Dazkarieh was a traditional Portuguese music band that began in 1999. The alternative rock and neofolk band consists of musicians Joana Negrão, Rui Rodrigues, João Campos and Vasco Ribeiro Casais. The
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 0x2f9541272d736823338a4caa52bc2733360dba440879fd5f5f65c868f5161f14. Chain 2 (Bitcoin): anchored in block 953842 (2026-06-15T22:22:30Z). Bridge: the canonical record inside this Bitcoin proof contains the same CopyrightID. Verify: download https://artists.proofprofile.net/proofs/artist/ff4f2492-ede6-4d24-965f-d60ec68769ec.json and https://artists.proofprofile.net/proofs/artist/ff4f2492-ede6-4d24-965f-d60ec68769ec.ots, run `ots verify -f record.json proof.ots` (https://opentimestamps.org).
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 0x2f6bc889df17c42d51b220fe176e7f8434d99cab7b32fc42d6871449d249bb15. Chain 2 (Bitcoin): anchored in block 958601 (2026-07-18T19:27:02Z), 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/PT6JR2200146.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x6066a8aea0c303d197ac327fc716e86af74d0f9d89fb42a4aee3439ccefaca9e. Chain 2 (Bitcoin): anchored in block 956826 (2026-07-05T19:27:56Z), 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/PT6JR2200147.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x273503e3b5163f63ee0d22808b96fba03b6f7517fe36875c94a34278ec044cc1. Chain 2 (Bitcoin): anchored in block 956656 (2026-07-04T14:03:39Z), 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/PT6JR2200148.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x4bc082263af344f3c6f9053bd612aba8b1f7e87fdd53708ba33c54f9d12561ad. Chain 2 (Bitcoin): anchored in block 959052 (2026-07-21T22:40:05Z), 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/PT6JR2200211.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x4bc082263af344f3c6f9053bd612aba8b1f7e87fdd53708ba33c54f9d12561ad. Chain 2 (Bitcoin): anchored in block 958867 (2026-07-20T13:02:30Z), 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/PT6JR2200211.
Ruído do Silêncio (Live - 08/04/2011 - Castelo Branco - Portugal)