX","created_at":"2026-07-05T04:37:15Z"},{"alias_kind":"pith_short_8","alias_value":"S7IZHHPP","created_at":"2026-07-05T04:37:15Z"}],"events":[{"event_type":"record_created","subject_pith_number":"pith:2021:S7IZHHPPLACHAGBXUIJTQOB4VS","target":"record","payload":{"canonical_record":{"source":{"id":"2102.03139","kind":"arxiv","version":1},"metadata":{"license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"cs.DC","submitted_at":"2021-02-05T12:31:26Z","cross_cats_sorted":[],"title_canon_sha256":"c4f2d78866b27c1e14f673607d683daea64df1058b266e6c84fe2451a4da623a","abstract_canon_sha256":"9914fc14ebcac498511781c07fdc8b0ce2cedb7f3de43fcca5950fec3c35a930"},"schema_version":"1.0"},"canonical_sha256":"97d1939def5804701837a21338383caca86afea8db713716a5fc564fb2985b55","receipt":{"kind":"pith_receipt","key_id":"pith-v1-2026-05","algorithm":"ed25519","signed_at":"2026-07-05T04:37:15.931306Z","signature_b64":"wadzArvVaZFtSR3lZY8TZJSeH2EWtQeZIFwJx5oFIhyXBJFB+Krh0QkhedtVZM7gl93p0OnITHry8G3bBDTUAw==","signed_message":"canonical_sha256_bytes","builder_version":"pith-number-builder-2026-05-17-v1","receipt_version":"0.3","canonical_sha256":"97d1939def5804701837a21338383caca86afea8db713716a5fc564fb2985b55","last_reissued_at":"2026-07-05T04:37:15.930827Z","signature_status":"signed_v1","first_computed_at":"2026-07-05T04:37:15.930827Z","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54"},"source_kind":"arxiv","source_id":"2102.03139","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":"2026-07-05T04:37:15Z","supersedes":[],"prev_event":null,"signature":{"signature_status":"signed_v1","algorithm":"ed25519","key_id":"pith-v1-2026-05","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54","signature_b64":"96f9OAxlZVcWLZnjVHKAV16IGlMmDlAw3TnkpmAP/ThLB+B/wBFiZ824BQFd1J64K2Tq9JhLJB0WtTIuH6iHDg==","signed_message":"open_graph_event_sha256_bytes","signed_at":"2026-07-07T07:07:03.919520Z"},"content_sha256":"6c04bff1045edeadace25864a7134ca7685b137b468f87aa33a26682ce8ee6be","schema_version":"1.0","event_id":"sha256:6c04bff1045edeadace25864a7134ca7685b137b468f87aa33a26682ce8ee6be"},{"event_type":"graph_snapshot","subject_pith_number":"pith:2021:S7IZHHPPLACHAGBXUIJTQOB4VS","target":"graph","payload":{"graph_snapshot":{"paper":{"title":"Committee selection in DAG distributed ledgers and applications","license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","headline":"","cross_cats":[],"primary_cat":"cs.DC","authors_text":"Angelo Capossele, Bartosz Ku\\'smierz, Sebastian M\\\"uller","submitted_at":"2021-02-05T12:31:26Z","abstract_excerpt":"In this paper, we propose several solutions to the committee selection problem among participants of a DAG distributed ledger. Our methods are based on a ledger intrinsic reputation model that serves as a selection criterion. The main difficulty arises from the fact that the DAG ledger is a priori not totally ordered and that the participants need to reach a consensus on participants' reputation. Furthermore, we outline applications of the proposed protocols, including: (i) self-contained decentralized random number beacon; (ii) selection of oracles in smart contracts; (iii) applications in co"},"claims":{"count":0,"items":[],"snapshot_sha256":"258153158e38e3291e3d48162225fcdb2d5a3ed65a07baac614ab91432fd4f57"},"source":{"id":"2102.03139","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/2102.03139/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":"2026-07-05T04:37:15Z","supersedes":[],"prev_event":null,"signature":{"signature_status":"signed_v1","algorithm":"ed25519","key_id":"pith-v1-2026-05","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54","signature_b64":"0xpxfWT8xpMXUEE45LVb/OW1r+upQnHTYZLEPb7tC0pI2snfgJ5otmP8FekUThx8Kr/LkoPmqk1c1VN0xTyxCQ==","signed_message":"open_graph_event_sha256_bytes","signed_at":"2026-07-07T07:07:03.919894Z"},"content_sha256":"f891b7a8477277cce79305b9a84d5abd54b998e2ba8882f1d0436bf4bb39cda9","schema_version":"1.0","event_id":"sha256:f891b7a8477277cce79305b9a84d5abd54b998e2ba8882f1d0436bf4bb39cda9"}],"timestamp_proofs":[],"mirror_hints":[{"mirror_type":"https","name":"Pith Resolver","base_url":"https://pith.science","bundle_url":"https://pith.science/pith/S7IZHHPPLACHAGBXUIJTQOB4VS/bundle.json","state_url":"https://pith.science/pith/S7IZHHPPLACHAGBXUIJTQOB4VS/state.json","well_known_bundle_url":"https://pith.science/.well-known/pith/S7IZHHPPLACHAGBXUIJTQOB4VS/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":"2026-07-07T07:07:03Z","links":{"resolver":"https://pith.science/pith/S7IZHHPPLACHAGBXUIJTQOB4VS","bundle":"https://pith.science/pith/S7IZHHPPLACHAGBXUIJTQOB4VS/bundle.json","state":"https://pith.science/pith/S7IZHHPPLACHAGBXUIJTQOB4VS/state.json","well_known_bundle":"https://pith.science/.well-known/pith/S7IZHHPPLACHAGBXUIJTQOB4VS/bundle.json"},"state":{"state_type":"pith_open_graph_state","state_version":"1.0","pith_number":"pith:2021:S7IZHHPPLACHAGBXUIJTQOB4VS","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":"9914fc14ebcac498511781c07fdc8b0ce2cedb7f3de43fcca5950fec3c35a930","cross_cats_sorted":[],"license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"cs.DC","submitted_at":"2021-02-05T12:31:26Z","title_canon_sha256":"c4f2d78866b27c1e14f673607d683daea64df1058b266e6c84fe2451a4da623a"},"schema_version":"1.0","source":{"id":"2102.03139","kind":"arxiv","version":1}},"source_aliases":[{"alias_kind":"arxiv","alias_value":"2102.03139","created_at":"2026-07-05T04:37:15Z"},{"alias_kind":"arxiv_version","alias_value":"2102.03139v1","created_at":"2026-07-05T04:37:15Z"},{"alias_kind":"doi","alias_value":"10.48550/arxiv.2102.03139","created_at":"2026-07-05T04:37:15Z"},{"alias_kind":"pith_short_12","alias_value":"S7IZHHPPLACH","created_at":"2026-07-05T04:37:15Z"},{"alias_kind":"pith_short_16","alias_value":"S7IZHHPPLACHAGBX","created_at":"2026-07-05T04:37:15Z"},{"alias_kind":"pith_short_8","alias_value":"S7IZHHPP","created_at":"2026-07-05T04:37:15Z"}],"graph_snapshots":[{"event_id":"sha256:f891b7a8477277cce79305b9a84d5abd54b998e2ba8882f1d0436bf4bb39cda9","target":"graph","created_at":"2026-07-05T04:37:15Z","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/2102.03139/integrity.json","findings":[],"snapshot_sha256":"c28c3603d3b5d939e8dc4c7e95fa8dfce3d595e45f758748cecf8e644a296938","summary":{"advisory":0,"by_detector":{},"critical":0,"informational":0}},"paper":{"abstract_excerpt":"In this paper, we propose several solutions to the committee selection problem among participants of a DAG distributed ledger. Our methods are based on a ledger intrinsic reputation model that serves as a selection criterion. The main difficulty arises from the fact that the DAG ledger is a priori not totally ordered and that the participants need to reach a consensus on participants' reputation. Furthermore, we outline applications of the proposed protocols, including: (i) self-contained decentralized random number beacon; (ii) selection of oracles in smart contracts; (iii) applications in co","authors_text":"Angelo Capossele, Bartosz Ku\\'smierz, Sebastian M\\\"uller","cross_cats":[],"headline":"","license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"cs.DC","submitted_at":"2021-02-05T12:31:26Z","title":"Committee selection in DAG distributed ledgers and applications"},"references":{"count":0,"internal_anchors":0,"resolved_work":0,"sample":[],"snapshot_sha256":"258153158e38e3291e3d48162225fcdb2d5a3ed65a07baac614ab91432fd4f57"},"source":{"id":"2102.03139","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":"sha256:6c04bff1045edeadace25864a7134ca7685b137b468f87aa33a26682ce8ee6be","target":"record","created_at":"2026-07-05T04:37:15Z","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":"9914fc14ebcac498511781c07fdc8b0ce2cedb7f3de43fcca5950fec3c35a930","cross_cats_sorted":[],"license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"cs.DC","submitted_at":"2021-02-05T12:31:26Z","title_canon_sha256":"c4f2d78866b27c1e14f673607d683daea64df1058b266e6c84fe2451a4da623a"},"schema_version":"1.0","source":{"id":"2102.03139","kind":"arxiv","version":1}},"canonical_sha256":"97d1939def5804701837a21338383caca86afea8db713716a5fc564fb2985b55","receipt":{"algorithm":"ed25519","builder_version":"pith-number-builder-2026-05-17-v1","canonical_sha256":"97d1939def5804701837a21338383caca86afea8db713716a5fc564fb2985b55","first_computed_at":"2026-07-05T04:37:15.930827Z","key_id":"pith-v1-2026-05","kind":"pith_receipt","last_reissued_at":"2026-07-05T04:37:15.930827Z","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54","receipt_version":"0.3","signature_b64":"wadzArvVaZFtSR3lZY8TZJSeH2EWtQeZIFwJx5oFIhyXBJFB+Krh0QkhedtVZM7gl93p0OnITHry8G3bBDTUAw==","signature_status":"signed_v1","signed_at":"2026-07-05T04:37:15.931306Z","signed_message":"canonical_sha256_bytes"},"source_id":"2102.03139","source_kind":"arxiv","source_version":1}}},"equivocations":[],"invalid_events":[],"applied_event_ids":["sha256:6c04bff1045edeadace25864a7134ca7685b137b468f87aa33a26682ce8ee6be","sha256:f891b7a8477277cce79305b9a84d5abd54b998e2ba8882f1d0436bf4bb39cda9"],"state_sha256":"43a8edd89a7e1b5c5b0462f7e803b5d94a6f5c7ff3e6c04a0e666914fa6a6b76"},"bundle_signature":{"signature_status":"signed_v1","algorithm":"ed25519","key_id":"pith-v1-2026-05","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54","signature_b64":"J+e/DCAGpuKe3PbhqEoPS4qNt7fqm4m3+aN8Xx1OvKJ972pOnv1jvGKDM+qCiNVbM+smMHK+ubS65p1zBtE1Ag==","signed_message":"bundle_sha256_bytes","signed_at":"2026-07-07T07:07:03.922231Z","bundle_sha256":"3512dc10aa6c18638b19f2a685287afacda3231ab8479d8e134957cbd5f13a06"}}