thumb|Sebastian Knauer at Laeiszhalle in Hamburg Sebastian Knauer (born in Hamburg in 1971) is a German classical pianist. Early life and youth Sebastian Knauer, born July 29, 1971, is from an old-
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 0x9295f7133feed1bbc1bbb4468f33c5becb0f9a7e906f910264ee87f18cb37ab3. Chain 2 (Bitcoin): anchored in block 953758 (2026-06-15T07:48:25Z). Bridge: the canonical record inside this Bitcoin proof contains the same CopyrightID. Verify: download https://artists.proofprofile.net/proofs/artist/b14916cc-f1cf-45f0-a763-154540657c63.json and https://artists.proofprofile.net/proofs/artist/b14916cc-f1cf-45f0-a763-154540657c63.ots, run `ots verify -f record.json proof.ots` (https://opentimestamps.org).
Reading Soundtrack - Relaxing Classical Music to Read
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 0x3d013d72b7c226fdf35e92abb1e14c50e001ea110638c45b8598aea38137e57f. Chain 2 (Bitcoin): anchored in block 957120 (2026-07-08T03:22:41Z), 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/DEE861903693.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x50200771e2500a12a41ef291857f25fd0250674d1c448a3e686102741de0f851. 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/DEE861903690.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x3d013d72b7c226fdf35e92abb1e14c50e001ea110638c45b8598aea38137e57f. Chain 2 (Bitcoin): anchored in block 956312 (2026-07-02T05:09:12Z), 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/DEE861903693.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x3d013d72b7c226fdf35e92abb1e14c50e001ea110638c45b8598aea38137e57f. Chain 2 (Bitcoin): anchored in block 956891 (2026-07-06T07:16:32Z), 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/DEE861903693.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x3d013d72b7c226fdf35e92abb1e14c50e001ea110638c45b8598aea38137e57f. Chain 2 (Bitcoin): anchored in block 956889 (2026-07-06T06:56:49Z), 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/DEE861903693.
Movie Soundtracks & Filmmusik - Best of Cinematic Music
Instrumental Motivation Boost Soundtracks
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x3d013d72b7c226fdf35e92abb1e14c50e001ea110638c45b8598aea38137e57f. Chain 2 (Bitcoin): anchored in block 957124 (2026-07-08T03:53:27Z), 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/DEE861903693.