Folque is a Norwegian folk rock band founded in 1973 by Morten Bing, Jørn Jensen, Eilif Amundsen, Lisa Helljesen, Espen Løvstad, Trond Øverland, and Trond Villa. In 1972 a subset of the band was initi
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 0xcd591b536e55cb66574ae1db248918ba21dda2d69c2446c165b27faa1fd6fe93. Chain 2 (Bitcoin): anchored in block 953626 (2026-06-14T11:41:45Z). Bridge: the canonical record inside this Bitcoin proof contains the same CopyrightID. Verify: download https://artists.proofprofile.net/proofs/artist/24e10ac2-34f8-4771-8cfb-1cdde48ad6e1.json and https://artists.proofprofile.net/proofs/artist/24e10ac2-34f8-4771-8cfb-1cdde48ad6e1.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 0x7a845351d2c10383cea3a83cb44b42036970626148309f284b0af521d64ee33d. Chain 2 (Bitcoin): anchored in block 958212 (2026-07-15T23:25:50Z), 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/NOUM71101509.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x862c62c1dfb04573b123dea49c2bc80f0ae7ef2156fd885f8d23c97af5ec4e75. Chain 2 (Bitcoin): anchored in block 958074 (2026-07-14T22:45:25Z), 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/NOUM71101512.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x9ce3395787d3a367674b36663b90342be84ea880a4e580e7959b332e13b03efa. Chain 2 (Bitcoin): anchored in block 958720 (2026-07-19T10:53:46Z), 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/NOUM71101513.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x1115ab94aaf5ce599a49e424e12bf32aa933ed4e638336286bd23526bc49ba36. 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/NOUM71101495.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x628e479f74316db7d9679bfab64f7f62dbc566c6cb2629ca1fec187f08cc242d. 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/NOUM71500196.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x65d108a6f9864266520d4a434559e434735e15000f10af5484844c3442983ba2. Chain 2 (Bitcoin): anchored in block 958325 (2026-07-16T23:46:54Z), 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/NOUM71500197.