DEZ refers to: Deir ez-Zor Airport, airport code Deutsche Entomologische Zeitschrift, a peer-reviewed open access scientific journal diethylzinc, a reagent in chemistry
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 Note: an OTS proof may carry multiple Bitcoin attestations; OTSBitcoinBlock is the earliest confirmed one — a later attestation inside the proof corroborates it and is not a mismatch
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x8a69967b3af71ff532e0fe08a7332d02b9070848f56cccc0e80fe0f144d81a3c. Chain 2 (Bitcoin): anchored in block 953407 (2026-06-12T19:24:56Z). Bridge: the canonical record inside this Bitcoin proof contains the same CopyrightID. Verify: download https://artists.proofprofile.net/proofs/artist/d815ae94-0394-4769-87cc-3d3a804a55c6.json and https://artists.proofprofile.net/proofs/artist/d815ae94-0394-4769-87cc-3d3a804a55c6.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 Note: an OTS proof may carry multiple Bitcoin attestations; OTSBitcoinBlock is the earliest confirmed one — a later attestation inside the proof corroborates it and is not a mismatch
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x329ebba2628ae30696fa20ff85488dc71446b073327c59c0ef259d3e9dab5481. Chain 2 (Bitcoin): anchored in block 960259 (2026-07-30T12:51:24Z), 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/USYBL2201480.
069 (feat. P.Rico, Dez, Tony Blancka & King Dre)
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xc2b6a29344aecee56d8ece386d203f90a19fca137782832cfd7e3c0023d103ff. 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/TCABQ1315964.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x0a25f9d6c2f14171734f38e2584ed95f1f1f0ba3c530d6a38c7c1b84c1b26b7c. Chain 2 (Bitcoin): anchored in block 960368 (2026-07-31T08:26:41Z), 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/GBFBC1100729.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xa53980da268d2e02a12f189e36ce397ca0372a6aa71dafbd4b5f77378061bedb. 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/TCACY1707883.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x24f0ebc696e5d3f8793da6bf9a0da960e501e62675446a211695560e27b247e0. 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/TCACO1699134.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xb66c49d1e183823e550fd67a01cd73bbc0af865d52e64d8c0791ab5ce36ba37b. Chain 2 (Bitcoin): anchored in block 957073 (2026-07-07T18:39:05Z), 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/TCACO1699145.
Ain't from Bama (feat. Bubba Sparxxx, Jawga Boyz & Dez)
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x542bfb4a67520923b41250a86bb0f805e91ba2f478b1e43c92b89dd4a086dc21. 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/TCACB1494684.
We Try (feat. Jawga Boyz, Bubba Sparxxx & Dez)
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x6b06d306409d86316d8caa9e536f59b687cd941b3ca708e8bcccb5fad1aa694f. 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/TCACB1494689.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xdca0daaf7c4154179635131139127c17ebaf9907fcbfab5a5df3d9a669e649e8. 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/TCACP1698050.
My My (Rebel Remix) [feat. Moonshine Bandits & Dez]
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xbd7cd41ba81bd1e3104dbb6ac3366403db213c004bb1bdee0cf63dba29b87671. 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/TCACP1698054.