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 0xe690b8eb298cfd20613a04b7ae944258da9f97676cc36580d88baf41682d08f8. Chain 2 (Bitcoin): anchored in block 953842 (2026-06-15T22:22:30Z). Bridge: the canonical record inside this Bitcoin proof contains the same CopyrightID. Verify: download https://artists.proofprofile.net/proofs/artist/f3b300ac-e669-4d1c-8134-111e30373657.json and https://artists.proofprofile.net/proofs/artist/f3b300ac-e669-4d1c-8134-111e30373657.ots, run `ots verify -f record.json proof.ots` (https://opentimestamps.org).
Star Wars: Galactic Starcruiser (Original Soundtrack)
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 0x430491b048a9880fee748fc8b444a0ae08a1facc5799125e25b3eb9a12497bbd. Chain 2 (Bitcoin): anchored in block 958749 (2026-07-19T16:26:17Z), 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/USWD12326292.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x011f5e5c461e292bdff856e03e6e2312b233b3af8c34baa98520e96e5408e7ef. Chain 2 (Bitcoin): anchored in block 958924 (2026-07-20T21:16:35Z), 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/USWD12326294.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xfeef4dccb951a15efaac82979a2b945ad08304564e16670d83e33310b8ca8438. Chain 2 (Bitcoin): anchored in block 958955 (2026-07-21T05:22:14Z), 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/USWD12326295.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xfc0c6691a870a65b28b4663376f744914c257a72f79f8f97dc1994f5fbf6c2eb. Chain 2 (Bitcoin): anchored in block 956822 (2026-07-05T18:48:28Z), 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/USWD12326297.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xfe60ceef1396f2e92f103b3edea7725eea58c4ca78b55b2da92238308580dd2f. Chain 2 (Bitcoin): anchored in block 956891 (2026-07-06T07:16:32Z), 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/USWD12326300.