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 0x00689aa8570c3aa3e9744981db47a45f817b023c6187f574a4c197f13957a3dd. Chain 2 (Bitcoin): anchored in block 954066 (2026-06-17T08:11:48Z). Bridge: the canonical record inside this Bitcoin proof contains the same CopyrightID. Verify: download https://artists.proofprofile.net/proofs/artist/785742be-d676-4a5a-b009-b545302a7626.json and https://artists.proofprofile.net/proofs/artist/785742be-d676-4a5a-b009-b545302a7626.ots, run `ots verify -f record.json proof.ots` (https://opentimestamps.org).
Äckel70 (Special Instrumental Guitar Version)
What Are You Waiting For (Slowed Down Remix)
What Are You Waiting For (Speed Up Remix)
DJ Sam Light Up The Scene (Melodic Hardstyle Remix)
DJ Sam Light Up The Scene - Melodic Hardstyle Remix
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 0xd0cf8a318bcfbb9108fcf63935e944ed117737cd89ade0f5964d41a8fea90fff. Chain 2 (Bitcoin): anchored in block 956772 (2026-07-19T23:55:27Z), 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/QZK6G2530628.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x8fad4f9d61349f44960450acb6b82d7b239bb46166acdb3afea1e553b50c50b3. Chain 2 (Bitcoin): anchored in block 958489 (2026-07-18T04:13:26Z), 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/QZMEM2562547.
It's You (In French) [Atmospheric Guitar Remix]
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x3b709f695b4aedeadeba6acc9f94fee08793c862f9331f026792e78b04d4052c. Chain 2 (Bitcoin): anchored in block 958376 (2026-07-17T06:41:00Z), 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/QZMEM2560589.