{"bundle_type":"pith_open_graph_bundle","bundle_version":"1.0","pith_number":"pith:2018:LGVZO6DVXPLCX5F3P35QWCD5G6","short_pith_number":"pith:LGVZO6DV","canonical_record":{"source":{"id":"1802.10162","kind":"arxiv","version":1},"metadata":{"license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"cs.SD","submitted_at":"2018-02-27T21:03:37Z","cross_cats_sorted":["eess.AS"],"title_canon_sha256":"a837fdb09d42718d53f127eb01a4458e942362833172ca9b4d59df24dbbcb930","abstract_canon_sha256":"274d27afa4814fed88fffe70faa2a731da5198591f278e9923b2c08371984663"},"schema_version":"1.0"},"canonical_sha256":"59ab977875bbd62bf4bb7efb0b087d3785872daecbc371994c591e712555f502","source":{"kind":"arxiv","id":"1802.10162","version":1},"source_aliases":[{"alias_kind":"arxiv","alias_value":"1802.10162","created_at":"2026-05-18T00:22:17Z"},{"alias_kind":"arxiv_version","alias_value":"1802.10162v1","created_at":"2026-05-18T00:22:17Z"},{"alias_kind":"doi","alias_value":"10.48550/arxiv.1802.10162","created_at":"2026-05-18T00:22:17Z"},{"alias_kind":"pith_short_12","alias_value":"LGVZO6DVXPLC","created_at":"2026-05-18T12:32:37Z"},{"alias_kind":"pith_short_16","alias_value":"LGVZO6DVXPLCX5F3","created_at":"2026-05-18T12:32:37Z"},{"alias_kind":"pith_short_8","alias_value":"LGVZO6DV","created_at":"2026-05-18T12:32:37Z"}],"events":[{"event_type":"record_created","subject_pith_number":"pith:2018:LGVZO6DVXPLCX5F3P35QWCD5G6","target":"record","payload":{"canonical_record":{"source":{"id":"1802.10162","kind":"arxiv","version":1},"metadata":{"license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"cs.SD","submitted_at":"2018-02-27T21:03:37Z","cross_cats_sorted":["eess.AS"],"title_canon_sha256":"a837fdb09d42718d53f127eb01a4458e942362833172ca9b4d59df24dbbcb930","abstract_canon_sha256":"274d27afa4814fed88fffe70faa2a731da5198591f278e9923b2c08371984663"},"schema_version":"1.0"},"canonical_sha256":"59ab977875bbd62bf4bb7efb0b087d3785872daecbc371994c591e712555f502","receipt":{"kind":"pith_receipt","key_id":"pith-v1-2026-05","algorithm":"ed25519","signed_at":"2026-05-18T00:22:17.960503Z","signature_b64":"IJdgkeGRY7w158rF1LShTAAk17NvpSWPmGhFJYMb8ZSyGq9nvbDA1tsjDRcmihhlmBx39ZbrtYCqC9LU90P9Ag==","signed_message":"canonical_sha256_bytes","builder_version":"pith-number-builder-2026-05-17-v1","receipt_version":"0.3","canonical_sha256":"59ab977875bbd62bf4bb7efb0b087d3785872daecbc371994c591e712555f502","last_reissued_at":"2026-05-18T00:22:17.959821Z","signature_status":"signed_v1","first_computed_at":"2026-05-18T00:22:17.959821Z","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54"},"source_kind":"arxiv","source_id":"1802.10162","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":"2026-05-18T00:22:17Z","supersedes":[],"prev_event":null,"signature":{"signature_status":"signed_v1","algorithm":"ed25519","key_id":"pith-v1-2026-05","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54","signature_b64":"IZdKR4fcjJCEc3psrCv9+/LGNPbicbwbLYfpL0NfHRQivAhF0QZTNairjkeYkwA0WzhyPBBKJ0LpDRozB5JaCg==","signed_message":"open_graph_event_sha256_bytes","signed_at":"2026-06-05T23:15:48.723207Z"},"content_sha256":"c34b4425dcba7941744765c2e4715e53e000b614be7d5418a3f870a1db85e7a0","schema_version":"1.0","event_id":"sha256:c34b4425dcba7941744765c2e4715e53e000b614be7d5418a3f870a1db85e7a0"},{"event_type":"graph_snapshot","subject_pith_number":"pith:2018:LGVZO6DVXPLCX5F3P35QWCD5G6","target":"graph","payload":{"graph_snapshot":{"paper":{"title":"Interplay between musical practices and tuning in the marimba de chonta music","license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","headline":"","cross_cats":["eess.AS"],"primary_cat":"cs.SD","authors_text":"Federico Demmer, Jorge Useche, Rafael Hurtado","submitted_at":"2018-02-27T21:03:37Z","abstract_excerpt":"In the Pacific Coast of Colombia there is a type of marimba called marimba de chonta, which provides the melodic and harmonic contour for traditional music with characteristic chants and dances. The tunings of this marimba are based on the voice of female singers and allows musical practices, as a transposition that preserves relative distances between bars. Here we show that traditional tunings are consistent with isotonic scales, and that they have changed in the last three decades due to the influence of Western music. Specifically, low octaves have changed into just octaves. Additionally, "},"claims":{"count":0,"items":[],"snapshot_sha256":"258153158e38e3291e3d48162225fcdb2d5a3ed65a07baac614ab91432fd4f57"},"source":{"id":"1802.10162","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":"2026-05-18T00:22:17Z","supersedes":[],"prev_event":null,"signature":{"signature_status":"signed_v1","algorithm":"ed25519","key_id":"pith-v1-2026-05","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54","signature_b64":"rdIIZ6iyIa99mChI0gutWAn4RZK1KvRrjAsjjDzqmnROP7Jnjqz0E+8bvC1X4AB8gDBhvjAU0v+vBU1Kd5RxCQ==","signed_message":"open_graph_event_sha256_bytes","signed_at":"2026-06-05T23:15:48.723651Z"},"content_sha256":"eedc1b0ec166022f69437114b89cecf6b860984390f6d47dbe31dea4bad7341e","schema_version":"1.0","event_id":"sha256:eedc1b0ec166022f69437114b89cecf6b860984390f6d47dbe31dea4bad7341e"}],"timestamp_proofs":[],"mirror_hints":[{"mirror_type":"https","name":"Pith Resolver","base_url":"https://pith.science","bundle_url":"https://pith.science/pith/LGVZO6DVXPLCX5F3P35QWCD5G6/bundle.json","state_url":"https://pith.science/pith/LGVZO6DVXPLCX5F3P35QWCD5G6/state.json","well_known_bundle_url":"https://pith.science/.well-known/pith/LGVZO6DVXPLCX5F3P35QWCD5G6/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":"2026-06-05T23:15:48Z","links":{"resolver":"https://pith.science/pith/LGVZO6DVXPLCX5F3P35QWCD5G6","bundle":"https://pith.science/pith/LGVZO6DVXPLCX5F3P35QWCD5G6/bundle.json","state":"https://pith.science/pith/LGVZO6DVXPLCX5F3P35QWCD5G6/state.json","well_known_bundle":"https://pith.science/.well-known/pith/LGVZO6DVXPLCX5F3P35QWCD5G6/bundle.json"},"state":{"state_type":"pith_open_graph_state","state_version":"1.0","pith_number":"pith:2018:LGVZO6DVXPLCX5F3P35QWCD5G6","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":"274d27afa4814fed88fffe70faa2a731da5198591f278e9923b2c08371984663","cross_cats_sorted":["eess.AS"],"license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"cs.SD","submitted_at":"2018-02-27T21:03:37Z","title_canon_sha256":"a837fdb09d42718d53f127eb01a4458e942362833172ca9b4d59df24dbbcb930"},"schema_version":"1.0","source":{"id":"1802.10162","kind":"arxiv","version":1}},"source_aliases":[{"alias_kind":"arxiv","alias_value":"1802.10162","created_at":"2026-05-18T00:22:17Z"},{"alias_kind":"arxiv_version","alias_value":"1802.10162v1","created_at":"2026-05-18T00:22:17Z"},{"alias_kind":"doi","alias_value":"10.48550/arxiv.1802.10162","created_at":"2026-05-18T00:22:17Z"},{"alias_kind":"pith_short_12","alias_value":"LGVZO6DVXPLC","created_at":"2026-05-18T12:32:37Z"},{"alias_kind":"pith_short_16","alias_value":"LGVZO6DVXPLCX5F3","created_at":"2026-05-18T12:32:37Z"},{"alias_kind":"pith_short_8","alias_value":"LGVZO6DV","created_at":"2026-05-18T12:32:37Z"}],"graph_snapshots":[{"event_id":"sha256:eedc1b0ec166022f69437114b89cecf6b860984390f6d47dbe31dea4bad7341e","target":"graph","created_at":"2026-05-18T00:22:17Z","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":"In the Pacific Coast of Colombia there is a type of marimba called marimba de chonta, which provides the melodic and harmonic contour for traditional music with characteristic chants and dances. The tunings of this marimba are based on the voice of female singers and allows musical practices, as a transposition that preserves relative distances between bars. Here we show that traditional tunings are consistent with isotonic scales, and that they have changed in the last three decades due to the influence of Western music. Specifically, low octaves have changed into just octaves. Additionally, ","authors_text":"Federico Demmer, Jorge Useche, Rafael Hurtado","cross_cats":["eess.AS"],"headline":"","license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"cs.SD","submitted_at":"2018-02-27T21:03:37Z","title":"Interplay between musical practices and tuning in the marimba de chonta music"},"references":{"count":0,"internal_anchors":0,"resolved_work":0,"sample":[],"snapshot_sha256":"258153158e38e3291e3d48162225fcdb2d5a3ed65a07baac614ab91432fd4f57"},"source":{"id":"1802.10162","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:c34b4425dcba7941744765c2e4715e53e000b614be7d5418a3f870a1db85e7a0","target":"record","created_at":"2026-05-18T00:22:17Z","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":"274d27afa4814fed88fffe70faa2a731da5198591f278e9923b2c08371984663","cross_cats_sorted":["eess.AS"],"license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"cs.SD","submitted_at":"2018-02-27T21:03:37Z","title_canon_sha256":"a837fdb09d42718d53f127eb01a4458e942362833172ca9b4d59df24dbbcb930"},"schema_version":"1.0","source":{"id":"1802.10162","kind":"arxiv","version":1}},"canonical_sha256":"59ab977875bbd62bf4bb7efb0b087d3785872daecbc371994c591e712555f502","receipt":{"algorithm":"ed25519","builder_version":"pith-number-builder-2026-05-17-v1","canonical_sha256":"59ab977875bbd62bf4bb7efb0b087d3785872daecbc371994c591e712555f502","first_computed_at":"2026-05-18T00:22:17.959821Z","key_id":"pith-v1-2026-05","kind":"pith_receipt","last_reissued_at":"2026-05-18T00:22:17.959821Z","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54","receipt_version":"0.3","signature_b64":"IJdgkeGRY7w158rF1LShTAAk17NvpSWPmGhFJYMb8ZSyGq9nvbDA1tsjDRcmihhlmBx39ZbrtYCqC9LU90P9Ag==","signature_status":"signed_v1","signed_at":"2026-05-18T00:22:17.960503Z","signed_message":"canonical_sha256_bytes"},"source_id":"1802.10162","source_kind":"arxiv","source_version":1}}},"equivocations":[],"invalid_events":[],"applied_event_ids":["sha256:c34b4425dcba7941744765c2e4715e53e000b614be7d5418a3f870a1db85e7a0","sha256:eedc1b0ec166022f69437114b89cecf6b860984390f6d47dbe31dea4bad7341e"],"state_sha256":"ff8b2a34ef37a936f4b72501e67499cd86e4509055a8ab16034ebd3c0c7f15ac"},"bundle_signature":{"signature_status":"signed_v1","algorithm":"ed25519","key_id":"pith-v1-2026-05","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54","signature_b64":"bmfFqtyHwtGsmWjJc3dJJ5NnrIN2EvL+WncfPSxVTVU4Jjefh4VzMF4v5U06xHHH/o7jPOQ7X7JX19eirCR1Cg==","signed_message":"bundle_sha256_bytes","signed_at":"2026-06-05T23:15:48.726191Z","bundle_sha256":"e9db4a563f69e0bf48d5b2e273c8184053683c0471f00ea65b60a0f7bfcff179"}}