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 0x0986717c11c3d723dbce698f06715d25dabe4777a562d682db91c0ebaeeb1e7e. Chain 2 (Bitcoin): anchored in block 953742 (2026-06-15T04:47:56Z). Bridge: the canonical record inside this Bitcoin proof contains the same CopyrightID. Verify: download https://artists.proofprofile.net/proofs/artist/7ae658fb-c4f3-4875-8187-3949edeb218d.json and https://artists.proofprofile.net/proofs/artist/7ae658fb-c4f3-4875-8187-3949edeb218d.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 0xaedd3bad3b8ddc25c14c46f9b1cc33efab8f209ac12354ef5db6ae4f301f9760. Chain 2 (Bitcoin): anchored in block 958350 (2026-07-17T03:59:32Z), 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/GBQRF0813801.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x86f38a68213cc0e17e1e441eb10246cf68a6f7ecb5d44ce9eb13df5a61af97d1. Chain 2 (Bitcoin): anchored in block 958163 (2026-07-15T16:17:26Z), 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/GBQRF0813802.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x32817efc1c05ccfddbdd4485a2bdd2a44eeb47e63233009f76853afe971bd8b1. Chain 2 (Bitcoin): anchored in block 956545 (2026-07-03T19:59:51Z), 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/GBQRF0814850.
The Soundtrack To Your Life: Golden Oldies
Careless Whisper: A Tribute to George Michael
Ultimate Karaoke: Total Eclipse of the Heart
Essential Karaoke Classics: Music from the X Factor Finalists
Ultimate Karaoke: Final Countdown: Absolute 80's
Essential Karaoke Classics: Wonderful Tonight
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xbe8416131e3bb998aaefb7d92a1c814b0cff38f6eb2c49f6ffafbb6444f3966e. Chain 2 (Bitcoin): anchored in block 958480 (2026-07-18T02:58:58Z), 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/GBQRF1204700.