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 0x5fa3ee6487476823ac5440faa68274708c0b79d1c9d61484f5e8742f67b3a704. Chain 2 (Bitcoin): anchored in block 953423 (2026-06-12T21:20:00Z). Bridge: the canonical record inside this Bitcoin proof contains the same CopyrightID. Verify: download https://artists.proofprofile.net/proofs/artist/3c507537-5ecc-4d99-8977-68b3544a904c.json and https://artists.proofprofile.net/proofs/artist/3c507537-5ecc-4d99-8977-68b3544a904c.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 0xcf5c1b5f244e27aeabadf1ad4f4167c41c737caf781bd4193cf74cd9100a642c. Chain 2 (Bitcoin): anchored in block 956551 (2026-07-03T21:18:05Z), 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/QZEQU2142644.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xe470b906d7c011791984bf501dbafcb620c7daa3e6d16b117d7a75f1c2beb06c. Chain 2 (Bitcoin): anchored in block 956440 (2026-07-03T04:03:57Z), 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/QZEQU2141672.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xe4972243f2df703a01c7bf966c75d276b79947c88b1c7b800f12e6d51be6e197. Chain 2 (Bitcoin): anchored in block 958489 (2026-07-18T04:13:26Z), 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/QZEQU2141677.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xe71a3033c7763f38d897924334b72717a16a5fbe6f15ba72b6d1aa55dc2aba4c. Chain 2 (Bitcoin): anchored in block 958484 (2026-07-18T03:34:53Z), 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/QZEQU2141685.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x0d873908ef1928954a5b76679c9be9636960cf2a7b0751c5927298431e3d6436. Chain 2 (Bitcoin): anchored in block 956891 (2026-07-06T07:16:32Z), 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/QZ5AB2364913.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x81faae8bba5f991540da81d797341b980dc2bb5d557cb4c729790b09a590d18b. Chain 2 (Bitcoin): anchored in block 956476 (2026-07-03T09:04:44Z), 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/ESA112444160.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x74b2e54c00bc3f20946f8646417697272d5aaba7c1dd460f782a878324716a4b. 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/QZNJV2336321.
Dois Fugitivos / Manda um Oi / Mega Sena
Forró de Galeral Gosta do Baile de Galeral / Seda Preta / Na Pista Cortando Giro / Freio da Blazer / Jeep Preto
Forró de Manaus Dor Desse Amor / Fazendo Falta / Agora Estou Sofrendo
Forró Românticas Água Com Açucar / A Lenda / Fake
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x95eae71d6a1d0bd75db723246f677ea48532925c523240338c99085017d03c38. Chain 2 (Bitcoin): anchored in block 956634 (2026-07-04T10:04:33Z), 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/ESA112573625.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xc214ce46c9c1fb10aebfe98326dea6bfd41045372d79ba0fbe83d9231b9a2afb. Chain 2 (Bitcoin): anchored in block 958146 (2026-07-15T10:33:22Z), 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/QZMZ92445688.
Forró Recordações: Solteiro de Novo / Cerveja pra Lavar / Mulher do Patrão
Forró Adega: Meu Dinheiro Desse / Vai no Chão
Forró de Galeral: Baile de Galeral / Seda Preta / Na Pista Cortando Giro / Freio da Blazer / Jeep Preto
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x80b749222f26531485a5972fe703bf03c49376bf0bf6d85320b38ddd2a6a80fc. 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/QZGLS2573060.
Forró Recordações: Primeiro Passo / Lábios Divididos
Forró Recordações: Um Dia / Fica Comigo/ Se Não Valorizar
Forró Recordações: Um Dia / Fica Comigo / Se Não Valorizar
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x209d51ed1c1fc7ba48095ed81a393d527e890ef660273200b52e191e1e30bcfb. Chain 2 (Bitcoin): anchored in block 958633 (2026-07-19T00:54:50Z), 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/QZMZ92511301.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xcced97e00ceb653533959db9ac5979b465786cfb316ba3173c5e8998252df93a. Chain 2 (Bitcoin): anchored in block 958792 (2026-07-20T01:38:39Z), 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/QZMZ92504507.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xa850c61c1a78983e7f6df0784b97ab351d6a02c4a56126399ff664742eff7e40. Chain 2 (Bitcoin): anchored in block 958157 (2026-07-15T15:55:46Z), 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/ESA112573551.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xac3fe011935adbf3c7626a3f6074dc5c1c01db00fe2e5e03298df22e55f44e81. Chain 2 (Bitcoin): anchored in block 958335 (2026-07-16T22:37:47Z), 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/ESA112573555.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x42cd2693caa5155690e8e53a51db4941db717fbfa357a6b0a4dbe94d826dba27. Chain 2 (Bitcoin): anchored in block 956551 (2026-07-03T21:18:05Z), 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/QZGLS2528876.