Cozza is a surname of Italian origin. Notable people with the surname include: Carlo Cozza (c. 1700–1769), Italian painter Carmen Cozza (1930–2018), American football and baseball coach Cataldo Cozza
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 0xb9b80e01992e892c61bd0e54af28308a448fe731707f901f6c9cac0774c6f63c. Chain 2 (Bitcoin): anchored in block 953423 (2026-06-12T21:20:00Z). Bridge: the canonical record inside this Bitcoin proof contains the same CopyrightID. Verify: download https://artists.proofprofile.net/proofs/artist/262c6cee-d6d7-4cb2-8952-5cffea205794.json and https://artists.proofprofile.net/proofs/artist/262c6cee-d6d7-4cb2-8952-5cffea205794.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 0x063b15a7466807b61bf3b4027920c1fb7495abf45cf8ee510f54e506f4c51358. Chain 2 (Bitcoin): anchored in block 956826 (2026-07-05T19:27:56Z), 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/QZDFP1920372.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x37eaeb99201cc877690bd7ae5ce596163a846669f4dc133c92bc556d26a5b59b. Chain 2 (Bitcoin): anchored in block 957697 (2026-07-12T11:22:18Z), 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/PLC062235084.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x0bb69f90c991745e482da655dd1caa2716674d28cc9664cc3f59216df10521ea. Chain 2 (Bitcoin): anchored in block 958700 (2026-07-19T08:09:50Z), 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/PLC062382264.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xf16faf0e97ec3174c4ce6f0ac20ece1a97b70e67a03f623c9ddcdf04c61e2835. 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/QZDA72447225.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xfd210d5efc64e76dd33ca82bd5a6343bdaeb4c423ec8028f0bb00a53bc29cb95. 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/QZDA72447226.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x8376a756ea899b3ed53690d6421898a435b278d0c6b7cbb1b4456130b0127757. Chain 2 (Bitcoin): anchored in block 957699 (2026-07-12T11:51:06Z), 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/QZTAT2401776.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x6e0eb31cfd0609234aa67c25be92ffcc44a382ec02900377eedc4cb0422fe6fc. Chain 2 (Bitcoin): anchored in block 958069 (2026-07-14T21:37:55Z), 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/QZES72599478.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x244204f9206c63085660dae8a35acb93a605a95ebf54861b21d4a4026a350a4d. 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/FR2X42516517.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xf031003476890d2f0e26379efa523da39812efc89cf0f9b27cf24a60e4789bdc. 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/PLC062415653.