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 0xb44bc28a50f41780bdb9a286a39f47e0ade3f2eb26f5a85257bd35be89056597. 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/9bc09cf5-4faa-4378-8d30-6674faad990d.json and https://artists.proofprofile.net/proofs/artist/9bc09cf5-4faa-4378-8d30-6674faad990d.ots, run `ots verify -f record.json proof.ots` (https://opentimestamps.org).
Koom Qash (Music from Al Qamar Akher El Donya TV Series)
Koom Qash - Music from Al Qamar Akher El Donya TV Series
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 0xb5a1daf1efd6affe6a00e02487cf39bfd5da7c2b41807c5ea345506f69d1a771. 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/FR59R2050352.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x54fd0a11d7533cd6c9312b265d58b6434b7be5b054de7234ee8401da213d4d80. Chain 2 (Bitcoin): anchored in block 958074 (2026-07-14T22:45:25Z), 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/EGA092000107.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x953c2e2dc312e4e2804dab111c20abfe9074c44a9c10eee38f63d16dfe8015ed. Chain 2 (Bitcoin): anchored in block 958885 (2026-07-20T15:39:16Z), 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/EGA092100105.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xcfbb1bd69bad0b90fa57c6ef5b07935cb00550431d27e7272f2acbfbc334b4e9. Chain 2 (Bitcoin): anchored in block 958716 (2026-07-19T10:15:55Z), 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/EGA092300107.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x1306d69f5a26206265f73b76830c11db5cfde1271ba4730c2fc74677b478fd1c. Chain 2 (Bitcoin): anchored in block 958798 (2026-07-20T01:57:22Z), 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/EGA092200308.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x44480189d5077ded37a51376a427f9784dddf892b5629028622c046d929c674f. Chain 2 (Bitcoin): anchored in block 957788 (2026-07-13T02:37:37Z), 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/DGA062526209.