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 0x0fa86ef831fb34e77bc05163acad71c3fc214ba2fcba7ea58f8e0317c7400cbc. Chain 2 (Bitcoin): anchored in block 953909 (2026-06-16T07:53:13Z). Bridge: the canonical record inside this Bitcoin proof contains the same CopyrightID. Verify: download https://artists.proofprofile.net/proofs/artist/0329ce8f-6334-41c8-afb6-434e5f805b04.json and https://artists.proofprofile.net/proofs/artist/0329ce8f-6334-41c8-afb6-434e5f805b04.ots, run `ots verify -f record.json proof.ots` (https://opentimestamps.org).
Texas Music Educators Association 2010 Clinic and Convention - All State 5A Symphonic Band
Texas Music Educators Association 2011 Clinic and Convention - Texas All-State 5A Symphonic Band
2012 Texas Music Educators Association (TMEA): All-State 5A Symphonic Band
2013 Texas Music Educators Association (TMEA): All-State 5A Symphonic Band
2009 Texas Music Educators Association (TMEA): All-State 5A Symphonic Band
2008 Texas Music Educators Association (TMEA): All-State 5A Symphonic Band
2014 Texas Music Educators Association (TMEA): All-State 5A Symphonic Band
2014 Texas Music Educators Association (TMEA): All-State 5A Symphonic Band [Live]
2015 Texas Music Educators Association (TMEA): All-State 5A Symphonic Band [Live]
2016 Texas Music Educators Association (TMEA): All-State 5A Symphonic Band (Live)
2017 Texas Music Educators Association (TMEA): TMEA All-State 5A Symphonic Band [Live]
2019 Texas Music Educators Association: All-State 5A Symphonic Band
2020 Texas Music Educator's Association (TMEA): All-State 5A Symphonic Band [Live]
2022 Texas Music Educators Association: Texas All-State 5A Symphonic Band (Live)
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 0xc60e8904ce597c058d9788bfc469d5b3611ca7a22f4e50eab6aeb86e250e5965. Chain 2 (Bitcoin): anchored in block 956728 (2026-07-05T01:43:49Z), 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/USVZX2209003.
2023 Texas Music Educators Association: Texas All-State 5A Symphonic Band (Live)