Carl Petter Opsahl (born 31 May 1964 in Oslo, Norway) is a Norwegian priest, jazz musician, and journalist. Career Opsahl was involved in the establishment of Caledonia Jazzband (1982) and toured i
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 0xc39ff844da22263cd2066f99d1ed3b5ed5cbfbd046a52fffe33b9940129ad2cb. Chain 2 (Bitcoin): anchored in block 953742 (2026-06-15T04:47:56Z). Bridge: the canonical record inside this Bitcoin proof contains the same CopyrightID. Verify: download https://artists.proofprofile.net/proofs/artist/77ec5321-4b84-499e-9af9-bb2e4e98d728.json and https://artists.proofprofile.net/proofs/artist/77ec5321-4b84-499e-9af9-bb2e4e98d728.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 0x4953ed3041123bb2808ba5f094b45a77c179300ab7787d257d2aa8324253de28. Chain 2 (Bitcoin): anchored in block 956634 (2026-07-04T10:04:33Z), 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/NOHFT0502030.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x35145deddace8ecb210d255b65ea06ff186e8aa1f6b079ba59db61f11e9ad1c6. Chain 2 (Bitcoin): anchored in block 958104 (2026-07-15T05:34:05Z), 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/NOHFT0502090.
Langt Borte, Men Her (Far Away, But Close)
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x1b23c597341c73abc5db96faa4eee371b1994f4d36f6a24db74be806699bf1fc. Chain 2 (Bitcoin): anchored in block 956639 (2026-07-04T11:19:20Z), 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/NOHFT0804060.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x0e4b0f2b4f2e50219a3c47e763f542beeb4862a690b8202d71bcdd94227e1e05. Chain 2 (Bitcoin): anchored in block 956639 (2026-07-04T11:19:20Z), 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/NODKR1601010.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x81398d5121a3d120009cd532dcf145f75d65bc3a61da10adc3a636ea41bf6ae1. Chain 2 (Bitcoin): anchored in block 956639 (2026-07-04T11:19:20Z), 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/NODKR1601060.
Blant dronninger og profeter (Queens and prophets)
Blant dronninger og profeter (Queens and Prophets)
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xf4a88671a0aea4006bedefe72424365e3da67990fd19a0fe99c562684f01959e. Chain 2 (Bitcoin): anchored in block 958487 (2026-07-18T03:43:59Z), 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/NOMK52201050.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x83619c5757ab803d32c5dcbe794cb2d6445d297e2afe68e36e096e06ecf12614. Chain 2 (Bitcoin): anchored in block 956404 (2026-07-17T03:26:55Z), 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/NOMK52201060.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xf2558be93e6d213eaf537dc6b775c1bc5e8413611b3bdcf231979d28935e67cb. Chain 2 (Bitcoin): anchored in block 958891 (2026-07-20T16:05:47Z), 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/NOMK52201110.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x5903dbd6857a056c248f1c55b4b3a1225b03eba9bf7753de10b258e0292e969c. Chain 2 (Bitcoin): anchored in block 956822 (2026-07-05T18:48:28Z), 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/NOMK52301050.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x13bd614e3f3a85b253eb366441e0dd08421cd22e457a7160685f90a45b2b4738. Chain 2 (Bitcoin): anchored in block 958788 (2026-07-19T22:07:06Z), 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/NOMK52301060.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x822cd69c8b9dcbd7dc87ba908c4dff3c78e8e841ad82007ac57f9f2afba13287. Chain 2 (Bitcoin): anchored in block 958544 (2026-07-18T12:14:37Z), 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/NOMK52301070.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x7728916de55d3d2d05c1fe2f54d96f7ab233cf1ff61ca7444e6b234e117fbfe9. Chain 2 (Bitcoin): anchored in block 958341 (2026-07-17T02:26:48Z), 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/NOMK52301100.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x83a0f7bfbdf60ff742c49e5f39a4d58d7e0b8011c0b196f5e71af41caff06684. Chain 2 (Bitcoin): anchored in block 958975 (2026-07-21T08:42:11Z), 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/NOMK52301120.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x08efe091c75953cd374508994638a264c039da9e0f8c95a8df2d971c39b83f01. Chain 2 (Bitcoin): anchored in block 958067 (2026-07-14T21:26:15Z), 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/NOMK52401010.
Some Kind of Reinlender (Dance Theology Mix)
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x192fc4a76e1c96e9aa1292422b726d35110919f625aedb8b6a09d899cd439539. Chain 2 (Bitcoin): anchored in block 958157 (2026-07-15T16:00:17Z), 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/NOMK52401070.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x51b1ecb46cf8c780a769efc18f8239b5a55c52f921ffdcf004098f1ca098cf2d. Chain 2 (Bitcoin): anchored in block 956856 (2026-07-06T01:25:57Z), 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/NOMK52401080.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x0c65c344d7b277d10374fa515ed3f98f3e4a3cd6029545eda2df46abd63d93ea. Chain 2 (Bitcoin): anchored in block 958796 (2026-07-20T02:01:50Z), 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/NOMK52401110.