{"record_type":"pith_number_record","schema_url":"https://pith.science/schemas/pith-number/v1.json","pith_number":"pith:2019:AL5EXMEZ4WLMSEKIHCDZAIAKAG","short_pith_number":"pith:AL5EXMEZ","schema_version":"1.0","canonical_sha256":"02fa4bb099e596c91148388790200a01b17f5aceebce79742a7edf4a7528d222","source":{"kind":"arxiv","id":"1907.03730","version":1},"attestation_state":"computed","paper":{"title":"Platypus: a Partially Synchronous Offchain Protocol for Blockchains","license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","headline":"","cross_cats":[],"primary_cat":"cs.DC","authors_text":"Alejandro Ranchal-Pedrosa, Vincent Gramoli","submitted_at":"2019-07-08T17:22:47Z","abstract_excerpt":"Offchain protocols aim at bypassing the scalability and privacy limitations of classic blockchains by allowing a subset of participants to execute multiple transactions outside the blockchain. While existing solutions like payment networks and factories depend on a complex routing protocol, other solutions simply require participants to build a \\emph{childchain}, a secondary blockchain where their transactions are privately executed. Unfortunately, all childchain solutions assume either synchrony or a trusted execution environment.\n  In this paper, we present Platypus a childchain that require"},"verification_status":{"content_addressed":true,"pith_receipt":true,"author_attested":false,"weak_author_claims":0,"strong_author_claims":0,"externally_anchored":false,"storage_verified":false,"citation_signatures":0,"replication_records":0,"graph_snapshot":true,"references_resolved":false,"formal_links_present":false},"canonical_record":{"source":{"id":"1907.03730","kind":"arxiv","version":1},"metadata":{"license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"cs.DC","submitted_at":"2019-07-08T17:22:47Z","cross_cats_sorted":[],"title_canon_sha256":"e257cff663c76cad25fe5ada375d22153367736c45cdd210a10ef77f5e0cd7ed","abstract_canon_sha256":"6192d7f614286c34f842b07451d2821915204c11a21cd26b53ba471938f68e1b"},"schema_version":"1.0"},"receipt":{"kind":"pith_receipt","key_id":"pith-v1-2026-05","algorithm":"ed25519","signed_at":"2026-05-17T23:41:13.930004Z","signature_b64":"ZbyEkCKGE62Jd1Sz9WfWAI8apcmvmqLIjr8afpd9hrLuxt5RfD6nUJaHXlfUlYyjLHSF9bgM1nV5ppVehrewCg==","signed_message":"canonical_sha256_bytes","builder_version":"pith-number-builder-2026-05-17-v1","receipt_version":"0.3","canonical_sha256":"02fa4bb099e596c91148388790200a01b17f5aceebce79742a7edf4a7528d222","last_reissued_at":"2026-05-17T23:41:13.929618Z","signature_status":"signed_v1","first_computed_at":"2026-05-17T23:41:13.929618Z","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54"},"graph_snapshot":{"paper":{"title":"Platypus: a Partially Synchronous Offchain Protocol for Blockchains","license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","headline":"","cross_cats":[],"primary_cat":"cs.DC","authors_text":"Alejandro Ranchal-Pedrosa, Vincent Gramoli","submitted_at":"2019-07-08T17:22:47Z","abstract_excerpt":"Offchain protocols aim at bypassing the scalability and privacy limitations of classic blockchains by allowing a subset of participants to execute multiple transactions outside the blockchain. While existing solutions like payment networks and factories depend on a complex routing protocol, other solutions simply require participants to build a \\emph{childchain}, a secondary blockchain where their transactions are privately executed. Unfortunately, all childchain solutions assume either synchrony or a trusted execution environment.\n  In this paper, we present Platypus a childchain that require"},"claims":{"count":0,"items":[],"snapshot_sha256":"258153158e38e3291e3d48162225fcdb2d5a3ed65a07baac614ab91432fd4f57"},"source":{"id":"1907.03730","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"},"aliases":[{"alias_kind":"arxiv","alias_value":"1907.03730","created_at":"2026-05-17T23:41:13.929684+00:00"},{"alias_kind":"arxiv_version","alias_value":"1907.03730v1","created_at":"2026-05-17T23:41:13.929684+00:00"},{"alias_kind":"doi","alias_value":"10.48550/arxiv.1907.03730","created_at":"2026-05-17T23:41:13.929684+00:00"},{"alias_kind":"pith_short_12","alias_value":"AL5EXMEZ4WLM","created_at":"2026-05-18T12:33:12.712433+00:00"},{"alias_kind":"pith_short_16","alias_value":"AL5EXMEZ4WLMSEKI","created_at":"2026-05-18T12:33:12.712433+00:00"},{"alias_kind":"pith_short_8","alias_value":"AL5EXMEZ","created_at":"2026-05-18T12:33:12.712433+00:00"}],"events":[],"event_summary":{},"paper_claims":[],"inbound_citations":{"count":0,"internal_anchor_count":0,"sample":[]},"formal_canon":{"evidence_count":0,"sample":[],"anchors":[]},"links":{"html":"https://pith.science/pith/AL5EXMEZ4WLMSEKIHCDZAIAKAG","json":"https://pith.science/pith/AL5EXMEZ4WLMSEKIHCDZAIAKAG.json","graph_json":"https://pith.science/api/pith-number/AL5EXMEZ4WLMSEKIHCDZAIAKAG/graph.json","events_json":"https://pith.science/api/pith-number/AL5EXMEZ4WLMSEKIHCDZAIAKAG/events.json","paper":"https://pith.science/paper/AL5EXMEZ"},"agent_actions":{"view_html":"https://pith.science/pith/AL5EXMEZ4WLMSEKIHCDZAIAKAG","download_json":"https://pith.science/pith/AL5EXMEZ4WLMSEKIHCDZAIAKAG.json","view_paper":"https://pith.science/paper/AL5EXMEZ","resolve_alias":"https://pith.science/api/pith-number/resolve?arxiv=1907.03730&json=true","fetch_graph":"https://pith.science/api/pith-number/AL5EXMEZ4WLMSEKIHCDZAIAKAG/graph.json","fetch_events":"https://pith.science/api/pith-number/AL5EXMEZ4WLMSEKIHCDZAIAKAG/events.json","actions":{"anchor_timestamp":"https://pith.science/pith/AL5EXMEZ4WLMSEKIHCDZAIAKAG/action/timestamp_anchor","attest_storage":"https://pith.science/pith/AL5EXMEZ4WLMSEKIHCDZAIAKAG/action/storage_attestation","attest_author":"https://pith.science/pith/AL5EXMEZ4WLMSEKIHCDZAIAKAG/action/author_attestation","sign_citation":"https://pith.science/pith/AL5EXMEZ4WLMSEKIHCDZAIAKAG/action/citation_signature","submit_replication":"https://pith.science/pith/AL5EXMEZ4WLMSEKIHCDZAIAKAG/action/replication_record"}},"created_at":"2026-05-17T23:41:13.929684+00:00","updated_at":"2026-05-17T23:41:13.929684+00:00"}