Jukka () is a common Finnish given name for males. History Jukka is an old variant of the name Johannes, a biblical name spread over to Finland through Sweden with the introduction of Christianity
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 0xae5687035f7ab7e4e998114b73fa1a7325ff25847d780f2c9c82e64d1914362b. 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/574cc68c-9e9d-472d-90aa-7bbe1c623a59.json and https://artists.proofprofile.net/proofs/artist/574cc68c-9e9d-472d-90aa-7bbe1c623a59.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 0xc66dca18d581ecb59169715a62fad476ee500b157bbd6b9a49e19db5849acb72. Chain 2 (Bitcoin): anchored in block 957819 (2026-07-13T07:53:33Z), 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/FIVDC7900011.
Lasten toivekonsertti - 50 suosittua lastenlaulua
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xcee047e72dd4ac67c588469080f3a043f8fcc15239bfe3cb4e582c26f8eebe4f. 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/FIRCR1301801.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xfaa844a6c05259fe24c6a97a01ddb03d47166f4e3381810ee5c1ebc9aaba873f. 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/FIRCR1301829.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xd5dc568903e866b44f47b9cd604caccbfd0db7836e79ea9db694c075c736217e. 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/FIRCR1301830.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x7b6f79d655dc4376c06f60ea3af28e32330edb2343a40b399fe894e9766b08e1. 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/FIRCR1301806.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x7e1af08ea7ba4facbf479fb5df5050dbe0b93b7cabb621fa9c0f1b423d33de31. 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/FIRCR1301831.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x9d1918598a1cf40e6b797ec0291a98550ffffd131a0e3122fcde881df95faa92. 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/FIRCR1301807.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xaa6f0c197ada297d4a389e1ae417a21c3b655a4f08ce1be0dd98dab61023d38f. 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/FIRCR1301834.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x949fc79760a9e4a2069653b61377ba1fb95300c47255833ef2f2787e46674041. 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/FIRCR1301835.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xe8349bd6d6ab0263987a7d4dbe9cfc5f8b21ec6c71ccee8c551d955e55a68d64. 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/FIRCR1301812.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x77acf66478f289247fd60a11979f7c71b84310914192c03e29646753afddd70e. 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/FIRCR1301837.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x18471ef55eb8b20e3384e89bddf73b9b2b39ca69b39b364d792496b9fd60c083. 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/FIRCR1301813.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x574f5d4121a38ae68c5ea7238db7a6d1c22b25ae1c05503e241f4ba526986e9f. 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/FIRCR1301816.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x8308d6664c6d9f9fd21f8a94c42ad2d4e6b53c4d06ad3c64323493c32f403da3. 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/FIRCR1301817.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x1f6c8decfb5979e97b62dd6ccb5864e28b0115299dd2aef816c1ea1ba7c44dfc. 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/FIRCR1301818.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x064f8ffd51e4e764830e7608c1341286caa4bfc4c1086ccfe79e04f078943ea3. 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/FIRCR1301822.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x46a0f9bff0b742671e941fdc1bb1afd4147838ca20bb384ccb165c71cb61007c. 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/FIRCR1301823.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x886f6966ee62b5965104235c3843a7efef30c265c5427dbd502854a9f3a82b0f. Chain 2 (Bitcoin): anchored in block 960144 (2026-07-29T21:09:47Z), 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/FIRCR1301839.
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 0xba1dec7651dde78ea5abafbd1a97e70366e415f91d0afde887f2d5d3180e6d93. 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/FIVDC8600001.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xecadb4858bfc9dd742187c9660f4198500df94af06968497c203041816b372f8. 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/FIRCR1301355.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x0742a3a3b6e568957566bea3405af23ef0fee606ca68e6082f3e6e508ac2271b. Chain 2 (Bitcoin): anchored in block 960144 (2026-07-29T21:09:47Z), 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/FIRCR1301354.
Mörököllit - 16 Kivaa Laulua Lapsille Ja Lapsenmielisille
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x18b7a590ff05d478a095c37a5ecda9d16e558e093afba013325b498538c71635. 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/FIRCR1300790.