right|thumb|Distribution of the Friz family in Italy The surname Friz derives from Fritz, diminutive of the German name Friederich (Frederick), originating from the Old Germanic Frithurik, composed o
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 0xc990ec7b2d0f425f693eeabff526ecc99766e166e4b067b2cf6f8134647dba00. 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/1d04c45d-5121-46e0-aa1a-2341e5e74a02.json and https://artists.proofprofile.net/proofs/artist/1d04c45d-5121-46e0-aa1a-2341e5e74a02.ots, run `ots verify -f record.json proof.ots` (https://opentimestamps.org).
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 0x30d69779b58b16c6b2d996e07db15b47358d559d051fb9504f03f0ead076e20b. Chain 2 (Bitcoin): anchored in block 958746 (2026-07-19T18:01:28Z), 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/QZK6H2555604.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x6422153fcc6e30dad7a600df1535cb7bd1211381fc97b428113952e381c9ad6e. Chain 2 (Bitcoin): anchored in block 956738 (2026-07-05T04:47:21Z), 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/QZK6H2555605.
YEAR 2023 AD: NUKES ARE NOW LEGAL (HOSTED BY DJ SMOKEY)
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xb63ffefcfca3752bff8d3eaa17e9e27c551a488ca0d0fcdf0a90c26d2e565c90. 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/QZSYP2330241.
BASED NEGATIVE SQUAD (HOSTED BY DJ SMOKEY & SHADOW WIZARD MONEY GANG)
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x4d849e8202f84ff69296fefbd1d04ce12956a7cf82174ee64295a7eb1c1ff4a8. Chain 2 (Bitcoin): anchored in block 953528 (2026-06-13T15:41:10Z), 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/QZSYP2340225.