{"bundle_type":"pith_open_graph_bundle","bundle_version":"1.0","pith_number":"pith:2011:W2Z77VILNY7QWMFG4MJL2YNHR2","short_pith_number":"pith:W2Z77VIL","canonical_record":{"source":{"id":"1102.0687","kind":"arxiv","version":1},"metadata":{"license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"q-fin.TR","submitted_at":"2011-02-03T14:01:27Z","cross_cats_sorted":[],"title_canon_sha256":"4ca7ecd2fc2a7e342b1c96acc3eedcf2f8b5ba01b9b44b420243796cd80abc2b","abstract_canon_sha256":"2ed22fca6d29b211fe15ec25d9a78918d6bfc8a74f9cf50ecf67358d53fa4196"},"schema_version":"1.0"},"canonical_sha256":"b6b3ffd50b6e3f0b30a6e312bd61a78e8039de4edfe0cbe51cc716697ef449d8","source":{"kind":"arxiv","id":"1102.0687","version":1},"source_aliases":[{"alias_kind":"arxiv","alias_value":"1102.0687","created_at":"2026-05-18T02:22:40Z"},{"alias_kind":"arxiv_version","alias_value":"1102.0687v1","created_at":"2026-05-18T02:22:40Z"},{"alias_kind":"doi","alias_value":"10.48550/arxiv.1102.0687","created_at":"2026-05-18T02:22:40Z"},{"alias_kind":"pith_short_12","alias_value":"W2Z77VILNY7Q","created_at":"2026-05-18T12:26:44Z"},{"alias_kind":"pith_short_16","alias_value":"W2Z77VILNY7QWMFG","created_at":"2026-05-18T12:26:44Z"},{"alias_kind":"pith_short_8","alias_value":"W2Z77VIL","created_at":"2026-05-18T12:26:44Z"}],"events":[{"event_type":"record_created","subject_pith_number":"pith:2011:W2Z77VILNY7QWMFG4MJL2YNHR2","target":"record","payload":{"canonical_record":{"source":{"id":"1102.0687","kind":"arxiv","version":1},"metadata":{"license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"q-fin.TR","submitted_at":"2011-02-03T14:01:27Z","cross_cats_sorted":[],"title_canon_sha256":"4ca7ecd2fc2a7e342b1c96acc3eedcf2f8b5ba01b9b44b420243796cd80abc2b","abstract_canon_sha256":"2ed22fca6d29b211fe15ec25d9a78918d6bfc8a74f9cf50ecf67358d53fa4196"},"schema_version":"1.0"},"canonical_sha256":"b6b3ffd50b6e3f0b30a6e312bd61a78e8039de4edfe0cbe51cc716697ef449d8","receipt":{"kind":"pith_receipt","key_id":"pith-v1-2026-05","algorithm":"ed25519","signed_at":"2026-05-18T02:22:40.895266Z","signature_b64":"ql2HwaUkxLU3hcDIhbm6hr0li6nuTTAIMRaz8Y8locfUS+dvgceFZgwoagJAIQAUflkhtuvvjQVb63nWGczEBg==","signed_message":"canonical_sha256_bytes","builder_version":"pith-number-builder-2026-05-17-v1","receipt_version":"0.3","canonical_sha256":"b6b3ffd50b6e3f0b30a6e312bd61a78e8039de4edfe0cbe51cc716697ef449d8","last_reissued_at":"2026-05-18T02:22:40.894560Z","signature_status":"signed_v1","first_computed_at":"2026-05-18T02:22:40.894560Z","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54"},"source_kind":"arxiv","source_id":"1102.0687","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":"2026-05-18T02:22:40Z","supersedes":[],"prev_event":null,"signature":{"signature_status":"signed_v1","algorithm":"ed25519","key_id":"pith-v1-2026-05","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54","signature_b64":"7UGqDSV+iDjqrTFe7qlCvNX4qfWjfdixDE0F1Mi5ieKO4mCR6jvdHqS2xJrYI7Mrf4BFE2Os1VKGBtnIEQCnDQ==","signed_message":"open_graph_event_sha256_bytes","signed_at":"2026-06-25T18:02:16.508701Z"},"content_sha256":"85d16cc63e6ce36936ae7cf08422fc8a4a140f468b2757e99f6965afd16dc2b9","schema_version":"1.0","event_id":"sha256:85d16cc63e6ce36936ae7cf08422fc8a4a140f468b2757e99f6965afd16dc2b9"},{"event_type":"graph_snapshot","subject_pith_number":"pith:2011:W2Z77VILNY7QWMFG4MJL2YNHR2","target":"graph","payload":{"graph_snapshot":{"paper":{"title":"Trading activity and price impact in parallel markets: SETS vs. off-book market at the London Stock Exchange","license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","headline":"","cross_cats":[],"primary_cat":"q-fin.TR","authors_text":"Angelo Carollo, Fabrizio Lillo, Gabriella Vaglica, Rosario N. Mantegna","submitted_at":"2011-02-03T14:01:27Z","abstract_excerpt":"We empirically study the trading activity in the electronic on-book segment and in the dealership off-book segment of the London Stock Exchange, investigating separately the trading of active market members and of other market participants which are non-members. We find that (i) the volume distribution of off-book transactions has a significantly fatter tail than the one of on-book transactions, (ii) groups of members and non-members can be classified in categories according to their trading profile (iii) there is a strong anticorrelation between the daily inventory variation of a market membe"},"claims":{"count":0,"items":[],"snapshot_sha256":"258153158e38e3291e3d48162225fcdb2d5a3ed65a07baac614ab91432fd4f57"},"source":{"id":"1102.0687","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":"2026-05-18T02:22:40Z","supersedes":[],"prev_event":null,"signature":{"signature_status":"signed_v1","algorithm":"ed25519","key_id":"pith-v1-2026-05","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54","signature_b64":"x8LdAJVdDTTiDv/YgGRr8e69qfw1IGzqwBQREpFmnSwWnQA5QrJc9ZhihJ8f+ak+oJvyu1DxnU19nuX3MkETDw==","signed_message":"open_graph_event_sha256_bytes","signed_at":"2026-06-25T18:02:16.509042Z"},"content_sha256":"5101217d7916acbf489b9131a4d9e497ec748de450a1a250c402870739e44acb","schema_version":"1.0","event_id":"sha256:5101217d7916acbf489b9131a4d9e497ec748de450a1a250c402870739e44acb"}],"timestamp_proofs":[],"mirror_hints":[{"mirror_type":"https","name":"Pith Resolver","base_url":"https://pith.science","bundle_url":"https://pith.science/pith/W2Z77VILNY7QWMFG4MJL2YNHR2/bundle.json","state_url":"https://pith.science/pith/W2Z77VILNY7QWMFG4MJL2YNHR2/state.json","well_known_bundle_url":"https://pith.science/.well-known/pith/W2Z77VILNY7QWMFG4MJL2YNHR2/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":"2026-06-25T18:02:16Z","links":{"resolver":"https://pith.science/pith/W2Z77VILNY7QWMFG4MJL2YNHR2","bundle":"https://pith.science/pith/W2Z77VILNY7QWMFG4MJL2YNHR2/bundle.json","state":"https://pith.science/pith/W2Z77VILNY7QWMFG4MJL2YNHR2/state.json","well_known_bundle":"https://pith.science/.well-known/pith/W2Z77VILNY7QWMFG4MJL2YNHR2/bundle.json"},"state":{"state_type":"pith_open_graph_state","state_version":"1.0","pith_number":"pith:2011:W2Z77VILNY7QWMFG4MJL2YNHR2","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":"2ed22fca6d29b211fe15ec25d9a78918d6bfc8a74f9cf50ecf67358d53fa4196","cross_cats_sorted":[],"license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"q-fin.TR","submitted_at":"2011-02-03T14:01:27Z","title_canon_sha256":"4ca7ecd2fc2a7e342b1c96acc3eedcf2f8b5ba01b9b44b420243796cd80abc2b"},"schema_version":"1.0","source":{"id":"1102.0687","kind":"arxiv","version":1}},"source_aliases":[{"alias_kind":"arxiv","alias_value":"1102.0687","created_at":"2026-05-18T02:22:40Z"},{"alias_kind":"arxiv_version","alias_value":"1102.0687v1","created_at":"2026-05-18T02:22:40Z"},{"alias_kind":"doi","alias_value":"10.48550/arxiv.1102.0687","created_at":"2026-05-18T02:22:40Z"},{"alias_kind":"pith_short_12","alias_value":"W2Z77VILNY7Q","created_at":"2026-05-18T12:26:44Z"},{"alias_kind":"pith_short_16","alias_value":"W2Z77VILNY7QWMFG","created_at":"2026-05-18T12:26:44Z"},{"alias_kind":"pith_short_8","alias_value":"W2Z77VIL","created_at":"2026-05-18T12:26:44Z"}],"graph_snapshots":[{"event_id":"sha256:5101217d7916acbf489b9131a4d9e497ec748de450a1a250c402870739e44acb","target":"graph","created_at":"2026-05-18T02:22:40Z","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 empirically study the trading activity in the electronic on-book segment and in the dealership off-book segment of the London Stock Exchange, investigating separately the trading of active market members and of other market participants which are non-members. We find that (i) the volume distribution of off-book transactions has a significantly fatter tail than the one of on-book transactions, (ii) groups of members and non-members can be classified in categories according to their trading profile (iii) there is a strong anticorrelation between the daily inventory variation of a market membe","authors_text":"Angelo Carollo, Fabrizio Lillo, Gabriella Vaglica, Rosario N. Mantegna","cross_cats":[],"headline":"","license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"q-fin.TR","submitted_at":"2011-02-03T14:01:27Z","title":"Trading activity and price impact in parallel markets: SETS vs. off-book market at the London Stock Exchange"},"references":{"count":0,"internal_anchors":0,"resolved_work":0,"sample":[],"snapshot_sha256":"258153158e38e3291e3d48162225fcdb2d5a3ed65a07baac614ab91432fd4f57"},"source":{"id":"1102.0687","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":"sha256:85d16cc63e6ce36936ae7cf08422fc8a4a140f468b2757e99f6965afd16dc2b9","target":"record","created_at":"2026-05-18T02:22:40Z","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":"2ed22fca6d29b211fe15ec25d9a78918d6bfc8a74f9cf50ecf67358d53fa4196","cross_cats_sorted":[],"license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"q-fin.TR","submitted_at":"2011-02-03T14:01:27Z","title_canon_sha256":"4ca7ecd2fc2a7e342b1c96acc3eedcf2f8b5ba01b9b44b420243796cd80abc2b"},"schema_version":"1.0","source":{"id":"1102.0687","kind":"arxiv","version":1}},"canonical_sha256":"b6b3ffd50b6e3f0b30a6e312bd61a78e8039de4edfe0cbe51cc716697ef449d8","receipt":{"algorithm":"ed25519","builder_version":"pith-number-builder-2026-05-17-v1","canonical_sha256":"b6b3ffd50b6e3f0b30a6e312bd61a78e8039de4edfe0cbe51cc716697ef449d8","first_computed_at":"2026-05-18T02:22:40.894560Z","key_id":"pith-v1-2026-05","kind":"pith_receipt","last_reissued_at":"2026-05-18T02:22:40.894560Z","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54","receipt_version":"0.3","signature_b64":"ql2HwaUkxLU3hcDIhbm6hr0li6nuTTAIMRaz8Y8locfUS+dvgceFZgwoagJAIQAUflkhtuvvjQVb63nWGczEBg==","signature_status":"signed_v1","signed_at":"2026-05-18T02:22:40.895266Z","signed_message":"canonical_sha256_bytes"},"source_id":"1102.0687","source_kind":"arxiv","source_version":1}}},"equivocations":[],"invalid_events":[],"applied_event_ids":["sha256:85d16cc63e6ce36936ae7cf08422fc8a4a140f468b2757e99f6965afd16dc2b9","sha256:5101217d7916acbf489b9131a4d9e497ec748de450a1a250c402870739e44acb"],"state_sha256":"9e5f2097ccd942f7489d8879d15a691c1e87607afe4fb5f422f3d87ef775d498"},"bundle_signature":{"signature_status":"signed_v1","algorithm":"ed25519","key_id":"pith-v1-2026-05","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54","signature_b64":"wr0MnqiUZHFnRbhTc8/CpXja5CjK/GHaQ0NsFJ40QU2R8zi9Sp6W7AXxEy4rBPrmBaDqCj4Tk6RRvsAHa+k2AQ==","signed_message":"bundle_sha256_bytes","signed_at":"2026-06-25T18:02:16.510885Z","bundle_sha256":"74edce7483d8187cd2fabd25ebb881bbe06dde07ff528d740389b21fdec4a760"}}