thumb|Hirviniemi performing in 2011 Aku-Heikki Ilmari Hirviniemi (born 5 December 1983, in Riihimäki) is a Finnish actor. He is well-known for his role as Urho Hietanen in the 2017 war film The Unkno
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 0x4ee90869496e0046b1ae14628edd7d24a90d23336522c050f5100ddb35c517e1. Chain 2 (Bitcoin): anchored in block 954066 (2026-06-17T08:11:48Z). Bridge: the canonical record inside this Bitcoin proof contains the same CopyrightID. Verify: download https://artists.proofprofile.net/proofs/artist/387e9adb-ff71-46f5-b8d6-b8c5632c7437.json and https://artists.proofprofile.net/proofs/artist/387e9adb-ff71-46f5-b8d6-b8c5632c7437.ots, run `ots verify -f record.json proof.ots` (https://opentimestamps.org).
Hahmo Shake (feat. Marja Tyrni, Timo Harjakainen, Usko Eevertti Luttinen, Samppa Linna)
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 0xa2f2e0df1a7e65b41348f55210eeceec62c6802ea855887c4e53085b9cf67028. 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/FIWMA1300254.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x23227303fa5028b537fc1b4280126a6b07dc0908c23d10c7daaa9c4034c66a23. 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/FIWMA1300255.
Vanha pappi hekotteli - Vanha nainen hunningolla
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x3b8940bfcd969a67f975d7a80b5dc83a5477f49f092427c0fd7ac8a23f9cd154. 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/FIWMA1300256.
Pallivahan toisella puolen - Maailman toisella puolen
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x9bfd0edd506322c4a29e7702ca85ce7b569a1594bc74dd07222ec8be74f033f0. 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/FIWMA1300257.
Puuttuva palanen (feat. Karim Z. Yskowicz)
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x851b8e94c008db4412d9d1d7873032f35ecda5c75ccfbdd8838c83324964a94f. 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/FIWMA1300258.
Usko Eevertti Luttisen elämä ja teot - Alle lujaa
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xf07d32e22073ee7d81bf5b708f780937e856938e94cf32b6f5f8565f4ddf0b6c. 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/FIWMA1300259.
Ny rillataan viimeiseen asti - feat. Timo Jutila
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xddb5e4e7dac199727265c0c52e53ba60d30905989b3d814db294b9678dc0b190. 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/FIBAR1300058.