Los Pleneros de la Cresta is a Puerto Rican plena ensemble. History The group was founded in 2013 by Joseph Ocasio Rivera, Joshuan Ocasio Rivera, Jeyluix Ocasio Rivera, and Josué Román Figueroa, wh
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 0xacb3d1f6986a269515b5d0c4a8dff823ebbd3b014d4960f18800707769e23040. 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/14d49e2b-b703-40bc-a549-6f1ee83a10ea.json and https://artists.proofprofile.net/proofs/artist/14d49e2b-b703-40bc-a549-6f1ee83a10ea.ots, run `ots verify -f record.json proof.ots` (https://opentimestamps.org).
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 0x2ea55873dcbec538f1e2ba64ab961fcd3353d8894a7e61e6884246e66947d253. Chain 2 (Bitcoin): anchored in block 956375 (2026-07-02T16:51:38Z), 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/USCGJ1572370.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x424f3a725874c32c6a234d1d0122dfeaa00580f82f652f0174afffd03f53f5d8. Chain 2 (Bitcoin): anchored in block 956375 (2026-07-02T16:51:38Z), 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/USCGJ1572378.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xa7801640c7b9cb76b446df625cdc6a383c83ce3cb59f088e552935c8430a5e62. Chain 2 (Bitcoin): anchored in block 958404 (2026-07-17T11:34:58Z), 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/USCGJ1572379.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xd42d738814a6784cf383bfc10dc0f4958639213b98f0f8b9d51ab5d5e6892bcb. Chain 2 (Bitcoin): anchored in block 956375 (2026-07-02T16:51:38Z), 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/USL4Q2164160.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x9bcd05f5d7260e17553147c14ff95f407bebe404e73438a303df88406551bdcf. Chain 2 (Bitcoin): anchored in block 958340 (2026-07-17T00:53:26Z), 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/USL4Q2164166.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xecea2461ba3dd7bbe0c73460169d24f529068316c3f264f3a7c36029cc33c77c. 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/QZZ8A2488286.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x6b7b0d292af44f944b222844f8398a41889d7edbf74a7a59af731154e75cee08. 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/QZZ8A2488528.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x43c949224b1771528538d3b15a873a1a96e5985d653edcb1b9b254a250443a25. 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/QZZ8A2488532.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x1a55837ed741e83ff4faca680251799fcf5374a60a7d18c4cd25057f634cd540. 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/QZZ8A2488535.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x18ede8264bb2238ccbff76412c34e20b3ccde615752e30fe007a9db534102380. 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/QZZ8A2488539.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x753924ef2b9f8afbfa2d59874bb51121670eceaf9b237b14b47d3d6ddf64d625. 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/QZZ8A2488542.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x09c61c09aeb76a5b1c99ac48ecdbda223f6641e1e135e9d53da57dd8dc30b34e. 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/QZZ8A2488549.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x5dfad6fe865a774f595482f909ccf2def05859fdf0e1b5189258b2de7260b4f3. 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/QZZ8A2488552.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xb1991d15a88587d74b37052c817cf869b522e58ae2503c73547f549b65ddc6c0. 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/QZZ8A2488561.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x3d5b7e4fca3cea3045140949929961bba37a819a9584e109a66c7e33a1b9e474. 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/QZZ8A2488566.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x98c8693cff4c3763a68971d3df73ef57f0ee095d10f8635dc2e5c3c1a959433a. 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/QMFMF2447066.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xcbe17e4f4d24d3f67d2be7bf5e3fe38f76b3287c279a164c0aa56e985d4485e5. 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/USASN2220759.