{"bundle_type":"pith_open_graph_bundle","bundle_version":"1.0","pith_number":"pith:2018:ISP64CU5NAOCEIDMKTGIH4A7JV","short_pith_number":"pith:ISP64CU5","canonical_record":{"source":{"id":"1803.00646","kind":"arxiv","version":1},"metadata":{"license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"cs.CR","submitted_at":"2018-03-01T22:11:27Z","cross_cats_sorted":[],"title_canon_sha256":"9b648306fa871cbebbb843d902134a0b29fa47ac85f4cf2b76671eafb59395b4","abstract_canon_sha256":"9c229fb94d3bd4b36df2a8f656bb1c135b712a0d5756724840e00f2305be0e0e"},"schema_version":"1.0"},"canonical_sha256":"449fee0a9d681c22206c54cc83f01f4d44a0b85dd15de6efdf47c9259c4469b9","source":{"kind":"arxiv","id":"1803.00646","version":1},"source_aliases":[{"alias_kind":"arxiv","alias_value":"1803.00646","created_at":"2026-05-18T00:22:08Z"},{"alias_kind":"arxiv_version","alias_value":"1803.00646v1","created_at":"2026-05-18T00:22:08Z"},{"alias_kind":"doi","alias_value":"10.48550/arxiv.1803.00646","created_at":"2026-05-18T00:22:08Z"},{"alias_kind":"pith_short_12","alias_value":"ISP64CU5NAOC","created_at":"2026-05-18T12:32:31Z"},{"alias_kind":"pith_short_16","alias_value":"ISP64CU5NAOCEIDM","created_at":"2026-05-18T12:32:31Z"},{"alias_kind":"pith_short_8","alias_value":"ISP64CU5","created_at":"2026-05-18T12:32:31Z"}],"events":[{"event_type":"record_created","subject_pith_number":"pith:2018:ISP64CU5NAOCEIDMKTGIH4A7JV","target":"record","payload":{"canonical_record":{"source":{"id":"1803.00646","kind":"arxiv","version":1},"metadata":{"license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"cs.CR","submitted_at":"2018-03-01T22:11:27Z","cross_cats_sorted":[],"title_canon_sha256":"9b648306fa871cbebbb843d902134a0b29fa47ac85f4cf2b76671eafb59395b4","abstract_canon_sha256":"9c229fb94d3bd4b36df2a8f656bb1c135b712a0d5756724840e00f2305be0e0e"},"schema_version":"1.0"},"canonical_sha256":"449fee0a9d681c22206c54cc83f01f4d44a0b85dd15de6efdf47c9259c4469b9","receipt":{"kind":"pith_receipt","key_id":"pith-v1-2026-05","algorithm":"ed25519","signed_at":"2026-05-18T00:22:08.286548Z","signature_b64":"m3oa6ciQXM0DKekDPCuGSXI4h8nOPwtAS4Pdj+9FyXTFTX2BhTOcsYnxPtFbb3UNZxAHZ9EguABO+FjPlpkXDw==","signed_message":"canonical_sha256_bytes","builder_version":"pith-number-builder-2026-05-17-v1","receipt_version":"0.3","canonical_sha256":"449fee0a9d681c22206c54cc83f01f4d44a0b85dd15de6efdf47c9259c4469b9","last_reissued_at":"2026-05-18T00:22:08.286040Z","signature_status":"signed_v1","first_computed_at":"2026-05-18T00:22:08.286040Z","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54"},"source_kind":"arxiv","source_id":"1803.00646","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":"2026-05-18T00:22:08Z","supersedes":[],"prev_event":null,"signature":{"signature_status":"signed_v1","algorithm":"ed25519","key_id":"pith-v1-2026-05","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54","signature_b64":"XluBjBmRHIT13nN3vdFL1N4Xu7Ff5CAYGQSH6h/PCyUQ7YkmV4ZairK01X1oIs3rdGMhvMN2k/uaoSUUtnl3BA==","signed_message":"open_graph_event_sha256_bytes","signed_at":"2026-05-27T17:38:33.210561Z"},"content_sha256":"6987303d09cf400d285c7873f9b6bb6fab0a20d2e5d0ec1f8492d2f6a3e1e8f9","schema_version":"1.0","event_id":"sha256:6987303d09cf400d285c7873f9b6bb6fab0a20d2e5d0ec1f8492d2f6a3e1e8f9"},{"event_type":"graph_snapshot","subject_pith_number":"pith:2018:ISP64CU5NAOCEIDMKTGIH4A7JV","target":"graph","payload":{"graph_snapshot":{"paper":{"title":"Data mining for detecting Bitcoin Ponzi schemes","license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","headline":"","cross_cats":[],"primary_cat":"cs.CR","authors_text":"Barbara Pes, Massimo Bartoletti, Sergio Serusi","submitted_at":"2018-03-01T22:11:27Z","abstract_excerpt":"Soon after its introduction in 2009, Bitcoin has been adopted by cyber-criminals, which rely on its pseudonymity to implement virtually untraceable scams. One of the typical scams that operate on Bitcoin are the so-called Ponzi schemes. These are fraudulent investments which repay users with the funds invested by new users that join the scheme, and implode when it is no longer possible to find new investments. Despite being illegal in many countries, Ponzi schemes are now proliferating on Bitcoin, and they keep alluring new victims, who are plundered of millions of dollars. We apply data minin"},"claims":{"count":0,"items":[],"snapshot_sha256":"258153158e38e3291e3d48162225fcdb2d5a3ed65a07baac614ab91432fd4f57"},"source":{"id":"1803.00646","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":"2026-05-18T00:22:08Z","supersedes":[],"prev_event":null,"signature":{"signature_status":"signed_v1","algorithm":"ed25519","key_id":"pith-v1-2026-05","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54","signature_b64":"ZkUR5c1/KXcKLEyeGy8O0kcDf/KANjc99GiqtL4vvN2IwD68HMuwZ6z+0hUnMAPz42DLshr8FKld7CtnKwaFAQ==","signed_message":"open_graph_event_sha256_bytes","signed_at":"2026-05-27T17:38:33.210943Z"},"content_sha256":"14c08ce78f059b1ec456b6cc39679dcbd1a4319e765f7d9ddf4d24d1c4415095","schema_version":"1.0","event_id":"sha256:14c08ce78f059b1ec456b6cc39679dcbd1a4319e765f7d9ddf4d24d1c4415095"}],"timestamp_proofs":[],"mirror_hints":[{"mirror_type":"https","name":"Pith Resolver","base_url":"https://pith.science","bundle_url":"https://pith.science/pith/ISP64CU5NAOCEIDMKTGIH4A7JV/bundle.json","state_url":"https://pith.science/pith/ISP64CU5NAOCEIDMKTGIH4A7JV/state.json","well_known_bundle_url":"https://pith.science/.well-known/pith/ISP64CU5NAOCEIDMKTGIH4A7JV/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":"2026-05-27T17:38:33Z","links":{"resolver":"https://pith.science/pith/ISP64CU5NAOCEIDMKTGIH4A7JV","bundle":"https://pith.science/pith/ISP64CU5NAOCEIDMKTGIH4A7JV/bundle.json","state":"https://pith.science/pith/ISP64CU5NAOCEIDMKTGIH4A7JV/state.json","well_known_bundle":"https://pith.science/.well-known/pith/ISP64CU5NAOCEIDMKTGIH4A7JV/bundle.json"},"state":{"state_type":"pith_open_graph_state","state_version":"1.0","pith_number":"pith:2018:ISP64CU5NAOCEIDMKTGIH4A7JV","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":"9c229fb94d3bd4b36df2a8f656bb1c135b712a0d5756724840e00f2305be0e0e","cross_cats_sorted":[],"license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"cs.CR","submitted_at":"2018-03-01T22:11:27Z","title_canon_sha256":"9b648306fa871cbebbb843d902134a0b29fa47ac85f4cf2b76671eafb59395b4"},"schema_version":"1.0","source":{"id":"1803.00646","kind":"arxiv","version":1}},"source_aliases":[{"alias_kind":"arxiv","alias_value":"1803.00646","created_at":"2026-05-18T00:22:08Z"},{"alias_kind":"arxiv_version","alias_value":"1803.00646v1","created_at":"2026-05-18T00:22:08Z"},{"alias_kind":"doi","alias_value":"10.48550/arxiv.1803.00646","created_at":"2026-05-18T00:22:08Z"},{"alias_kind":"pith_short_12","alias_value":"ISP64CU5NAOC","created_at":"2026-05-18T12:32:31Z"},{"alias_kind":"pith_short_16","alias_value":"ISP64CU5NAOCEIDM","created_at":"2026-05-18T12:32:31Z"},{"alias_kind":"pith_short_8","alias_value":"ISP64CU5","created_at":"2026-05-18T12:32:31Z"}],"graph_snapshots":[{"event_id":"sha256:14c08ce78f059b1ec456b6cc39679dcbd1a4319e765f7d9ddf4d24d1c4415095","target":"graph","created_at":"2026-05-18T00:22:08Z","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":"Soon after its introduction in 2009, Bitcoin has been adopted by cyber-criminals, which rely on its pseudonymity to implement virtually untraceable scams. One of the typical scams that operate on Bitcoin are the so-called Ponzi schemes. These are fraudulent investments which repay users with the funds invested by new users that join the scheme, and implode when it is no longer possible to find new investments. Despite being illegal in many countries, Ponzi schemes are now proliferating on Bitcoin, and they keep alluring new victims, who are plundered of millions of dollars. We apply data minin","authors_text":"Barbara Pes, Massimo Bartoletti, Sergio Serusi","cross_cats":[],"headline":"","license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"cs.CR","submitted_at":"2018-03-01T22:11:27Z","title":"Data mining for detecting Bitcoin Ponzi schemes"},"references":{"count":0,"internal_anchors":0,"resolved_work":0,"sample":[],"snapshot_sha256":"258153158e38e3291e3d48162225fcdb2d5a3ed65a07baac614ab91432fd4f57"},"source":{"id":"1803.00646","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":"sha256:6987303d09cf400d285c7873f9b6bb6fab0a20d2e5d0ec1f8492d2f6a3e1e8f9","target":"record","created_at":"2026-05-18T00:22:08Z","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":"9c229fb94d3bd4b36df2a8f656bb1c135b712a0d5756724840e00f2305be0e0e","cross_cats_sorted":[],"license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"cs.CR","submitted_at":"2018-03-01T22:11:27Z","title_canon_sha256":"9b648306fa871cbebbb843d902134a0b29fa47ac85f4cf2b76671eafb59395b4"},"schema_version":"1.0","source":{"id":"1803.00646","kind":"arxiv","version":1}},"canonical_sha256":"449fee0a9d681c22206c54cc83f01f4d44a0b85dd15de6efdf47c9259c4469b9","receipt":{"algorithm":"ed25519","builder_version":"pith-number-builder-2026-05-17-v1","canonical_sha256":"449fee0a9d681c22206c54cc83f01f4d44a0b85dd15de6efdf47c9259c4469b9","first_computed_at":"2026-05-18T00:22:08.286040Z","key_id":"pith-v1-2026-05","kind":"pith_receipt","last_reissued_at":"2026-05-18T00:22:08.286040Z","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54","receipt_version":"0.3","signature_b64":"m3oa6ciQXM0DKekDPCuGSXI4h8nOPwtAS4Pdj+9FyXTFTX2BhTOcsYnxPtFbb3UNZxAHZ9EguABO+FjPlpkXDw==","signature_status":"signed_v1","signed_at":"2026-05-18T00:22:08.286548Z","signed_message":"canonical_sha256_bytes"},"source_id":"1803.00646","source_kind":"arxiv","source_version":1}}},"equivocations":[],"invalid_events":[],"applied_event_ids":["sha256:6987303d09cf400d285c7873f9b6bb6fab0a20d2e5d0ec1f8492d2f6a3e1e8f9","sha256:14c08ce78f059b1ec456b6cc39679dcbd1a4319e765f7d9ddf4d24d1c4415095"],"state_sha256":"249289f08542c2df7fe97f314f3c9700b43bc472f6fddfe93fbafad75eed1140"},"bundle_signature":{"signature_status":"signed_v1","algorithm":"ed25519","key_id":"pith-v1-2026-05","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54","signature_b64":"Ml9Nu6ah3kdHbVB0mOeh13m9+Y5CLuFBysF/m6F5jp4EZaFobQoQUMuLujbk305rgj19L4mnLcSKl95tnkB8Dg==","signed_message":"bundle_sha256_bytes","signed_at":"2026-05-27T17:38:33.213396Z","bundle_sha256":"06bfc82bb98215c53dfcb6fed3f485eeba386321ff9403e5f1dbacaecba49fe1"}}