1. Compute SHA-256 of OTSCanonicalRecord value → must equal OTSHash 2. Open OTSProofURL → extract Bitcoin block number → must equal OTSBitcoinBlock 3. GET OTSBitcoinBlockVerifyURL → block must exist at that height 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 0x8dab43e69f37c6945d64b3fa646c3ce6cdc80fedb35523362c2b35ecfe057d72. Chain 2 (Bitcoin): anchored in block 953626 (2026-06-14T11:41:45Z). Bridge: the canonical record inside this Bitcoin proof contains the same CopyrightID. Verify: download https://artists.proofprofile.net/proofs/artist/218a956e-9257-405c-b194-24e5ca1ccf74.json and https://artists.proofprofile.net/proofs/artist/218a956e-9257-405c-b194-24e5ca1ccf74.ots, run `ots verify -f record.json proof.ots` (https://opentimestamps.org).
Call Your Girlfriend (The Voice Performance)
Call Your Girlfriend - The Voice Performance
The Complete Season 4 Collection (The Voice Performance)
Raise Your Glass - The Voice Performance
Just Give Me A Reason - The Voice Performance
I Knew You Were Trouble - The Voice Performance
Somewhere Only We Know - The Voice Performance
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 → block OTSBitcoinBlock must exist at that height 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 0x702aafb39ceebd503d362ed31d9d611107d53d5364babd73d16b016e0236fba6. Chain 2 (Bitcoin): anchored in block 956857 (2026-07-06T01:26:17Z), 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/USUM71307022.
Somewhere Only We Know (The Voice Performance)
All the Colors (a Christmastime song) - Acoustic
Glitter & Doom (Original Motion Picture Soundtrack)
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x2cbf57211864c001ad12cd74a03074f761c744a6f63cbf2cc0a3a0fe642a4bf8. Chain 2 (Bitcoin): anchored in block 957120 (2026-07-08T03:22:41Z), 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/USB962444901.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x50044c5ed9d417f453885ce7a17a8bb8ca8849167457d307d1536f598f52a7a8. Chain 2 (Bitcoin): anchored in block 956894 (2026-07-06T07:53:57Z), 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/USB962444902.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x6848aa4d4d3225f3adbd1fe6be33dee190fcf2579cc7217afb91992a6fc73a9c. Chain 2 (Bitcoin): anchored in block 957120 (2026-07-08T03:22:41Z), 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/USB962444908.
Get Out the Map & Prince of Darkness (Reprise)
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xa07d302d7f213b577e81dd2304535f84c7eb8a4387e636c5256eb3c21a5b4d22. Chain 2 (Bitcoin): anchored in block 957118 (2026-07-08T03:20:19Z), 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/USB962444914.
Closer to Fine & Everything in Its Own Time
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xc096ac931de0dbda6706c5b27f9a886ccad44ce538d52ab51482de5a421ae969. Chain 2 (Bitcoin): anchored in block 957120 (2026-07-08T03:22:41Z), 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/USB962444916.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x0b20e54897990a09e28a6e78c64a50955cbf2151ee8602dcceccad482755bae2. Chain 2 (Bitcoin): anchored in block 957120 (2026-07-08T03:22:41Z), 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/USB962444917.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x7815260f95388d863049cdeb95a20ec8330710a98e556ec8f452c5feb0be1af6. Chain 2 (Bitcoin): anchored in block 957120 (2026-07-08T03:22:41Z), 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/USB962444918.