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 0x3c3c189ffc25822e96af017aecea78ef3363663447e5631d73c3393aa782daae. 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/d0e9770f-c7e4-425b-9fe7-83c8e1b5c901.json and https://artists.proofprofile.net/proofs/artist/d0e9770f-c7e4-425b-9fe7-83c8e1b5c901.ots, run `ots verify -f record.json proof.ots` (https://opentimestamps.org).
Seresta Infantil com ZAQUINHA - Arrocha KIDS - Bloquinho da Turma do Romeo
A Rua Vai Ficar Limpinha (Se Essa Rua Fosse Minha)
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 0x58ca0c78309a9659cd4ac87d56e626f627bac79973ee36ad94c86f1daa93493a. Chain 2 (Bitcoin): anchored in block 958245 (2026-07-16T08:10:47Z), 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/USCGJ2555779.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x85d1dabbd3d2a3d465922022f60c2ffaf72ce00d5e9e5dd41c7fea9dc255c6fc. Chain 2 (Bitcoin): anchored in block 958870 (2026-07-20T13:31:22Z), 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/USCGJ2555780.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x347b5c1f6de928255d252c9be7872726b781e524c00f1582402b473de70d7f4e. Chain 2 (Bitcoin): anchored in block 956772 (2026-07-05T10:01:46Z), 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/USCGJ2555781.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xb2a5fa58f3c1a7582e6f4d7064b2208dcd2d8cbcc434efa75c1494a4f6dee77f. Chain 2 (Bitcoin): anchored in block 956772 (2026-07-05T10:01:46Z), 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/USCGH2598032.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xd6348105ebad572af3589a3034a99cca846c2bb92ff27f1257592deb035e5df2. Chain 2 (Bitcoin): anchored in block 958529 (2026-07-18T09:21:41Z), 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/USCGH2598033.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x1e21e0fd6def8815ac51d52952066d6cd2cc1becf22543caa19e756844eaf3a2. Chain 2 (Bitcoin): anchored in block 956857 (2026-07-06T01:26:17Z), 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/USCGH2598034.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x7fcdecd82e5e763154153e9edcf2e40c1b0b81b3c07d5689d41730985a88bf26. Chain 2 (Bitcoin): anchored in block 958873 (2026-07-20T11:48:10Z), 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/USCGH2598035.
Forró Infantil com Zaquinha - Arraiá da Turma do Romeo
Forró com Zaquinha - Clássicas da Turma do Romeo