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 0x199ce3d4a32879e11ba99cb54c43e70292f67cb5cc8e92ceadb561d886419c25. 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/28dda6d4-398f-4ec0-bd92-69a8cb23f348.json and https://artists.proofprofile.net/proofs/artist/28dda6d4-398f-4ec0-bd92-69a8cb23f348.ots, run `ots verify -f record.json proof.ots` (https://opentimestamps.org).
Automotivo Pega na Minha e Balança (feat. MC Jotinha)
Ela Influência as Amiga (feat. MC Pedrinho SS & Mc Magrinho)
Mega do Senta (feat. Mc Vuk Vuk & Mc Magrinho)
Senta no Colo do Vuk Mal (feat. Mc Vuk Vuk)
Trepa Com os Trafica da Favela (feat. Mc Vuk Vuk)
Toma Lança e Sarra no Piru (feat. MC MN)
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 0x9804603f496e0b10b6382f53109e962b8d68d459bec90d8a7f98c61c33a8f02e. 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/QZEQU2208479.
Montagem Automotivo da Putaria (feat. DJ Jhow Explode)
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x8678b5f1ea5e265cbfa81152dc42c813b7cfe17582cc4645c2da135a9d494cb0. Chain 2 (Bitcoin): anchored in block 958122 (2026-07-15T08:02:29Z), 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/QZEQU2208882.
MC TILBITA - VEM PRA CÁ NOVINHA DO BUC3TÃO
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x86e73e89943c2caa55a87b5a5fe849c53a1a09190e2205a8c05d45e4b9afeb47. Chain 2 (Bitcoin): anchored in block 956738 (2026-07-05T04:47:21Z), 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/BCIH82207325.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x38d55a59441ee072779a60951b8e98826e8095c6a0b7a9309f06fe074842ce49. Chain 2 (Bitcoin): anchored in block 956420 (2026-07-03T00:42:11Z), 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/BCIH82207324.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xc0a847ba91a123b034b0845405021bb5dfdbb3de7a35723d9f5d164a3354ffda. Chain 2 (Bitcoin): anchored in block 956474 (2026-07-03T08:56:35Z), 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/BCIH82208044.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x51910a5e5b8d99811da141c7bb002c2076932e4e9e069a1bf6da9002f189429e. Chain 2 (Bitcoin): anchored in block 958495 (2026-07-18T04:39:02Z), 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/BCIH82209116.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xd5de2ab3c3f5a1ce6fb873fb65d964f2e715b28b55a0d44055f97b4782dc3db6. Chain 2 (Bitcoin): anchored in block 957124 (2026-07-08T03:53:27Z), 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/BCIH82208333.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x0216994311aac7d6ccaed2bc31ee1ada8ab280acf5c26a75754de9855580e14b. Chain 2 (Bitcoin): anchored in block 956351 (2026-07-02T11:38:34Z), 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/BCIH82212082.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xb274c40624d27774d99bc233dd9dd5d7c22c37142faff01b721416b7d1c2836f. Chain 2 (Bitcoin): anchored in block 957124 (2026-07-08T03:53:27Z), 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/BCIH82209183.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xc560753233e6b664581414719d248a2e06e3037326b19ff400d579fc19fc43c7. 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/BCIH82208331.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x4e6d0c071ac20324ab32ae3744cb2e5885a7e4f8448cfdd8c2f831df8efb9cc1. Chain 2 (Bitcoin): anchored in block 960264 (2026-07-30T14:36:16Z), 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/BCIH82207889.
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 0xe5d9b53c4c2d665328276ee2b77baef5e35b4d755aaaf818097deaaf370dac24. Chain 2 (Bitcoin): anchored in block 960478 (2026-07-31T23:30:38Z), 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/BCIH82209162.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xb235826f4c1cc01a9f66c9d712fec3a68752e8d112d0e74bc4a9c63bb648e21e. Chain 2 (Bitcoin): anchored in block 960337 (2026-07-31T02:51:48Z), 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/BCIH82209176.