1. Compute SHA-256 of OTSCanonicalRecord value → must equal OTSHash 2. Open OTSProofURL → extract Bitcoin block number → must equal OTSBitcoinBlock 3. GET OTSBitcoinBlockVerifyURL → block must exist at that height 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 0x3c8c553193e38e7d50c5151163a527ae371ee59b4591d8a7c7d9b9961fd0cbd3. Chain 2 (Bitcoin): anchored in block 953997 (2026-06-16T20:07:57Z). Bridge: the canonical record inside this Bitcoin proof contains the same CopyrightID. Verify: download https://artists.proofprofile.net/proofs/artist/1921b22c-e86b-4425-9562-116ef4f4aaf6.json and https://artists.proofprofile.net/proofs/artist/1921b22c-e86b-4425-9562-116ef4f4aaf6.ots, run `ots verify -f record.json proof.ots` (https://opentimestamps.org).
Garra e Fé, Fauna e Flora, Revivendo as Canções!
Dias de Glória / Esse Vermelho / Pescador Sonhador / Tira-Prosa Chegou / Mestre Dandan
O Segredo Maldito/ Waraná/ Homem Dourado/ Rito da Cura Wai Wai
Gingado do Meu Boi/ Tradição Tiraproseana/ Batucada do Meu Boi/ Pulsa Coração/ O Canto da Galera
Enfeite do Amor / Ciê / Predomínio Vermelho / Boi Povão / Estrela Encandescente
Amazônia: Luta, Resistência e Liberdade!
Amazônia: Luta, Resistência e Liberdade! (Playback)
Amazônia: Luta, Resistência e Liberdade! - Playback
Inabalável Guerreira Jaimara Dantas - Playback
Ajuricaba, o Herói da Resistência. - Playback
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 → block OTSBitcoinBlock must exist at that height 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 0x78beede6f59ed276f0818d848220c38aa7d07881714f5fe76d902f6fe7c281f5. Chain 2 (Bitcoin): anchored in block 956560 (2026-07-03T23:28:02Z), 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/QZNJW2583241.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xa06d0bc48e049fbf478364b57a671242752199af1f90d5ba5e6fe896c309717d. Chain 2 (Bitcoin): anchored in block 956725 (2026-07-05T01:12:41Z), 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/QZNJW2583242.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x209d6685cd978bff93b65cf7bfa60a07919e6a3533920d389cb4e90cfc72b43a. Chain 2 (Bitcoin): anchored in block 956776 (2026-07-05T10:59:37Z), 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/QZNJW2583248.