{"copyright_id":"0xa1cfb3ba6aac2bebdf9cae56ffb2982f19a8e3c9cbbabcdd0c1b3c5c68573fca","name":"Spieluhr und Co.","registered_at":"2026-06-12T13:19:14Z","symbol":"NIM0309636","token_address":"0xedfa85c12d1fbbae78d616c4e5c83f89f02dea91","type":"artist","uuid":"f03c5dc1-6c2e-44db-8894-2b13b544a0d2"}
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 0xa1cfb3ba6aac2bebdf9cae56ffb2982f19a8e3c9cbbabcdd0c1b3c5c68573fca. 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/f03c5dc1-6c2e-44db-8894-2b13b544a0d2.json and https://artists.proofprofile.net/proofs/artist/f03c5dc1-6c2e-44db-8894-2b13b544a0d2.ots, run `ots verify -f record.json proof.ots` (https://opentimestamps.org).
Gute Nacht - Spieluhr Melodien (Die schönsten Schlaflieder für Baby und Kleinkind)
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 0x78af2e57da470907659435385753b3b05f20a3cc230cdf877f7d27401e5a059e. Chain 2 (Bitcoin): anchored in block 957603 (2026-07-11T20:26:17Z), 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/DEF161625004.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x9b58bc6453a12c8ce3631fff305111c6bf4596c94367b0f8cfb500744d4bfc84. Chain 2 (Bitcoin): anchored in block 958060 (2026-07-14T20:39:42Z), 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/DEF161625011.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xc15da56da568ecf7736bb2338616a77470fd64f0550b4ec33280ad1d97861068. Chain 2 (Bitcoin): anchored in block 958060 (2026-07-14T20:39:42Z), 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/DEF161625013.