Rachel Kramer (born in Rotterdam on 9 August 1980) is a Dutch singer and the runner-up of the second season of the X Factor in the Netherlands. Her first single was a cover of Rascal Flatts's "What
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 0x9eb9ad698f8f22d20bb7d6bc5721039b12b25fc77553ef7091639274894c5153. Chain 2 (Bitcoin): anchored in block 953408 (2026-06-12T19:28:13Z). Bridge: the canonical record inside this Bitcoin proof contains the same CopyrightID. Verify: download https://artists.proofprofile.net/proofs/artist/e45eb835-126a-4b0d-a097-29a45249544c.json and https://artists.proofprofile.net/proofs/artist/e45eb835-126a-4b0d-a097-29a45249544c.ots, run `ots verify -f record.json proof.ots` (https://opentimestamps.org).
Dr. Dancefloor (Rachel Kramer presents Dr. Dancefloor)
Coat Of Many Colors (Better Than Ever / Aflevering 3 / Live)
Coat Of Many Colors - Better Than Ever / Aflevering 3 / Live
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 0x03fa1cbc4ed6a77a24ffb68a53300116b4950f58ae04c9c7eb905bd3a998c018. Chain 2 (Bitcoin): anchored in block 957671 (2026-07-12T07:35:31Z), 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/NLUM72101142.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xfd4bf5ed3f00bbe59300c0f009be6544d5db6a46e08eaf9787591e1825327832. Chain 2 (Bitcoin): anchored in block 957118 (2026-07-08T03:20:19Z), 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/DEZ621300073.