Andrei-Ionuț Ursu (; born 16 January 1993), previously known as Wrs (; stylized in all lowercase), is a Romanian singer-songwriter and dancer. He represented Romania at the Eurovision Song Contest 202
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 0xf3ed47033d21d38106b584ef372b81c0e9de6f7e5e7f40d12220308372bef70d. Chain 2 (Bitcoin): anchored in block 953423 (2026-06-12T21:20:00Z). Bridge: the canonical record inside this Bitcoin proof contains the same CopyrightID. Verify: download https://artists.proofprofile.net/proofs/artist/d28f7ba9-488f-43c1-a524-b390732d7f1f.json and https://artists.proofprofile.net/proofs/artist/d28f7ba9-488f-43c1-a524-b390732d7f1f.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 0xeec55bcac20e5f6fa1a7978e50d3d983ec9d1409f7935dbd38ff1ad1a367b3fc. Chain 2 (Bitcoin): anchored in block 953536 (2026-06-13T17:25:41Z), 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/ROGRA2300639.
Llámame - Eurovision 2022 - Romania / Karaoke Version
Eurovision Song Contest Turin 2022 (Karaoke Version)
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xf17094c933059f2725b0c90f2b6a920a37d507039a35af08339a6262ef3a8a94. Chain 2 (Bitcoin): anchored in block 956304 (2026-07-02T03:55:08Z), 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/DK2DY2200098.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x6f1267d0f5d4289b9547f1520cc73b8d160fb8c56715b358d3e86bcbdc1e8c4d. 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/ROGRA2400138.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x08f58ef033009dc7924e5adae484f8cc58090a937a1d5e056bd69c358a73c931. 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/ROGRA2101609.