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 0x30ed19d39a7eb43d380b939b0f2911105cd5efa954907e8a17bee7935960a475. Chain 2 (Bitcoin): anchored in block 953742 (2026-06-15T04:47:56Z). Bridge: the canonical record inside this Bitcoin proof contains the same CopyrightID. Verify: download https://artists.proofprofile.net/proofs/artist/9c40e3a5-d2ed-498a-949a-384070439853.json and https://artists.proofprofile.net/proofs/artist/9c40e3a5-d2ed-498a-949a-384070439853.ots, run `ots verify -f record.json proof.ots` (https://opentimestamps.org).
Broccoli Soup Book One 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 0xa3b6b8acbd328153ce371b840e784aa4f3424db05135593be36b45c998ee9a84. Chain 2 (Bitcoin): anchored in block 958690 (2026-07-19T07:14:39Z), 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/QZPLR2204793.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x3e7b422254e243623e33745e864ffbd89470c6973b13e6805482be084e9eac3c. Chain 2 (Bitcoin): anchored in block 959010 (2026-07-21T15:08:06Z), 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/QZPLR2204797.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xf85811ce4f4cba3400d451397612fe535477ce78424f2d29c9501b9a85c6366c. Chain 2 (Bitcoin): anchored in block 957756 (2026-07-12T21:36:27Z), 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/QZPLR2204798.
Songs for A Video Game I Will Never Make
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x9ad03edfcc07ae1093590472d22b0fd19199063734732c8dcc37b466a98debbd. Chain 2 (Bitcoin): anchored in block 956576 (2026-07-04T02:06:47Z), 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/QZFZ32343138.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x3b3e6aa0abfb030e1fd50d4367bd48e6f953bb6bff59d8302e8ddd05387449af. Chain 2 (Bitcoin): anchored in block 958316 (2026-07-16T22:17:17Z), 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/QZES72312776.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x6dc1417bcf32e7bee474574a0c6349eb16c08261b78b84a50ea652e09005c893. Chain 2 (Bitcoin): anchored in block 958567 (2026-07-18T15:22:40Z), 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/QZTAY2333984.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x96ddb311966b532d432a1c2110c49ed690389c6b1ba37e2c38c12c4f5d0c73ad. Chain 2 (Bitcoin): anchored in block 957779 (2026-07-13T00:19:08Z), 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/QZNWS2500519.