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 0x1d15d042421f819d1eccd3dea31aa0965b268f43b86d8be0518e295aedf86714. Chain 2 (Bitcoin): anchored in block 953648 (2026-06-14T15:20:52Z). Bridge: the canonical record inside this Bitcoin proof contains the same CopyrightID. Verify: download https://artists.proofprofile.net/proofs/artist/42732b36-3167-4df4-b827-dfcfa92036d1.json and https://artists.proofprofile.net/proofs/artist/42732b36-3167-4df4-b827-dfcfa92036d1.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 0x0010fc9fafe354e91429bbd29656a7df50e3b4d520efa97335256b14d4540a1f. Chain 2 (Bitcoin): anchored in block 958686 (2026-07-19T06:43:29Z), 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/QZWDD2346541.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xeeaf10c5326d87c64bf5d1503843500f42ab90b7e3bcd1b525098a134ddd7dc8. Chain 2 (Bitcoin): anchored in block 956474 (2026-07-03T08:56:35Z), 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/QZWDD2346554.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x31ba183e629c2054b89da0f4c24baea803772ac010665f8a49392278b92d3911. Chain 2 (Bitcoin): anchored in block 956560 (2026-07-03T23:28:02Z), 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/QZWDD2346622.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x8d763f06939a8729bdce90948d04327df4685796e35bcc162e453fec804f1c0a. Chain 2 (Bitcoin): anchored in block 956725 (2026-07-05T01:12:41Z), 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/QZWDD2346623.
Cosmic Coconut (David Sound Wizard Remix)
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xa3512154dc07a3172e76bd6c19cca1fb58827a1052dbf3fa481e6c89631dd30d. Chain 2 (Bitcoin): anchored in block 958157 (2026-07-15T14:29:51Z), 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/QZ5FN2549405.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xa3512154dc07a3172e76bd6c19cca1fb58827a1052dbf3fa481e6c89631dd30d. Chain 2 (Bitcoin): anchored in block 958585 (2026-07-18T17:05:16Z), 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/QZ5FN2549405.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x1c4a852f57baa61dd449bc4d631bfac93458de70cb9f7d1f8e980e3bfe0d168c. Chain 2 (Bitcoin): anchored in block 958805 (2026-07-20T02:22:58Z), 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/QZ5FN2549429.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xacc65fbf5daabf6d3051b07c4be80acb80ba2dad87be37165cf721e3873c0cac. Chain 2 (Bitcoin): anchored in block 958242 (2026-07-16T07:25:45Z), 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/QZ5FN2549466.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x231567992632631203a7ed3dc55e1cb67e33cb44c0f64d925cb691c0dcdbae54. 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/QZ5FN2549478.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x75960505d310150c9c3d526fcb24c8d46e004b5af253144fe05401d05fb538d4. Chain 2 (Bitcoin): anchored in block 956889 (2026-07-06T06:56:49Z), 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/QZ5FN2549508.