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 0x4c50d5ac6102ce441ff211babeecf13e7f33e42d2a6e822b91062f48b7fc17e7. 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/3161c15f-86f1-4e82-a5af-29b962d58c62.json and https://artists.proofprofile.net/proofs/artist/3161c15f-86f1-4e82-a5af-29b962d58c62.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 0x6987d3780edb4a0b8c3c011c8d40bc2cb3105f219eb2d89d9771e1d49d8c9865. 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/NIKIT2200513.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xbe542ff10ed83e63ccedd8a7206ea0881a14f0f5e9b737bbcaa85f65b97387ad. Chain 2 (Bitcoin): anchored in block 958271 (2026-07-16T09:16:54Z), 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/NIKIT2200512.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x4ee62b4cc8189be13a512ad7398fd62afc3d161dc57d69952a98eb0e4abdb4b5. Chain 2 (Bitcoin): anchored in block 958316 (2026-07-16T19:42:29Z), 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/NIKIT2200511.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x3555f22eca7d77c892896afdbaa61cf261619b5ed54d79fbcc4dff89669b0444. 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/NIKIT2201182.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xfa320c5f0a276c23d6e38d3a4a4237c7b253a6f0146d30396934f7b2ab4cd61c. 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/NIKIT2201224.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xc6da3bd929e9ad0e7580b534d2cf814902e998f4c31cbbb46ee6004018f9eaba. 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/NIKIT2201223.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x71d5edd8dc80c1c752cbb1288e361506c3a1aa92246e55b902b51d9f6c83b4bd. 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/NIKIT2201583.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x24195bc3f0e6e687f657679a4f89352fd5a40fc08ef395b4cf96ae011da2704f. Chain 2 (Bitcoin): anchored in block 958404 (2026-07-17T11:34:58Z), 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/NIKIT2201584.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xa01273eac620e09c84a773978ddf95ef77f82de4b4ed0ddcb2a9e0741cdfa28e. Chain 2 (Bitcoin): anchored in block 958942 (2026-07-21T00:24:07Z), 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/QZEQU2221311.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x2775036a3c617c1bd25d93bf2af0d3095dfe33ee2e037ac3ad07dd44837d0f0a. Chain 2 (Bitcoin): anchored in block 958498 (2026-07-18T04:54:58Z), 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/QZEQU2221312.
Uii Que Delícia (feat. Mc guizinho niazi & MC Bob Anne)
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x884e81fa7d673c9436ffa12fd7d11a07e5c2150c4a59e9dab3f46576ff1e8976. Chain 2 (Bitcoin): anchored in block 958202 (2026-07-15T21:23:21Z), 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/ES47F2300278.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xe24ec3cf9635cf9a991ff9170fa42a6257bc74a946a6d9d4f1454c4ebe4e9fc4. Chain 2 (Bitcoin): anchored in block 959001 (2026-07-21T11:41:42Z), 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/ES47F2401477.
Puta é Só um detalhe ( Remix de Arrochadeira )
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xd202b8f6c0b0ed96baf6658872bc6223ac4b0ab28347c62331593544411d4bb9. Chain 2 (Bitcoin): anchored in block 958779 (2026-07-19T21:08:39Z), 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/ES47F2501808.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x5e223fd129c6d2ee2b502625f0d38bb475fcf27302f6a2cce28d895c39ac11ce. Chain 2 (Bitcoin): anchored in block 958686 (2026-07-19T06:43:29Z), 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/ES47F2501811.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xb843ecb2079daed36d2909fbfce69427c7fa0461fec65c9674a0cdcfadcad754. 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/US3DF2530226.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xcbde3cdd86bf8c8ad592717c9f6edb4cddcad68fa0e4c05607b5e1e98092b5f6. 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/SGB502259209.