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 Note: an OTS proof may carry multiple Bitcoin attestations; OTSBitcoinBlock is the earliest confirmed one — a later attestation inside the proof corroborates it and is not a mismatch
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xbded5723fe394b609af8933eb1fc14e6b1d390aa1e3738722351dc1c7a8e147e. Chain 2 (Bitcoin): anchored in block 953407 (2026-06-12T19:24:56Z). Bridge: the canonical record inside this Bitcoin proof contains the same CopyrightID. Verify: download https://artists.proofprofile.net/proofs/artist/e5f6de3f-a76e-4754-8d30-6fc5de67e564.json and https://artists.proofprofile.net/proofs/artist/e5f6de3f-a76e-4754-8d30-6fc5de67e564.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 Note: an OTS proof may carry multiple Bitcoin attestations; OTSBitcoinBlock is the earliest confirmed one — a later attestation inside the proof corroborates it and is not a mismatch
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x7b2c9571f56f23a0d0861667e6c9975cd47987ff44deb7faae8fbcf457bfb439. 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/QZTVM2366773.
A DECISÃO FOI DE VOCÊ vs VAI SENTANDO TALARICA
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x5139d4dda46625f0992e7735a0a923273cdcb4c4d989f8d8dbb712fe10b81a21. Chain 2 (Bitcoin): anchored in block 960455 (2026-07-31T19:53:13Z), 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/BC1U32200890.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x9060f20e6696366b19fe651e82a05fd1f046b52d325d1516fb0fd855f8d50f76. Chain 2 (Bitcoin): anchored in block 960418 (2026-07-31T15:20:15Z), 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/BC1U32200888.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x2c88226843242c1824a2ffc5446c42ebb76e9e2f219fb4f32e7fb5f840ec10f9. Chain 2 (Bitcoin): anchored in block 956304 (2026-07-02T03:55:08Z), 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/BCIH82209178.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x61d46fd824cc78fe60933cf703e677e53652543006d5f5a46b5642c61816406e. Chain 2 (Bitcoin): anchored in block 960473 (2026-07-31T22:27:44Z), 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/BC3PG2306050.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x5c3416406d6c6558e62dfae6ad7a1042875515f9ee574608dc2191c79622216c. Chain 2 (Bitcoin): anchored in block 960327 (2026-07-31T00:26:26Z), 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/BXIV82310389.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x01ecae0cfe789ddba9223c5e81c7ea56a9968b83e6f8e83cd17148703863a3b3. Chain 2 (Bitcoin): anchored in block 957120 (2026-07-08T03:22:41Z), 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/BCIH82301217.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x899d393fb766f4e17f25812e088e07ef49c983647b01a87151e2bd2ec031a15e. Chain 2 (Bitcoin): anchored in block 956304 (2026-07-02T03:55:08Z), 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/BCIH82203187.
Montagem - Vou Empurrando Vs Ela Faz a Xereca de Mola
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xcbe718873ed1f294e0b82a9e460be7f94aaa418a1131ce9d68769d5e5f8ed287. Chain 2 (Bitcoin): anchored in block 960397 (2026-07-31T12:24:41Z), 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/BCIH82203944.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xd699d992ea1684a043126352bf44e471313b744936c2f14e81040ac22a0cbc52. Chain 2 (Bitcoin): anchored in block 956302 (2026-07-02T03:30:09Z), 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/BC1U32200366.