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 0x6e48cbadb52245e08ce58efd9a0f2780c4d2346c568ca114f5350831be984e0e. Chain 2 (Bitcoin): anchored in block 953648 (2026-06-14T15:20:52Z). Bridge: the canonical record inside this Bitcoin proof contains the same CopyrightID. Verify: download https://artists.proofprofile.net/proofs/artist/3e856395-dd2d-46de-a3d9-b1ba12744afb.json and https://artists.proofprofile.net/proofs/artist/3e856395-dd2d-46de-a3d9-b1ba12744afb.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 0x50377f972f0beb85a52f3d7e93fe7504e6e4fb4a99f18b8b95dbc76d3bd1e8d4. 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/ZBCKG2200017.
Shaya Imoto (feat. 2woshortrsa, Stompiiey & ShaunMusiq & Ftears)
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x75263da21401cde572a375bb9287a750e756ad785d54aee70a41f21a40c46d72. Chain 2 (Bitcoin): anchored in block 953528 (2026-06-13T15:41:10Z), 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/ZB88P2300301.
Nanini (feat. Felo Le Tee, 2woshortrsa, Stompiiey & ShaunMusiq & Ftears)
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xa05cb4f34ce5949ee1975035b09c11ae8cc69b2db114a2d6d67129f228074b0c. 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/ZB88P2300305.
AZUL (feat. BoiBizza, Stompiiey & Sicelo Welo) - Revisit
AZUL (feat. BoiBizza, Stompiiey & Sicelo Welo) [Revisit]
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x282d441358582eb76e0ab895da39e120dabce4ccd7fa82a5f6d2e51fa3cb75e6. 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/ZA56E2527446.