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 0xd6343984f69be0b92a3de1a73ccff5fbf3c77d4d4d330caaf273704c6aa11865. 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/dce551cf-96df-4964-8131-588de1f1cf2c.json and https://artists.proofprofile.net/proofs/artist/dce551cf-96df-4964-8131-588de1f1cf2c.ots, run `ots verify -f record.json proof.ots` (https://opentimestamps.org).
You're Mine (Stephane Deschezeaux Remix)
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 0xcb1ce288641b466270a597f2c72f3d83da5665ca0e2fb6e6a8559a85c653726e. Chain 2 (Bitcoin): anchored in block 956476 (2026-07-03T09:04:44Z), 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/GBKQU1984495.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xd357f500d3e622231818f60f3a313d218d664d69705e2ad04344ca5e7adfe17b. 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/GBKQU2408701.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x8a61a280bd176ab9cff5dd260c207bbf775842e570183d6970d3304b76f713f7. Chain 2 (Bitcoin): anchored in block 958194 (2026-07-15T21:37:43Z), 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/GBLV62404654.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xb23b63c1c7e7d2d94ec41707f28b11566b98684cee98cab7e783c8a618166e5e. Chain 2 (Bitcoin): anchored in block 958143 (2026-07-15T10:15:04Z), 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/GBKQU2506745.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xddec36fb62e625bf1e6bbaaab91d227d0cfe6366ab1cfcddce67806b8444af6d. Chain 2 (Bitcoin): anchored in block 959105 (2026-07-22T09:08:33Z), 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/GBKQU2515015.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xc274c0177a351b34911091b669bbec65e244b70e7035ee7b7353d53ac410d323. Chain 2 (Bitcoin): anchored in block 958484 (2026-07-18T03:34:53Z), 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/GBKQU2526614.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xd84d8a52927e58a0909f717ddaea9bbf9fb11f5bb1a97013f02d875c9a2215a2. Chain 2 (Bitcoin): anchored in block 957120 (2026-07-08T03:22:41Z), 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/GBLV61509662.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x3a669adad4363ef3619ff203839b18c8f8c60cb493eb6d14f25be96d4737b735. Chain 2 (Bitcoin): anchored in block 957124 (2026-07-08T03:53:27Z), 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/USWU31300190.