Heikki Johannes Silvennoinen (27 April 1954 – 18 December 2024) was a Finnish musician and an actor. He was a guitarist and a songwriter in several notable Finnish bands of the 1970s and 1980s, and al
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 Note: an OTS proof may carry multiple Bitcoin attestations; OTSBitcoinBlock is the earliest confirmed one — a later attestation inside the proof corroborates it and is not a mismatch
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x2310768a4709ae49e44af7abf096b6b6b6c724f168dad3be5fabd829f831fd46. 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/1d100cf6-eae4-48c3-8025-ccde9427538d.json and https://artists.proofprofile.net/proofs/artist/1d100cf6-eae4-48c3-8025-ccde9427538d.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 Note: an OTS proof may carry multiple Bitcoin attestations; OTSBitcoinBlock is the earliest confirmed one — a later attestation inside the proof corroborates it and is not a mismatch
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x7967e669ce887b1828fe61349560c887cf505165f265b89ed821beeec302e3db. Chain 2 (Bitcoin): anchored in block 958060 (2026-07-14T20:39:42Z), 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/FIWMA9200202.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x7a4b3be03e5eeae7e20ae997d38cab4b17da32914fc6aba7d023cae7f225fc8c. Chain 2 (Bitcoin): anchored in block 958547 (2026-07-18T12:44:05Z), 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/FIWMA9200203.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x4d895af2b62b9ae2423501d98829813d4ad6399351f25d2a1400b35e2ca00df3. Chain 2 (Bitcoin): anchored in block 959105 (2026-07-22T06:33:30Z), 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/FIWMA9200204.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xc3df2249ec9ebfe5158e167db7c6563f3872a93a6d44710580e7599a0e11d779. 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/FIWMA9700024.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x8633734a7fc6257e2787ce1dd3faa6f9887bfecfdf1076a954d89570c973db42. Chain 2 (Bitcoin): anchored in block 959058 (2026-07-21T21:09:36Z), 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/FIWMA9700026.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xb8412bf591fa8978b120d3404417ce3d458a9645aab9c765e3e0126818de620b. Chain 2 (Bitcoin): anchored in block 956634 (2026-07-04T10:04:33Z), 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/FIWMA9700027.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x509b3fd9587f771fdc74187dfd378ace26e197d07dde1ad2253779a4edb3825c. 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/FIWMA9700028.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x0ca28accfcaf60fd6ff8ec0f7633bcce3dcccfcb7fc00b5f11a4f8396a94b18d. 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/FIWMA9900053.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x2d3df69e30fef81d2ae8b4f02bbb59f2802deeb4c6bd8b57bd88c6d0b33b85e4. Chain 2 (Bitcoin): anchored in block 958331 (2026-07-16T21:55:37Z), 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/FIWMA9900066.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xd39190564d318ba93041264c9420f4fe1ae6985adf5bc7c5548719f6bcb47ecb. Chain 2 (Bitcoin): anchored in block 959043 (2026-07-21T18:40:26Z), 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/FIPAG0300001.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x1bd7e779a966a9fb7bdae80b5bd1967c2fdab3aa3782b86179f53573682369e7. Chain 2 (Bitcoin): anchored in block 958771 (2026-07-19T19:27:18Z), 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/FIPAG0300002.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x952b1f752806384e1d8e944103d3bd061e227cd0295d890e031fdbd9c654fa4c. Chain 2 (Bitcoin): anchored in block 959103 (2026-07-22T05:56:21Z), 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/FIPAG0300007.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x2ee8e86c9785d111fddcf36e9d6d590388084b136b748ac119e83e72598cc9b8. Chain 2 (Bitcoin): anchored in block 959114 (2026-07-22T08:41:42Z), 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/FIPAG1000001.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x528249138862ee43b3dc311ca04beecd5c20b4eee37c01fd3645990d09aebb5e. Chain 2 (Bitcoin): anchored in block 956634 (2026-07-04T10:04:33Z), 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/FIEMX2300050.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x4ace602cf6478e4617ec5dedc39c3c6488203d1c6188676a74db552596d2ddd1. Chain 2 (Bitcoin): anchored in block 958388 (2026-07-17T09:14:21Z), 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/FIPAG2100002.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x5d5432b946c586086f66a04895e2e95eee67052c6cb356f5fe5242686593eb62. Chain 2 (Bitcoin): anchored in block 959023 (2026-07-21T15:22:58Z), 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/FIEMX2300051.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x50f7c70145bfcb8753e97aa14d81c7e94f63b1500c56a234dd7b6700ab11c6ca. Chain 2 (Bitcoin): anchored in block 959052 (2026-07-21T19:50:27Z), 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/FIEMX2300052.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xc1a4e58bcba4d0c1968fbfa7b26a396bc3dfc3c5fb6c1d22b0194de2b70a3bd5. Chain 2 (Bitcoin): anchored in block 960334 (2026-07-31T02:19:15Z), 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/FIHHR0390029.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xc1a1abb4dba57e9582b65ca2df4d696b7fab5f8291b086f47db12ecbbc59e7d8. 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/FIHHR0390028.
Pispalassa jytää - Juicen & Coitus Intin parhaita
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xef69a79f5d07e57c84fcc1be31dfaa8f5d2798cba0f0306dc9ef8024c8595a2c. Chain 2 (Bitcoin): anchored in block 960273 (2026-07-30T15:42:38Z), 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/FIALR1000007.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x8c7c92374c6b941a0f92c1fa9a742c6c9a37b1c3b74e60d1ef0581c3149566f4. 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/FIWBB1600043.