Desmond Méndez (born 6 April 1980), better known as Charly Black, alternatively known as Charly Blacks, and originally known as Tony Mentol, is a Jamaican reggae and dancehall singer, selector and sin
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 0x007b7ebdfd33ac6a6c0bbc2bcc91480766d5ab4eb65a53a5935b6b2b24d31702. 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/3600cc4c-d46a-43a4-bfdb-8ef5b7b7281b.json and https://artists.proofprofile.net/proofs/artist/3600cc4c-d46a-43a4-bfdb-8ef5b7b7281b.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 0x0a1fca8455578ed351fa7b95aca50a604c7b7690dad349f71b0e358dc996d143. 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/USSD12000448.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x4263149c5143eb6824b689c4fe07d3cac0a6acc56a814d39672b1b663808ffbc. 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/USUM72111773.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x52da788af326fd762937f9e1b95fde071feaa64988640f777ac4cb999f4878ae. 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/USUM72102275.
Jessica (with J Balvin, SAINt JHN, Charly Black & J Perry)
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x9bfc6577f13eb15a3cd1faff07839d1c77fa1dddc826577894d9291e070ca12f. 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/USUG12305494.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x4263149c5143eb6824b689c4fe07d3cac0a6acc56a814d39672b1b663808ffbc. 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/USUM72111773.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xe154c86505d43531749fc623ac66c2ee3780465a23bd4a62e0f71da5e1c7f84f. Chain 2 (Bitcoin): anchored in block 953536 (2026-06-13T17:25:41Z), 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/USUM72021162.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xbb5e72b48dcef772497928c132bc6b6bb2f160826eb3b92aefe77cb928408a59. 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/QM4TX2175261.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xb44b976ecc1a3fe8d0f1721dc05ddd12a7e64706e94dd72c50367e37fe175723. 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/QZNJY2343160.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xd66ba89ec09f47a776f42771e5e996746f92d1f5fb69ea141884b3a5d8bf4f9e. 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/NLAM41700092.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x4d74ffe435819c2fe725971a92480d8557a950a730f6d7566885b0007de10211. 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/USQY51618443.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xc5c6b5dc3a744414dab08c834a8a5e629c508134e10749d94bdd69530b207596. 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/USQY51618444.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xc97bdacfefbe932f0058c0052f8ea85fc6c102a567b6064f35afb8d93117ad3d. Chain 2 (Bitcoin): anchored in block 957043 (2026-07-07T13:52:39Z), 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/FRX452276181.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xc97bdacfefbe932f0058c0052f8ea85fc6c102a567b6064f35afb8d93117ad3d. 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/FRX452276181.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x014704235fd48a42438a080ee9c3f474eb16a6c7b73ea31aff40c3e86f331f20. Chain 2 (Bitcoin): anchored in block 960222 (2026-07-30T07:48:45Z), 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/QZNJY2343161.
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 0x22e153b5106d79898fb1598e63970d97bfa44ba4eba5ef510d0ad767a8df8525. Chain 2 (Bitcoin): anchored in block 960284 (2026-07-30T17:23:26Z), 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/QZTPX2252169.