Sielun Veljet () was a Finnish rock band of the 1980s. They were formed soon after the disbanding of Hassisen Kone by its former frontman Ismo Alanko. Sielun Veljet never achieved the fame or the reco
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 0x13e9eacd66daaca4baf26ebf7c0553f03c17736cad04d49f5e7fc268eec98423. 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/70d939db-0cf0-4715-828e-a36c8a0a212c.json and https://artists.proofprofile.net/proofs/artist/70d939db-0cf0-4715-828e-a36c8a0a212c.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 0xa1e85577de3cb630b54ee2a1ed14b17bafa00d423427fd1a033b677394230c33. Chain 2 (Bitcoin): anchored in block 958246 (2026-07-16T08:01:51Z), 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/FIUNP8400803.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xb93a6dda73e94d95d2fd5b50090f72bd3984d28744037bd9f1ac123414024b1d. Chain 2 (Bitcoin): anchored in block 956742 (2026-07-05T05:07:15Z), 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/FIUNP8500702.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x567bc1941ddabfd8ac051864f2f29c12862a5bce119285457e0f91c3395beefb. 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/FIUNP8500703.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xd683df47eb434fd107c7658245d45a41d20e1cfa48d8594d53a2cff735311069. Chain 2 (Bitcoin): anchored in block 956656 (2026-07-04T14:03:39Z), 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/FIUNP8500708.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xda2c70a582a20a1ecaa58c119e208e68ddc25ac699fdd196c9b9a974a7628718. Chain 2 (Bitcoin): anchored in block 958728 (2026-07-19T12:24:55Z), 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/FIUNP8500712.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xbd06b128a82dca77a2c23f3f86a5f21e929be7ed6a29f53d361ae82cefb51868. 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/FIUNP8600902.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x9bca631a0e2779fc64efef49b82f90bc568125306f36e6f1fc0fdc632f5481d9. Chain 2 (Bitcoin): anchored in block 956476 (2026-07-03T09:04:44Z), 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/FIUNP8600904.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xdce5fab0d267f40153c8226ad8535c5a47ec74bbc3703dbc5da43b08c9cbd773. 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/FIUNP8601001.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xb9046117eb3ffa7aa3cfa4a06c2bce52cf2c018cc71094fbc82c6b0d4f7b9eca. Chain 2 (Bitcoin): anchored in block 956889 (2026-07-06T06:56:49Z), 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/FIUNP0600314.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xccfa8dfd45e59cfa14888a776fc401133aa974d417f0d46078cc662ee08d6dbb. 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/FIUNP8500701.