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 0x2d004bffd54d33bffa74c2e638c60b300eae9a7d268fc8d642caaff49570803a. Chain 2 (Bitcoin): anchored in block 954063 (2026-06-17T07:49:29Z). Bridge: the canonical record inside this Bitcoin proof contains the same CopyrightID. Verify: download https://artists.proofprofile.net/proofs/artist/44d963af-8f11-4265-8f0d-cc271ac3f455.json and https://artists.proofprofile.net/proofs/artist/44d963af-8f11-4265-8f0d-cc271ac3f455.ots, run `ots verify -f record.json proof.ots` (https://opentimestamps.org).
Junina Igaraçu - Verás Que um Filho Teu Não Foge à Luta
Espetáculo Igaraçu 2025 - O Peso das Minhas Asas
Vem Quadrilheiro! (Volta de Apresentação)
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 0x1637240367ba440ec554a4395f00d65f0d8f162ca580e4df0dd46ca9c845e0f5. Chain 2 (Bitcoin): anchored in block 956889 (2026-07-06T06:56:49Z), 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/QZNJW2510559.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x85f7fa3867e48d14e654c0f05d0435a76beb373add80f49508b4d2686cc2a711. Chain 2 (Bitcoin): anchored in block 958383 (2026-07-17T08:20:01Z), 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/QZNJW2510558.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x0b0ba099da8d5a48071990c903e0c776ca82b2c457ea02c15684cbb7d21bcab8. Chain 2 (Bitcoin): anchored in block 958857 (2026-07-20T12:01:21Z), 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/QZNJW2510552.