Kari Olavi "Kapa" Härkönen (born 9 April 1979), better known by his stage name Brädi, is a Finnish rapper. Brädi (pronounced "Braddy") has sung in Finnish and in English (the latter mostly under the n
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 0x636cb77741bb7635f1ddf5d662d933fbff8e4f2c93e62b0de2f0ea0f5daf0499. Chain 2 (Bitcoin): anchored in block 953423 (2026-06-12T21:20:00Z). Bridge: the canonical record inside this Bitcoin proof contains the same CopyrightID. Verify: download https://artists.proofprofile.net/proofs/artist/3c4e98dd-3425-498b-9ccf-2c364afa4763.json and https://artists.proofprofile.net/proofs/artist/3c4e98dd-3425-498b-9ccf-2c364afa4763.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 0x1e35e7d6bddb08561f6a670c9fb62256e5e1f32c5b8decd6f6ea68974c3974a9. Chain 2 (Bitcoin): anchored in block 958517 (2026-07-18T07:54:29Z), 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/FI5RR1000018.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x9f07285f927e313cd1d98ddb9a49b1dee8ec640c87293221012743772486a2c7. Chain 2 (Bitcoin): anchored in block 958736 (2026-07-19T15:43:13Z), 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/FI5RR1000022.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xb6c7ee5bd5078e260b4e79a46e76907d6b564e6468ca80bcb1bc5d2ed5443d6c. Chain 2 (Bitcoin): anchored in block 956375 (2026-07-02T16:51:38Z), 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/FI5RR1200016.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xed448d32f8d6d5933a02ccaaf446cafec578b6464a94c14ec2d5040ee7371056. 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/FI5RR1200014.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x610bcf93b97f3ac5d37ee85a5cdce14e40fac1760c0b7133074dda7342b0811b. 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/FI5RR1200019.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x3a8995b1f62a40cca9a8093c7dd412557b8fb47c85db1894109490ee9a9e9caf. 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/FI5RR1200020.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xb6c7ee5bd5078e260b4e79a46e76907d6b564e6468ca80bcb1bc5d2ed5443d6c. 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/FI5RR1200016.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x0f7a32daa8852ed265f3b99ab42646baadcb80ff21df35c5eb3e8ee93ea77725. 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/FI5RR1200021.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x0c9819b5671eb8db70142b1c66e3dff3d8ecfca3cb2aa909cb9481812df77cce. Chain 2 (Bitcoin): anchored in block 953520 (2026-06-13T13:32:09Z), 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/FI5RR1200022.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xf27103bd4abe8bad66d22a73f73085d2f0810c9a8f2e6859b049da6405a5e88d. Chain 2 (Bitcoin): anchored in block 956474 (2026-07-03T08:56:35Z), 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/FI5RR1400001.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xf27103bd4abe8bad66d22a73f73085d2f0810c9a8f2e6859b049da6405a5e88d. 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/FI5RR1400001.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xb0b415da2590b52d34b68c365572ef869fd714dd2c5f191037e5814f00d2b0cc. 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/FI5RR1400003.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xf779d1898e80bca877eec8dc7420cf6c3d0ecc6a1bbedb3a99100c0bcb99ca9b. 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/FI5RR1400002.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xf9945a50603fa90aea6fd8942c4f93cf40d1d2b5fc4ac5bd2e5795083426dc07. Chain 2 (Bitcoin): anchored in block 957075 (2026-07-07T18:50:38Z), 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/FI5RR1400006.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xd52270e6fab18db03ec05957b4abc1a5e17e876a22850e429d8ba9714ae2ed57. 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/FI5RR1400007.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xf779d1898e80bca877eec8dc7420cf6c3d0ecc6a1bbedb3a99100c0bcb99ca9b. 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/FI5RR1400002.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x5b9a7bdd02ed3018821bb2fc21fd2c4b4366b6f8c7510e2f4e8377ecffbe5b8d. Chain 2 (Bitcoin): anchored in block 958798 (2026-07-20T02:11:35Z), 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/FI5RR1500037.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x13b0f51d878ab2f67537eb286f74844887227534c4e5487793fa5794e18d5901. Chain 2 (Bitcoin): anchored in block 958749 (2026-07-19T18:00:17Z), 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/FI5RR1600016.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xc35ec0217a9f87ac8732c3e6800d9b6d7dade392cf9fcd3b87bbc8e006c97fba. Chain 2 (Bitcoin): anchored in block 958602 (2026-07-18T19:28:16Z), 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/FI8RU1700019.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xbbf6e059ca92d60f7a525c69a8ab7a5e58352da76176990a3e3cee64004a8384. Chain 2 (Bitcoin): anchored in block 958300 (2026-07-16T16:14:30Z), 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/FIK3E1900304.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xb22dd2892f590f5f85087ea47d873276977d0e6ae1494dd356c0b1419518729f. Chain 2 (Bitcoin): anchored in block 958180 (2026-07-15T20:41:11Z), 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/FIK3E1900315.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x0edddd61d205ce96469f3934947502bc14a6838f4aa98c83c91c750da2b1752f. Chain 2 (Bitcoin): anchored in block 956891 (2026-07-06T07:16:32Z), 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/FIBAR2000124.
Heijastin (Musiikkia elokuvasta Etsivätoimisto Henkka & Kivimutka)
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x0aae44582826fe7ff35cfe229b53bec7f8803db53ea9bdc138af380638f57764. Chain 2 (Bitcoin): anchored in block 957884 (2026-07-13T16:55:06Z), 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/FIBAR2200086.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x10bb409905930be9423332cf9579d82c41c29ee0f0fc49d75aacf47ee88184b7. Chain 2 (Bitcoin): anchored in block 956551 (2026-07-03T21:18:05Z), 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/FIBAR2200295.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xde8d5d77508b4525fec83cc617dc4f742ec36780081f0db6bec25a924cc62f9c. 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/FIBAR2300124.
Kortteli (feat. Aste, EKI JA RAY & Becki)
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x6f0c0d86f533d0e7aff37e255032d9de7f7bf76793f9a6bf82ae23b519ce1a62. Chain 2 (Bitcoin): anchored in block 956440 (2026-07-03T04:03:57Z), 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/FIBAR2300419.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xc65b4b77081908abd2fbce5f00f7b63e90e9f7d5ca26e35795537476194cafad. 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/FIUM71500311.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xc65b4b77081908abd2fbce5f00f7b63e90e9f7d5ca26e35795537476194cafad. 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/FIUM71500311.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x27aaa6d85583d7f8d0db471bb50a8d29dca3d3fc7a9e563754e4803a35e9ac57. 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/FI5RR1200009.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x36c46bd83fc683d293d4bcda1b824e16515f43668aa9987a77acb289504c7229. Chain 2 (Bitcoin): anchored in block 956349 (2026-07-02T11:34:59Z), 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/FIBAR2300180.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x39a8fb4bea6d672c834e60283b48cc57524a34fb45562daa6943cea8c08a029f. 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/FIJ7H1300073.
Räplaulajan vapaapäivä (feat. Brädi ja Pappa)
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xf6d39beaa0ba2f3dedc6e655caecfd6f3d3f065543ae76866ede4a90c0622549. Chain 2 (Bitcoin): anchored in block 953513 (2026-06-13T12:47:07Z), 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/FISMC0400025.