Gert Kaasik, known professionally as Mäkki, is a Finnish rapper and DJ.Seiska.fi: Räppäri Aito Mäkki Tallinnan-laivalla: Näin bailataan! Biography Kaasik was born in Tallinn, Estonia. He later mov
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 0x02d8255232652c1a1707770c1be94dbf92e543470d3d174e8f2a73ae61b2bef1. Chain 2 (Bitcoin): anchored in block 953423 (2026-06-12T21:20:00Z). Bridge: the canonical record inside this Bitcoin proof contains the same CopyrightID. Verify: download https://artists.proofprofile.net/proofs/artist/dd3c4cc5-5d8b-4e56-8256-169479dcf80e.json and https://artists.proofprofile.net/proofs/artist/dd3c4cc5-5d8b-4e56-8256-169479dcf80e.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 0xb95b76b00cd54ca8def191c4334832b57239beb35730291f9181fb263d0b876a. Chain 2 (Bitcoin): anchored in block 956560 (2026-07-03T23:28:02Z), 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/FIMRR1400315.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xa882849b2f670a12be7a05570fba3b0be996f11db87ac8351e14d7232c63b783. Chain 2 (Bitcoin): anchored in block 956375 (2026-07-02T16:51:38Z), 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/FIMRR1300288.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xc16ca85191c08398a3b8c01480ae2a0603644768f6bfe13e231083893533b0b5. Chain 2 (Bitcoin): anchored in block 956826 (2026-07-05T19:27:56Z), 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/FIMRR1500037.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x7c2f8af37e18078e88b2574d73534e07519c53cdecf8bb01cfbb8d79c0437e0b. Chain 2 (Bitcoin): anchored in block 956484 (2026-07-03T10:47:44Z), 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/FIMRR1500038.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x40cae63f6af92ce83726c55c122a41cc5cf4edd0304f7cd092116c9e88e98ae5. Chain 2 (Bitcoin): anchored in block 956656 (2026-07-04T14:03:39Z), 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/FIMRR1500043.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xb55b29e6a101a2dbba695acabe8ae71b79c596411928e5afcbd16f6f92cf1170. Chain 2 (Bitcoin): anchored in block 958908 (2026-07-20T19:04:25Z), 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/FIMRR1500046.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x3f592142e13dd7558419447c391f8c84d72807d9d91e4eab3f212d2ebdc6520e. Chain 2 (Bitcoin): anchored in block 956772 (2026-07-05T10:01:46Z), 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/FIUM71600409.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x850c5d3b71d53e0db9517a42cab51abff75926eb6db94f3e82849615351dd1b1. Chain 2 (Bitcoin): anchored in block 958349 (2026-07-17T04:35:35Z), 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/FIUM71601090.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x60e9a8da869b4ca003f1961a031888e7c5c4a799dc4a2594263f8f44ed0dd089. Chain 2 (Bitcoin): anchored in block 958377 (2026-07-17T06:48:00Z), 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/FIUM71601327.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x8c1f7c2ea6afd8dc32c90e5156f9699beffc42546cd1d35ee4909f82298218f5. 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/FIUM71700502.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x037ce821fd6a632b0519d3fb207e9ae2254de4420468d67839d187d487c40320. Chain 2 (Bitcoin): anchored in block 956375 (2026-07-02T16:51:38Z), 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/FIUM71600408.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x632ab4be03991d87f55f342e3408a26e08219b85380ba80c157b9c755425fef7. 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/FIUM71700501.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x60e9a8da869b4ca003f1961a031888e7c5c4a799dc4a2594263f8f44ed0dd089. Chain 2 (Bitcoin): anchored in block 958504 (2026-07-18T05:41:32Z), 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/FIUM71601327.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xe859351c4ee6e32125639a1876723a3f2acd9a3f230181f77ef8f1843a62f491. Chain 2 (Bitcoin): anchored in block 956375 (2026-07-02T16:51:38Z), 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/FIUM71800590.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x92a4713d3728f8880cfb3a2675cba95ea635767f527f6b5d3015937d6d6d7d9f. Chain 2 (Bitcoin): anchored in block 958447 (2026-07-17T19:47:19Z), 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/FIUM71900083.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xd8f0877e17de4dfc725018a969c392fe972408d9fb09c31aee3a13a52f495250. Chain 2 (Bitcoin): anchored in block 956639 (2026-07-04T11:19:20Z), 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/FIUM72000125.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xd3171e5443259cf1fff10b7bb89f29a0640a50ac8cff5181cf5b2622a94736c3. 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/FIUM72200305.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xcb3d04ae80beaf37b290a391260f6b0d6cc1aae3e54346a9267789cae609cb3e. 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/FIBAR1800194.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xe7a81a760d7c849dd42ccb84072eb9365731743e1f558cdb83e2ab698d8dc054. 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/FIBAR1700143.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x22ef8adff9d49ed821c2c53e3426040b57315fd32d8e3949751c9e76049ab473. 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/FIBAR1600381.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x3d9350f9c55631859f5c718f06aa437187311f51c7ff3a452f4f086e070e5640. 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/FIWMA2300343.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x518f32a4030629e0fa7f86452c910f288a77060734d6ff2e49156bab9d95d0f3. 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/FIK2Q2100028.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xa48a4764728db5b57465c247b0b505e0c12a6d0ced95adab8429e1ac8e62c974. 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/FIKLW2100014.
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