Viljo "Vili" Vesterinen (26 March 1907 – 18 May 1961) was a Finnish accordionist and composer. Vesterinen was born in Terijoki. He studied piano and cello at the Vyborg Music Institute, but as an acc
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 0x84520affe965a02991805ad7635e8aac36e872227b88637f975f46905c4a03fa. Chain 2 (Bitcoin): anchored in block 954647 (2026-06-21T04:36:58Z). Bridge: the canonical record inside this Bitcoin proof contains the same CopyrightID. Verify: download https://artists.proofprofile.net/proofs/artist/d6ad17a3-fd10-43b4-888d-742a0bd56e55.json and https://artists.proofprofile.net/proofs/artist/d6ad17a3-fd10-43b4-888d-742a0bd56e55.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 0x3efd1cf6f333c5aa71f1cd7bfee3740300f1b8e7b5d3a7d4dcd261429b5c9b60. 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/FIFPS3900005.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xe79b4c60c81ee88ac9cc60055e72829ad38e7427d26aba13ceebeac7966022ff. 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/FIFPS3900001.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x718af5a9cc9721c70017caddbd3de7ebaaf677f9df4d837b3f6ca41c198ede39. 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/FIFMF1223649.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xc678fb66f2fe6f74c33718924cd979509455623fbeb5bc1abc7481f71daa6105. 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/FIFMF4200016.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xe79b4c60c81ee88ac9cc60055e72829ad38e7427d26aba13ceebeac7966022ff. Chain 2 (Bitcoin): anchored in block 957120 (2026-07-08T03:22:41Z), 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/FIFPS3900001.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x3efd1cf6f333c5aa71f1cd7bfee3740300f1b8e7b5d3a7d4dcd261429b5c9b60. 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/FIFPS3900005.
20 Suosikkia / Jenkat ja polkat / Vesivehmaan jenkka
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xe79b4c60c81ee88ac9cc60055e72829ad38e7427d26aba13ceebeac7966022ff. Chain 2 (Bitcoin): anchored in block 957145 (2026-07-08T08:56:20Z), 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/FIFPS3900001.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xe79b4c60c81ee88ac9cc60055e72829ad38e7427d26aba13ceebeac7966022ff. 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/FIFPS3900001.