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 0xf28f9457c8e2e45d343a0e87c6c104f7a3f22a3bd11517fd1c00cd5574c66a8a. 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/b98ef187-d06f-4387-ac44-063020ed3529.json and https://artists.proofprofile.net/proofs/artist/b98ef187-d06f-4387-ac44-063020ed3529.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 0x84e39f3c43bb7000ef75a496a05eb72e08b143078b135578bad04a52da09bcfc. Chain 2 (Bitcoin): anchored in block 956748 (2026-07-05T05:55:59Z), 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/QZFZ31933119.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xa3bf228065651ac053b23a76b39af85726c9dac75b2624088cba5193f4f85c78. Chain 2 (Bitcoin): anchored in block 958846 (2026-07-20T10:43:10Z), 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/QZHN72013505.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xa7e1fa6786708f668ff29e5cbf80ac73705f0bac8699997082cd0fb10f4f5342. Chain 2 (Bitcoin): anchored in block 956476 (2026-07-03T09:04:44Z), 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/QZMEP2275412.
Vầng Trăng Khóc (Moon Tears) - Hardstyle
Racing Into the Night (Yoru ni Kakeru 夜に駆ける) - Hardstyle
Tình Ta Hai Ngã (Divided Love) - Hard Vina
Đừng Hỏi Em Ổn Không (Don't Ask If I'm Okay) - Vina Hard
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x1879d5b6228825c3ccd884a314dc2ca006e09988323281c2db14f1d079cf6b1d. Chain 2 (Bitcoin): anchored in block 957025 (2026-07-07T10:59:31Z), 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/UKRVV1900363.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xc07484aad7552ea416507675717cacb4555cc3e93416c64c53999321d5234818. 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/HKJ962415477.