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 0x3784d305bcba19bd591a278f34966c6f87a9686e06d12479b2eccb3404363edc. 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/a3dd6a60-f749-4b3f-ab65-5f37ff2e48dd.json and https://artists.proofprofile.net/proofs/artist/a3dd6a60-f749-4b3f-ab65-5f37ff2e48dd.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 0xb341cdac84f9bb5318dc535777999cd95d2f7c85ff93aae80e0bcf0afee8b4c6. Chain 2 (Bitcoin): anchored in block 957046 (2026-07-07T14:04:01Z), 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/ITI020100318.
Ebatule' - Ennio Styles' Samba Funk Remix
Acid Jazz Brazil (Nu Jazz, Funk & Soul with a Brazilian Flavour)
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x2f7622a1d3620f122a15d8081fca145d98923db8ef41b7cc7d7bb1bd04c80628. Chain 2 (Bitcoin): anchored in block 957124 (2026-07-08T03:53:27Z), 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/ITI020400162.
A New Born Day - Belladonna & Delexy Remix
55 Jazz House Classics (The Best of Jazzy Deep Soulful Chillhouse Tracks)
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x90db576c4bda4cb65c2e15f5e1d9aa33b1560767a55b2158200329902b0e1d83. Chain 2 (Bitcoin): anchored in block 957124 (2026-07-08T03:53:27Z), 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/ITI020800017.
You To Me Are Everything - Belladonna The Thing Remix
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x1d5377edd38f32eb89469ba8de1eb5f6f6aabae6975585e546d9487ac32ef491. Chain 2 (Bitcoin): anchored in block 957124 (2026-07-08T03:53:27Z), 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/ITI022300364.