Raul-Stig Rästa (born 24 February 1980) is an Estonian politician, singer and songwriter who, along with singer Elina Born, represented Estonia in the Eurovision Song Contest 2015 with the song "Goodb
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 0x2c84a2cff758bed79c4b21d53f1d59250dcf98c112bbb10b34e057b8f62ce1d2. 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/ad3d486d-7000-411e-a451-cf38dd2dd96f.json and https://artists.proofprofile.net/proofs/artist/ad3d486d-7000-411e-a451-cf38dd2dd96f.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 0x66640380b5f2f58a96bc59a0672e0e909d0266bc79d70f6578c135781e9dabbd. Chain 2 (Bitcoin): anchored in block 956560 (2026-07-03T23:28:02Z), 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/EEDD11500001.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xd01b0a93d3990993a514ce86eedfb1cf45e9a81b8a9c2bad402a571717871933. 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/EEDD11700018.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xecdc87b022ed60a75645b6d82b2b68bbdd0271b5834454f1c00c8545833bb47e. Chain 2 (Bitcoin): anchored in block 956725 (2026-07-05T01:12:41Z), 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/EEDD12000013.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x284d7f6da343c3ac7fac123717b784837d16888734cd3b488e05cb5034acc4df. Chain 2 (Bitcoin): anchored in block 958924 (2026-07-20T21:12:56Z), 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/EEDD12000015.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xdce2820b36f830dace875812f07bae3a7cb3b95a550c4fa49b7ac0f15b31ae70. 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/EEDD12100051.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xd8ce1c67b75294a31d2caaba93b1edc7b19bba7317ba072599a2991a9774d6c5. Chain 2 (Bitcoin): anchored in block 958977 (2026-07-21T06:27:23Z), 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/EEXD12200001.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x0993aac29d50b3f8e0eee1a020c7e7f83bc601111cf14b87fd28df3215350900. Chain 2 (Bitcoin): anchored in block 958342 (2026-07-17T03:35:59Z), 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/EEDD12500049.