thumb|250px|Gemitaiz performing during Wind Music Awards in 2016 Davide De Luca (born 4 November 1988), known professionally as Gemitaiz, is an Italian rapper. Besides his solo work, he has collaborat
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 0x637df3d4de9f975e36db2ddeea4fe85d6c68ec9080882a64248a4853690b0c77. 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/b30e6dac-38fb-4206-9790-abda3b457a78.json and https://artists.proofprofile.net/proofs/artist/b30e6dac-38fb-4206-9790-abda3b457a78.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 0xa03854f2b3c6d2c29f1947e09b4db07994418bde1c52457627bc6a1f5a1278a0. Chain 2 (Bitcoin): anchored in block 953520 (2026-06-13T13:32:09Z), 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/US23A1534479.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x1a588e4a6fa2fb31a53c5c5a5473d39f72584d3563b9d761cd8d15a3e819ceed. 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/ITC6Q2400009.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x8001986a9ff9216bff5832252ec33a04a63c2ce44085396569480be0a4ef017f. Chain 2 (Bitcoin): anchored in block 953513 (2026-06-13T12:47:07Z), 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/QM4TW2391679.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x9e1b328a49abd37bff6cacba5cb74e216fe3d03a5bc45a2f52be3c41246c2bfc. Chain 2 (Bitcoin): anchored in block 953513 (2026-06-13T12:47:07Z), 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/ITYG92300043.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xd67952a353312c5b2acec9391cc78b8ece627090cecbd2a658bdf10f66c600eb. Chain 2 (Bitcoin): anchored in block 953513 (2026-06-13T12:47:07Z), 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/ITZI71800087.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xc287e5c6e6439e95109acd814f5629e321aaea2541383ebba1330fe086c25830. Chain 2 (Bitcoin): anchored in block 953513 (2026-06-13T12:47:07Z), 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/ITZI71700021.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x14b88fc30b294c17cae1bf519cd30e9edb9559e53f0bc167f15b69bf645f61fd. Chain 2 (Bitcoin): anchored in block 953520 (2026-06-13T13:32:09Z), 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/ITDF42300011.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x041bf895b1c541f4082bf8eaec067dd12776f0005aeda30e6344c0181641c7bc. Chain 2 (Bitcoin): anchored in block 953520 (2026-06-13T13:32:09Z), 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/ITUM71300614.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xe9a22429a58ac78761588bd51286b9d19eb94982b5c56835709460ca6c9771cb. 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/ITZI71800099.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x9e1b328a49abd37bff6cacba5cb74e216fe3d03a5bc45a2f52be3c41246c2bfc. 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/ITYG92300043.
Ulalala (feat. Gemitaiz) - 2024 Remaster
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xa0cac3995bdb8cbe084802032b524aa8173f436ec1ba9542af9f451d9a929ede. Chain 2 (Bitcoin): anchored in block 956302 (2026-07-02T03:30:09Z), 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/ITV022400002.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xa03854f2b3c6d2c29f1947e09b4db07994418bde1c52457627bc6a1f5a1278a0. 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/US23A1534479.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x9be1fb4d2dd87eecf07057155da6918a6f11606d0bb718aa2e77212ebb3e04a4. 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/DGA072189065.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xa1bb6ceac779415eafd19bc41f2c070f24adbbda07b6c750915d17cbf006d292. 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/ITB001900636.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xcd7c742458ccd5f03af2602fa585431733b19786d5ebe2a8b4d38826bb2eb16a. Chain 2 (Bitcoin): anchored in block 957124 (2026-07-08T03:53:27Z), 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/ITWLJ2400009.
Fuori di qua! (Stories) [2022 Remastered]
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xf22cbd2b94955ed572c305c942802f0e3c4d24d93731de4ebbc606120ba17e4b. Chain 2 (Bitcoin): anchored in block 957124 (2026-07-08T03:53:27Z), 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/ITDJ62100012.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x63f375813de9d889fce72e78d63e9b88f75a4c5098d7298c5fbaa96750c96b94. Chain 2 (Bitcoin): anchored in block 957118 (2026-07-08T03:20:19Z), 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/ITUM72400425.