{"bundle_type":"pith_open_graph_bundle","bundle_version":"1.0","pith_number":"pith:2018:HRWRDTDPY25JSNPT6SZPJWSODR","short_pith_number":"pith:HRWRDTDP","canonical_record":{"source":{"id":"1802.02610","kind":"arxiv","version":1},"metadata":{"license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"q-bio.OT","submitted_at":"2018-02-07T19:34:04Z","cross_cats_sorted":["physics.bio-ph","physics.data-an"],"title_canon_sha256":"a78d77c67d2646970d68bde7ffd0c5fa6e9a2e4c5dab67c7a77b6bd1a36d02da","abstract_canon_sha256":"5b5ac7b2556873a12e1e7340ef48cc9437b29f817bd3850887b9370576652db8"},"schema_version":"1.0"},"canonical_sha256":"3c6d11cc6fc6ba9935f3f4b2f4da4e1c52ff5a849d8f50d63ee0c5f17a74d616","source":{"kind":"arxiv","id":"1802.02610","version":1},"source_aliases":[{"alias_kind":"arxiv","alias_value":"1802.02610","created_at":"2026-05-18T00:24:03Z"},{"alias_kind":"arxiv_version","alias_value":"1802.02610v1","created_at":"2026-05-18T00:24:03Z"},{"alias_kind":"doi","alias_value":"10.48550/arxiv.1802.02610","created_at":"2026-05-18T00:24:03Z"},{"alias_kind":"pith_short_12","alias_value":"HRWRDTDPY25J","created_at":"2026-05-18T12:32:28Z"},{"alias_kind":"pith_short_16","alias_value":"HRWRDTDPY25JSNPT","created_at":"2026-05-18T12:32:28Z"},{"alias_kind":"pith_short_8","alias_value":"HRWRDTDP","created_at":"2026-05-18T12:32:28Z"}],"events":[{"event_type":"record_created","subject_pith_number":"pith:2018:HRWRDTDPY25JSNPT6SZPJWSODR","target":"record","payload":{"canonical_record":{"source":{"id":"1802.02610","kind":"arxiv","version":1},"metadata":{"license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"q-bio.OT","submitted_at":"2018-02-07T19:34:04Z","cross_cats_sorted":["physics.bio-ph","physics.data-an"],"title_canon_sha256":"a78d77c67d2646970d68bde7ffd0c5fa6e9a2e4c5dab67c7a77b6bd1a36d02da","abstract_canon_sha256":"5b5ac7b2556873a12e1e7340ef48cc9437b29f817bd3850887b9370576652db8"},"schema_version":"1.0"},"canonical_sha256":"3c6d11cc6fc6ba9935f3f4b2f4da4e1c52ff5a849d8f50d63ee0c5f17a74d616","receipt":{"kind":"pith_receipt","key_id":"pith-v1-2026-05","algorithm":"ed25519","signed_at":"2026-05-18T00:24:03.555326Z","signature_b64":"hJVzrvTpVbrschOgh9XMmKYPKNNLPNPbLCtGDgyiXun0mYxXYBZEwWhCclfNJuguzF5smrDSDvrQAC6gRW/zDA==","signed_message":"canonical_sha256_bytes","builder_version":"pith-number-builder-2026-05-17-v1","receipt_version":"0.3","canonical_sha256":"3c6d11cc6fc6ba9935f3f4b2f4da4e1c52ff5a849d8f50d63ee0c5f17a74d616","last_reissued_at":"2026-05-18T00:24:03.554865Z","signature_status":"signed_v1","first_computed_at":"2026-05-18T00:24:03.554865Z","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54"},"source_kind":"arxiv","source_id":"1802.02610","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":"2026-05-18T00:24:03Z","supersedes":[],"prev_event":null,"signature":{"signature_status":"signed_v1","algorithm":"ed25519","key_id":"pith-v1-2026-05","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54","signature_b64":"cwX4FmdYoh3ftdOXAmrfTcEVi320NZLXeL+DkfIH/4F9yH0leIcMEKHgOaMpa1xF5I3wyT2EhfqD4nSSwwt8Aw==","signed_message":"open_graph_event_sha256_bytes","signed_at":"2026-06-24T08:12:26.584193Z"},"content_sha256":"c51527cbeae83eecdf3668df0c5e1d10bdd040b6796c4375cc3955fe92c24d9e","schema_version":"1.0","event_id":"sha256:c51527cbeae83eecdf3668df0c5e1d10bdd040b6796c4375cc3955fe92c24d9e"},{"event_type":"graph_snapshot","subject_pith_number":"pith:2018:HRWRDTDPY25JSNPT6SZPJWSODR","target":"graph","payload":{"graph_snapshot":{"paper":{"title":"Telling apart <I>Felidae</I> and <I>Ursidae</I> from the distribution of nucleotides in mitochondrial DNA","license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","headline":"","cross_cats":["physics.bio-ph","physics.data-an"],"primary_cat":"q-bio.OT","authors_text":"Andrij Rovenchak","submitted_at":"2018-02-07T19:34:04Z","abstract_excerpt":"Rank--frequency distributions of nucleotide sequences in mitochondrial DNA are defined in a way analogous to the linguistic approach, with the highest-frequent nucleobase serving as a whitespace. For such sequences, entropy and mean length are calculated. These parameters are shown to discriminate the species of the <I>Felidae</I> (cats) and <I>Ursidae</I> (bears) families. From purely numerical values we are able to see in particular that giant pandas are bears while koalas are not. The observed linear relation between the parameters is explained using a simple probabilistic model. The approa"},"claims":{"count":0,"items":[],"snapshot_sha256":"258153158e38e3291e3d48162225fcdb2d5a3ed65a07baac614ab91432fd4f57"},"source":{"id":"1802.02610","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":"2026-05-18T00:24:03Z","supersedes":[],"prev_event":null,"signature":{"signature_status":"signed_v1","algorithm":"ed25519","key_id":"pith-v1-2026-05","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54","signature_b64":"2YETt4zrgwUkVqfF/pWGmdfYOg8oei2g7nE/iXK0rB/Au4YgFNjiDb99ic3AoZVW8W0+iu8QjYcXzkqRc1kkCQ==","signed_message":"open_graph_event_sha256_bytes","signed_at":"2026-06-24T08:12:26.584772Z"},"content_sha256":"b3c71c6e044e68b9b97f0b13dd2ffaccef96f855df48a28e90057c28c7225358","schema_version":"1.0","event_id":"sha256:b3c71c6e044e68b9b97f0b13dd2ffaccef96f855df48a28e90057c28c7225358"}],"timestamp_proofs":[],"mirror_hints":[{"mirror_type":"https","name":"Pith Resolver","base_url":"https://pith.science","bundle_url":"https://pith.science/pith/HRWRDTDPY25JSNPT6SZPJWSODR/bundle.json","state_url":"https://pith.science/pith/HRWRDTDPY25JSNPT6SZPJWSODR/state.json","well_known_bundle_url":"https://pith.science/.well-known/pith/HRWRDTDPY25JSNPT6SZPJWSODR/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":"2026-06-24T08:12:26Z","links":{"resolver":"https://pith.science/pith/HRWRDTDPY25JSNPT6SZPJWSODR","bundle":"https://pith.science/pith/HRWRDTDPY25JSNPT6SZPJWSODR/bundle.json","state":"https://pith.science/pith/HRWRDTDPY25JSNPT6SZPJWSODR/state.json","well_known_bundle":"https://pith.science/.well-known/pith/HRWRDTDPY25JSNPT6SZPJWSODR/bundle.json"},"state":{"state_type":"pith_open_graph_state","state_version":"1.0","pith_number":"pith:2018:HRWRDTDPY25JSNPT6SZPJWSODR","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":"5b5ac7b2556873a12e1e7340ef48cc9437b29f817bd3850887b9370576652db8","cross_cats_sorted":["physics.bio-ph","physics.data-an"],"license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"q-bio.OT","submitted_at":"2018-02-07T19:34:04Z","title_canon_sha256":"a78d77c67d2646970d68bde7ffd0c5fa6e9a2e4c5dab67c7a77b6bd1a36d02da"},"schema_version":"1.0","source":{"id":"1802.02610","kind":"arxiv","version":1}},"source_aliases":[{"alias_kind":"arxiv","alias_value":"1802.02610","created_at":"2026-05-18T00:24:03Z"},{"alias_kind":"arxiv_version","alias_value":"1802.02610v1","created_at":"2026-05-18T00:24:03Z"},{"alias_kind":"doi","alias_value":"10.48550/arxiv.1802.02610","created_at":"2026-05-18T00:24:03Z"},{"alias_kind":"pith_short_12","alias_value":"HRWRDTDPY25J","created_at":"2026-05-18T12:32:28Z"},{"alias_kind":"pith_short_16","alias_value":"HRWRDTDPY25JSNPT","created_at":"2026-05-18T12:32:28Z"},{"alias_kind":"pith_short_8","alias_value":"HRWRDTDP","created_at":"2026-05-18T12:32:28Z"}],"graph_snapshots":[{"event_id":"sha256:b3c71c6e044e68b9b97f0b13dd2ffaccef96f855df48a28e90057c28c7225358","target":"graph","created_at":"2026-05-18T00:24:03Z","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":"Rank--frequency distributions of nucleotide sequences in mitochondrial DNA are defined in a way analogous to the linguistic approach, with the highest-frequent nucleobase serving as a whitespace. For such sequences, entropy and mean length are calculated. These parameters are shown to discriminate the species of the <I>Felidae</I> (cats) and <I>Ursidae</I> (bears) families. From purely numerical values we are able to see in particular that giant pandas are bears while koalas are not. The observed linear relation between the parameters is explained using a simple probabilistic model. The approa","authors_text":"Andrij Rovenchak","cross_cats":["physics.bio-ph","physics.data-an"],"headline":"","license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"q-bio.OT","submitted_at":"2018-02-07T19:34:04Z","title":"Telling apart <I>Felidae</I> and <I>Ursidae</I> from the distribution of nucleotides in mitochondrial DNA"},"references":{"count":0,"internal_anchors":0,"resolved_work":0,"sample":[],"snapshot_sha256":"258153158e38e3291e3d48162225fcdb2d5a3ed65a07baac614ab91432fd4f57"},"source":{"id":"1802.02610","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:c51527cbeae83eecdf3668df0c5e1d10bdd040b6796c4375cc3955fe92c24d9e","target":"record","created_at":"2026-05-18T00:24:03Z","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":"5b5ac7b2556873a12e1e7340ef48cc9437b29f817bd3850887b9370576652db8","cross_cats_sorted":["physics.bio-ph","physics.data-an"],"license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"q-bio.OT","submitted_at":"2018-02-07T19:34:04Z","title_canon_sha256":"a78d77c67d2646970d68bde7ffd0c5fa6e9a2e4c5dab67c7a77b6bd1a36d02da"},"schema_version":"1.0","source":{"id":"1802.02610","kind":"arxiv","version":1}},"canonical_sha256":"3c6d11cc6fc6ba9935f3f4b2f4da4e1c52ff5a849d8f50d63ee0c5f17a74d616","receipt":{"algorithm":"ed25519","builder_version":"pith-number-builder-2026-05-17-v1","canonical_sha256":"3c6d11cc6fc6ba9935f3f4b2f4da4e1c52ff5a849d8f50d63ee0c5f17a74d616","first_computed_at":"2026-05-18T00:24:03.554865Z","key_id":"pith-v1-2026-05","kind":"pith_receipt","last_reissued_at":"2026-05-18T00:24:03.554865Z","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54","receipt_version":"0.3","signature_b64":"hJVzrvTpVbrschOgh9XMmKYPKNNLPNPbLCtGDgyiXun0mYxXYBZEwWhCclfNJuguzF5smrDSDvrQAC6gRW/zDA==","signature_status":"signed_v1","signed_at":"2026-05-18T00:24:03.555326Z","signed_message":"canonical_sha256_bytes"},"source_id":"1802.02610","source_kind":"arxiv","source_version":1}}},"equivocations":[],"invalid_events":[],"applied_event_ids":["sha256:c51527cbeae83eecdf3668df0c5e1d10bdd040b6796c4375cc3955fe92c24d9e","sha256:b3c71c6e044e68b9b97f0b13dd2ffaccef96f855df48a28e90057c28c7225358"],"state_sha256":"b2081e3451d5e1813da662eca5f0f205c460ae66a14d355cadd7b5d7dcbdb8a5"},"bundle_signature":{"signature_status":"signed_v1","algorithm":"ed25519","key_id":"pith-v1-2026-05","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54","signature_b64":"UMxDRdivMDStK0WqbJIR9QyfVNhPF9yvCUxooNrVXy542KRj0VFn8a52/ptJ966n0byGYdu0nsh//Hp+FEevBg==","signed_message":"bundle_sha256_bytes","signed_at":"2026-06-24T08:12:26.587436Z","bundle_sha256":"e71a21dbcbbf670c20c5c0e986e1372fd4e57f295709dbb067feabb96f0dfada"}}