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 0x541da04286e559bd6445ecb1d171e77e6e8b833985d5eaed813c64eac72f58ac. 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/3cb7c594-4491-4283-9976-555286374b1e.json and https://artists.proofprofile.net/proofs/artist/3cb7c594-4491-4283-9976-555286374b1e.ots, run `ots verify -f record.json proof.ots` (https://opentimestamps.org).
Sons Do Mar Se Acalmam Para Relaxamento, Sono E Meditação
Sons Da Floresta, Pássaros Cantando E Ventos Suaves Para Dormir Melhor
Sons Relaxantes Do Mar, Ondas Sonoras Para Sono Profundo
Relaxantes Ondas Do Mar: Cura Do Vento E Ondas Sonoras Para Um Sono Melhor
Sons Da Floresta: Sons Suaves De Pássaros E Árvores Para Relaxar
Sons Do Oceano: Ondas Sonoras Calmantes Para Relaxar Sua Mente
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 0xee6ac8335f02344c9880ace37e4731f5828c24b8b0fb94230b9d331007d619ec. Chain 2 (Bitcoin): anchored in block 958286 (2026-07-16T12:43:37Z), 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/PL50G2000381.
Sons Da Floresta: Pássaros, Árvores Suavemente Cantarolando
Sons Da Água: Mar, Chuva, Barulhos Do Cachoeira Para Dormir Melhor
Silêncio e Espuma: Sons Suaves do Oceano