{"bundle_type":"pith_open_graph_bundle","bundle_version":"1.0","pith_number":"pith:2015:ETPBHD7KMII6AKO225MNIIBPIN","short_pith_number":"pith:ETPBHD7K","canonical_record":{"source":{"id":"1507.00240","kind":"arxiv","version":4},"metadata":{"license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"quant-ph","submitted_at":"2015-07-01T14:00:27Z","cross_cats_sorted":[],"title_canon_sha256":"10a3160a2ac03e03e13d84257045b0c5658f305d131c2630c2816b2ef0aad6eb","abstract_canon_sha256":"f918f6e9d6c79ecbd327ff43151b6968fb3a611fea4a2d858d9a4b992a4268b7"},"schema_version":"1.0"},"canonical_sha256":"24de138fea6211e029dad758d4202f43559e4a827843ffcf06efe05e07f1d3b1","source":{"kind":"arxiv","id":"1507.00240","version":4},"source_aliases":[{"alias_kind":"arxiv","alias_value":"1507.00240","created_at":"2026-05-18T00:41:18Z"},{"alias_kind":"arxiv_version","alias_value":"1507.00240v4","created_at":"2026-05-18T00:41:18Z"},{"alias_kind":"doi","alias_value":"10.48550/arxiv.1507.00240","created_at":"2026-05-18T00:41:18Z"},{"alias_kind":"pith_short_12","alias_value":"ETPBHD7KMII6","created_at":"2026-05-18T12:29:19Z"},{"alias_kind":"pith_short_16","alias_value":"ETPBHD7KMII6AKO2","created_at":"2026-05-18T12:29:19Z"},{"alias_kind":"pith_short_8","alias_value":"ETPBHD7K","created_at":"2026-05-18T12:29:19Z"}],"events":[{"event_type":"record_created","subject_pith_number":"pith:2015:ETPBHD7KMII6AKO225MNIIBPIN","target":"record","payload":{"canonical_record":{"source":{"id":"1507.00240","kind":"arxiv","version":4},"metadata":{"license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"quant-ph","submitted_at":"2015-07-01T14:00:27Z","cross_cats_sorted":[],"title_canon_sha256":"10a3160a2ac03e03e13d84257045b0c5658f305d131c2630c2816b2ef0aad6eb","abstract_canon_sha256":"f918f6e9d6c79ecbd327ff43151b6968fb3a611fea4a2d858d9a4b992a4268b7"},"schema_version":"1.0"},"canonical_sha256":"24de138fea6211e029dad758d4202f43559e4a827843ffcf06efe05e07f1d3b1","receipt":{"kind":"pith_receipt","key_id":"pith-v1-2026-05","algorithm":"ed25519","signed_at":"2026-05-18T00:41:18.575785Z","signature_b64":"VDUnU1q/qH17EpAiIh4oWy1Xt2gZKNcWZl3YgJLGGIopPJMmMFdI8ssJcsbMFZx5GbEO7ciI6COkiJOrpURzAg==","signed_message":"canonical_sha256_bytes","builder_version":"pith-number-builder-2026-05-17-v1","receipt_version":"0.3","canonical_sha256":"24de138fea6211e029dad758d4202f43559e4a827843ffcf06efe05e07f1d3b1","last_reissued_at":"2026-05-18T00:41:18.575185Z","signature_status":"signed_v1","first_computed_at":"2026-05-18T00:41:18.575185Z","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54"},"source_kind":"arxiv","source_id":"1507.00240","source_version":4,"attestation_state":"computed"},"signer":{"signer_id":"pith.science","signer_type":"pith_registry","key_id":"pith-v1-2026-05","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54"},"created_at":"2026-05-18T00:41:18Z","supersedes":[],"prev_event":null,"signature":{"signature_status":"signed_v1","algorithm":"ed25519","key_id":"pith-v1-2026-05","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54","signature_b64":"JKZYlnS8EMHmmO5U5AEeIEnpWSQE0OeFHaGt03R7j3f4Hagsh75EgJ2BxmLw7uDtpx3oYDJoATWF+bwC1hiKCQ==","signed_message":"open_graph_event_sha256_bytes","signed_at":"2026-06-03T16:07:35.413937Z"},"content_sha256":"b2d8f250badd9faed83b6f7299730785224fafb1684780b0e830c6f0c1483168","schema_version":"1.0","event_id":"sha256:b2d8f250badd9faed83b6f7299730785224fafb1684780b0e830c6f0c1483168"},{"event_type":"graph_snapshot","subject_pith_number":"pith:2015:ETPBHD7KMII6AKO225MNIIBPIN","target":"graph","payload":{"graph_snapshot":{"paper":{"title":"On the Composition of Two-Prover Commitments, and Applications to Multi-Round Relativistic Commitments","license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","headline":"","cross_cats":[],"primary_cat":"quant-ph","authors_text":"Max Fillinger, Serge Fehr","submitted_at":"2015-07-01T14:00:27Z","abstract_excerpt":"We consider the related notions of two-prover and of relativistic commitment schemes. In recent work, Lunghi et al. proposed a new relativistic commitment scheme with a multi-round sustain phase that enables to keep the binding property alive as long as the sustain phase is running. They prove security of their scheme against classical attacks; however, the proven bound on the error parameter is very weak: it blows up doubly exponentially in the number of rounds. In this work, we give a new analysis of the multi-round scheme of Lunghi et al., and we show a linear growth of the error parameter "},"claims":{"count":0,"items":[],"snapshot_sha256":"258153158e38e3291e3d48162225fcdb2d5a3ed65a07baac614ab91432fd4f57"},"source":{"id":"1507.00240","kind":"arxiv","version":4},"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":"2026-05-18T00:41:18Z","supersedes":[],"prev_event":null,"signature":{"signature_status":"signed_v1","algorithm":"ed25519","key_id":"pith-v1-2026-05","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54","signature_b64":"PKqWI9tZkb7ij8tJfmF1uBYLIVL58rOI3n0q99lnrx/w/oe0wAPtz/tp2CYu3DzcPLJx1NV9OKFopsAcpPqZBA==","signed_message":"open_graph_event_sha256_bytes","signed_at":"2026-06-03T16:07:35.414290Z"},"content_sha256":"fc5fdf68729c6bb900b27f4e364d9239deef38a919bc32984482fce55b02ae0c","schema_version":"1.0","event_id":"sha256:fc5fdf68729c6bb900b27f4e364d9239deef38a919bc32984482fce55b02ae0c"}],"timestamp_proofs":[],"mirror_hints":[{"mirror_type":"https","name":"Pith Resolver","base_url":"https://pith.science","bundle_url":"https://pith.science/pith/ETPBHD7KMII6AKO225MNIIBPIN/bundle.json","state_url":"https://pith.science/pith/ETPBHD7KMII6AKO225MNIIBPIN/state.json","well_known_bundle_url":"https://pith.science/.well-known/pith/ETPBHD7KMII6AKO225MNIIBPIN/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":"2026-06-03T16:07:35Z","links":{"resolver":"https://pith.science/pith/ETPBHD7KMII6AKO225MNIIBPIN","bundle":"https://pith.science/pith/ETPBHD7KMII6AKO225MNIIBPIN/bundle.json","state":"https://pith.science/pith/ETPBHD7KMII6AKO225MNIIBPIN/state.json","well_known_bundle":"https://pith.science/.well-known/pith/ETPBHD7KMII6AKO225MNIIBPIN/bundle.json"},"state":{"state_type":"pith_open_graph_state","state_version":"1.0","pith_number":"pith:2015:ETPBHD7KMII6AKO225MNIIBPIN","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":"f918f6e9d6c79ecbd327ff43151b6968fb3a611fea4a2d858d9a4b992a4268b7","cross_cats_sorted":[],"license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"quant-ph","submitted_at":"2015-07-01T14:00:27Z","title_canon_sha256":"10a3160a2ac03e03e13d84257045b0c5658f305d131c2630c2816b2ef0aad6eb"},"schema_version":"1.0","source":{"id":"1507.00240","kind":"arxiv","version":4}},"source_aliases":[{"alias_kind":"arxiv","alias_value":"1507.00240","created_at":"2026-05-18T00:41:18Z"},{"alias_kind":"arxiv_version","alias_value":"1507.00240v4","created_at":"2026-05-18T00:41:18Z"},{"alias_kind":"doi","alias_value":"10.48550/arxiv.1507.00240","created_at":"2026-05-18T00:41:18Z"},{"alias_kind":"pith_short_12","alias_value":"ETPBHD7KMII6","created_at":"2026-05-18T12:29:19Z"},{"alias_kind":"pith_short_16","alias_value":"ETPBHD7KMII6AKO2","created_at":"2026-05-18T12:29:19Z"},{"alias_kind":"pith_short_8","alias_value":"ETPBHD7K","created_at":"2026-05-18T12:29:19Z"}],"graph_snapshots":[{"event_id":"sha256:fc5fdf68729c6bb900b27f4e364d9239deef38a919bc32984482fce55b02ae0c","target":"graph","created_at":"2026-05-18T00:41:18Z","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 related notions of two-prover and of relativistic commitment schemes. In recent work, Lunghi et al. proposed a new relativistic commitment scheme with a multi-round sustain phase that enables to keep the binding property alive as long as the sustain phase is running. They prove security of their scheme against classical attacks; however, the proven bound on the error parameter is very weak: it blows up doubly exponentially in the number of rounds. In this work, we give a new analysis of the multi-round scheme of Lunghi et al., and we show a linear growth of the error parameter ","authors_text":"Max Fillinger, Serge Fehr","cross_cats":[],"headline":"","license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"quant-ph","submitted_at":"2015-07-01T14:00:27Z","title":"On the Composition of Two-Prover Commitments, and Applications to Multi-Round Relativistic Commitments"},"references":{"count":0,"internal_anchors":0,"resolved_work":0,"sample":[],"snapshot_sha256":"258153158e38e3291e3d48162225fcdb2d5a3ed65a07baac614ab91432fd4f57"},"source":{"id":"1507.00240","kind":"arxiv","version":4},"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:b2d8f250badd9faed83b6f7299730785224fafb1684780b0e830c6f0c1483168","target":"record","created_at":"2026-05-18T00:41:18Z","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":"f918f6e9d6c79ecbd327ff43151b6968fb3a611fea4a2d858d9a4b992a4268b7","cross_cats_sorted":[],"license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"quant-ph","submitted_at":"2015-07-01T14:00:27Z","title_canon_sha256":"10a3160a2ac03e03e13d84257045b0c5658f305d131c2630c2816b2ef0aad6eb"},"schema_version":"1.0","source":{"id":"1507.00240","kind":"arxiv","version":4}},"canonical_sha256":"24de138fea6211e029dad758d4202f43559e4a827843ffcf06efe05e07f1d3b1","receipt":{"algorithm":"ed25519","builder_version":"pith-number-builder-2026-05-17-v1","canonical_sha256":"24de138fea6211e029dad758d4202f43559e4a827843ffcf06efe05e07f1d3b1","first_computed_at":"2026-05-18T00:41:18.575185Z","key_id":"pith-v1-2026-05","kind":"pith_receipt","last_reissued_at":"2026-05-18T00:41:18.575185Z","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54","receipt_version":"0.3","signature_b64":"VDUnU1q/qH17EpAiIh4oWy1Xt2gZKNcWZl3YgJLGGIopPJMmMFdI8ssJcsbMFZx5GbEO7ciI6COkiJOrpURzAg==","signature_status":"signed_v1","signed_at":"2026-05-18T00:41:18.575785Z","signed_message":"canonical_sha256_bytes"},"source_id":"1507.00240","source_kind":"arxiv","source_version":4}}},"equivocations":[],"invalid_events":[],"applied_event_ids":["sha256:b2d8f250badd9faed83b6f7299730785224fafb1684780b0e830c6f0c1483168","sha256:fc5fdf68729c6bb900b27f4e364d9239deef38a919bc32984482fce55b02ae0c"],"state_sha256":"953a06bef8d928b59ef7d502b1934123b23c00195e72d334a760f96a9c8be57f"},"bundle_signature":{"signature_status":"signed_v1","algorithm":"ed25519","key_id":"pith-v1-2026-05","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54","signature_b64":"hGhiiG0biPcVtFHdpVrMQkt0B67hpXSL3gUUPsEi1p4SZxDTks4rmi0wTndmgNr6HtXrj9ZDh/oWAZ/taxDwBw==","signed_message":"bundle_sha256_bytes","signed_at":"2026-06-03T16:07:35.416188Z","bundle_sha256":"aa4c72d5b8dd0e0c4503c0dc550c37a1227988eda2b63f09dc42d42f3b14304e"}}