Kaija Kärkinen (born 9 September 1962) is a Finnish singer and actress. She represented Finland in the Eurovision Song Contest 1991, with the song "Hullu yö", finishing 20th. Kärkinen was born in Sod
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 0x6c7e21b6255f0f433b352c5895959770faf60f4074826f2379a488d309c65894. Chain 2 (Bitcoin): anchored in block 953778 (2026-06-15T11:57:35Z). Bridge: the canonical record inside this Bitcoin proof contains the same CopyrightID. Verify: download https://artists.proofprofile.net/proofs/artist/aa9a970d-4c75-4d1c-bf9b-a136eff21b35.json and https://artists.proofprofile.net/proofs/artist/aa9a970d-4c75-4d1c-bf9b-a136eff21b35.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 0x80dd95df5563456c443c67a0411e2fac4f006dd5aefe2bb5d3080333e769a06a. Chain 2 (Bitcoin): anchored in block 958157 (2026-07-15T15:43:20Z), 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/FIFMF9100164.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xdbda3e1aee0e801532f23ce5cc3a59b24091ce739a34db9b004d9432091ac721. Chain 2 (Bitcoin): anchored in block 953515 (2026-06-13T12:53:06Z), 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/FIARA9400090.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xa0da310458717135c831374339c448600eea3e763cfaac99d952f6d19c795f9c. 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/FIARA9400091.
Kyynelhelmet - As Tears Go By; with Ile Kallio
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xae089eab8e2ccc9b59824949f0a8e4018519708b07d10c16aa62534ff95e94d7. 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/FIARA9400092.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xee9c82653d79de3b16f6ac9c2d5c9110dc24581c8da5f6240540fb28ce24ab24. 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/FIARA9400094.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x4760d103f5127b1495ab832c09459ae327812f1332c3522ca0c359ab75fadb21. 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/FIARA9400096.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xafa42b2f55c74b848525aeaee231a1cace19b7962ce9e340a3d56e735680a261. Chain 2 (Bitcoin): anchored in block 957122 (2026-07-08T03:39:04Z), 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/FIARA9400098.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x834b0a36492353cdf9911c51c1c5c7b7f95a50d05ed4dc2cd6c9229d6306fbd3. Chain 2 (Bitcoin): anchored in block 957122 (2026-07-08T03:39:04Z), 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/FIARA9400099.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x25e7b82b97ce72398902894c0ba10ace035419bfc452541e4670d4984a6fd786. 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/FIARA9500184.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xbdf5cbf6dd0fea6d465cd0ea54548d13e58928897bdddb9ad0fce9be4a23196d. 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/FIARA9800131.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x5daaaaab4dd2556c861abc79ce7d4fbd823756bd5365040aefa6f2736e369177. 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/FIARA9900006.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x2483c331c003001f17371eb5059319da1ea94a80b42222edb57893c4df7ff698. 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/FIARA0000075.
En voi unohtaa - Parhaat vuosilta 1991 - 2001
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x1c1f02be90cb17718264a64172de2b0651e832d4df65dab01283eb378e3f1b6d. Chain 2 (Bitcoin): anchored in block 957122 (2026-07-08T03:39:04Z), 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/FIARA0100132.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xac43453ab7bb3961584f5617e3c13b414b636cdda61954c8655a2604b194aa89. 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/FIARA0100129.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x0fad776faa01128621061ee2c7ff5e5d37aaede2e52e73ff716ad9c7dcb265b7. Chain 2 (Bitcoin): anchored in block 957122 (2026-07-08T03:39:04Z), 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/FIARA0100133.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xa0da310458717135c831374339c448600eea3e763cfaac99d952f6d19c795f9c. 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/FIARA9400091.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xdbda3e1aee0e801532f23ce5cc3a59b24091ce739a34db9b004d9432091ac721. 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/FIARA9400090.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x604f4b889749cce08a8325005f8de7e9b200526c16de419a4e3c66ea5d124682. 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/FIARA9500182.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x5848eab7bf344b342f872cdb731a73148a44a14e9c1d80936ead1e7fb31ccea4. 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/FIARA9500183.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xd1b868951202cbcd60cd1ba80bad82e9a9caac36a4489b8b4622ea0fd24a786e. 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/FIARA9700066.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xbdf5cbf6dd0fea6d465cd0ea54548d13e58928897bdddb9ad0fce9be4a23196d. 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/FIARA9800131.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x2483c331c003001f17371eb5059319da1ea94a80b42222edb57893c4df7ff698. 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/FIARA0000075.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x5daaaaab4dd2556c861abc79ce7d4fbd823756bd5365040aefa6f2736e369177. 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/FIARA9900006.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x25e7b82b97ce72398902894c0ba10ace035419bfc452541e4670d4984a6fd786. 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/FIARA9500184.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x23b1f60ed613cb32fc8718c19b0833f3948834ec6750453d82b624bae2e6ac4b. 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/FIARA0400021.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xc7b84ca7d19c4c94447b62dcde9d6f4a9e310265a696a7c3848ffac7f9c1bc42. 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/FIARA0400022.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x5f94f4244ab2e1d5ba7204b46a8d486300e9f081255d9ceeb2352284b6e39f8c. Chain 2 (Bitcoin): anchored in block 957122 (2026-07-08T03:39:04Z), 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/FIARA1100242.