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 0x5a069d02c245f5b755ac3c490ae7aba66c437957afb2076bdaf71315a92b0f4e. 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/867ee29f-fef0-4f33-b759-1bce83333642.json and https://artists.proofprofile.net/proofs/artist/867ee29f-fef0-4f33-b759-1bce83333642.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 0xe966fc66028d545f678621d568af4750b468fd5d993078b50493becdff012d22. Chain 2 (Bitcoin): anchored in block 956656 (2026-07-04T14:03:39Z), 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/TCACZ1772567.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x4fcb0132b64df58f932baece891f4b3affaf86433cbe1a7cb25085629cbd00a8. Chain 2 (Bitcoin): anchored in block 958115 (2026-07-15T10:17:11Z), 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/TCACZ1772571.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x461b3c7a66bd914d545c050e5a03d040095d94fb7be4887dbd880fbbbd1a3911. Chain 2 (Bitcoin): anchored in block 959001 (2026-07-21T11:41:42Z), 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/TCACZ1772579.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x093b7b575558c66a6b0e16af1128437054b8c1abc7d3fb07d74a6138d3560af3. Chain 2 (Bitcoin): anchored in block 958876 (2026-07-20T12:15:48Z), 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/TCACZ1772583.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x30faf1de21b3528257e8b79af08b67f645f03a9adb1b288262b677deca3e8b05. 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/TCACZ1772586.
Los Amores De Julia (feat. Alacranes Musical)
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xd7bca92b1b7ede83178cd91052489ffe57e0cf598b9eed430e1d2a10649275ae. Chain 2 (Bitcoin): anchored in block 957863 (2026-07-13T14:41:15Z), 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/TCACZ1772592.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x5db6ea60b227c25eb098c05282d7fa031b5f9ea1994bdca5fe1bf18236c33f4d. Chain 2 (Bitcoin): anchored in block 958924 (2026-07-20T21:08:16Z), 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/TCACZ1772606.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xb939f78788627499572112ef9de7c60fe142f87dcda26bf5312d2e242659eb7a. Chain 2 (Bitcoin): anchored in block 958690 (2026-07-19T07:14:39Z), 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/TCACZ1772618.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x661e811e00919aa081c8f2abb137ea1379545ab1e70e45ce0c0136b19de6aa2c. Chain 2 (Bitcoin): anchored in block 958977 (2026-07-21T08:54:04Z), 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/TCACZ1772623.