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 0xae8445864c59e9188fe41478fc83dd9feb2b3421c67a5f4cbeb027aa262c516b. Chain 2 (Bitcoin): anchored in block 953408 (2026-06-12T19:28:13Z). Bridge: the canonical record inside this Bitcoin proof contains the same CopyrightID. Verify: download https://artists.proofprofile.net/proofs/artist/15ce12f8-8b3c-4bf3-a40a-d591f343e824.json and https://artists.proofprofile.net/proofs/artist/15ce12f8-8b3c-4bf3-a40a-d591f343e824.ots, run `ots verify -f record.json proof.ots` (https://opentimestamps.org).
Lua de Mel nas Montanhas (feat. Luccas Trevisani)
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 0x80782735a38346cc560e31b2a010b2e95674eaac3892030db24123c33588cfbe. 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/BRLC31900017.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x2e4f849efdfec54ab2823deaecc07cb63789099667270677e770cc9fbe2c8984. Chain 2 (Bitcoin): anchored in block 953515 (2026-06-13T12:53:06Z), 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/BRLC31900018.
Anjo Recém Nascido (feat. Luccas Trevisani)
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xc284cfd255a7d5c9afaaa4bbabf6bb8aed81cface0b9dfac918c63e3f2c82f25. 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/BRLC31900019.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xb046ffe9c03f88d454801c48c5e620e67b894fae0967af326a77d939daa178f6. 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/BRLC31900020.
Sonhos de Luccas (feat. Luccas Trevisani)
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x339cdf7c97a4a6bc9fdc66ba956232cf474f1a1aba670df320daef176edffdae. 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/BRLC31900021.
Pés Descalços Caminhando no Jardim (feat. Luccas Trevisani)
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x0ae56fa4b99ad6df011c05bc5a3ffee876ac37618d4dda51f502cdd5ecc8d5d2. Chain 2 (Bitcoin): anchored in block 953515 (2026-06-13T12:53:06Z), 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/BRLC31900022.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xc10a9976a004a540d7acdefc9f380c6d00979279686a348c60cf3ed68a8afa2b. 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/BRLC31900023.