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 0x340c9b6e47e129cd6c3e8a5553243e7e981f941f3e360224050e2347df03458f. Chain 2 (Bitcoin): anchored in block 953758 (2026-06-15T07:48:25Z). Bridge: the canonical record inside this Bitcoin proof contains the same CopyrightID. Verify: download https://artists.proofprofile.net/proofs/artist/b0569089-8ff0-4517-a9de-b6b2d651a470.json and https://artists.proofprofile.net/proofs/artist/b0569089-8ff0-4517-a9de-b6b2d651a470.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 0x1e3bea8b6a6c957e27b31ff218d68a3a0bf9f7cd1c614b8ada1a6c36faab925a. Chain 2 (Bitcoin): anchored in block 956634 (2026-07-04T10:04:33Z), 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/DEAR42183189.
I komm mit meim Schlepper (Kloß mit Soß Remix)
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x3705cedaf83e404c9265ba8b1b72a875c43556209800a1d185976eef6f4fa7ae. Chain 2 (Bitcoin): anchored in block 956841 (2026-07-05T22:14:35Z), 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/DEAR42239854.
I komm mit meim Schlepper (Alex Noise Hardstyle Remix)
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x1df07ced676352953b99a42e1ad3bccfcb06219c4c0b29678b9453794539b1a9. Chain 2 (Bitcoin): anchored in block 959026 (2026-07-21T18:20:35Z), 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/DEAR42466298.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xe0bec9b61d5775fa22b41d61d5d216371e38d6d4ac52142a4fdff15d77355607. Chain 2 (Bitcoin): anchored in block 956776 (2026-07-05T10:59:37Z), 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/DE1JN2404393.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xc7db0f85c747538b7e2c2f9e914265bbbc4df39a2fbedf45c8f0c3f271e7c53d. Chain 2 (Bitcoin): anchored in block 957891 (2026-07-13T18:21:04Z), 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/DEAR42564800.