NORRA or Norra may refer to: Nordic Regional Airlines, a Finnish airline operating on behalf of, and formerly majority-owned by, Finnair National Off-Road Racing Association, a desert off-road racin
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 0x7edaf183c0823917596cc3de2e2404bb06d75d9746ca591bfa4d83b1ecfd7ca8. 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/041bdc98-0ad9-4592-a494-c2875795553e.json and https://artists.proofprofile.net/proofs/artist/041bdc98-0ad9-4592-a494-c2875795553e.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 0x25d689b0730ee549e5692261773859f9f3f221ead805c22bf447380b73a734d9. 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/QM6P42139782.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xeb6477eda506061030bfb37e779873127fdfca560203e802941655dec1acd63d. Chain 2 (Bitcoin): anchored in block 953520 (2026-06-13T13:32:09Z), 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/GBKQU2370745.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x7c01ab865b3313a3da0c91f76a22d65d877723ee3e7e8737d9cf8d4df23dbf06. Chain 2 (Bitcoin): anchored in block 953528 (2026-06-13T15:41:10Z), 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/QM6P42218799.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x85d4baa72555d99adcb147e43703482174ea4a5d7ad69ff4a7bb71e21afe8ba3. Chain 2 (Bitcoin): anchored in block 953520 (2026-06-13T13:32:09Z), 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/QM6P42207234.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xc1566ee81ad3925cf036a82017f426b51d63f7bef82026f732ed148a88ce174d. 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/QM4TW2232858.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x335e93670100fe0cbca31c938aafce22ecc2470a87447283006e752c56d15a5b. 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/QMFME2117736.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x709bfabf49051d75116f46e02335df5cdb306a3cc9a476fce814b8e05e23b29d. Chain 2 (Bitcoin): anchored in block 953528 (2026-06-13T15:41:10Z), 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/GBSMU9542995.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xbcebdec2818f0d3f3d97b1db34553c71a0e5f39d83a53c7f738e5a9f9787ca15. Chain 2 (Bitcoin): anchored in block 953528 (2026-06-13T15:41:10Z), 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/GBKQU2387209.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xa9183ea6978439a7f52795a6a3ea2641626538941742c7c701ee4cb36b7610e1. Chain 2 (Bitcoin): anchored in block 953528 (2026-06-13T15:41:10Z), 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/GBLV62317871.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xbe5d4278606ffbf1dcc810adbe3bd7e014e5e0735d41095df2254e680c451e93. Chain 2 (Bitcoin): anchored in block 953520 (2026-06-13T13:32:09Z), 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/GBLV62306700.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x45033979ce7a188b945520e60a46e81fe57da49cc8a5c82946a412870006c1bc. Chain 2 (Bitcoin): anchored in block 953520 (2026-06-13T13:32:09Z), 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/GBLV62301857.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x8eda16d825f7f047f428661f8533f6f2bae941e60bcd156b6b1b30004c9d2452. Chain 2 (Bitcoin): anchored in block 953528 (2026-06-13T15:41:10Z), 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/GBKQU2397915.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xc160923c10877450bf7eec2d3258bf59d808e46ff76e3ae2fd39af16c6a72463. Chain 2 (Bitcoin): anchored in block 953520 (2026-06-13T13:32:09Z), 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/GBKQU2385838.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xb7a6abde835598ae067f0ca5ceee370b7bab7c2a7d2cedabcda30e128f27f38a. Chain 2 (Bitcoin): anchored in block 953520 (2026-06-13T13:32:09Z), 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/GBKQU2339692.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xf61280a3ac95820cd19c4936851bdedbd1494527f79eadc0353384dcbb0bdc65. Chain 2 (Bitcoin): anchored in block 953528 (2026-06-13T15:41:10Z), 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/GBKQU2312452.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xd566ce18594f4376921d5e83e7742cc5de07096e361aca228aa2bcf7cc54ea93. Chain 2 (Bitcoin): anchored in block 953520 (2026-06-13T13:32:09Z), 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/GBKQU2307124.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xa7ef629621585ca4b309f1653d46c277d3a5d76869dd45b85c3cd4b5a28732de. Chain 2 (Bitcoin): anchored in block 953520 (2026-06-13T13:32:09Z), 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/GBLV62215884.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x432ae3112b628ce76baf298148034337af57cdcf07d3c7e7be87ad3b5440c647. Chain 2 (Bitcoin): anchored in block 953528 (2026-06-13T15:41:10Z), 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/GBLV62203333.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x61a72c58652f8ac69e26e7a47b6c4f13deb79c0395744a35527285baf778c1d5. 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/GBKQU2299690.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x1ea12042cee14876766c4180602b4afc57ba1a64d1125fa4d537198f14392ec5. 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/QMDA62205618.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x88854a1a0425a4700908e34f29ad88cc2aecbb7f32d44476c188922c5c1b136d. Chain 2 (Bitcoin): anchored in block 953528 (2026-06-13T15:41:10Z), 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/QM4TW2244429.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xbb37aeb660504087d15b78a95869e1b1689fdf9bd321e7a7d0cac23a5060a97c. Chain 2 (Bitcoin): anchored in block 953528 (2026-06-13T15:41:10Z), 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/QM6N22148514.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xeee50d4a66281ea51b46018200bbf40f71703015b1a7c6e798e680cb40d51fb7. Chain 2 (Bitcoin): anchored in block 953528 (2026-06-13T15:41:10Z), 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/GBSMU9077846.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x9f4ce2d46939f510c33a204c5382ffe31c843a6e27ce13692fa1e0f208650b76. Chain 2 (Bitcoin): anchored in block 953528 (2026-06-13T15:41:10Z), 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/GBLV62318387.