Sirius is the brightest star in the night sky, located in the southern constellation of Canis Major. Its name is derived from the Greek word (Latin script: ; ). The star is designated Canis Major
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 0x8b8f36915bd737b0c37d4dc71372c4c4ce66b4640415ee49a1f3a8d846683cb6. 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/99c7da4b-03cc-4f12-914c-487e2341030b.json and https://artists.proofprofile.net/proofs/artist/99c7da4b-03cc-4f12-914c-487e2341030b.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 0x5baf9e30338f5fd4e9ea359865a66548cb6e15dd606568e74fdc0ab6ebcb3153. Chain 2 (Bitcoin): anchored in block 956422 (2026-07-03T01:01:38Z), 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/NOAAC1000082.
Always On My Mind (feat. Tommy Fredvang)
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x6f2222cf48ccdb80dd0f2b01c009a26930e30f554e51d55b4000197050e6f2f9. 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/NOAAC1100178.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x1da6e9c235d71b9cc2463559faf152db0949998258350c6d3c1c919094aa5d3b. 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/NOBLV1203010.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x4fa62f291775cd6711850426af96856b794f9f6c186a53769dec4a5b794b5676. 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/NOBXX1301010.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x409d75f9878d95b03280c3d47c2276d4d9635b3fead2ee980fcce29d6a997766. Chain 2 (Bitcoin): anchored in block 958157 (2026-07-15T15:22:40Z), 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/NOG841423010.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x344c20f29c13d3801f33b77f49e60782971b64294bffe44426d84bcbfbe653ac. Chain 2 (Bitcoin): anchored in block 958991 (2026-07-21T11:11:16Z), 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/NO60G1801011.