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 0xbac2896ad870c4c7f02c34d9a428852e8994150d6c20fa60de4ebb9eebb7d5b5. Chain 2 (Bitcoin): anchored in block 953770 (2026-06-15T09:50:11Z). Bridge: the canonical record inside this Bitcoin proof contains the same CopyrightID. Verify: download https://artists.proofprofile.net/proofs/artist/b06899e6-a175-4fee-ae39-be445971ab93.json and https://artists.proofprofile.net/proofs/artist/b06899e6-a175-4fee-ae39-be445971ab93.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 0xbb1934ba9d09523ebbcdfcd5a082a2ff0c3ae54c3d0d41fda28325281fd9d698. Chain 2 (Bitcoin): anchored in block 958212 (2026-07-16T02:19:48Z), 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/TCABK1279055.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xf15782db046e3ed8295fa949e42f6298e8e6e3c7b22200e7417aa0a8ebeac469. Chain 2 (Bitcoin): anchored in block 956404 (2026-07-17T03:45:40Z), 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/TCABK1279065.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x42583be73e81ccd3e59cf051c238abedd161cf692f51edd08c85e437239847bc. Chain 2 (Bitcoin): anchored in block 956551 (2026-07-03T21:18:05Z), 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/TCACF1556987.
Chance to Be With You (feat. Boss Van Trigt)
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x10bacf286f5f43b30e46b6bd97ebe5dce7a369fd3c9816fc9ae706a8e69b9111. Chain 2 (Bitcoin): anchored in block 958224 (2026-07-16T02:28:43Z), 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/TCACF1556998.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x2d5e7407d51c02b7eda7059885b0c34b7a4a1c7496fad45433bdb15d2a8671df. Chain 2 (Bitcoin): anchored in block 958931 (2026-07-20T21:15:01Z), 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/TCACF1557002.