Lauri Antero Johannes Mertaranta (born 17 January 1956 in Hyvinkää, Finland) is a prominent Finnish sportscaster and TV personality and former elementary school teacher. Antero Mertaranta is best kno
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 0x2ef1175c51adab438871a6ef3e2e9cd2a0183b1f6cf5ec08a9960d690b3d610f. Chain 2 (Bitcoin): anchored in block 953770 (2026-06-15T09:50:11Z). Bridge: the canonical record inside this Bitcoin proof contains the same CopyrightID. Verify: download https://artists.proofprofile.net/proofs/artist/a673eb57-e853-4b0d-9b0e-bc26ecaaaab9.json and https://artists.proofprofile.net/proofs/artist/a673eb57-e853-4b0d-9b0e-bc26ecaaaab9.ots, run `ots verify -f record.json proof.ots` (https://opentimestamps.org).
Kiitorata (Rata,Rata,Rata) [feat. Antero Mertaranta]
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 0xa17802ee02a9f54b81a1ded447ae1587d5066c8e5d9fb51ff2c19cc63847cbcf. 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/FIHC82400007.
A-Studio Live! - Äärimmäinen katastrofialbumi
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x695dbb9528880b4348be853517132ca42dec8e69961cec445522d617218b30bd. 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/FISMC9900041.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x20b4c4de8820da7976ca719bd52c43e4076951a8885d6c3d971a943b78c346e6. 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/FISMC9900048.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xea864f9011ae24dfd0d530eb8f4649825a5ab73ab24c06d3dd5beb693fe398e9. 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/FISMC9900042.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x0a245496eaf3f5c61df458ebcff9d94c1d49d1f5ff62dbd87ee057ce2a6c00e1. Chain 2 (Bitcoin): anchored in block 956375 (2026-07-17T00:00:53Z), 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/FISMC9900056.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xb2924d9fec6c34e0b09ba02c40d3b540d4d2d2046493013bf1a678e510fb2b86. 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/FISMC9900058.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xa5d9ab5f2a758ba5ec1812507192dc3db5bc3d2a274d1d002e38f7d7df70e382. Chain 2 (Bitcoin): anchored in block 956312 (2026-07-02T05:09:12Z), 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/FIBAR2300299.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x695dbb9528880b4348be853517132ca42dec8e69961cec445522d617218b30bd. 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/FISMC9900041.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xf9592325375d91a21dd08630f4f9ebd06da411a9146ff704075713d09637d481. 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/FIUM72500072.
Taivas varjele! (feat. Antero Mertaranta)
Taivas varjele! (feat. Antero Mertaranta) - Radio edit
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x218054739536cd18825429f726ebb0e6d0fb2df60f278eda63a1055bf91ee3f1. 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/FIBAR1100120.
Löikö Mörkö sisään? (feat. Antero Mertaranta)
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xabfeeb3de93ebd0658e63c72e98e3db74e07da7a9c22f1234485508e3e81b439. 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/FIWMA1900156.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x90d29de8b8e7fa127c944df9f4f66e6f907e79ed5e0ed8ccab0f468902d9974f. Chain 2 (Bitcoin): anchored in block 956351 (2026-07-02T11:38:34Z), 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/FIBBA9400048.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x0f93d46880d9b3943e404e97608a41b158837bc835cf5bb5f814ba7992bdd40e. Chain 2 (Bitcoin): anchored in block 956312 (2026-07-02T05:09:12Z), 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/FIT5B2400006.
Lohi määrää - Tiesto and Guetta Goes Hertas Remix
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x4181cd91dbce08254821a2d8654a195dc8fd6f5bbc293be95b20f29be6ee40a5. 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/FIT5B2400004.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xa544af0a50f26841b84e185a04c6180e82ddf0b49f202e931b5bda4d27b85399. Chain 2 (Bitcoin): anchored in block 957124 (2026-07-08T03:53:27Z), 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/FIPT60200005.