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 0x1c70833a0dead959f63f5b463ddc2048feedd6a83ec9a64955cbdeffe4a138c0. Chain 2 (Bitcoin): anchored in block 953697 (2026-06-14T21:49:28Z). Bridge: the canonical record inside this Bitcoin proof contains the same CopyrightID. Verify: download https://artists.proofprofile.net/proofs/artist/65bdf568-8efd-4ad7-b0c1-e42358e058b3.json and https://artists.proofprofile.net/proofs/artist/65bdf568-8efd-4ad7-b0c1-e42358e058b3.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 0x4fa43fa33e75bff0de1d78d0b3f56994afee4fec8d2638346dbf79e1e1d62cdc. Chain 2 (Bitcoin): anchored in block 958341 (2026-07-17T03:34:40Z), 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/QZHN42229445.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x99dbdfc9a646eea47da16dca201cf3dab700108ca43b82625bca24361b466c25. Chain 2 (Bitcoin): anchored in block 956656 (2026-07-04T14:03:39Z), 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/QZK6J2205547.
Small Town Blues (Solid Mitch Remix Version)
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xa2a1ac2c816b12ea26d6111f1a84cd2740ba34277166bb2c807b83a193634b6e. 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/QZRP52270122.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x5cc637a838e070c6daac59beff17cc2760b8224ec8800c5caf8a2ef42e277be4. Chain 2 (Bitcoin): anchored in block 958880 (2026-07-20T15:22:33Z), 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/QZPLS2358545.
Daydreams And Algorithms (Gorilla Remix)
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xce2f10a5b927c0b5e0999f93f2c270e8a6b8ca087e1fbf1c74e97ed85f5b27c7. Chain 2 (Bitcoin): anchored in block 958695 (2026-07-19T07:37:00Z), 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/QZPEW2435346.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x918e0deba2f96c0f1139c1731a76f6a43a5f197754af858284429b559d41b191. Chain 2 (Bitcoin): anchored in block 957774 (2026-07-12T23:51:20Z), 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/QZVEM2560226.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xe4b94bbe72da08539aa1f7273f20df5e85328066af8d0e63d5cd8b90431b81e3. Chain 2 (Bitcoin): anchored in block 956857 (2026-07-06T01:26:17Z), 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/QT4K52519469.