Kari Juhani Valdemar Peitsamo (born 26 August 1957) is a Finnish musician whose style has changed over the years from acoustic avant-garde pop to electric rock. His best-known song is probably "Kauppa
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 0x8df9a7d43f7920e536461235a9167df480eb13f7fd96dc352e983646bef529ab. Chain 2 (Bitcoin): anchored in block 953750 (2026-06-15T06:12:23Z). Bridge: the canonical record inside this Bitcoin proof contains the same CopyrightID. Verify: download https://artists.proofprofile.net/proofs/artist/ac1473d6-96ed-4ec6-beaa-b775336431e2.json and https://artists.proofprofile.net/proofs/artist/ac1473d6-96ed-4ec6-beaa-b775336431e2.ots, run `ots verify -f record.json proof.ots` (https://opentimestamps.org).
Lähde autoiluretkelle suureen etelän kanjoniin
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 0x1efd1d7ffb3b41c7071ff07ac7c49c4d8ba1169fb5dc9bcff5b87f8d707855ad. Chain 2 (Bitcoin): anchored in block 958157 (2026-07-15T15:18:37Z), 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/FIUM71201866.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x8e72cf73df7ac041add6327a1f1f9fd69434050c801abf2a817f7ecebd906f48. Chain 2 (Bitcoin): anchored in block 958180 (2026-07-15T20:11:32Z), 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/FIUM71202295.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x64bdd7cb4b5deddcbde2c4d75a3027039fe47dcd54a7aefecfc9e59c2deca3d5. 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/FIUM71201904.
Gotta Build a Railroad, Gotta Build a Train
The Second Coming of Mr. Jesus H. Christ
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xaeb87f43bc310245a6f3566126430ca8a309e32874a474ecf1f40712062d6975. Chain 2 (Bitcoin): anchored in block 958792 (2026-07-20T01:29:30Z), 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/FIRCR0700005.