Luise Gruber (born 27 June 1982 in Wels, Austria), better known by her stage name Saint Lu is an Austrian singer and songwriter. She currently lives and works in Berlin, Germany. Recording career Lui
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 0x4f940945d2472627c0c924b5ded068996efcbb9e67c6c347ae5cfaeb9b8599fd. Chain 2 (Bitcoin): anchored in block 953827 (2026-06-15T19:59:56Z). Bridge: the canonical record inside this Bitcoin proof contains the same CopyrightID. Verify: download https://artists.proofprofile.net/proofs/artist/f156a4d6-f902-44ab-9474-836f57bc55e2.json and https://artists.proofprofile.net/proofs/artist/f156a4d6-f902-44ab-9474-836f57bc55e2.ots, run `ots verify -f record.json proof.ots` (https://opentimestamps.org).
Don't Miss Your Own Life [Special Bundle 1]
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 0x772024d82b6ef4a67b7ba7230b6d849eaf4985c7825ea7f9af570f03e912dcc5. Chain 2 (Bitcoin): anchored in block 958211 (2026-07-15T23:24:33Z), 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/DEA620900311.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x09d1c4aa68d513174b594268aea4fc994406b40523e7b7a47f9efa5161df1630. Chain 2 (Bitcoin): anchored in block 958942 (2026-07-21T01:50:56Z), 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/DEA621200657.