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 0x405e391c714369ae991c87cba1e32e455ab1f7c42f814cf0cad3812d699829cb. Chain 2 (Bitcoin): anchored in block 953742 (2026-06-15T04:47:56Z). Bridge: the canonical record inside this Bitcoin proof contains the same CopyrightID. Verify: download https://artists.proofprofile.net/proofs/artist/9732cebb-883e-45b5-b056-5192768633ff.json and https://artists.proofprofile.net/proofs/artist/9732cebb-883e-45b5-b056-5192768633ff.ots, run `ots verify -f record.json proof.ots` (https://opentimestamps.org).
Čas kolísky: Mäkké uspávanky pre spánok dieťaťa
Pokojné uspávanky: Melódie pre krásne sny detí
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 0x0d943680480a6158e263df5740943be1c4f49e18f2124c038ea4e961cc750e63. Chain 2 (Bitcoin): anchored in block 957892 (2026-07-13T18:21:16Z), 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/UKR4Q1983010.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x6085aacd1eefa7e9161162a175db7bbdee5af13f432869e3e7f1e32559fec5eb. Chain 2 (Bitcoin): anchored in block 956656 (2026-07-04T14:03:39Z), 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/UKR4Q1983014.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xdd00ecf5265072d1cd84a3c83298213fe234badd2070156933ae14da4d4b41d1. Chain 2 (Bitcoin): anchored in block 958857 (2026-07-20T12:07:08Z), 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/UKR4Q1983016.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x5b9397ace413bd6c53bb3fd6af5132dd7ff29e39bbbaaba4d932d27f4c164290. Chain 2 (Bitcoin): anchored in block 956856 (2026-07-06T01:25:57Z), 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/UKR4Q1983018.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x5d6d3b3840c4831f8ad85c61c0d33e589a4b7ed7ea00456ec537842422cdb67e. Chain 2 (Bitcoin): anchored in block 958601 (2026-07-18T19:27:02Z), 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/UKR4Q1983022.
Utkané z detských snov: Pokojné melódie pre ľahké zaspávanie, nežné uspávanky pre mamičku a bábätko