{"state_type":"pith_open_graph_state","state_version":"1.0","pith_number":"pith:2022:CJDVFFIYFZH7V4TKEAA2YLDXRH","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":"3909bbb09311229616e535642c0b9dc15d2e22efb8b9b8f2497fe8849fd7149b","cross_cats_sorted":["cs.ET"],"license":"http://creativecommons.org/licenses/by-nc-sa/4.0/","primary_cat":"cs.CR","submitted_at":"2022-06-15T00:01:06Z","title_canon_sha256":"02a56199d40b9c90462c4c513221f2ee192774aa80800369d3b779fa88782df8"},"schema_version":"1.0","source":{"id":"2206.07215","kind":"arxiv","version":1}},"source_aliases":[{"alias_kind":"arxiv","alias_value":"2206.07215","created_at":"2026-07-05T04:32:02Z"},{"alias_kind":"arxiv_version","alias_value":"2206.07215v1","created_at":"2026-07-05T04:32:02Z"},{"alias_kind":"doi","alias_value":"10.48550/arxiv.2206.07215","created_at":"2026-07-05T04:32:02Z"},{"alias_kind":"pith_short_12","alias_value":"CJDVFFIYFZH7","created_at":"2026-07-05T04:32:02Z"},{"alias_kind":"pith_short_16","alias_value":"CJDVFFIYFZH7V4TK","created_at":"2026-07-05T04:32:02Z"},{"alias_kind":"pith_short_8","alias_value":"CJDVFFIY","created_at":"2026-07-05T04:32:02Z"}],"graph_snapshots":[{"event_id":"sha256:a5e6b3049301d3a8b3ffc42df9307d668b33a87773d726f77b7ed337d14f8eae","target":"graph","created_at":"2026-07-05T04:32:02Z","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/2206.07215/integrity.json","findings":[],"snapshot_sha256":"c28c3603d3b5d939e8dc4c7e95fa8dfce3d595e45f758748cecf8e644a296938","summary":{"advisory":0,"by_detector":{},"critical":0,"informational":0}},"paper":{"abstract_excerpt":"The blockchain technology empowers secure, trustless, and privacy-preserving trading with cryptocurrencies. However, existing blockchain-based trading platforms only support trading cryptocurrencies with digital assets (e.g., NFTs). Although several payment service providers have started to accept cryptocurrency as a payment method for tangible goods (e.g., Visa, PayPal), customers still need to trust and hand over their private information to centralized E-commerce platforms (e.g., Amazon, eBay). To enable trustless and privacy-preserving trading between cryptocurrencies and real goods, we pr","authors_text":"Can Chen, Erqun Dong, Junliang Luo, Shuhao Zheng, Xue Liu","cross_cats":["cs.ET"],"headline":"","license":"http://creativecommons.org/licenses/by-nc-sa/4.0/","primary_cat":"cs.CR","submitted_at":"2022-06-15T00:01:06Z","title":"SPENDER: A Platform for Secure and Privacy-Preserving Decentralized P2P E-Commerce"},"references":{"count":0,"internal_anchors":0,"resolved_work":0,"sample":[],"snapshot_sha256":"258153158e38e3291e3d48162225fcdb2d5a3ed65a07baac614ab91432fd4f57"},"source":{"id":"2206.07215","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":"sha256:1f3132f5ea2188075f3744b263297843fbeb0b01819cd7cb31f9bd277bbdf94e","target":"record","created_at":"2026-07-05T04:32:02Z","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":"3909bbb09311229616e535642c0b9dc15d2e22efb8b9b8f2497fe8849fd7149b","cross_cats_sorted":["cs.ET"],"license":"http://creativecommons.org/licenses/by-nc-sa/4.0/","primary_cat":"cs.CR","submitted_at":"2022-06-15T00:01:06Z","title_canon_sha256":"02a56199d40b9c90462c4c513221f2ee192774aa80800369d3b779fa88782df8"},"schema_version":"1.0","source":{"id":"2206.07215","kind":"arxiv","version":1}},"canonical_sha256":"12475295182e4ffaf26a2001ac2c7789e19a3284cb6a9fc04f2473bbd0531d19","receipt":{"algorithm":"ed25519","builder_version":"pith-number-builder-2026-05-17-v1","canonical_sha256":"12475295182e4ffaf26a2001ac2c7789e19a3284cb6a9fc04f2473bbd0531d19","first_computed_at":"2026-07-05T04:32:02.381971Z","key_id":"pith-v1-2026-05","kind":"pith_receipt","last_reissued_at":"2026-07-05T04:32:02.381971Z","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54","receipt_version":"0.3","signature_b64":"PvjO0PUHfCCa5BinxxMvZ0PEMdWZ/aQWTBgTMPj8gonNvf9hjSxp3N9hMlsDR8XPh0yriPU/MQO9iszUI19TDw==","signature_status":"signed_v1","signed_at":"2026-07-05T04:32:02.382428Z","signed_message":"canonical_sha256_bytes"},"source_id":"2206.07215","source_kind":"arxiv","source_version":1}}},"equivocations":[],"invalid_events":[],"applied_event_ids":["sha256:1f3132f5ea2188075f3744b263297843fbeb0b01819cd7cb31f9bd277bbdf94e","sha256:a5e6b3049301d3a8b3ffc42df9307d668b33a87773d726f77b7ed337d14f8eae"],"state_sha256":"2a7ea7db75a841953909683a1f2bcd46e766dcf04872d3fac771f3d011bc6ba3"}