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 0x4a82c91b31f5bd6f1f4d5aaef8f26fddd71fce9b1043cd3790bd34cc9db1a143. Chain 2 (Bitcoin): anchored in block 953407 (2026-06-12T19:24:56Z). Bridge: the canonical record inside this Bitcoin proof contains the same CopyrightID. Verify: download https://artists.proofprofile.net/proofs/artist/4d60af79-e297-4938-b42b-43ae379b031f.json and https://artists.proofprofile.net/proofs/artist/4d60af79-e297-4938-b42b-43ae379b031f.ots, run `ots verify -f record.json proof.ots` (https://opentimestamps.org).
Nada Será Como Antes (Nothing Will Be As It Was)
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 0x11319a26a790e2cc160fa7eea6f095df85037ead817e31e817f2815e0102817c. 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/BRRGE2401168.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xfc2a65b18322608d4d8adac70222dca7da91ddb1e37190c2be8f9e6328770a64. 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/BRRGE2401170.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x51e6f80adcae5d14d59258bd1b6eaafacbe7316d64b510df74417ff760567dae. Chain 2 (Bitcoin): anchored in block 953520 (2026-06-13T13:32:09Z), 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/BRRGE2400557.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x9f1bff00e6bb503edf47dcf77349325f950d6041ede19c52c35d4fd02e509291. 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/BRRGE2401172.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x67372a21cd824ee8e9ec826d057299c4d6859a6e3b09cfb23e8abd41dbf6679e. 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/BRRGE2401174.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x5f297699d6704ec8f25111d9885571447484b5576fe2ea00dc9d8914408de035. Chain 2 (Bitcoin): anchored in block 956302 (2026-07-02T03:30:09Z), 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/BRRGE2401176.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x9c6c2ac8d3bb99fceb58294fc848ec17490c45c8754c7e9d8104375739d600ea. Chain 2 (Bitcoin): anchored in block 956302 (2026-07-02T03:30:09Z), 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/BRRGE2401178.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x0b112d1dec54d6409db9cb8cdfe8a3b83da53e2c6f38bc0f05a948d29134b778. 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/BRRGE2400732.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x3c5a2ee1dbf6c0ba371aeeadaec9b8b4fdd55ab5fba798ccfc28306967ab494c. Chain 2 (Bitcoin): anchored in block 956302 (2026-07-02T03:30:09Z), 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/BRRGE2401180.