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 0x808b89c52dfbb182db74d125cc461fc7a4ab5d1db186211cdaf40d09c2a182c8. 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/75af1e06-831d-4bb9-9e41-8f83bee858b8.json and https://artists.proofprofile.net/proofs/artist/75af1e06-831d-4bb9-9e41-8f83bee858b8.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 0xd15858284de741023d7bcf6cc2dd225cf754e2e1391d64d53029508e7b2eabba. Chain 2 (Bitcoin): anchored in block 958607 (2026-07-18T21:01:11Z), 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/ES06F2301156.
Terminei Com Minha Ex (feat. Mc Rick & Mc Leozin)
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x586365c0145ce6558f7dadaff384359ae0a7d4cc8a21e9b14c5a891f4f134c5e. Chain 2 (Bitcoin): anchored in block 958690 (2026-07-19T07:14:39Z), 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/ES06F2401396.
Eu Que Sabotei X Trepa Trepa (feat. MC Nerak, Mc Maginho, Mc Mr. Bim & Kakaxi No Beat)
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xe1b45bcd1dab0e63f55f671e9bd5d86050cefc79825ca34f8d5277f49b435a55. Chain 2 (Bitcoin): anchored in block 958700 (2026-07-19T08:09:50Z), 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/ES06F2401535.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x7a1432cabfde2a617f1f78222b8cecb3256e0089bce9cd96774556aef3c1add3. 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/QZYFZ2435270.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x4b536db7f26d6b6f7f0356c49bdfaac9d7a01988886b34939cc738d7dbaa8f60. 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/ES06F2402199.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xb62b04dfeb580d05663746af477368f58d92a50da3033c99917595b3272fd073. Chain 2 (Bitcoin): anchored in block 958351 (2026-07-17T02:38:05Z), 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/QM3DF2410699.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xb8b8b807cea29f7cff30726e5c67a76f5a41b906718bff63508002f8e83b4b09. 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/US3DF2507845.
Agora Vem o Carnaval (Arrochadeira Remix)
Tou na Espera do São João (Arrochadeira Remix)
Tou na Espera do São João (Arrochadeira)
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x741fb69a85827e9daf93bb8fe532106e6147b8da0f320a21fefcd6ea13d6a414. 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/ESA112563406.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xe8b4405f2df5ac4f9b3a2657f6502ae7b473aa697831c531824fca7ab96e700a. Chain 2 (Bitcoin): anchored in block 958690 (2026-07-19T07:14:39Z), 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/US3DF2538192.
Ela é Solteira Não e Puta Não (Remix Arrochadeira)
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xac137be6fd45db41f8fda852ca78efc9126d06283b56a4a268be19e4889d01a4. Chain 2 (Bitcoin): anchored in block 956826 (2026-07-05T19:27:56Z), 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/ES06F2503699.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x6190a5a5e6e3e8d86e1a742a9c80e0369a83bd06f2d5972eb4d410bb10588d81. Chain 2 (Bitcoin): anchored in block 956772 (2026-07-05T10:01:46Z), 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/US3DF2574576.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xdcce149adcde10302ab7f0cdaf67300bb7ce0695d6807b717a6f4f57ab3529a6. 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/US3DF2594073.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xf6933dc8b187390b5c58a13958800c53d2350e55140d8b450ca9e8db7896f962. Chain 2 (Bitcoin): anchored in block 958861 (2026-07-20T10:02:52Z), 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/USANG2515010.