Maustetytöt (; ) is a Finnish girl group consisting of sisters and . The band's trademarks include a laconic and serious-looking performance style. Originally from Vaala, Maustetytöt listen to tradi
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 0x5083d7d449c1d4f4d2579b6957ebe60b1b19ef0fe7fda8e15fdc56abc58e154b. 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/aae4cfe7-8698-41f9-8186-6f8a5d2d1ae7.json and https://artists.proofprofile.net/proofs/artist/aae4cfe7-8698-41f9-8186-6f8a5d2d1ae7.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 0xfa395d422f44c8b10e72ddf4753f06fe3cc067833d6c858ddf9c25511a86f38e. Chain 2 (Bitcoin): anchored in block 958245 (2026-07-16T07:50:57Z), 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/FIITA1900002.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x52fc5c3b3aba8d1d0075b7c256becc8efedf24e84b819ccbf161be95510d097b. Chain 2 (Bitcoin): anchored in block 958673 (2026-07-19T05:38:28Z), 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/FIITA1900003.
Jos mulla ei ois sua, mulla ei ois mitään
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x4d149a5fe3c28d4053b30be463394f212f2f978e8f06fbbca17b2f0d54d57ac7. Chain 2 (Bitcoin): anchored in block 958448 (2026-07-17T19:49:21Z), 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/FIITA1900012.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xe071d2d61364f9abff623325c7f4883538e5f7e4068edc32e85d7fe903530a2a. Chain 2 (Bitcoin): anchored in block 958796 (2026-07-20T02:59:43Z), 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/FIITA2000013.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x3038d79a1a6703f691cc5b17523f4c3096b961881ea892ddac26c960d3a8f7c0. 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/FIITA2300054.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xa14129044841570b75b5374bffe3c18ed5bb640249789aa2f03ec582041d4bde. 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/FIITA2300052.