Kaseva is a Finnish pop rock band from Tampere, Finland. Kaseva is well known from its beautiful melodies, harmony singing and playing 12 string guitars, and combining many styles of music and instrum
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 0xb0f87c29df52493e303bd1b2fd5e4cd104e651d51fefd44b3eb669c77ab0730a. 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/0c1d8daf-c511-4b40-8b65-10348b0e1d89.json and https://artists.proofprofile.net/proofs/artist/0c1d8daf-c511-4b40-8b65-10348b0e1d89.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 0xc2d07c6be3960fccd0661cb6bc47b2f3de8ee0ea9abee61783a900da055c6a63. 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/FISBA7300277.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x6b7c255bbde6df73f95b509839fcadc74aa0096836b6148c60596c2058b91b02. 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/FIUM71202137.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x0db495785ffd602d45501d3e219c5f1733e1532745d5f4d395d88fd6123f3c60. 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/FIWMA0300036.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x04f9e786153b4e50cdc3d754b367d536e6f596a688a3c9ec148b5c830427df04. 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/FIUM71100150.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xa1da498182965b5db44c8587f7c0d3272aeedd1209a8659fe672fb2d8036af07. 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/FIUNP0300192.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x7461cedc4b0016af2e26c53d7769599307ef41dd342eb69b69a4c7803736b18d. 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/FIEFE8000002.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x68773838d678b74d4370b58db3af53fd34566399b80fc5427b535af5852bbaf5. 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/FISOF1710011.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x5f6b2bc0f171e0d29831092cfb2f96ad1e3ab55161ed22ddf8365bfebb1f5998. 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/FISOF1710012.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x0b9bce9ddac4c8da80d148cfb4a98344e9e5226221091bb039deb363c0c6687c. Chain 2 (Bitcoin): anchored in block 957073 (2026-07-07T18:39:05Z), 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/FISBA7600266.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x3f598592c6e84fa84746c33d9eabe752b4aedc49ebc2e79fc895057e38ad9fac. 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/FIEFE8200082.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x3400e2c0a18ca711d6940b2728b1101a245dfc8eb3786fb94908b8d59ece4fb4. 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/FISBA7400077.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xbf5c914e4ae07e017a561cae9c8de4e266d5c2b78637dae3a1fdfbc7545eb502. Chain 2 (Bitcoin): anchored in block 959144 (2026-07-22T15:38:35Z), 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/FIEFE8200012.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xb94b187f9f308087f3c5b967efdacea812e35656535017bd0a0a9c78b6708855. Chain 2 (Bitcoin): anchored in block 959163 (2026-07-22T20:52:14Z), 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/FISBA7400132.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xc05719bd2afac6a82cb61b54c9fe41271bca6381b6030953f6f11896e3e58cb2. 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/FISBA7400078.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x3400e2c0a18ca711d6940b2728b1101a245dfc8eb3786fb94908b8d59ece4fb4. 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/FISBA7400077.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x22e76f320a261dab8fd67101c0f1e2701434544b39544b2c3fe8d463304e533c. 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/FISBA7500075.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xf945dcaced3109edeba6f78d8cb85d9c3ad0e0a850b2e8ed08586a8f03020409. 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/FISBA7600259.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x0b9bce9ddac4c8da80d148cfb4a98344e9e5226221091bb039deb363c0c6687c. Chain 2 (Bitcoin): anchored in block 954130 (2026-06-17T19:07:14Z), 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/FISBA7600266.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xbf5c914e4ae07e017a561cae9c8de4e266d5c2b78637dae3a1fdfbc7545eb502. Chain 2 (Bitcoin): anchored in block 959159 (2026-07-22T20:18:03Z), 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/FIEFE8200012.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xa20036b65aafd11f0cbc75eb42a7a84b811c248f250e265631a097a8cae33ed2. Chain 2 (Bitcoin): anchored in block 959144 (2026-07-22T18:07:39Z), 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/FIEFE8200010.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xde2bc610d2008fb1ffd8d70bcb5e493b0bf21fc12cd8c9999796e88e908c2bbb. 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/FIEMX2500054.