Texas Music Educators Association Region 8 Middle School Treble Choir
{"copyright_id":"0xf54610952a32903bc3dd53e6cb0437a9ce6c521ee0f03188daa8918d2d690303","name":"Texas Music Educators Association Region 8 Middle School Treble Choir","registered_at":"2026-06-16T15:36:25Z","symbol":"NIM1096921","token_address":"0xcab40d42b4ee4152c686a722a763b30207712c6e","type":"artist","uuid":"49b29a58-f67f-4b99-a77c-164afc1da9c3"}
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 0xf54610952a32903bc3dd53e6cb0437a9ce6c521ee0f03188daa8918d2d690303. Chain 2 (Bitcoin): anchored in block 954065 (2026-06-17T08:10:43Z). Bridge: the canonical record inside this Bitcoin proof contains the same CopyrightID. Verify: download https://artists.proofprofile.net/proofs/artist/49b29a58-f67f-4b99-a77c-164afc1da9c3.json and https://artists.proofprofile.net/proofs/artist/49b29a58-f67f-4b99-a77c-164afc1da9c3.ots, run `ots verify -f record.json proof.ots` (https://opentimestamps.org).
Texas Music Educators Association Region 8 Middle School Choirs 2023 (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 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 0x37def5204ebf9492c65b1ba30e74dad2442c50bbb94e00abb16be9b1d9ed170d. Chain 2 (Bitcoin): anchored in block 960360 (2026-07-31T06:42:11Z), 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/GBRKQ2334627.