The Christian McBride Big Band is a 17-piece big band whose debut album The Good Feeling received the Grammy Award for Best Large Jazz Ensemble Album in 2012. For the 2026 Grammy Awards, they received
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 0x3c60dc171f416cb95c52d2e4b769ac3d69a7889831beff5ed7cd4c14d9706099. Chain 2 (Bitcoin): anchored in block 953667 (2026-06-14T17:49:01Z). Bridge: the canonical record inside this Bitcoin proof contains the same CopyrightID. Verify: download https://artists.proofprofile.net/proofs/artist/565faf38-8af4-45db-8b9a-f43d9a0ea2e0.json and https://artists.proofprofile.net/proofs/artist/565faf38-8af4-45db-8b9a-f43d9a0ea2e0.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
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x6a1132ecdd225530a8d8a823287b158368c8b947f4168a8c5b6c6e232bb93cb7. Chain 2 (Bitcoin): anchored in block 958263 (2026-07-16T08:19:47Z), 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/USMAR1105303.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x019bbe74c22f3de5c66d29fdca3252474c0568135a248d934656ac9bf478ada4. Chain 2 (Bitcoin): anchored in block 958238 (2026-07-16T07:25:09Z), 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/USMAR1105306.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xf56c21b328e176038ef3c6294c0e33aaaf8060e71108e5826b500403e747e23e. Chain 2 (Bitcoin): anchored in block 958816 (2026-07-20T03:51:05Z), 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/USMAR1711507.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x31082a1ce373421227d4fa3581bfdbef197b192c0590527a5dbe3bc8ea740295. Chain 2 (Bitcoin): anchored in block 958316 (2026-07-16T21:58:28Z), 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/USMAR2015201.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x63adf495ba393401e098696896eea8c283f2dc639e0751e8e2550417fda6bc8c. Chain 2 (Bitcoin): anchored in block 958846 (2026-07-20T10:40:35Z), 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/USMAR2015204.