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 0x9c7bd130172ee2c168f60bfd165f9c45e033a5d5c383c8292f98952e407bdeef. Chain 2 (Bitcoin): anchored in block 954784 (2026-06-22T02:53:59Z). Bridge: the canonical record inside this Bitcoin proof contains the same CopyrightID. Verify: download https://artists.proofprofile.net/proofs/artist/f05cb208-81f7-41e1-abe5-c9811e3a0965.json and https://artists.proofprofile.net/proofs/artist/f05cb208-81f7-41e1-abe5-c9811e3a0965.ots, run `ots verify -f record.json proof.ots` (https://opentimestamps.org).
The House Of The Rising Sun (The Voice Performance)
The House Of The Rising Sun - 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 → 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 0xca2c4b4399541aa80e05d7da5adfa9ec264e954dc94f91f788063006a7df4025. Chain 2 (Bitcoin): anchored in block 956396 (2026-07-02T21:01:51Z), 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/USUM71200893.
Somewhere Only We Know (The Voice Performance)
Somewhere Only We Know - The Voice Performance
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xf00033f1f8ac4b79fe0c13bd3576cdecf5bcdac1a7ef28a6e467142a5f4c8459. Chain 2 (Bitcoin): anchored in block 959043 (2026-07-21T21:05:27Z), 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/USUM71204339.
When You Were Young (The Voice Performance)
You Know I'm No Good (The Voice Performance)
You Know I’m No Good - The Voice Performance
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x342e5c7cefa4303079dee1714b5d7a590c8c50d5058b8b922ad7a104699df2f4. Chain 2 (Bitcoin): anchored in block 959087 (2026-07-22T03:47:05Z), 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/USUM71202624.