Aaro Teikari (1988 – August 2025), known professionally as Ex Tuuttiz, and formerly as Tuuttimörkö, was a Finnish rapper, music producer, and DJ. He started his career in a group SNTC Family with Crac
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 0x60320f46cb611d686a4e36d5b85206e694dec8fa98407838c580e55541fcce53. 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/f6f7e002-7b90-41ff-b41c-457793deff0c.json and https://artists.proofprofile.net/proofs/artist/f6f7e002-7b90-41ff-b41c-457793deff0c.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 0x0e6c8628b8103a877f807d8ef07812892d2168ef6bb4888dc7ab3827627a2099. Chain 2 (Bitcoin): anchored in block 956551 (2026-07-03T21:18:05Z), 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/FIMRR1300001.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x4feb44a9b03073d62ece2f6382d1b7719135ad723b0d699b730e465d146f411f. 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/FIMRR1300004.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x9eb906946c11457602790a6ccc40b2fd439d900a7752edcc214f76ea8551c679. Chain 2 (Bitcoin): anchored in block 956551 (2026-07-03T21:18:05Z), 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/FIMRR1300006.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x32e3e5a928797f30b63656ee4c1de34bb9cf989dc0e0e626d04b7295ae638350. Chain 2 (Bitcoin): anchored in block 958716 (2026-07-19T10:15:55Z), 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/FIMRR1300010.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xa73ca1dd995083a7d4af99081ef340cdaf6a60a62048eb6d6bdabc85245fe4cc. Chain 2 (Bitcoin): anchored in block 958196 (2026-07-15T22:29:52Z), 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/FIMRR1600217.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xb9496c73041e6016bbeaed92e5c943892711a9b0708a04130d06f9d75363ef2e. 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/FIMRR1600218.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xda5c321ee86ffb32839ece66c65e04a152a2bd74c09901eca8f000eb9c60b6e1. Chain 2 (Bitcoin): anchored in block 958142 (2026-07-15T10:09:30Z), 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/FIMRR1500032.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x99112a9ce0007fc571dc37ce39fb687871a814b72367f294ba8516c47a540d61. Chain 2 (Bitcoin): anchored in block 958196 (2026-07-15T22:41:36Z), 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/FIMRR1400243.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xa9cc2cfdc19c78efc169cbd943d384be23f4400f2a1e499b37189ddaa99ad26b. Chain 2 (Bitcoin): anchored in block 959024 (2026-07-21T17:14:27Z), 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/FIMRR1600221.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x5a730cc405fa097657b61080ca392797731b94247b0443df8acf7697b51381c9. Chain 2 (Bitcoin): anchored in block 958853 (2026-07-20T11:53:48Z), 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/FIUM72000152.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x5f331d5e61833260e42309603342efcf44e25be6934bfe8118ff40ce1d0579cf. Chain 2 (Bitcoin): anchored in block 959010 (2026-07-21T15:40:26Z), 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/FIUM72000156.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xe0afa513ae9e4367a902b44c7fccaaccfd79b4c8e3c73a586df005dd0ab99a6e. Chain 2 (Bitcoin): anchored in block 958415 (2026-07-17T12:50:13Z), 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/FIUM72000160.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x52921cbba7137a94f9c0e357bb6b6a8c462892a1b8d9f8389180857e898b4d8a. Chain 2 (Bitcoin): anchored in block 956551 (2026-07-03T21:18:05Z), 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/SE6XY2338047.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x5bc70d71bb18788313643049ffa25412447f4e770e7170398f6cdf1e2b1ebaf6. Chain 2 (Bitcoin): anchored in block 958700 (2026-07-19T08:09:50Z), 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/SE5BU2394384.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x3dce95c58ac77af633bf4dc9c2b153361766ba63f9a45db1380356c526c34468. Chain 2 (Bitcoin): anchored in block 959047 (2026-07-21T20:39:17Z), 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/SE6SA2371947.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x5caf3420775cb42267f7a1fe84b485a5a2ab5509ed2fbeb7ada0936580dcd5ed. 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/SE6SA2390558.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xfe1169b1dab8325ab6e5d9ce428655b1e3569560e32c72b2872c4cbefe98b870. Chain 2 (Bitcoin): anchored in block 958770 (2026-07-19T21:22:45Z), 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/SE6TI2323949.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x7ae0ec9b16fc16bce49a82c6823a632eebba72a8d38e1d6a9c3f9f2ce33bccbc. Chain 2 (Bitcoin): anchored in block 958380 (2026-07-17T07:07:02Z), 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/SE6TI2344522.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xf106f7d0db7ed8b881dd1d6c489698fa76e347e77d03a056f9e7bbcb860dd9f8. Chain 2 (Bitcoin): anchored in block 956725 (2026-07-05T01:12:41Z), 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/SE6TI2393335.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xf5a6043d8c36f9c7fbfed8ab61aac3018b0b95b8acb0d67878d91533ff921429. 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/SE6TI2361272.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xf8ffc861e4fa8f9e46689d914bfad671d2fb453368195a76a58124dc4bbb944d. Chain 2 (Bitcoin): anchored in block 958942 (2026-07-21T02:17:38Z), 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/SE6TI2327782.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xd8ff5d3d532ad5611be0e74f9fe34e6ccfd6027c2355801e8b3608c9f09aa85d. Chain 2 (Bitcoin): anchored in block 956891 (2026-07-06T07:16:32Z), 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/SE6QE2345949.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x958236c5c049c03adc361de41288469ddd67084d0c14d28edc8b5f1a75196a63. Chain 2 (Bitcoin): anchored in block 959061 (2026-07-22T00:22:27Z), 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/SE6XW2377456.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xdee0a998abaf413607b5febc6420f42816c5b34b66575c6f19b0854ef48a8457. Chain 2 (Bitcoin): anchored in block 958324 (2026-07-16T23:44:22Z), 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/SE6SA2378183.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xb2dfb1a9921c0fcebc95b8360d3f39fae8277b1736b06bc87676c9add5cb83c3. Chain 2 (Bitcoin): anchored in block 959152 (2026-07-22T16:23:52Z), 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/FIACQ2500022.
Mixtape (feat. Ex Tuuttiz & DJ Marcello)
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xd5ac6f54c6965987ecaa8e4297896d82bc055dbe8dd0bee3603a988540995575. 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/FIKLW2400023.