{"bundle_type":"pith_open_graph_bundle","bundle_version":"1.0","pith_number":"pith:2016:UIYLCNGD6RXPMHPJROKT76TZMJ","short_pith_number":"pith:UIYLCNGD","canonical_record":{"source":{"id":"1602.00629","kind":"arxiv","version":1},"metadata":{"license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"q-fin.ST","submitted_at":"2016-02-01T18:31:22Z","cross_cats_sorted":[],"title_canon_sha256":"108b67d3bc4b98806ee9b343e7cf6e9a832fde60c19ee6a235dc33ceec1245f9","abstract_canon_sha256":"8f0aa2f2e3f62371efbee2409aa7b381bf8ec07896e540a89e8ebcc52497af3a"},"schema_version":"1.0"},"canonical_sha256":"a230b134c3f46ef61de98b953ffa796266c8ac1a51c3d024fd59e6a7373ab6b7","source":{"kind":"arxiv","id":"1602.00629","version":1},"source_aliases":[{"alias_kind":"arxiv","alias_value":"1602.00629","created_at":"2026-05-18T01:21:33Z"},{"alias_kind":"arxiv_version","alias_value":"1602.00629v1","created_at":"2026-05-18T01:21:33Z"},{"alias_kind":"doi","alias_value":"10.48550/arxiv.1602.00629","created_at":"2026-05-18T01:21:33Z"},{"alias_kind":"pith_short_12","alias_value":"UIYLCNGD6RXP","created_at":"2026-05-18T12:30:46Z"},{"alias_kind":"pith_short_16","alias_value":"UIYLCNGD6RXPMHPJ","created_at":"2026-05-18T12:30:46Z"},{"alias_kind":"pith_short_8","alias_value":"UIYLCNGD","created_at":"2026-05-18T12:30:46Z"}],"events":[{"event_type":"record_created","subject_pith_number":"pith:2016:UIYLCNGD6RXPMHPJROKT76TZMJ","target":"record","payload":{"canonical_record":{"source":{"id":"1602.00629","kind":"arxiv","version":1},"metadata":{"license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"q-fin.ST","submitted_at":"2016-02-01T18:31:22Z","cross_cats_sorted":[],"title_canon_sha256":"108b67d3bc4b98806ee9b343e7cf6e9a832fde60c19ee6a235dc33ceec1245f9","abstract_canon_sha256":"8f0aa2f2e3f62371efbee2409aa7b381bf8ec07896e540a89e8ebcc52497af3a"},"schema_version":"1.0"},"canonical_sha256":"a230b134c3f46ef61de98b953ffa796266c8ac1a51c3d024fd59e6a7373ab6b7","receipt":{"kind":"pith_receipt","key_id":"pith-v1-2026-05","algorithm":"ed25519","signed_at":"2026-05-18T01:21:33.218948Z","signature_b64":"q24iQ1QwMQ1A6Z6maSxk5cwbeaNno/6DwpxaHu4SlkgIK2mVAD9zacbTO1b+PdczeInNHRjHX4nuXVeDqNaqDw==","signed_message":"canonical_sha256_bytes","builder_version":"pith-number-builder-2026-05-17-v1","receipt_version":"0.3","canonical_sha256":"a230b134c3f46ef61de98b953ffa796266c8ac1a51c3d024fd59e6a7373ab6b7","last_reissued_at":"2026-05-18T01:21:33.218292Z","signature_status":"signed_v1","first_computed_at":"2026-05-18T01:21:33.218292Z","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54"},"source_kind":"arxiv","source_id":"1602.00629","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":"2026-05-18T01:21:33Z","supersedes":[],"prev_event":null,"signature":{"signature_status":"signed_v1","algorithm":"ed25519","key_id":"pith-v1-2026-05","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54","signature_b64":"icQL1rq4wph7bBCiYR2LhjCHAkyALSgD/fDgF7P8RflvwF0U/1UVYLjCQFf6PyKSncIMccUZkNQYyuW8l7cXBg==","signed_message":"open_graph_event_sha256_bytes","signed_at":"2026-06-03T16:36:50.896542Z"},"content_sha256":"e897c12673a96b7de9832bfb70a28e5ad81308753960baa59da4d4f261b4327d","schema_version":"1.0","event_id":"sha256:e897c12673a96b7de9832bfb70a28e5ad81308753960baa59da4d4f261b4327d"},{"event_type":"graph_snapshot","subject_pith_number":"pith:2016:UIYLCNGD6RXPMHPJROKT76TZMJ","target":"graph","payload":{"graph_snapshot":{"paper":{"title":"How to improve accuracy for DFA technique","license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","headline":"","cross_cats":[],"primary_cat":"q-fin.ST","authors_text":"Alessandro Stringhi, Silvia Figini","submitted_at":"2016-02-01T18:31:22Z","abstract_excerpt":"This paper extends the existing literature on empirical estimation of the confidence intervals associated to the Detrended Fluctuation Analysis (DFA). We used Montecarlo simulation to evaluate the confidence intervals. Varying the parameters in DFA technique, we point out the relationship between those and the standard deviation of H. The parameters considered are the finite time length L, the number of divisors d used and the values of those. We found that all these parameters play a crucial role, determining the accuracy of the estimation of H."},"claims":{"count":0,"items":[],"snapshot_sha256":"258153158e38e3291e3d48162225fcdb2d5a3ed65a07baac614ab91432fd4f57"},"source":{"id":"1602.00629","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":"2026-05-18T01:21:33Z","supersedes":[],"prev_event":null,"signature":{"signature_status":"signed_v1","algorithm":"ed25519","key_id":"pith-v1-2026-05","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54","signature_b64":"75hcU+v/Inldv2tBN+F+aWakdoXAIltwpLtKXtKhrmX62E7mPisGG4Dby57+9XreYkroC167y1/huqQZbGdTDg==","signed_message":"open_graph_event_sha256_bytes","signed_at":"2026-06-03T16:36:50.896898Z"},"content_sha256":"1fc98b043a3f399b0286d5ee4dbf12ecbe4e4df1b6b69a8f6a7a42c9833d2d09","schema_version":"1.0","event_id":"sha256:1fc98b043a3f399b0286d5ee4dbf12ecbe4e4df1b6b69a8f6a7a42c9833d2d09"}],"timestamp_proofs":[],"mirror_hints":[{"mirror_type":"https","name":"Pith Resolver","base_url":"https://pith.science","bundle_url":"https://pith.science/pith/UIYLCNGD6RXPMHPJROKT76TZMJ/bundle.json","state_url":"https://pith.science/pith/UIYLCNGD6RXPMHPJROKT76TZMJ/state.json","well_known_bundle_url":"https://pith.science/.well-known/pith/UIYLCNGD6RXPMHPJROKT76TZMJ/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":"2026-06-03T16:36:50Z","links":{"resolver":"https://pith.science/pith/UIYLCNGD6RXPMHPJROKT76TZMJ","bundle":"https://pith.science/pith/UIYLCNGD6RXPMHPJROKT76TZMJ/bundle.json","state":"https://pith.science/pith/UIYLCNGD6RXPMHPJROKT76TZMJ/state.json","well_known_bundle":"https://pith.science/.well-known/pith/UIYLCNGD6RXPMHPJROKT76TZMJ/bundle.json"},"state":{"state_type":"pith_open_graph_state","state_version":"1.0","pith_number":"pith:2016:UIYLCNGD6RXPMHPJROKT76TZMJ","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":"8f0aa2f2e3f62371efbee2409aa7b381bf8ec07896e540a89e8ebcc52497af3a","cross_cats_sorted":[],"license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"q-fin.ST","submitted_at":"2016-02-01T18:31:22Z","title_canon_sha256":"108b67d3bc4b98806ee9b343e7cf6e9a832fde60c19ee6a235dc33ceec1245f9"},"schema_version":"1.0","source":{"id":"1602.00629","kind":"arxiv","version":1}},"source_aliases":[{"alias_kind":"arxiv","alias_value":"1602.00629","created_at":"2026-05-18T01:21:33Z"},{"alias_kind":"arxiv_version","alias_value":"1602.00629v1","created_at":"2026-05-18T01:21:33Z"},{"alias_kind":"doi","alias_value":"10.48550/arxiv.1602.00629","created_at":"2026-05-18T01:21:33Z"},{"alias_kind":"pith_short_12","alias_value":"UIYLCNGD6RXP","created_at":"2026-05-18T12:30:46Z"},{"alias_kind":"pith_short_16","alias_value":"UIYLCNGD6RXPMHPJ","created_at":"2026-05-18T12:30:46Z"},{"alias_kind":"pith_short_8","alias_value":"UIYLCNGD","created_at":"2026-05-18T12:30:46Z"}],"graph_snapshots":[{"event_id":"sha256:1fc98b043a3f399b0286d5ee4dbf12ecbe4e4df1b6b69a8f6a7a42c9833d2d09","target":"graph","created_at":"2026-05-18T01:21:33Z","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":"This paper extends the existing literature on empirical estimation of the confidence intervals associated to the Detrended Fluctuation Analysis (DFA). We used Montecarlo simulation to evaluate the confidence intervals. Varying the parameters in DFA technique, we point out the relationship between those and the standard deviation of H. The parameters considered are the finite time length L, the number of divisors d used and the values of those. We found that all these parameters play a crucial role, determining the accuracy of the estimation of H.","authors_text":"Alessandro Stringhi, Silvia Figini","cross_cats":[],"headline":"","license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"q-fin.ST","submitted_at":"2016-02-01T18:31:22Z","title":"How to improve accuracy for DFA technique"},"references":{"count":0,"internal_anchors":0,"resolved_work":0,"sample":[],"snapshot_sha256":"258153158e38e3291e3d48162225fcdb2d5a3ed65a07baac614ab91432fd4f57"},"source":{"id":"1602.00629","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:e897c12673a96b7de9832bfb70a28e5ad81308753960baa59da4d4f261b4327d","target":"record","created_at":"2026-05-18T01:21:33Z","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":"8f0aa2f2e3f62371efbee2409aa7b381bf8ec07896e540a89e8ebcc52497af3a","cross_cats_sorted":[],"license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"q-fin.ST","submitted_at":"2016-02-01T18:31:22Z","title_canon_sha256":"108b67d3bc4b98806ee9b343e7cf6e9a832fde60c19ee6a235dc33ceec1245f9"},"schema_version":"1.0","source":{"id":"1602.00629","kind":"arxiv","version":1}},"canonical_sha256":"a230b134c3f46ef61de98b953ffa796266c8ac1a51c3d024fd59e6a7373ab6b7","receipt":{"algorithm":"ed25519","builder_version":"pith-number-builder-2026-05-17-v1","canonical_sha256":"a230b134c3f46ef61de98b953ffa796266c8ac1a51c3d024fd59e6a7373ab6b7","first_computed_at":"2026-05-18T01:21:33.218292Z","key_id":"pith-v1-2026-05","kind":"pith_receipt","last_reissued_at":"2026-05-18T01:21:33.218292Z","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54","receipt_version":"0.3","signature_b64":"q24iQ1QwMQ1A6Z6maSxk5cwbeaNno/6DwpxaHu4SlkgIK2mVAD9zacbTO1b+PdczeInNHRjHX4nuXVeDqNaqDw==","signature_status":"signed_v1","signed_at":"2026-05-18T01:21:33.218948Z","signed_message":"canonical_sha256_bytes"},"source_id":"1602.00629","source_kind":"arxiv","source_version":1}}},"equivocations":[],"invalid_events":[],"applied_event_ids":["sha256:e897c12673a96b7de9832bfb70a28e5ad81308753960baa59da4d4f261b4327d","sha256:1fc98b043a3f399b0286d5ee4dbf12ecbe4e4df1b6b69a8f6a7a42c9833d2d09"],"state_sha256":"23c62c6b37b3ad2511ab8af66537c54bf25193871175fed4ea956eb85ca1c80d"},"bundle_signature":{"signature_status":"signed_v1","algorithm":"ed25519","key_id":"pith-v1-2026-05","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54","signature_b64":"4ChoyHNKXi3YPLx1thWiG+sBDQEUV9aVUGLl0cPNAlb0GG9wuqEunuEbSBBenpQr/1n8FRkuDneSnf8Wk3MHBw==","signed_message":"bundle_sha256_bytes","signed_at":"2026-06-03T16:36:50.898969Z","bundle_sha256":"e9aab3b91737a7fec008b42bc797416864c65860aef673587744ea7a9fd0e6c2"}}