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 0x5ca58e87814715e138609d10067e404855fa2483fbcb69a20fb312406dbb3621. Chain 2 (Bitcoin): anchored in block 954342 (2026-06-19T03:22:39Z). Bridge: the canonical record inside this Bitcoin proof contains the same CopyrightID. Verify: download https://artists.proofprofile.net/proofs/artist/8eda5462-3d5b-4c43-b741-0d71336cc9a5.json and https://artists.proofprofile.net/proofs/artist/8eda5462-3d5b-4c43-b741-0d71336cc9a5.ots, run `ots verify -f record.json proof.ots` (https://opentimestamps.org).
Classic Man/Fifth Street Orchestration - Club Mix
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 0x88e81f78d4e4a02327eb5518b391f54e1e70d10686c9ef324178febb9e9b20ca. Chain 2 (Bitcoin): anchored in block 957145 (2026-07-08T08:56:20Z), 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/USNRS0621182.
Classic Man '93/Keepin' On - The Classic Man Mixdown
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xae0569bff8b1c874064f5cd7f26278a303c5af22bc8fc9fba47b14c41b25f34e. Chain 2 (Bitcoin): anchored in block 957124 (2026-07-08T03:53:27Z), 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/USNRS0621188.
Classic Man '93/No Mind Games - Mind Altering Mix
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xdc2e8f453991eb433091fb01d82736edc554b381b31b817c7cf892092d1935c4. Chain 2 (Bitcoin): anchored in block 957124 (2026-07-08T03:53:27Z), 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/USNRS0621190.
Classic Man '93/Rapid Winds - 75 Mph Mix
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x88d8126fd09315360ccbf2a78763924a4a06c87fad8fab5528db698c80eb9c05. Chain 2 (Bitcoin): anchored in block 957145 (2026-07-08T08:56:20Z), 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/USNRS0621186.
Look What We Found On This Nervous DAT EP
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xc68837042013c9e1368a6bcfe39f0c0cddb85ae544002bda4d70c9e9e0942ec3. Chain 2 (Bitcoin): anchored in block 957118 (2026-07-08T03:20:19Z), 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/USNRS1836992.