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 0x070ac1ea5ecdbba57c47569ff54b7e3c52e36b5c18ca490a3ca23e20e8b57137. 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/b67c18af-1d9a-405f-81ac-90ddbd85fa79.json and https://artists.proofprofile.net/proofs/artist/b67c18af-1d9a-405f-81ac-90ddbd85fa79.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 0x431b2c23ccb500320a3b7e95095673d288ecd6e0a6752b8fe48b354fa5ac06f9. Chain 2 (Bitcoin): anchored in block 958208 (2026-07-15T22:40:25Z), 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/BXG6R2101151.
Abençoe Todas As Crianças e As Comunidades
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x699df2dc92ff60820941ee8c546e5c80f8c54da4c106618d349bac89dea8effe. Chain 2 (Bitcoin): anchored in block 958975 (2026-07-21T08:29:41Z), 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/BXG6R2300229.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xb5bdf49747bb288bf89abc0cc660a31c8b1b253af0eb0dd7ba510705492cca77. Chain 2 (Bitcoin): anchored in block 958703 (2026-07-19T08:36:12Z), 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/BXG6R2300534.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x33df5961cb80b843fbe500e057a21d7be5b86e6a013dabc16028db2eba4edc99. 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/BXG6R2300875.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x39e8933dbdceba0b704ebd9e07ea6b6c9a034695b9c6f609e7ec3ededda88b4c. Chain 2 (Bitcoin): anchored in block 958913 (2026-07-20T19:51:22Z), 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/BXG6R2400039.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x872ddcd897aacb70f3b583c3abe568b807fdc42672c28f52b8df88c70a101be3. Chain 2 (Bitcoin): anchored in block 957866 (2026-07-13T14:54:25Z), 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/BXG6R2400260.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x819d6f2c16e46e2a50c0b18c4928249a3c931568bca5fb0413281cf2c5fff732. Chain 2 (Bitcoin): anchored in block 953520 (2026-06-13T13:32:09Z), 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/BXG6R2400249.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x75d2b4054af8340204fc261b405a499b9ad95944607defeb00f8a509ab8e3047. 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/BK4442400077.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xb50d81293ad211a31104a96bfb7815412d384af11f55650b70210b4ac2155684. 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/BK4442400173.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x75c6c64e15f34b00c1dc2dd30d2a9b59ea98f7a1dedd8f3097fe095e0e761832. Chain 2 (Bitcoin): anchored in block 958432 (2026-07-17T15:43:17Z), 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/BXG6R2400576.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xeed5a6c8781e7247e3df52f9e2dd1644f5193abf3dbb8c7d4aca8eebd78e6322. Chain 2 (Bitcoin): anchored in block 953520 (2026-06-13T13:32:09Z), 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/BK4442400230.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xf74ccb5d875e951e509873b940f94d487db31a80394a49312704bac5fcaac7e6. Chain 2 (Bitcoin): anchored in block 958130 (2026-07-15T08:37:45Z), 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/BK4442400287.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xf216254937ad3023c812d884712f35ba9ff6aacae34f2ffdebe917aee269cefe. Chain 2 (Bitcoin): anchored in block 958816 (2026-07-20T03:51:05Z), 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/BK4442400364.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xc44f4abaf78d4924a75f9e221dd7d21f8da079b03e7fed4ecb1df7249a8eae45. 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/BKHYR2500033.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x2210df5e96a68f58d039000bae0ef86074b115ddd406007db9f749eb8808644b. 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/BXG6R2500467.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x94b071031bf5c6ed892d1e49e15a4baffccc2d437daaae3e7e4efe083058b26d. Chain 2 (Bitcoin): anchored in block 958286 (2026-07-16T12:43:37Z), 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/BXG6R2500466.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xb97317a07af4adb98b3cfc2b046c783471190df6db9d8235686ace6952b371ae. Chain 2 (Bitcoin): anchored in block 958805 (2026-07-20T05:08:53Z), 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/BK4442500485.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xe98488e0d5207c0eb1b0a64ca68e977cfe00f4b76668d543cd43aa76b9a54720. Chain 2 (Bitcoin): anchored in block 958538 (2026-07-18T10:30:13Z), 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/BXG6R2500761.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x8fb9f30050eb75980aa980e634ea8d7ba9409e8066d5c743903b1604869491ee. Chain 2 (Bitcoin): anchored in block 958256 (2026-07-16T07:22:18Z), 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/BK4442500446.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x6da55269874f9615cc1b2088c486057b3a470d9fa518901a8b77b058a98edf71. 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/BK4442500635.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x2c36ba473f0790443a217c74b76603c702fe612de52faa7bef6a202ef9e2f961. Chain 2 (Bitcoin): anchored in block 953513 (2026-06-13T12:47:07Z), 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/BXG6R2300792.
Let's Go 3 (feat. MC Marks, Mc Don Juan, MC PH, Mc Luki, Mc Paiva ZS, MC GP & Makalo)
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x31766dbd7a80acb82ed9528fba8f4678aa8c897d30c63c47cf291fd35734ee01. Chain 2 (Bitcoin): anchored in block 953513 (2026-06-13T12:47:07Z), 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/BXG6R2200803.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x35764496faf1a6f644daadaadf28193a4a5ccc5e742eddb5ddd19e6d4dc5c5af. Chain 2 (Bitcoin): anchored in block 953513 (2026-06-13T12:47:07Z), 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/BK4442400132.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x0de92b5a4efca6ace64ec24b621e9ef8e2f75d5825ca009550edcf3f08a7c42d. Chain 2 (Bitcoin): anchored in block 953515 (2026-06-13T12:53:06Z), 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/BK4442300119.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x2772bd87aadb2a36e8dec8a84b2821f2af59c7b629a7cf93fc904354fc049ffb. Chain 2 (Bitcoin): anchored in block 953520 (2026-06-13T13:32:09Z), 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/BXG6R2300413.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x829349654309532cdd5c10158b665c474e40a9ee1e9a3372bb823d95488c16e9. Chain 2 (Bitcoin): anchored in block 956349 (2026-07-02T11:34:59Z), 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/BXG6R2200812.