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 0x1b00aa90f64eb226a0fe3ea929bf3551e0619a6d160768c06e81b0a8ff4c03a6. Chain 2 (Bitcoin): anchored in block 953827 (2026-06-15T19:59:56Z). Bridge: the canonical record inside this Bitcoin proof contains the same CopyrightID. Verify: download https://artists.proofprofile.net/proofs/artist/d453412d-ee8b-4723-9096-af47d4c6c6e3.json and https://artists.proofprofile.net/proofs/artist/d453412d-ee8b-4723-9096-af47d4c6c6e3.ots, run `ots verify -f record.json proof.ots` (https://opentimestamps.org).
The Night Without You is Exceptionally Cold
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 0x740c5d4224d972cc13683023a221260a3fc6f5390b1a7a1ae9ef1e18cc0efd80. Chain 2 (Bitcoin): anchored in block 958180 (2026-07-15T20:36:48Z), 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/KRD512000007.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xda631672fe2e4467f9589e25c14c46255712629913deb41e898d12af55ac5479. Chain 2 (Bitcoin): anchored in block 958774 (2026-07-19T22:50:19Z), 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/KRD512100001.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xf17dceaa353d8be60252b3008e32985f2526c4676e63d5df811ae187794fdd0d. Chain 2 (Bitcoin): anchored in block 959010 (2026-07-21T14:07:42Z), 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/KRD512200005.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x5822cbee80c19662fd019d09c0c76dee9516bf458f2cecb8d4c649f24f91065c. Chain 2 (Bitcoin): anchored in block 958212 (2026-07-16T02:12:49Z), 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/KRD512200009.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x3337b7347285b4dff6b4ee9d6d74545f04cb63ce0e8ffbd9c6a8c26be113429d. Chain 2 (Bitcoin): anchored in block 958622 (2026-07-18T22:58:55Z), 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/KRD512200011.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x0ac6f2733f2e5c6736dc0ebe1a9de841581d746b6797767c8f05e2c468320417. Chain 2 (Bitcoin): anchored in block 958176 (2026-07-15T17:14:36Z), 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/KRD512500002.