Alexander Igorevich Rybak (; born 13 May 1986) or Alyaksandr Iharavich Rybak () is a Belarusian-born Norwegian singer, songwriter and actor. Based in Oslo, Norway, Rybak extensively worked on televis
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 Note: an OTS proof may carry multiple Bitcoin attestations; OTSBitcoinBlock is the earliest confirmed one — a later attestation inside the proof corroborates it and is not a mismatch
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xd834a5e17c83bfdf0eaf1f65ca08c2925aef6a7a3a9e0835e521ba268ee9886d. Chain 2 (Bitcoin): anchored in block 953407 (2026-06-12T19:24:56Z). Bridge: the canonical record inside this Bitcoin proof contains the same CopyrightID. Verify: download https://artists.proofprofile.net/proofs/artist/f5219456-734b-4b5b-850e-a367f6f11139.json and https://artists.proofprofile.net/proofs/artist/f5219456-734b-4b5b-850e-a367f6f11139.ots, run `ots verify -f record.json proof.ots` (https://opentimestamps.org).
Trolle Og Den Magiske Fela - Sangene fra eventyret
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 Note: an OTS proof may carry multiple Bitcoin attestations; OTSBitcoinBlock is the earliest confirmed one — a later attestation inside the proof corroborates it and is not a mismatch
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xda36cf96a23340ea84ac7d40a43c558fccd2922f5843b5653417b0ce2866cb55. 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/NO2HW1501012.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x481790bd2fbd7791f50f64887c2eafc5a99a58b6a7d154e5dba1711f44f518b7. 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/NO23B0900001.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x8c1273ec9aa6ade65822d4ae90265d70b3ddd3a5835ee6b0f688f1ff0b659185. 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/NO23B0900016.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x27c842b6cd08a2a5d2a4da81168bba0a6f8288c47407cbb599cc9dbe76feef59. Chain 2 (Bitcoin): anchored in block 960348 (2026-07-31T05:17:02Z), 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/NOFFM1550100.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x2392f938dcf708c84e8b609d0d87bada6a062e9cd504a961e05216b923e70221. 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/NOJRA1307011.
En hyllest til Jahn Teigen - Hele serien
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xc306dee57565ea172453b95e32a7dc1474ce0f020bbea0a6a21f2fa55748cc6a. 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/NOCLM1613120.
Vi Har Den Ære. En Hyllest Til Thorbjørn Egner
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x6defbc6e6047b872fca4c2cfb7040cc042cb02fb73a3e00376666adfff3966eb. 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/NOHMA1255030.
Into a Fantasy (From "How to Train Your Dragon 2")
How to Train Your Dragon 2 (Music from the Motion Picture)
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xf2516217c894407380c0a355b1f527510affcc765ea53e44a32536b5b50260bc. 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/USSM11403984.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xf6784fe18e092b84344498590a4af4e56c77da3afa9cff4d0c345c2d24295753. Chain 2 (Bitcoin): anchored in block 960340 (2026-07-31T03:15:04Z), 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/SEPEL0903704.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x6a06bb503a1749aa997d3c286492515e184e69d44bd8d3d99f72845787a4d872. Chain 2 (Bitcoin): anchored in block 960138 (2026-07-29T19:35:34Z), 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/SE3AK1600101.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xe43b3de278e21c58b3ad7b0dcc75a44e879ca0a21c1d3cfd6ad684b5b7a37fee. Chain 2 (Bitcoin): anchored in block 956302 (2026-07-02T03:30:09Z), 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/NO2HW2101020.
Vi Har Den Ære - En Hyllest Til Thorbjørn Egner
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x6defbc6e6047b872fca4c2cfb7040cc042cb02fb73a3e00376666adfff3966eb. Chain 2 (Bitcoin): anchored in block 953515 (2026-06-13T12:53:06Z), 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/NOHMA1255030.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x0d268e429d4207b207adcde40fff8e76899bbf3c3be945546619a749bb3211d4. Chain 2 (Bitcoin): anchored in block 960099 (2026-07-29T11:30:20Z), 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/NOHMA1255120.