{"bundle_type":"pith_open_graph_bundle","bundle_version":"1.0","pith_number":"pith:2013:Y2GBY6NCEKZD337VUTTGWT4DML","short_pith_number":"pith:Y2GBY6NC","canonical_record":{"source":{"id":"1301.1019","kind":"arxiv","version":1},"metadata":{"license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"physics.data-an","submitted_at":"2013-01-06T16:25:52Z","cross_cats_sorted":["q-bio.TO"],"title_canon_sha256":"b09c439d109ed7fe63b43d2c6d4e0b2363c174b300fe98bfb13cd5de3a5c9ff1","abstract_canon_sha256":"d2fe9639327ec8661a18f384a5fbe2e1ef58926c0da7f11dc384467a2bd401b6"},"schema_version":"1.0"},"canonical_sha256":"c68c1c79a222b23deff5a4e66b4f8362e06a16fa9f3ca97226e0b6458e05ba6e","source":{"kind":"arxiv","id":"1301.1019","version":1},"source_aliases":[{"alias_kind":"arxiv","alias_value":"1301.1019","created_at":"2026-05-18T03:37:06Z"},{"alias_kind":"arxiv_version","alias_value":"1301.1019v1","created_at":"2026-05-18T03:37:06Z"},{"alias_kind":"doi","alias_value":"10.48550/arxiv.1301.1019","created_at":"2026-05-18T03:37:06Z"},{"alias_kind":"pith_short_12","alias_value":"Y2GBY6NCEKZD","created_at":"2026-05-18T12:28:06Z"},{"alias_kind":"pith_short_16","alias_value":"Y2GBY6NCEKZD337V","created_at":"2026-05-18T12:28:06Z"},{"alias_kind":"pith_short_8","alias_value":"Y2GBY6NC","created_at":"2026-05-18T12:28:06Z"}],"events":[{"event_type":"record_created","subject_pith_number":"pith:2013:Y2GBY6NCEKZD337VUTTGWT4DML","target":"record","payload":{"canonical_record":{"source":{"id":"1301.1019","kind":"arxiv","version":1},"metadata":{"license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"physics.data-an","submitted_at":"2013-01-06T16:25:52Z","cross_cats_sorted":["q-bio.TO"],"title_canon_sha256":"b09c439d109ed7fe63b43d2c6d4e0b2363c174b300fe98bfb13cd5de3a5c9ff1","abstract_canon_sha256":"d2fe9639327ec8661a18f384a5fbe2e1ef58926c0da7f11dc384467a2bd401b6"},"schema_version":"1.0"},"canonical_sha256":"c68c1c79a222b23deff5a4e66b4f8362e06a16fa9f3ca97226e0b6458e05ba6e","receipt":{"kind":"pith_receipt","key_id":"pith-v1-2026-05","algorithm":"ed25519","signed_at":"2026-05-18T03:37:06.989513Z","signature_b64":"qxyRmYAQ+BV4178F0RtMp4OOYNs/P8fiOoqaNtNcz+Q0naUKlFyENdV+VZvYDMWNDouaUNFZnH3oGwY0KMWyAg==","signed_message":"canonical_sha256_bytes","builder_version":"pith-number-builder-2026-05-17-v1","receipt_version":"0.3","canonical_sha256":"c68c1c79a222b23deff5a4e66b4f8362e06a16fa9f3ca97226e0b6458e05ba6e","last_reissued_at":"2026-05-18T03:37:06.988795Z","signature_status":"signed_v1","first_computed_at":"2026-05-18T03:37:06.988795Z","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54"},"source_kind":"arxiv","source_id":"1301.1019","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":"2026-05-18T03:37:06Z","supersedes":[],"prev_event":null,"signature":{"signature_status":"signed_v1","algorithm":"ed25519","key_id":"pith-v1-2026-05","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54","signature_b64":"USFrhiBlYKsR7jUWPJhq6VP+zt2d1GDInZo9BgovgSFNLewd1RRn9Bar/RFcvgIb7vGn+BqDn8wnwyoHigqNCQ==","signed_message":"open_graph_event_sha256_bytes","signed_at":"2026-06-01T07:51:42.764569Z"},"content_sha256":"80420df9a2405496c39766feb1aa721321880214d0ee815188e941421ad67945","schema_version":"1.0","event_id":"sha256:80420df9a2405496c39766feb1aa721321880214d0ee815188e941421ad67945"},{"event_type":"graph_snapshot","subject_pith_number":"pith:2013:Y2GBY6NCEKZD337VUTTGWT4DML","target":"graph","payload":{"graph_snapshot":{"paper":{"title":"Multifractal age? Multifractal analysis of cardiac interbeat intervals in assessing of healthy aging","license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","headline":"","cross_cats":["q-bio.TO"],"primary_cat":"physics.data-an","authors_text":"Andrzej Rynkiewicz, Danuta Makowiec, Joanna Wdowczyk-Szulc, Marcin Gruchal, Marta Zarczynska-Buchowiecka, Stanisaw Kryszewski","submitted_at":"2013-01-06T16:25:52Z","abstract_excerpt":"24-hour Holter recordings of 124 healthy people at different age are studied. The nocturnal signals of young people reveal the presence of the multiplicative structure. This structure is significantly weaker in diurnal signals and becomes less evident for elderly people. Multifractal analysis allows us to propose qualitative and quantitative methods to estimate the advancement of the aging process for healthy humans."},"claims":{"count":0,"items":[],"snapshot_sha256":"258153158e38e3291e3d48162225fcdb2d5a3ed65a07baac614ab91432fd4f57"},"source":{"id":"1301.1019","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":"2026-05-18T03:37:06Z","supersedes":[],"prev_event":null,"signature":{"signature_status":"signed_v1","algorithm":"ed25519","key_id":"pith-v1-2026-05","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54","signature_b64":"OAUz+Yqa/dcqb54LWLVLjNYdoAvikstQ9tzYySiRXov6t/GBdD3hUplGHMbqG8CYi/ivmmIef/7Q954/57gyCQ==","signed_message":"open_graph_event_sha256_bytes","signed_at":"2026-06-01T07:51:42.764903Z"},"content_sha256":"70eb5a60cf3ff353c0be5e77f0f737ba19e498ea908d215b35a18789aa42597b","schema_version":"1.0","event_id":"sha256:70eb5a60cf3ff353c0be5e77f0f737ba19e498ea908d215b35a18789aa42597b"}],"timestamp_proofs":[],"mirror_hints":[{"mirror_type":"https","name":"Pith Resolver","base_url":"https://pith.science","bundle_url":"https://pith.science/pith/Y2GBY6NCEKZD337VUTTGWT4DML/bundle.json","state_url":"https://pith.science/pith/Y2GBY6NCEKZD337VUTTGWT4DML/state.json","well_known_bundle_url":"https://pith.science/.well-known/pith/Y2GBY6NCEKZD337VUTTGWT4DML/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":"2026-06-01T07:51:42Z","links":{"resolver":"https://pith.science/pith/Y2GBY6NCEKZD337VUTTGWT4DML","bundle":"https://pith.science/pith/Y2GBY6NCEKZD337VUTTGWT4DML/bundle.json","state":"https://pith.science/pith/Y2GBY6NCEKZD337VUTTGWT4DML/state.json","well_known_bundle":"https://pith.science/.well-known/pith/Y2GBY6NCEKZD337VUTTGWT4DML/bundle.json"},"state":{"state_type":"pith_open_graph_state","state_version":"1.0","pith_number":"pith:2013:Y2GBY6NCEKZD337VUTTGWT4DML","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":"d2fe9639327ec8661a18f384a5fbe2e1ef58926c0da7f11dc384467a2bd401b6","cross_cats_sorted":["q-bio.TO"],"license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"physics.data-an","submitted_at":"2013-01-06T16:25:52Z","title_canon_sha256":"b09c439d109ed7fe63b43d2c6d4e0b2363c174b300fe98bfb13cd5de3a5c9ff1"},"schema_version":"1.0","source":{"id":"1301.1019","kind":"arxiv","version":1}},"source_aliases":[{"alias_kind":"arxiv","alias_value":"1301.1019","created_at":"2026-05-18T03:37:06Z"},{"alias_kind":"arxiv_version","alias_value":"1301.1019v1","created_at":"2026-05-18T03:37:06Z"},{"alias_kind":"doi","alias_value":"10.48550/arxiv.1301.1019","created_at":"2026-05-18T03:37:06Z"},{"alias_kind":"pith_short_12","alias_value":"Y2GBY6NCEKZD","created_at":"2026-05-18T12:28:06Z"},{"alias_kind":"pith_short_16","alias_value":"Y2GBY6NCEKZD337V","created_at":"2026-05-18T12:28:06Z"},{"alias_kind":"pith_short_8","alias_value":"Y2GBY6NC","created_at":"2026-05-18T12:28:06Z"}],"graph_snapshots":[{"event_id":"sha256:70eb5a60cf3ff353c0be5e77f0f737ba19e498ea908d215b35a18789aa42597b","target":"graph","created_at":"2026-05-18T03:37:06Z","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":"24-hour Holter recordings of 124 healthy people at different age are studied. The nocturnal signals of young people reveal the presence of the multiplicative structure. This structure is significantly weaker in diurnal signals and becomes less evident for elderly people. Multifractal analysis allows us to propose qualitative and quantitative methods to estimate the advancement of the aging process for healthy humans.","authors_text":"Andrzej Rynkiewicz, Danuta Makowiec, Joanna Wdowczyk-Szulc, Marcin Gruchal, Marta Zarczynska-Buchowiecka, Stanisaw Kryszewski","cross_cats":["q-bio.TO"],"headline":"","license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"physics.data-an","submitted_at":"2013-01-06T16:25:52Z","title":"Multifractal age? Multifractal analysis of cardiac interbeat intervals in assessing of healthy aging"},"references":{"count":0,"internal_anchors":0,"resolved_work":0,"sample":[],"snapshot_sha256":"258153158e38e3291e3d48162225fcdb2d5a3ed65a07baac614ab91432fd4f57"},"source":{"id":"1301.1019","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":"sha256:80420df9a2405496c39766feb1aa721321880214d0ee815188e941421ad67945","target":"record","created_at":"2026-05-18T03:37:06Z","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":"d2fe9639327ec8661a18f384a5fbe2e1ef58926c0da7f11dc384467a2bd401b6","cross_cats_sorted":["q-bio.TO"],"license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"physics.data-an","submitted_at":"2013-01-06T16:25:52Z","title_canon_sha256":"b09c439d109ed7fe63b43d2c6d4e0b2363c174b300fe98bfb13cd5de3a5c9ff1"},"schema_version":"1.0","source":{"id":"1301.1019","kind":"arxiv","version":1}},"canonical_sha256":"c68c1c79a222b23deff5a4e66b4f8362e06a16fa9f3ca97226e0b6458e05ba6e","receipt":{"algorithm":"ed25519","builder_version":"pith-number-builder-2026-05-17-v1","canonical_sha256":"c68c1c79a222b23deff5a4e66b4f8362e06a16fa9f3ca97226e0b6458e05ba6e","first_computed_at":"2026-05-18T03:37:06.988795Z","key_id":"pith-v1-2026-05","kind":"pith_receipt","last_reissued_at":"2026-05-18T03:37:06.988795Z","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54","receipt_version":"0.3","signature_b64":"qxyRmYAQ+BV4178F0RtMp4OOYNs/P8fiOoqaNtNcz+Q0naUKlFyENdV+VZvYDMWNDouaUNFZnH3oGwY0KMWyAg==","signature_status":"signed_v1","signed_at":"2026-05-18T03:37:06.989513Z","signed_message":"canonical_sha256_bytes"},"source_id":"1301.1019","source_kind":"arxiv","source_version":1}}},"equivocations":[],"invalid_events":[],"applied_event_ids":["sha256:80420df9a2405496c39766feb1aa721321880214d0ee815188e941421ad67945","sha256:70eb5a60cf3ff353c0be5e77f0f737ba19e498ea908d215b35a18789aa42597b"],"state_sha256":"46e48f507cb74cf0a326eddd555dd0aff91d8656b92db65b8466534c895676ed"},"bundle_signature":{"signature_status":"signed_v1","algorithm":"ed25519","key_id":"pith-v1-2026-05","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54","signature_b64":"Lb8kP5ggNB52wzbIOxdAHDmhkBLc7g5sXabKNCAyN6Fx6gdE9dQK/W7+tNSdX7m2ohvz4gLOvKUoy0GvAB/UCA==","signed_message":"bundle_sha256_bytes","signed_at":"2026-06-01T07:51:42.766784Z","bundle_sha256":"6be91c6ac2fd2af5e2713781d047e43b89610298349412005b947f44365d21b8"}}