{"record_type":"pith_number_record","schema_url":"https://pith.science/schemas/pith-number/v1.json","pith_number":"pith:2012:Z2BN6BBIVM65AHVKMADA6RXZNN","short_pith_number":"pith:Z2BN6BBI","schema_version":"1.0","canonical_sha256":"ce82df0428ab3dd01eaa60060f46f96b798b752be4eeea4f84437f35b8f99767","source":{"kind":"arxiv","id":"1205.0321","version":2},"attestation_state":"computed","paper":{"title":"The span of correlations in dolphin whistle sequences","license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","headline":"","cross_cats":["physics.data-an"],"primary_cat":"q-bio.NC","authors_text":"Brenda McCowan, Ramon Ferrer-i-Cancho","submitted_at":"2012-05-02T04:49:19Z","abstract_excerpt":"Long-range correlations are found in symbolic sequences from human language, music and DNA. Determining the span of correlations in dolphin whistle sequences is crucial for shedding light on their communicative complexity. Dolphin whistles share various statistical properties with human words, i.e. Zipf's law for word frequencies (namely that the probability of the $i$th most frequent word of a text is about $i^{-\\alpha}$) and a parallel of the tendency of more frequent words to have more meanings. The finding of Zipf's law for word frequencies in dolphin whistles has been the topic of an inte"},"verification_status":{"content_addressed":true,"pith_receipt":true,"author_attested":false,"weak_author_claims":0,"strong_author_claims":0,"externally_anchored":false,"storage_verified":false,"citation_signatures":0,"replication_records":0,"graph_snapshot":true,"references_resolved":false,"formal_links_present":false},"canonical_record":{"source":{"id":"1205.0321","kind":"arxiv","version":2},"metadata":{"license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"q-bio.NC","submitted_at":"2012-05-02T04:49:19Z","cross_cats_sorted":["physics.data-an"],"title_canon_sha256":"87ec8374aa54dcfbb215dba819ca3e78fa5576a0bb95a971c8b504c46ed90d5b","abstract_canon_sha256":"35c23941e49f2a8ab3c8874e46c38d40a247d1a48677c8b67373bff785d2efc3"},"schema_version":"1.0"},"receipt":{"kind":"pith_receipt","key_id":"pith-v1-2026-05","algorithm":"ed25519","signed_at":"2026-05-18T02:32:22.788063Z","signature_b64":"zE8JC2TE3hPR6mfjqpe1aBmiAjBmpMtn2YEX9b7edrJS/wfNZelsn8m2l5hhYUHMiLOOT7peRLVEKxFd2ug4BA==","signed_message":"canonical_sha256_bytes","builder_version":"pith-number-builder-2026-05-17-v1","receipt_version":"0.3","canonical_sha256":"ce82df0428ab3dd01eaa60060f46f96b798b752be4eeea4f84437f35b8f99767","last_reissued_at":"2026-05-18T02:32:22.787672Z","signature_status":"signed_v1","first_computed_at":"2026-05-18T02:32:22.787672Z","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54"},"graph_snapshot":{"paper":{"title":"The span of correlations in dolphin whistle sequences","license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","headline":"","cross_cats":["physics.data-an"],"primary_cat":"q-bio.NC","authors_text":"Brenda McCowan, Ramon Ferrer-i-Cancho","submitted_at":"2012-05-02T04:49:19Z","abstract_excerpt":"Long-range correlations are found in symbolic sequences from human language, music and DNA. Determining the span of correlations in dolphin whistle sequences is crucial for shedding light on their communicative complexity. Dolphin whistles share various statistical properties with human words, i.e. Zipf's law for word frequencies (namely that the probability of the $i$th most frequent word of a text is about $i^{-\\alpha}$) and a parallel of the tendency of more frequent words to have more meanings. The finding of Zipf's law for word frequencies in dolphin whistles has been the topic of an inte"},"claims":{"count":0,"items":[],"snapshot_sha256":"258153158e38e3291e3d48162225fcdb2d5a3ed65a07baac614ab91432fd4f57"},"source":{"id":"1205.0321","kind":"arxiv","version":2},"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"},"aliases":[{"alias_kind":"arxiv","alias_value":"1205.0321","created_at":"2026-05-18T02:32:22.787734+00:00"},{"alias_kind":"arxiv_version","alias_value":"1205.0321v2","created_at":"2026-05-18T02:32:22.787734+00:00"},{"alias_kind":"doi","alias_value":"10.48550/arxiv.1205.0321","created_at":"2026-05-18T02:32:22.787734+00:00"},{"alias_kind":"pith_short_12","alias_value":"Z2BN6BBIVM65","created_at":"2026-05-18T12:27:30.460161+00:00"},{"alias_kind":"pith_short_16","alias_value":"Z2BN6BBIVM65AHVK","created_at":"2026-05-18T12:27:30.460161+00:00"},{"alias_kind":"pith_short_8","alias_value":"Z2BN6BBI","created_at":"2026-05-18T12:27:30.460161+00:00"}],"events":[],"event_summary":{},"paper_claims":[],"inbound_citations":{"count":0,"internal_anchor_count":0,"sample":[]},"formal_canon":{"evidence_count":0,"sample":[],"anchors":[]},"links":{"html":"https://pith.science/pith/Z2BN6BBIVM65AHVKMADA6RXZNN","json":"https://pith.science/pith/Z2BN6BBIVM65AHVKMADA6RXZNN.json","graph_json":"https://pith.science/api/pith-number/Z2BN6BBIVM65AHVKMADA6RXZNN/graph.json","events_json":"https://pith.science/api/pith-number/Z2BN6BBIVM65AHVKMADA6RXZNN/events.json","paper":"https://pith.science/paper/Z2BN6BBI"},"agent_actions":{"view_html":"https://pith.science/pith/Z2BN6BBIVM65AHVKMADA6RXZNN","download_json":"https://pith.science/pith/Z2BN6BBIVM65AHVKMADA6RXZNN.json","view_paper":"https://pith.science/paper/Z2BN6BBI","resolve_alias":"https://pith.science/api/pith-number/resolve?arxiv=1205.0321&json=true","fetch_graph":"https://pith.science/api/pith-number/Z2BN6BBIVM65AHVKMADA6RXZNN/graph.json","fetch_events":"https://pith.science/api/pith-number/Z2BN6BBIVM65AHVKMADA6RXZNN/events.json","actions":{"anchor_timestamp":"https://pith.science/pith/Z2BN6BBIVM65AHVKMADA6RXZNN/action/timestamp_anchor","attest_storage":"https://pith.science/pith/Z2BN6BBIVM65AHVKMADA6RXZNN/action/storage_attestation","attest_author":"https://pith.science/pith/Z2BN6BBIVM65AHVKMADA6RXZNN/action/author_attestation","sign_citation":"https://pith.science/pith/Z2BN6BBIVM65AHVKMADA6RXZNN/action/citation_signature","submit_replication":"https://pith.science/pith/Z2BN6BBIVM65AHVKMADA6RXZNN/action/replication_record"}},"created_at":"2026-05-18T02:32:22.787734+00:00","updated_at":"2026-05-18T02:32:22.787734+00:00"}