Manuel Valera (born October 17, 1980) is a Cuban pianist and composer. Biography Valera was born in Havana, Cuba. He graduated from South Broward High School, Hollywood, Florida. Since 2000, he has l
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
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xd1a97403b6ea61b8d254735097c3a0c2f7b9c5aaf62754be27d6f2cafad39462. Chain 2 (Bitcoin): anchored in block 953742 (2026-06-15T04:47:56Z). Bridge: the canonical record inside this Bitcoin proof contains the same CopyrightID. Verify: download https://artists.proofprofile.net/proofs/artist/8cbd035c-3868-46df-8c78-7b666d12d1e4.json and https://artists.proofprofile.net/proofs/artist/8cbd035c-3868-46df-8c78-7b666d12d1e4.ots, run `ots verify -f record.json proof.ots` (https://opentimestamps.org).
Forma Nueva with John Patitucci, Bill Stewart, "El Negro" Hndz
Melancolía (Feat. Seamus Blake, Ben Street & Antonio Sanchez.)
Vientos feat. Joel Frahm, James Genus & Ernesto Simpson (Reissued)
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
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x382666955160d2b399892ed79fd62869a748a7d07fe9befe21345cc14757721c. Chain 2 (Bitcoin): anchored in block 958303 (2026-07-16T16:39:24Z), 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/QMWJG1200001.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x2b7293a9b436b53f201a114505b5cc12ef96cdd32df787aaa197ac4c345a8134. Chain 2 (Bitcoin): anchored in block 958286 (2026-07-16T12:43:37Z), 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/QMWJG1300001.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x5f2860fbe18572071a97209daa74f87d24eb8b046d9fcc42bb88eb434de2db7a. Chain 2 (Bitcoin): anchored in block 956634 (2026-07-04T10:04:33Z), 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/USKO12100473.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xa5011d71dd72ad3e7e03dcdbd795bc596b82d23eff7faaa2300b3e8581c8530b. Chain 2 (Bitcoin): anchored in block 956822 (2026-07-05T18:48:28Z), 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/QMWJG2500003.