Son Boricua is a Latin dance music orchestra based in New York City, founded by Jose Mangual Junior. Lead singer was Jimmy Sabater until his death in 2012. Their debut album was released in 1998. 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 0xa175a7f9ecca361e7ed1c6020f357d10d4b853faf79dc9a1a1b91d99db630f3c. 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/058a04df-b2bf-4e74-afc0-1ce832d227a3.json and https://artists.proofprofile.net/proofs/artist/058a04df-b2bf-4e74-afc0-1ce832d227a3.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 0x162555a3cc2835279cab348cf19eaf5989e4d22cc065b31b950a1cc9c5b6ab65. Chain 2 (Bitcoin): anchored in block 956856 (2026-07-06T01:25:57Z), 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/US78T0507813.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xb7017fef5244a09929b9a83ce0619b4dcab38f8708ba288c376888021b69595d. 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/US78T0507905.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x6d663756b5698474fd78edd809cb82900d68013d4fd095f2b44f56c3ca2ab231. Chain 2 (Bitcoin): anchored in block 958631 (2026-07-19T00:50:09Z), 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/US78T0507906.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x09f4ef9e3701bdea6d16aada2e92f08c5f110dc82472d591c7f4f4e6c2bc7d5a. Chain 2 (Bitcoin): anchored in block 956772 (2026-07-05T10:01:46Z), 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/US78T0507820.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x3d8ce993aeffc4496a14b9bea06612c6b33baaf12c6532db7517076eeeda2997. Chain 2 (Bitcoin): anchored in block 958140 (2026-07-15T10:05:23Z), 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/US78T0507823.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x47e576bc9d9ef730ab190486f332aa88eb854bbf299be2179b3f6621bbe4554b. Chain 2 (Bitcoin): anchored in block 958428 (2026-07-17T15:15:14Z), 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/US78T0507825.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x630f12fcea73f34dd91cc5fa6335c7867abf46e1da2388ca349bea10554cb88a. Chain 2 (Bitcoin): anchored in block 958600 (2026-07-18T19:24:05Z), 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/US78T0507828.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xc61c6f3d5ba12e7038d0ea0b40c5d4a532b084eedc2506450b05df39313b5f01. Chain 2 (Bitcoin): anchored in block 958838 (2026-07-20T07:01:21Z), 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/US78T0507890.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x2a0b140d64bcab630bf4673d02df590a5328575da077ef24ed44868404eca94b. Chain 2 (Bitcoin): anchored in block 956578 (2026-07-04T02:23:20Z), 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/US78T0507894.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xcad6a41445574f7c6c2b56a5a2deef16ed1b3e6ff443c5fd27276cfe1d9965cd. Chain 2 (Bitcoin): anchored in block 957888 (2026-07-13T17:43:59Z), 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/US78T0507895.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xaf18da681846b6c796183c4898e38b83ac8d59879ca71e0b66acc7451db5535f. Chain 2 (Bitcoin): anchored in block 956576 (2026-07-04T02:06:47Z), 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/US78T0507897.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x01aa46d7105e879caf31830ee498b2b48936029dbf555e1cd79ec2af55823c2a. Chain 2 (Bitcoin): anchored in block 959043 (2026-07-21T20:35:04Z), 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/US78T0507899.