Blaq Diamond (stylized BlaQ Diamond) is a South African Afro pop duo from Ladysmith KwaZulu-Natal. They met in 2010 on a school trip where both participated in a music cypher in the school bus. They
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 0xe58d84affc5f380cc656988884d39faaafabbeb4c1c432c995c350b8c38b7dcb. 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/f4c4c9e7-5f1a-4b31-994d-0d6d4269a6e5.json and https://artists.proofprofile.net/proofs/artist/f4c4c9e7-5f1a-4b31-994d-0d6d4269a6e5.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 0xb012175a2f415e3b39847280d70f8f83881a4acef6d85d7522a55cf685e2e6aa. 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/ZAB7A1700189.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x96bdf7a7a7196fee5f3415b49e8069d24dd58380bb27ed7a6b068508d1a0d2df. 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/ZAB7A2000448.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x3be4528eb8eaae029e018ff9fb0c461ced4a4c58b05b9a336d09a1be085fa785. 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/ZAB7A2000449.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x0466bb0a210b69ceca1e035a778876a8f97895c9e925b3ade5440de69e2431e7. 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/ZAB7A2000450.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x303a94d185fa13984d1c734df56319417857ea570cbb5c61ff609f1c523dd0df. 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/ZAB7A2000451.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x309368da04efeb3e306ae1501468a533ea8f638dfdc533325a39892e918a80a7. 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/ZAB7A1900433.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x6ac0da956f1850a94ac0140e3fb3528b1630b51ec6ee3b2fae15423008e1cf2f. 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/ZAB7A2000453.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x9a46644a1186e5b552af6dc5a3157c3578f5fae6b14695eaf67145016b70341b. 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/ZAB7A1900439.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xf8313a4d85ee96fd7ba16d9f17ef85a54a29142f6f9d15a286ad02d2c365154e. 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/ZAB7A2000455.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x6b0bb58e021d1b8af2bd6124f5db8c2a3f87f7004df12724b7d85f908143bca8. 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/ZAB7A2000456.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x628dffafa3dc1ce2ad26ac0da5d597067dae07738ef817ac2bb909b5a610a298. 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/ZAB7A2000457.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x6b92188a673f03c5efcac26a353b540b1100f50743e299a623811a8e2b9e77a9. 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/ZAB7A2000458.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xe93273775a6b24c3b24403ab0b99b1b8975510275f2d3e87c4903c4ba067957a. 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/ZAB7A2000459.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x71073c1a245d8b631554e10ef6845973724244d9fd08f8b02b88b1c493eb063f. 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/ZAB7A2000460.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x56a526f6614f8e553553f8166f135ac2b06e19cf9f9e74472f258842fee36b1f. 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/ZAC012201198.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x11e08e528536d6b9ccad22cb9bccf5a7eeb1f82675ef2cc96a85a112fee42ccb. 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/ZAX011900013.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xdb259ec7bc65b41659884f17353a45aaae2e9b815a6a50a5e8c21c355c8fe09b. 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/ZAB7A1900436.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xffd289f61f918f7566856b4b3f98d2e12c86a0b48839981fcf0e76060ddcb3fc. 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/ZAB7A1800291.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x2c81ebe80459c00f1b8eaa6cdd6d66a300906f9258bef79e24402309da7fc605. 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/ZAB7A2100523.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x7921d2c8e0938503e0e5d092c9bda4ce0646562fa6b5e1ee0488d2c515e099fe. 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/ZAC012301195.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x8acbd3b2e2196b86d065c662eab747ee78ecc35859585c68a379ff166294845c. 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/ZAB7A2000483.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x622c02f9a86064bda3decf938dd8c70b3d417922c7da448900ecb4f74c7639e0. 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/ZAB7A2000466.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xdb1904d878110d864f39ddc659d7c957411d3d946554e461ded8d8236f4d8a20. 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/ZAB7A2000493.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x1a00d94550939bcc0fcdc20c7308d1c6bff0386f3b4ffd69a17c6ff88771c4c7. 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/ZAC012000329.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xfc4674f60efec628aa535887c93a1704d8ee5824a3b457be54f795f386f7e279. 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/ZAB7A2100550.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x29357381fb35fb0908f275a7eca32e3657a4028c79c0764533f6d8d67183f29c. 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/ZAB7A2000468.