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 0x83c4d7fbe5d5b7b7f3b65782b3a440c966f5e3e35fa0c53e632dbcb4bc494c8d. Chain 2 (Bitcoin): anchored in block 953696 (2026-06-14T21:45:57Z). Bridge: the canonical record inside this Bitcoin proof contains the same CopyrightID. Verify: download https://artists.proofprofile.net/proofs/artist/720672e1-c1d4-4568-980b-724def4bc50b.json and https://artists.proofprofile.net/proofs/artist/720672e1-c1d4-4568-980b-724def4bc50b.ots, run `ots verify -f record.json proof.ots` (https://opentimestamps.org).
Sleepless night-sitting (Sex Schön remix)
She Thought She Would Last Forever Remixed
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 0x1cdcbdaf6a4fcef0adb6be1463b534bdfc89e9bf8349430a61193ab63117f62b. Chain 2 (Bitcoin): anchored in block 957075 (2026-07-07T18:50:38Z), 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/DETB31644050.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x48f41bfdb63721965db23954e115a8d25919f856a7f8145fed3e1826f7d8ee00. Chain 2 (Bitcoin): anchored in block 958627 (2026-07-18T23:33:54Z), 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/DECY52300097.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x31c040d2048cc9e279143da5b0ad0f29f01e9bb3b7e6c4a796cbdb2c045fe047. Chain 2 (Bitcoin): anchored in block 956375 (2026-07-02T16:51:38Z), 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/DETB32401302.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x3f9c1483b5cbfd32c94063da1013194056f661a93264b0825d40d51fba852498. Chain 2 (Bitcoin): anchored in block 958083 (2026-07-15T01:50:31Z), 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/DETB32401377.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x31c040d2048cc9e279143da5b0ad0f29f01e9bb3b7e6c4a796cbdb2c045fe047. Chain 2 (Bitcoin): anchored in block 956772 (2026-07-05T10:01:46Z), 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/DETB32401302.