Leanne and Naara is an indie pop/singer-songwriter duo based in Metro Manila, Philippines. The duo consists of Leanne Mamonong and Naara Acueza. Although they began their musical careers while in the
1. Compute SHA-256 of OTSCanonicalRecord value → must equal OTSHash 2. Open OTSProofURL → extract Bitcoin block number → must equal OTSBitcoinBlock 3. GET OTSBitcoinBlockVerifyURL → returns the Bitcoin block hash at height OTSBitcoinBlock; GET https://blockstream.info/api/block/{that hash} → its timestamp must match OTSTimestamp 4. Read CopyrightID inside OTSCanonicalRecord → must equal the CopyrightID above 5. GET OTSVerificationAPI → pre-computed 6-check result from server 6. If all match: this entity was registered on CopyrightChains at OTSTimestamp, independently verifiable on Bitcoin Note: an OTS proof may carry multiple Bitcoin attestations; OTSBitcoinBlock is the earliest confirmed one — a later attestation inside the proof corroborates it and is not a mismatch
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x650418667e150daa0ce271f7fcfb483a2c88c45e310a43b3a40bc48f59e85de1. Chain 2 (Bitcoin): anchored in block 953407 (2026-06-12T19:24:56Z). Bridge: the canonical record inside this Bitcoin proof contains the same CopyrightID. Verify: download https://artists.proofprofile.net/proofs/artist/a07d8c01-766f-42e1-87a6-f77297011ffd.json and https://artists.proofprofile.net/proofs/artist/a07d8c01-766f-42e1-87a6-f77297011ffd.ots, run `ots verify -f record.json proof.ots` (https://opentimestamps.org).
Replacing Chef Chico (Original Soundtrack)
1. Confirm isrcCode identifies the recording in the pre-2022 source corpus and cc-db-prod record 2. GET OTSVerificationAPI → server-side canonical-record, hash, and attestation checks must pass 3. GET OTSBitcoinBlockVerifyURL → returns the Bitcoin block hash at height OTSBitcoinBlock; GET https://blockstream.info/api/block/{that hash} → its timestamp must match OTSTimestamp 4. Confirm CopyrightID is the CopyrightChains transaction hash 5. If all match: the cc-db-prod record is independently anchored on Bitcoin at OTSTimestamp Note: an OTS proof may carry multiple Bitcoin attestations; OTSBitcoinBlock is the earliest confirmed one — a later attestation inside the proof corroborates it and is not a mismatch
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x03a7165a529fdcec5aa0db1607758e47f12d9e99fb9eaad8d57e4f66cc15c375. Chain 2 (Bitcoin): anchored in block 953520 (2026-06-13T13:32:09Z), registered by our registry partner. The server verifies the private canonical record against OTSHash without exposing internal provider keys. Confirm the public ISRC, CopyrightID, and Bitcoin evidence via https://artists.proofprofile.net/api/v1/bot/ots/verify/track/PHW012300273.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x3cb9be92f722c32e3ead17f373d626f2f31496981f6d348b0ef74347a9c1460b. Chain 2 (Bitcoin): anchored in block 953528 (2026-06-13T15:41:10Z), registered by our registry partner. The server verifies the private canonical record against OTSHash without exposing internal provider keys. Confirm the public ISRC, CopyrightID, and Bitcoin evidence via https://artists.proofprofile.net/api/v1/bot/ots/verify/track/PHW012000107.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xe5f88e4509d52bf91ab0b84e5653f77662d8beb0428a3a5a9f8e3231383e39ea. Chain 2 (Bitcoin): anchored in block 953520 (2026-06-13T13:32:09Z), registered by our registry partner. The server verifies the private canonical record against OTSHash without exposing internal provider keys. Confirm the public ISRC, CopyrightID, and Bitcoin evidence via https://artists.proofprofile.net/api/v1/bot/ots/verify/track/PHW012200027.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x8b10adee826910fb8620838bc06b04ce4ee69c4101e50e5c20a0bab300cfe11f. Chain 2 (Bitcoin): anchored in block 953520 (2026-06-13T13:32:09Z), registered by our registry partner. The server verifies the private canonical record against OTSHash without exposing internal provider keys. Confirm the public ISRC, CopyrightID, and Bitcoin evidence via https://artists.proofprofile.net/api/v1/bot/ots/verify/track/PHW012000349.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x03a7165a529fdcec5aa0db1607758e47f12d9e99fb9eaad8d57e4f66cc15c375. Chain 2 (Bitcoin): anchored in block 953515 (2026-06-13T12:53:06Z), registered by our registry partner. The server verifies the private canonical record against OTSHash without exposing internal provider keys. Confirm the public ISRC, CopyrightID, and Bitcoin evidence via https://artists.proofprofile.net/api/v1/bot/ots/verify/track/PHW012300273.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xecd1135fbafb67f6f487173e3cd9ef0bfe2f8054f106c0728113f0f0cd801bdc. Chain 2 (Bitcoin): anchored in block 953520 (2026-06-13T13:32:09Z), registered by our registry partner. The server verifies the private canonical record against OTSHash without exposing internal provider keys. Confirm the public ISRC, CopyrightID, and Bitcoin evidence via https://artists.proofprofile.net/api/v1/bot/ots/verify/track/PHW012100175.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x473d65540738d959a5b104286679df696d22ef59e93dc6e14243bab736b255e7. Chain 2 (Bitcoin): anchored in block 954130 (2026-06-17T19:07:14Z), registered by our registry partner. The server verifies the private canonical record against OTSHash without exposing internal provider keys. Confirm the public ISRC, CopyrightID, and Bitcoin evidence via https://artists.proofprofile.net/api/v1/bot/ots/verify/track/PHW012000310.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x3cb9be92f722c32e3ead17f373d626f2f31496981f6d348b0ef74347a9c1460b. Chain 2 (Bitcoin): anchored in block 953515 (2026-06-13T12:53:06Z), registered by our registry partner. The server verifies the private canonical record against OTSHash without exposing internal provider keys. Confirm the public ISRC, CopyrightID, and Bitcoin evidence via https://artists.proofprofile.net/api/v1/bot/ots/verify/track/PHW012000107.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x5d1558af513ec227c16b1f88635c627bba24b6779aae8b1ff72976962e9ea235. Chain 2 (Bitcoin): anchored in block 953520 (2026-06-13T13:32:09Z), registered by our registry partner. The server verifies the private canonical record against OTSHash without exposing internal provider keys. Confirm the public ISRC, CopyrightID, and Bitcoin evidence via https://artists.proofprofile.net/api/v1/bot/ots/verify/track/PHW011900520.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x3fb130b6c2d9f451d28e82cf62d705502e9852e84673ba01662945fdd2923deb. Chain 2 (Bitcoin): anchored in block 953520 (2026-06-13T13:32:09Z), registered by our registry partner. The server verifies the private canonical record against OTSHash without exposing internal provider keys. Confirm the public ISRC, CopyrightID, and Bitcoin evidence via https://artists.proofprofile.net/api/v1/bot/ots/verify/track/PHW011900499.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x31c808a6ab08a3f48f1991a1137b8693dc71575594e42452b22d9b127fccfba7. Chain 2 (Bitcoin): anchored in block 953513 (2026-06-13T12:47:07Z), registered by our registry partner. The server verifies the private canonical record against OTSHash without exposing internal provider keys. Confirm the public ISRC, CopyrightID, and Bitcoin evidence via https://artists.proofprofile.net/api/v1/bot/ots/verify/track/QMEZE1942772.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x6805e780a28f16e1156dd27a25c3e649a3643d2b0b20f7fa41414092355e9a84. Chain 2 (Bitcoin): anchored in block 953520 (2026-06-13T13:32:09Z), registered by our registry partner. The server verifies the private canonical record against OTSHash without exposing internal provider keys. Confirm the public ISRC, CopyrightID, and Bitcoin evidence via https://artists.proofprofile.net/api/v1/bot/ots/verify/track/PHW011800706.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xdb064715acbdda2d8d6f48b9f66f9bc39b6fd0bac64ba6955e38857d1f8220d4. Chain 2 (Bitcoin): anchored in block 953513 (2026-06-13T12:47:07Z), registered by our registry partner. The server verifies the private canonical record against OTSHash without exposing internal provider keys. Confirm the public ISRC, CopyrightID, and Bitcoin evidence via https://artists.proofprofile.net/api/v1/bot/ots/verify/track/PHW011800645.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xe2d20b170b8642715e1a4cf7ae7d939ab90065d3fb42c5e55ffa6c47db4cd4da. Chain 2 (Bitcoin): anchored in block 953515 (2026-06-13T12:53:06Z), registered by our registry partner. The server verifies the private canonical record against OTSHash without exposing internal provider keys. Confirm the public ISRC, CopyrightID, and Bitcoin evidence via https://artists.proofprofile.net/api/v1/bot/ots/verify/track/PHW011800106.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x3e3e2baf4f458cbd0e7992e20c53f6814534fbee7190fd792d8cae80eac7ad25. Chain 2 (Bitcoin): anchored in block 956302 (2026-07-02T03:30:09Z), registered by our registry partner. The server verifies the private canonical record against OTSHash without exposing internal provider keys. Confirm the public ISRC, CopyrightID, and Bitcoin evidence via https://artists.proofprofile.net/api/v1/bot/ots/verify/track/PHW011700137.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x868741ad66ba826f8d952d694908d0b94a5866ef06099757fdc201ef1e3008a4. Chain 2 (Bitcoin): anchored in block 953513 (2026-06-13T12:47:07Z), registered by our registry partner. The server verifies the private canonical record against OTSHash without exposing internal provider keys. Confirm the public ISRC, CopyrightID, and Bitcoin evidence via https://artists.proofprofile.net/api/v1/bot/ots/verify/track/PHW011600367.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xebabd16aeacab7c573de45a620bdda1c7120cbee8bb84b121eda26e344ef8fcb. Chain 2 (Bitcoin): anchored in block 953513 (2026-06-13T12:47:07Z), registered by our registry partner. The server verifies the private canonical record against OTSHash without exposing internal provider keys. Confirm the public ISRC, CopyrightID, and Bitcoin evidence via https://artists.proofprofile.net/api/v1/bot/ots/verify/track/PHW011600361.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xe36bccc0e8bcca909ff80b680651219859d26bf74c1ae7b349e3ba190bc1c789. Chain 2 (Bitcoin): anchored in block 953513 (2026-06-13T12:47:07Z), registered by our registry partner. The server verifies the private canonical record against OTSHash without exposing internal provider keys. Confirm the public ISRC, CopyrightID, and Bitcoin evidence via https://artists.proofprofile.net/api/v1/bot/ots/verify/track/PHW011600229.