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 0x25d5ae6a4474fa844e46bc565780e8649a5b04455832cb07a6dd7db939f4fb89. 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/4b69ef9b-b0f5-4803-880b-18c1ac3356fd.json and https://artists.proofprofile.net/proofs/artist/4b69ef9b-b0f5-4803-880b-18c1ac3356fd.ots, run `ots verify -f record.json proof.ots` (https://opentimestamps.org).
Not A Bad Thing - Justin Timberlake (Cover by Justin Bryte)
Birthday - Katy Perry (Cover by Justin Bryte)
Justin Bryte - Live Sessions From ET Studios Vol. I
Amnesia - 5 Seconds of Summer (Cover By Justin Bryte)
My Heart Is Open - Maroon 5 (Cover by Justin Bryte, Macy Kate, Jillian Jensen & Alex Preston)
Style - Taylor Swift (Cover by Justin Bryte)
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 0x1d42171e2d68769ef6470ad08a3973aaaf0b7eefc4627c151ad60969c5be2835. Chain 2 (Bitcoin): anchored in block 958905 (2026-07-20T18:33:57Z), 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/USE830942762.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x3e47166fd1f26d577fc5828ff83c6d83d47d2c39ef2ffb5660aee28982c43c26. Chain 2 (Bitcoin): anchored in block 958612 (2026-07-18T21:29:37Z), 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/USE830967679.