Trond-Viggo Torgersen (born 14 June 1952 in Oslo, Norway) is a Norwegian physician, broadcaster, television host, actor, comedian, singer, songwriter, artist and former children's ombudsman. Artistic
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 0xa778d367809773b47d86b77b82bdc5e1a76099cd85d2e42b68d2d23b0e56923f. Chain 2 (Bitcoin): anchored in block 953408 (2026-06-12T19:28:13Z). Bridge: the canonical record inside this Bitcoin proof contains the same CopyrightID. Verify: download https://artists.proofprofile.net/proofs/artist/0107630e-4af9-4cd0-80e1-b84466c7407b.json and https://artists.proofprofile.net/proofs/artist/0107630e-4af9-4cd0-80e1-b84466c7407b.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 0x1a3e9beb9ab07ef8f77fa662cd5b54a2ab7fc96c372ef6132ee5efe732f16778. 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/NOUM70700539.
Bare Barn Er Barn (Men Alle Er Vi Barnebarn)
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x6001e3164df15063ae63724bc9841a93e1cceaace1925508d919745c61e9d223. Chain 2 (Bitcoin): anchored in block 953536 (2026-06-13T17:25:41Z), 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/NOACP8501040.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x1a3e9beb9ab07ef8f77fa662cd5b54a2ab7fc96c372ef6132ee5efe732f16778. 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/NOUM70700539.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x9ad58886207026239b465f858c7cb2d97ec87d397aaf99cfdffb7a87b06ef4c6. 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/NOAAC9907030.
Time for Celebration - New Music for Concert Band - Demo Tracks 2021-2022
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x6fefdb8338432488236dd6f56b348d0cabd203e6f5feb5cfb925366655088ca5. 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/NODGN2107080.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x1651b6a14fd0f0e9427a0b963cc113db030ea56147ae258c32fc933718a7f7cd. 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/NOFLL5852020.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x0e290a062d70becdf181701690f2382603a6438931e97fb73a787df3a07145f4. Chain 2 (Bitcoin): anchored in block 957011 (2026-07-07T08:25:35Z), 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/NOFLL5852070.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xdb44caadee8593af8ad7b53632f871cc02073ca352126e4a6cc0683a460286e3. Chain 2 (Bitcoin): anchored in block 953536 (2026-06-13T17:25:41Z), 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/NOFLL5852120.