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 Note: an OTS proof may carry multiple Bitcoin attestations; OTSBitcoinBlock is the earliest confirmed one — a later attestation inside the proof corroborates it and is not a mismatch
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x19caf356da9fb1d0079ffc2440de9e9b5001312faf7d876f40f63b45a3fc8757. Chain 2 (Bitcoin): anchored in block 953879 (2026-06-16T02:57:35Z). Bridge: the canonical record inside this Bitcoin proof contains the same CopyrightID. Verify: download https://artists.proofprofile.net/proofs/artist/09a8dfc6-0592-465e-96fe-d5b1d9321cb5.json and https://artists.proofprofile.net/proofs/artist/09a8dfc6-0592-465e-96fe-d5b1d9321cb5.ots, run `ots verify -f record.json proof.ots` (https://opentimestamps.org).
Kopf aus, Herz an, spür, wie es geht (Motivation)
Stell dir vor, die Zukunft wird wunderbar
Unter Unserem Himmel (ein Märchen in Schwarz, Rot, Gold) – EM 2024 Song
Wenn der Weg schön ist, frag nicht wohin er führt
The magic is in you (Du trägst die Sterne in deiner Hand)
Wenn der Weg schön ist, frag nicht wohin
Never stop growing (Folge deinem Herzen)
Dance like nobody's watching (Tanze als würde niemand zusehen)
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 Note: an OTS proof may carry multiple Bitcoin attestations; OTSBitcoinBlock is the earliest confirmed one — a later attestation inside the proof corroborates it and is not a mismatch
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x1dfb2d301c5114bb047df636654a81043ed5f4828310648099872115d1747c22. Chain 2 (Bitcoin): anchored in block 958526 (2026-07-18T09:09:53Z), 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/QZMEP2564830.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x397b02dacf21631c21764f2bd00a233b437e2997a3bcabe9771bb1803ed456ab. Chain 2 (Bitcoin): anchored in block 958935 (2026-07-20T22:08:19Z), 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/QZZ7W2590932.