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 0x5f1a51ac07b2399cf8e1bcb5c5b723a3e60befa885f869ad7ac62c2a2b08f095. Chain 2 (Bitcoin): anchored in block 953407 (2026-06-12T19:24:56Z). Bridge: the canonical record inside this Bitcoin proof contains the same CopyrightID. Verify: download https://artists.proofprofile.net/proofs/artist/de9f27f1-6760-4403-9abd-e67f5a4d0792.json and https://artists.proofprofile.net/proofs/artist/de9f27f1-6760-4403-9abd-e67f5a4d0792.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 0xb85341d6bedf6c7870e643786b736cf11031c77aec1119bd4744a0841967b76f. Chain 2 (Bitcoin): anchored in block 956375 (2026-07-02T16:51:38Z), 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/GBKQU1143845.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x91344dce79a7b3db45749ef0de9bab851b581b440eba4369489941eede8583af. Chain 2 (Bitcoin): anchored in block 958971 (2026-07-21T05:04:56Z), 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/GBKQU1525267.
Make You Freak (Hotchkiss & The Doctor Remix)
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xe1d434ae5e0f5c666ddaa69029df057347dcd0a76530937642707bedabb6d7c7. Chain 2 (Bitcoin): anchored in block 956351 (2026-07-02T11:38:34Z), 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/GBKQU1145337.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xebef027ffe41fa85280a8e82d4c5305c8b1935b2d23025cc5f744511752c4532. Chain 2 (Bitcoin): anchored in block 956304 (2026-07-02T03:55:08Z), 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/GBKQU1143899.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xd11ce8a032c591532890656676ebf4e15322555bff39e8b8601221ce1b04188a. Chain 2 (Bitcoin): anchored in block 956302 (2026-07-02T03:30:09Z), 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/GBKQU1145320.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x00bd62502b79c6d5fc2b6cf943b9f2a3c1bd1f74892884f8a2af2a16b5b865ac. 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/GBKQU1145322.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x3307ed5b48764dfeed190dd20e2e4b93a6ed33d67fb06092380b83a5859eb05b. Chain 2 (Bitcoin): anchored in block 957124 (2026-07-08T03:53:27Z), 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/GBKQU1525268.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x98c0be5a9ea0d41f8d40a11f858765493c9eb7cfb7e80959e514e4a4c9d3d4e0. Chain 2 (Bitcoin): anchored in block 956304 (2026-07-02T03:55:08Z), 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/GBKQU1145318.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xb85341d6bedf6c7870e643786b736cf11031c77aec1119bd4744a0841967b76f. Chain 2 (Bitcoin): anchored in block 953520 (2026-06-13T13:32:09Z), 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/GBKQU1143845.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x2880c0ac09945ac06b90793662e18ed5de269d504b984dd151827522f62cf7cd. Chain 2 (Bitcoin): anchored in block 957124 (2026-07-08T03:53:27Z), 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/GBKQU1143874.
Evolution Plus Classics (Mixed by Scott Brown)
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xb50637772380c24a13efefa8687dc2198485af5f796adb026d4765b6108ff334. Chain 2 (Bitcoin): anchored in block 956304 (2026-07-02T03:55:08Z), 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/GBKQU1145319.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xd61abac34374813579ae8d98adf234dbd1570c0d8a5619e2a758fea051abf1f2. Chain 2 (Bitcoin): anchored in block 956304 (2026-07-02T03:55:08Z), 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/GBKQU1145332.