Diafrix are an Australian hip hop duo, Azmarino (Khaled Abdulwahab) and Momo (Mohammed Komba), which formed in 2001. Their music mixes funk, soul, reggae and dancehall. At the EG Awards of 2009, 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 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 0x1ed016d3dac3c13cc41a8ed18185b47f9f780f1fd7685fa1f6ff1f02b84b03d4. Chain 2 (Bitcoin): anchored in block 953791 (2026-06-15T13:40:30Z). Bridge: the canonical record inside this Bitcoin proof contains the same CopyrightID. Verify: download https://artists.proofprofile.net/proofs/artist/dfbaacc5-bfbc-46e7-9c7d-867e756b69ea.json and https://artists.proofprofile.net/proofs/artist/dfbaacc5-bfbc-46e7-9c7d-867e756b69ea.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 0x25707af621373ac20336e69cca88154db9321a26af6a796eac83520a51bd4f7c. Chain 2 (Bitcoin): anchored in block 958905 (2026-07-20T16:14:34Z), 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/AULI00957670.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x74f8183618fc3f167ca9bfb20aa3b2267baeccf28609ad485380e57901fabd70. Chain 2 (Bitcoin): anchored in block 956545 (2026-07-03T19:59:51Z), 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/AULI01176530.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x231407196503e0a386d35f9e7d06312aafc1cbc95b413d739935c95eb690f2f3. Chain 2 (Bitcoin): anchored in block 958812 (2026-07-20T03:24:09Z), 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/AULI01284180.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x1fa672bc600c59f9986c8a732e76974c08c42a90a56f0139dee8a8502b47f2a9. Chain 2 (Bitcoin): anchored in block 960138 (2026-07-29T19:35:34Z), 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/AULI01281070.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xfc49602120c0ce2edb74500d29fb7a55ec0e6bc61963ced40fc2525367378b0d. 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/AULI01284100.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x845fdc3e20c0c8ef36050b284127af2badb9a3f0ed229bba7f34f0abb8b66c51. 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/AULI01284110.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xdf577e8e3673f6dfa832c91477fff6c30440e8862a72f861352b20375852a35d. 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/AULI01284120.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xfb855f7af70d05fd4c95090913356c3b0abfbe954837fcc1bd0381e6914f9869. Chain 2 (Bitcoin): anchored in block 960273 (2026-07-30T15:42:38Z), 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/AULI01284150.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x74f8183618fc3f167ca9bfb20aa3b2267baeccf28609ad485380e57901fabd70. 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/AULI01176530.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x624d46cceac999f11f0f79e178422d7ca40a10722ccf185f02177c1a21eb8943. 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/AULI01284170.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x1fa672bc600c59f9986c8a732e76974c08c42a90a56f0139dee8a8502b47f2a9. Chain 2 (Bitcoin): anchored in block 958086 (2026-07-15T02:55:47Z), 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/AULI01281070.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xfc49602120c0ce2edb74500d29fb7a55ec0e6bc61963ced40fc2525367378b0d. Chain 2 (Bitcoin): anchored in block 956545 (2026-07-03T19:59:51Z), 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/AULI01284100.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xbfb8ecd1a06c5359addc49d087decd6c5cb7d083b2fcec65ffdfe3d604c1c26b. Chain 2 (Bitcoin): anchored in block 959159 (2026-07-22T17:48:40Z), 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/JPD731500229.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xd974e8ae6f09a40a5dda256c7a6c1560a0dcb553c863205cc8fdb4bd47a4d0be. Chain 2 (Bitcoin): anchored in block 957064 (2026-07-07T16:43:08Z), 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/AUH121000006.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x30a0ae029d4dd036fc35523d02a2a4678e4736b6c15f2606b2f04a7a129ba638. 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/AUEF00500365.