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 0xcfe2c04deda3166c59671023c4d78c0637b080531c9846116149082cf2cefffe. Chain 2 (Bitcoin): anchored in block 953408 (2026-06-12T19:28:13Z). Bridge: the canonical record inside this Bitcoin proof contains the same CopyrightID. Verify: download https://artists.proofprofile.net/proofs/artist/88847128-fe6c-4ec5-9e91-0ec853f98002.json and https://artists.proofprofile.net/proofs/artist/88847128-fe6c-4ec5-9e91-0ec853f98002.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 0x30ab4953becf6b6fd3498f79137363eeb33962ebb5eda6f2df7681700dd50ede. Chain 2 (Bitcoin): anchored in block 958074 (2026-07-14T22:45:25Z), 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/DEQ022391062.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x03bdff13ce009a16d50ea19f2a622ca06a206d0ff7bf44be27f7d6af684d7c1a. Chain 2 (Bitcoin): anchored in block 958208 (2026-07-16T01:22:09Z), 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/DEQ022001789.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x4847c14206a0475f38ad497060bad8b2a1cbd9151a94fe63211d0a0b29230efe. Chain 2 (Bitcoin): anchored in block 958163 (2026-07-15T16:39:10Z), 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/DEQ022001790.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xafbc8232c939347efd5e0ca8a5608fd8c322d84bb247ac9b18ffade5fe569ea7. Chain 2 (Bitcoin): anchored in block 958163 (2026-07-15T16:39:08Z), 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/DEQ022001791.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x553d95e475ce71aa2a8b8732bba765f06a016247cce2cfb25b63f9c33516f110. Chain 2 (Bitcoin): anchored in block 958211 (2026-07-16T01:52:26Z), 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/DEQ022001795.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x12b9b9dc06a26cf2d2c837aae701c5119e2491f6577efed7f30a898abf006ff7. Chain 2 (Bitcoin): anchored in block 958880 (2026-07-20T15:31:04Z), 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/DEQ022001797.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xd3222d7db6620284615c6e836e3d25cbf5e7256f0d86f5ac1347d7deb62e439c. Chain 2 (Bitcoin): anchored in block 956738 (2026-07-05T04:47:21Z), 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/DEQ022001798.
Ass & Benefits Remix / Boy & Girl Tale Remix
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xfa0f62f33fcf84108c0338562e51c4866014eb9358764548eda99c611ffae863. Chain 2 (Bitcoin): anchored in block 958202 (2026-07-16T00:01:42Z), 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/DEQ022110870.