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 0xe6d932974396ea6976e539703098d7103c3e1d234d66f0ed966d5bb3952ee528. 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/36691984-b85e-4d94-81d6-47b5513bbca2.json and https://artists.proofprofile.net/proofs/artist/36691984-b85e-4d94-81d6-47b5513bbca2.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 0x4f95010ea764c9186b3dc78e71f49ffa4618d3063255e939a88c75e6d6e58a50. Chain 2 (Bitcoin): anchored in block 957872 (2026-07-13T15:39:45Z), 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/US7VG1862568.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x576ae7cd3fecbce47a5b1be02591414b04b02ef81cd6b6a80570676c9d94c4ab. Chain 2 (Bitcoin): anchored in block 956545 (2026-07-03T19:59:51Z), 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/BXPWW2000017.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xf7245a03e6f299419cfb3492fd01e721981836514a2d7185406e51668065ea98. Chain 2 (Bitcoin): anchored in block 956500 (2026-07-03T13:55:21Z), 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/BXPWW2000031.
MASHUP 'OS MENINU' II: Direito De Te Amar / Meiga E Abusada / Solução / Para / Ela Vem
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x407c51c50f1e010f7456e498c9c6a50703c420204ba69d8f86e1612439385ead. Chain 2 (Bitcoin): anchored in block 956639 (2026-07-04T11:19:20Z), 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/BXPWW2100009.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x6463bf12acd9cabe44986107a84543904ffc7c29e7a4f400800213f55e4aedd2. Chain 2 (Bitcoin): anchored in block 958170 (2026-07-15T16:21:50Z), 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/BXPWW2100034.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x4e74f04400449f4af164d240fbff399c022e5ce77f6f64e07631ea1d8463d71e. 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/BC8ZB2200015.
Mashup do Baby: Modo Avião / De Rolê / Bom
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x3b7d8732efff13bbba24ae35e3f407c012af1a8b7ffb86c1bcc3183ada759114. Chain 2 (Bitcoin): anchored in block 956375 (2026-07-02T16:51:38Z), 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/BCO3K2300046.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x810febadbcc19a29d0bf37c0bd82f63d705b72fd6783532b1a35fb5054b039f2. Chain 2 (Bitcoin): anchored in block 958341 (2026-07-17T03:46:35Z), 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/BCO3K2500064.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x4d5bd24f0f7225a66a0d037dcc642ecb7ad400d57780aa273dff87414ba81231. Chain 2 (Bitcoin): anchored in block 956894 (2026-07-06T07:53:57Z), 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/BCO3K2300140.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x2a7b481c0c4aa25fb14e7afa4c4c58a31b7ff7427266000cc57a7b2f0bc4387b. Chain 2 (Bitcoin): anchored in block 953528 (2026-06-13T15:41:10Z), 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/BCO3K2300119.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x9aa56a0963f64f2851cc1dc1ea21911f2e83965b655f571dd4844e183d460088. Chain 2 (Bitcoin): anchored in block 957118 (2026-07-08T03:20:19Z), 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/BCO3K2200116.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xac2b0d0be90db85f00752c38419fc5ac7dabc8fcf0139565936a040da2481665. Chain 2 (Bitcoin): anchored in block 956312 (2026-07-02T05:09:12Z), 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/BCMS22100092.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x6c4e0f3dbee9e27fbeafbc5a966b6c7ae6898446a83e0e143942f28815764289. 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/BCO3K2200092.
Faz o Teu Nome (feat. Os Quebradeiras, DJ Zullu & Stefan Baby)
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xc26e96a6a362489e3cf016fd2ba1b9c5ac201618fa56570a4633c11d08e6f511. 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/ES47F2300516.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xef43d078b55864adb939711ae74cf8cb2abb5764b23c60b7d8885f8476aba18e. Chain 2 (Bitcoin): anchored in block 957118 (2026-07-08T03:20:19Z), 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/BCO3K2200095.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x012bdf638b8ae83ac624f75adf80f9875790d06910ed4f6ceae94e3430f5bb14. Chain 2 (Bitcoin): anchored in block 953536 (2026-06-13T17:25:41Z), 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/BCO3K2300151.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x8a32ee6cd70f98342f371cf17a14b8db2118b2f7672599ba7eeb23b2095808bf. Chain 2 (Bitcoin): anchored in block 957819 (2026-07-13T07:53:33Z), 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/QZGLS2024451.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xc45f1fce816821fc9753d010ceb8b57fd580c8ba55f27df6fbbf22152d5d088d. Chain 2 (Bitcoin): anchored in block 960273 (2026-07-30T15:42:38Z), 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/BCO3K2200082.
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 0x6ccf672949ca4fa5d8147f6dbf305b04b5175d0bf214b04f4e30e655512e941e. Chain 2 (Bitcoin): anchored in block 960145 (2026-07-29T21:13:37Z), 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/BCO3K2200009.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x5b67b22bee51f5391d46b74088ad98ef77fb6b82e7b3026052f41e976c70b382. Chain 2 (Bitcoin): anchored in block 960101 (2026-07-29T11:46:30Z), 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/BCO3K2200125.