Mez or MEZ may refer to: Mez Breeze, Australian artist Mez, American rapper Carl Christian Mez (1866–1944), German botanist whose standard author abbreviation is Mez Maz (Romanized: Mez), a villag
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 0x2385e028b84b36978b5afca39f63d47e9b6c2bc81d8847927dd5c0e3757fb499. 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/1a061381-894d-42af-b193-00bfc09a9ac3.json and https://artists.proofprofile.net/proofs/artist/1a061381-894d-42af-b193-00bfc09a9ac3.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 0x173c5aa00675691e6cf58a46b823c209ac444c6210361636aae166b88f0766d7. 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/QM4TW2498177.
Costa Rica (with Bas & JID feat. Guapdad 4000, Reese LAFLARE, Jace, Mez, Smokepurpp, Buddy & Ski Mask The Slump God)
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x5ea74961f71b77d3167105314936fd239b82101c940404088015b983e6dbb563. 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/USUM71912266.
Sleep Deprived (with Lute & Omen feat. Mez & DaVionne)
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x9092414429fb4561e54980b7741042de27d0a61cf8e1ef6bec142d779708accf. 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/USUM71912967.
Revenge Of The Dreamers III: Director's Cut
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x5ea74961f71b77d3167105314936fd239b82101c940404088015b983e6dbb563. 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/USUM71912266.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x9092414429fb4561e54980b7741042de27d0a61cf8e1ef6bec142d779708accf. Chain 2 (Bitcoin): anchored in block 953515 (2026-06-13T12:53:06Z), 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/USUM71912967.
New LA (feat. Anderson .Paak & King Mez)
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x643a60ddf21c3ec20fb8cb81fcc860c94145372cb0b4b8b95d150f62bdea5678. 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/TCACX1760902.
Passcode (with Ari Lennox feat. Buddy, Smino, Mez & Guapdad 4000)
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x2d9ac5f479525a93ecc2eeecc3e5b17ab5ba7a261ba51364efee703983ecb711. Chain 2 (Bitcoin): anchored in block 953515 (2026-06-13T12:53:06Z), 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/USUM72000117.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xf03aaf587e2092e03de05e5ca766d4d7ba5c41c2ae05173c5205a23d6160b44b. 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/USUM72302640.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x224490e069a9d0106c0469c202f191e33b54717f7e34e4ffca177ee3dd22982b. 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/USUM72302536.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xcd01af1a793d4ead75fce16d2498fec586a6bb65c1495a06df16fbf9bd911284. Chain 2 (Bitcoin): anchored in block 953515 (2026-06-13T12:53:06Z), 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/QMTND1100154.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x72b90bf3608c1234171d9d0a49900d16045896de828d4079a362765c275ec6ec. 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/QM4TX2453589.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x17b0f3ea94743b329ac7dc10c42bb0d475f5c23051c8e3faa815f2d04caf2951. 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/USYBL1700574.