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 0x40737072ecde737b87ab9551015c42d1cab9fdcb92ec935d886fef0b7b5daac4. Chain 2 (Bitcoin): anchored in block 953598 (2026-06-14T06:40:11Z). Bridge: the canonical record inside this Bitcoin proof contains the same CopyrightID. Verify: download https://artists.proofprofile.net/proofs/artist/0c0f3ae3-b69d-484a-9884-4e7d2e1dca21.json and https://artists.proofprofile.net/proofs/artist/0c0f3ae3-b69d-484a-9884-4e7d2e1dca21.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 0x88669d25344e70de458f2829d0d31e42592410aa087154b01729d61133c8777d. Chain 2 (Bitcoin): anchored in block 953536 (2026-06-13T17:25:41Z), 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/NOOLS1602010.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x2176605e98c0a79d305da361b181e21358b4df08317f4088282855fec1e12c73. Chain 2 (Bitcoin): anchored in block 956304 (2026-07-02T03:55:08Z), 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/NOOLS1602020.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x3198b0d268e0e2f5ba9a38addc6a0f47ae7c2fbe96b931b27464f2f338061ec9. Chain 2 (Bitcoin): anchored in block 956304 (2026-07-02T03:55:08Z), 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/NOOLS1602030.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xbc555d15be4ed8e853e39b55b390a62be6bea9dfcfedf92a9f0157b6a7b9cb25. Chain 2 (Bitcoin): anchored in block 956351 (2026-07-02T11:38:34Z), 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/NOOLS1602040.
Baby Do You Wanna Bump - Daniel Maloso Remix
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x72a61ec8e6f6b1ce2ebfb26bd9ba97042b94e25129b5f60d9d1026d2b92f943c. Chain 2 (Bitcoin): anchored in block 956312 (2026-07-02T05:09:12Z), 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/NOOLS1602031.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x695e1dc790d1d1fc3a4fab5fc3599c25681f033322008ed396bc5215c66da8bf. 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/NOOLS1602041.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x790cd38528ccb9897ebeac4144413814d4bc5c124c388ca3ddc9dccae2d7b601. Chain 2 (Bitcoin): anchored in block 957120 (2026-07-08T03:22:41Z), 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/NOOLS1602022.
Disco Circus / Firecracker (Dan Tyler Remixes)